/* ========================================================================
   ITRAYNE - Generative AI Audio Platform
   Comprehensive Stylesheet
   Version: 1.0
   ======================================================================== */

/* ========================================================================
   CSS CUSTOM PROPERTIES (DESIGN TOKENS)
   ======================================================================== */

:root {
    /* Primary Colors */
    --color-black: #000000;
    --color-white: #FFFFFF;
    --color-charcoal: #0A0A0A;
    --color-dark: #0F0F0F;
    --color-darker: #141414;
    --color-darkest: #1A1A1A;

    /* Accent Colors - Purple/Indigo Spectrum */
    --color-indigo: #4F46E5;
    --color-indigo-dark: #4338CA;
    --color-indigo-light: #6366F1;
    --color-purple: #7C3AED;
    --color-purple-dark: #6D28D9;
    --color-purple-light: #8B5CF6;
    --color-violet: #A855F7;
    --color-violet-light: #C084FC;
    --color-fuchsia: #D946EF;
    --color-pink: #EC4899;

    /* Neutral Colors */
    --color-gray-50: #FAFAFA;
    --color-gray-100: #F5F5F5;
    --color-gray-200: #E5E5E5;
    --color-gray-300: #D4D4D4;
    --color-gray-400: #A3A3A3;
    --color-gray-500: #737373;
    --color-gray-600: #525252;
    --color-gray-700: #404040;
    --color-gray-800: #262626;
    --color-gray-900: #171717;

    /* Semantic Colors */
    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-error: #EF4444;
    --color-info: #3B82F6;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--color-indigo) 0%, var(--color-purple) 50%, var(--color-violet) 100%);
    --gradient-dark: linear-gradient(180deg, var(--color-charcoal) 0%, var(--color-black) 100%);
    --gradient-glow: radial-gradient(ellipse at center, rgba(124, 58, 237, 0.15) 0%, transparent 70%);

    /* Typography */
    --font-family-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-family-mono: 'JetBrains Mono', 'Fira Code', 'Monaco', 'Consolas', monospace;

    /* Font Sizes */
    --font-size-xs: 0.75rem;      /* 12px */
    --font-size-sm: 0.875rem;     /* 14px */
    --font-size-base: 1rem;       /* 16px */
    --font-size-lg: 1.125rem;     /* 18px */
    --font-size-xl: 1.25rem;      /* 20px */
    --font-size-2xl: 1.5rem;      /* 24px */
    --font-size-3xl: 1.875rem;    /* 30px */
    --font-size-4xl: 2.25rem;     /* 36px */
    --font-size-5xl: 3rem;        /* 48px */
    --font-size-6xl: 3.75rem;     /* 60px */
    --font-size-7xl: 4.5rem;      /* 72px */
    --font-size-8xl: 6rem;        /* 96px */

    /* Font Weights */
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    --font-weight-black: 900;

    /* Line Heights */
    --line-height-tight: 1.1;
    --line-height-snug: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.625;
    --line-height-loose: 2;

    /* Letter Spacing */
    --letter-spacing-tighter: -0.05em;
    --letter-spacing-tight: -0.025em;
    --letter-spacing-normal: 0;
    --letter-spacing-wide: 0.025em;
    --letter-spacing-wider: 0.05em;
    --letter-spacing-widest: 0.1em;

    /* Spacing Scale (8px base) */
    --spacing-0: 0;
    --spacing-1: 0.25rem;   /* 4px */
    --spacing-2: 0.5rem;    /* 8px */
    --spacing-3: 0.75rem;   /* 12px */
    --spacing-4: 1rem;      /* 16px */
    --spacing-5: 1.25rem;   /* 20px */
    --spacing-6: 1.5rem;    /* 24px */
    --spacing-8: 2rem;      /* 32px */
    --spacing-10: 2.5rem;   /* 40px */
    --spacing-12: 3rem;     /* 48px */
    --spacing-16: 4rem;     /* 64px */
    --spacing-20: 5rem;     /* 80px */
    --spacing-24: 6rem;     /* 96px */
    --spacing-32: 8rem;     /* 128px */
    --spacing-40: 10rem;    /* 160px */
    --spacing-48: 12rem;    /* 192px */
    --spacing-56: 14rem;    /* 224px */
    --spacing-64: 16rem;    /* 256px */

    /* Border Radius */
    --radius-none: 0;
    --radius-sm: 0.25rem;   /* 4px */
    --radius-md: 0.5rem;    /* 8px */
    --radius-lg: 0.75rem;   /* 12px */
    --radius-xl: 1rem;      /* 16px */
    --radius-2xl: 1.5rem;   /* 24px */
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 60px rgba(124, 58, 237, 0.3);
    --shadow-glow-sm: 0 0 30px rgba(124, 58, 237, 0.2);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
    --transition-slower: 500ms ease;
    --transition-smooth: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);

    /* Z-Index Scale */
    --z-negative: -1;
    --z-0: 0;
    --z-10: 10;
    --z-20: 20;
    --z-30: 30;
    --z-40: 40;
    --z-50: 50;
    --z-header: 100;
    --z-overlay: 200;
    --z-modal: 300;
    --z-tooltip: 400;

    /* Container Widths */
    --container-sm: 640px;
    --container-md: 768px;
    --container-lg: 1024px;
    --container-xl: 1280px;
    --container-2xl: 1440px;

    /* Component Specific */
    --header-height: 80px;
    --header-height-mobile: 64px;
}

/* ========================================================================
   CSS RESET & BASE STYLES
   ======================================================================== */

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--color-white);
    background-color: var(--color-black);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Improve media defaults */
img,
picture,
video,
canvas,
svg {
    display: block;
    max-width: 100%;
    height: auto;
}

/* Remove default button styles */
button {
    font: inherit;
    color: inherit;
    background: none;
    border: none;
    cursor: pointer;
}

/* Remove default list styles */
ul,
ol {
    list-style: none;
}

/* Remove default link styles */
a {
    color: inherit;
    text-decoration: none;
}

/* Form elements inherit font */
input,
textarea,
select {
    font: inherit;
    color: inherit;
}

/* Remove default textarea resize */
textarea {
    resize: vertical;
}

/* Address element */
address {
    font-style: normal;
}

/* Selection styling */
::selection {
    background-color: var(--color-purple);
    color: var(--color-white);
}

/* Focus visible for accessibility */
:focus-visible {
    outline: 2px solid var(--color-purple);
    outline-offset: 2px;
}

/* Remove focus outline for mouse users */
:focus:not(:focus-visible) {
    outline: none;
}

/* ========================================================================
   UTILITY CLASSES
   ======================================================================== */

.container {
    width: 100%;
    max-width: var(--container-2xl);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--spacing-6);
    padding-right: var(--spacing-6);
}

@media (min-width: 768px) {
    .container {
        padding-left: var(--spacing-8);
        padding-right: var(--spacing-8);
    }
}

@media (min-width: 1024px) {
    .container {
        padding-left: var(--spacing-12);
        padding-right: var(--spacing-12);
    }
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ========================================================================
   HEADER & NAVIGATION
   ======================================================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height-mobile);
    background-color: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    z-index: var(--z-header);
    transition: background-color var(--transition-slow), height var(--transition-slow);
}

@media (min-width: 768px) {
    .header {
        height: var(--header-height);
    }
}

.header.scrolled {
    background-color: rgba(0, 0, 0, 0.95);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.nav__logo {
    display: flex;
    align-items: center;
    z-index: var(--z-50);
}

.logo-icon {
    height: 32px;
    width: auto;
    color: var(--color-white);
    transition: color var(--transition-base);
}

@media (min-width: 768px) {
    .logo-icon {
        height: 36px;
    }
}

.nav__logo:hover .logo-icon {
    color: var(--color-purple);
}

.nav__toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    z-index: var(--z-50);
}

@media (min-width: 1024px) {
    .nav__toggle {
        display: none;
    }
}

.hamburger {
    position: relative;
    width: 24px;
    height: 2px;
    background-color: var(--color-white);
    transition: background-color var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
    width: 24px;
    height: 2px;
    background-color: var(--color-white);
    transition: transform var(--transition-base), top var(--transition-base);
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    top: 8px;
}

.nav__toggle[aria-expanded="true"] .hamburger {
    background-color: transparent;
}

.nav__toggle[aria-expanded="true"] .hamburger::before {
    top: 0;
    transform: rotate(45deg);
}

.nav__toggle[aria-expanded="true"] .hamburger::after {
    top: 0;
    transform: rotate(-45deg);
}

.nav__menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-8);
    background-color: var(--color-black);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-100%);
    transition: opacity var(--transition-slow), visibility var(--transition-slow), transform var(--transition-slow);
}

.nav__menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

@media (min-width: 1024px) {
    .nav__menu {
        position: static;
        flex-direction: row;
        gap: var(--spacing-8);
        background-color: transparent;
        opacity: 1;
        visibility: visible;
        transform: none;
    }
}

.nav__item {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.nav__menu.active .nav__item {
    opacity: 1;
    transform: translateY(0);
}

.nav__menu.active .nav__item:nth-child(1) { transition-delay: 100ms; }
.nav__menu.active .nav__item:nth-child(2) { transition-delay: 150ms; }
.nav__menu.active .nav__item:nth-child(3) { transition-delay: 200ms; }
.nav__menu.active .nav__item:nth-child(4) { transition-delay: 250ms; }
.nav__menu.active .nav__item:nth-child(5) { transition-delay: 300ms; }

@media (min-width: 1024px) {
    .nav__item {
        opacity: 1;
        transform: none;
    }
}

.nav__link {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-medium);
    color: var(--color-white);
    transition: color var(--transition-base);
}

@media (min-width: 1024px) {
    .nav__link {
        font-size: var(--font-size-sm);
        letter-spacing: var(--letter-spacing-wide);
    }
}

.nav__link:hover {
    color: var(--color-purple);
}

.nav__link--cta {
    padding: var(--spacing-3) var(--spacing-6);
    background-color: var(--color-white);
    color: var(--color-black);
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-semibold);
    transition: background-color var(--transition-base), transform var(--transition-base);
}

.nav__link--cta:hover {
    background-color: var(--color-purple);
    color: var(--color-white);
    transform: translateY(-2px);
}

/* ========================================================================
   BUTTONS
   ======================================================================== */

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-4) var(--spacing-8);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    letter-spacing: var(--letter-spacing-wide);
    text-transform: uppercase;
    border-radius: var(--radius-md);
    transition: all var(--transition-smooth);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.button::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, transparent 100%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.button:hover::before {
    opacity: 1;
}

.button--primary {
    background-color: var(--color-white);
    color: var(--color-black);
    border: 2px solid var(--color-white);
}

.button--primary:hover {
    background-color: var(--color-purple);
    border-color: var(--color-purple);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-sm);
}

.button--secondary {
    background-color: transparent;
    color: var(--color-white);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.button--secondary:hover {
    border-color: var(--color-white);
    background-color: rgba(255, 255, 255, 0.05);
    transform: translateY(-2px);
}

.button--full {
    width: 100%;
}

.button__loading {
    display: none;
}

.button.loading .button__text {
    visibility: hidden;
}

.button.loading .button__loading {
    display: flex;
    position: absolute;
}

.spinner {
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ========================================================================
   HERO SECTION
   ======================================================================== */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding-top: calc(var(--header-height-mobile) + var(--spacing-12));
    padding-bottom: var(--spacing-12);
    overflow: hidden;
}

@media (min-width: 768px) {
    .hero {
        padding-top: calc(var(--header-height) + var(--spacing-16));
        padding-bottom: var(--spacing-16);
    }
}

.hero__background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: var(--z-negative);
}

.hero__waveform {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: 400px;
    opacity: 0.5;
}

.wave {
    animation: waveMove 8s ease-in-out infinite;
}

.wave--1 {
    animation-delay: 0s;
}

.wave--2 {
    animation-delay: 2s;
}

@keyframes waveMove {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(-50px); }
}

.hero__particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-glow);
    opacity: 0.5;
}

.hero__content {
    position: relative;
    text-align: center;
    z-index: var(--z-10);
}

.hero__eyebrow {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    letter-spacing: var(--letter-spacing-widest);
    text-transform: uppercase;
    color: var(--color-purple);
    margin-bottom: var(--spacing-6);
}

.hero__headline {
    font-size: var(--font-size-5xl);
    font-weight: var(--font-weight-black);
    line-height: var(--line-height-tight);
    letter-spacing: var(--letter-spacing-tight);
    margin-bottom: var(--spacing-6);
}

@media (min-width: 768px) {
    .hero__headline {
        font-size: var(--font-size-6xl);
    }
}

@media (min-width: 1024px) {
    .hero__headline {
        font-size: var(--font-size-7xl);
    }
}

@media (min-width: 1280px) {
    .hero__headline {
        font-size: var(--font-size-8xl);
    }
}

.hero__headline-accent {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__subheadline {
    font-size: var(--font-size-lg);
    color: var(--color-gray-400);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: var(--spacing-10);
    line-height: var(--line-height-relaxed);
}

@media (min-width: 768px) {
    .hero__subheadline {
        font-size: var(--font-size-xl);
    }
}

.hero__cta-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-12);
}

@media (min-width: 480px) {
    .hero__cta-group {
        flex-direction: row;
        justify-content: center;
    }
}

.hero__stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-6);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    padding-top: var(--spacing-8);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

@media (min-width: 768px) {
    .hero__stats {
        gap: var(--spacing-12);
    }
}

.hero__stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-2);
}

.hero__stat-number {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
}

@media (min-width: 768px) {
    .hero__stat-number {
        font-size: var(--font-size-3xl);
    }
}

.hero__stat-label {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    letter-spacing: var(--letter-spacing-wide);
    text-transform: uppercase;
    color: var(--color-gray-500);
}

@media (min-width: 768px) {
    .hero__stat-label {
        font-size: var(--font-size-sm);
    }
}

.hero__visual {
    position: relative;
    width: 100%;
    max-width: 800px;
    margin-top: var(--spacing-12);
    padding: 0 var(--spacing-6);
}

.hero__soundwave-container {
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 1;
}

.hero__soundwave {
    width: 100%;
    height: 100%;
}

.bar {
    animation: barPulse 1.5s ease-in-out infinite;
    transform-origin: center;
}

@keyframes barPulse {
    0%, 100% { transform: scaleY(1); }
    50% { transform: scaleY(0.5); }
}

.bar--1 { animation-delay: 0.0s; }
.bar--2 { animation-delay: 0.1s; }
.bar--3 { animation-delay: 0.2s; }
.bar--4 { animation-delay: 0.3s; }
.bar--5 { animation-delay: 0.4s; }
.bar--6 { animation-delay: 0.5s; }
.bar--7 { animation-delay: 0.6s; }
.bar--8 { animation-delay: 0.7s; }
.bar--9 { animation-delay: 0.8s; }
.bar--10 { animation-delay: 0.9s; }
.bar--11 { animation-delay: 1.0s; }
.bar--12 { animation-delay: 1.1s; }
.bar--13 { animation-delay: 1.2s; }
.bar--14 { animation-delay: 1.3s; }
.bar--15 { animation-delay: 1.4s; }
.bar--16 { animation-delay: 0.0s; }
.bar--17 { animation-delay: 0.1s; }
.bar--18 { animation-delay: 0.2s; }
.bar--19 { animation-delay: 0.3s; }
.bar--20 { animation-delay: 0.4s; }
.bar--21 { animation-delay: 0.5s; }
.bar--22 { animation-delay: 0.6s; }
.bar--23 { animation-delay: 0.7s; }
.bar--24 { animation-delay: 0.8s; }
.bar--25 { animation-delay: 0.9s; }
.bar--26 { animation-delay: 1.0s; }
.bar--27 { animation-delay: 1.1s; }
.bar--28 { animation-delay: 1.2s; }
.bar--29 { animation-delay: 1.3s; }
.bar--30 { animation-delay: 1.4s; }
.bar--31 { animation-delay: 0.0s; }
.bar--32 { animation-delay: 0.1s; }
.bar--33 { animation-delay: 0.2s; }
.bar--34 { animation-delay: 0.3s; }
.bar--35 { animation-delay: 0.4s; }
.bar--36 { animation-delay: 0.5s; }
.bar--37 { animation-delay: 0.6s; }
.bar--38 { animation-delay: 0.7s; }
.bar--39 { animation-delay: 0.8s; }
.bar--40 { animation-delay: 0.9s; }
.bar--41 { animation-delay: 1.0s; }
.bar--42 { animation-delay: 1.1s; }
.bar--43 { animation-delay: 1.2s; }
.bar--44 { animation-delay: 1.3s; }
.bar--45 { animation-delay: 1.4s; }
.bar--46 { animation-delay: 0.0s; }
.bar--47 { animation-delay: 0.1s; }
.bar--48 { animation-delay: 0.2s; }

/* ========================================================================
   FEATURED / PRESS LOGOS SECTION
   ======================================================================== */

.featured {
    padding: var(--spacing-12) 0;
    background-color: var(--color-black);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

@media (min-width: 768px) {
    .featured {
        padding: var(--spacing-16) 0;
    }
}

.featured__label {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    letter-spacing: var(--letter-spacing-widest);
    text-transform: uppercase;
    color: var(--color-gray-500);
    text-align: center;
    margin-bottom: var(--spacing-8);
}

.featured__logos {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-8);
}

@media (min-width: 768px) {
    .featured__logos {
        gap: var(--spacing-12);
    }
}

@media (min-width: 1024px) {
    .featured__logos {
        gap: var(--spacing-16);
    }
}

.featured__logo {
    opacity: 0.5;
    transition: opacity var(--transition-base);
    color: var(--color-gray-400);
}

.featured__logo:hover {
    opacity: 1;
    color: var(--color-white);
}

.featured__logo svg {
    height: 24px;
    width: auto;
}

@media (min-width: 768px) {
    .featured__logo svg {
        height: 28px;
    }
}

/* ========================================================================
   SECTION HEADERS
   ======================================================================== */

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-12);
}

@media (min-width: 768px) {
    .section-header {
        margin-bottom: var(--spacing-16);
    }
}

.section-header--light .section-eyebrow {
    color: var(--color-indigo);
}

.section-header--light .section-title {
    color: var(--color-charcoal);
}

.section-eyebrow {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    letter-spacing: var(--letter-spacing-widest);
    text-transform: uppercase;
    color: var(--color-purple);
    margin-bottom: var(--spacing-4);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-black);
    line-height: var(--line-height-tight);
    letter-spacing: var(--letter-spacing-tight);
    color: var(--color-white);
}

@media (min-width: 768px) {
    .section-title {
        font-size: var(--font-size-5xl);
    }
}

@media (min-width: 1024px) {
    .section-title {
        font-size: var(--font-size-6xl);
    }
}

.section-description {
    font-size: var(--font-size-lg);
    color: var(--color-gray-400);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    margin-top: var(--spacing-6);
    line-height: var(--line-height-relaxed);
}

/* ========================================================================
   TECHNOLOGY SECTION
   ======================================================================== */

.technology {
    padding: var(--spacing-20) 0;
    background-color: var(--color-black);
}

@media (min-width: 768px) {
    .technology {
        padding: var(--spacing-24) 0;
    }
}

.technology__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
}

@media (min-width: 768px) {
    .technology__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-8);
    }
}

@media (min-width: 1024px) {
    .technology__grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.tech-card {
    background-color: var(--color-dark);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    padding: var(--spacing-8);
    transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-smooth);
}

.tech-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow-sm);
    border-color: rgba(124, 58, 237, 0.3);
}

.tech-card__icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-6);
}

.tech-card__icon svg {
    width: 32px;
    height: 32px;
    color: var(--color-white);
}

.tech-card__title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-4);
    color: var(--color-white);
}

.tech-card__description {
    font-size: var(--font-size-base);
    color: var(--color-gray-400);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-6);
}

.tech-card__features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.tech-card__features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    font-size: var(--font-size-sm);
    color: var(--color-gray-300);
}

.tech-card__features li::before {
    content: '';
    width: 6px;
    height: 6px;
    background-color: var(--color-purple);
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

/* ========================================================================
   STATEMENT SECTIONS
   ======================================================================== */

.statement {
    position: relative;
    padding: var(--spacing-20) 0;
    overflow: hidden;
}

@media (min-width: 768px) {
    .statement {
        padding: var(--spacing-24) 0;
    }
}

.statement--dark {
    background-color: var(--color-black);
}

.statement--light {
    background-color: var(--color-gray-100);
}

.statement__background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: var(--z-0);
}

.statement__waveform {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    width: 100%;
    height: 200px;
    transform: translateY(-50%);
    opacity: 0.3;
}

.statement__text {
    position: relative;
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-black);
    line-height: var(--line-height-tight);
    letter-spacing: var(--letter-spacing-tight);
    text-align: center;
    color: var(--color-white);
    z-index: var(--z-10);
}

@media (min-width: 768px) {
    .statement__text {
        font-size: var(--font-size-4xl);
    }
}

@media (min-width: 1024px) {
    .statement__text {
        font-size: var(--font-size-5xl);
    }
}

.statement__text--dark {
    color: var(--color-charcoal);
}

.statement__text-accent {
    display: block;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.statement__text-accent--dark {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.statement--final {
    padding: var(--spacing-24) 0;
}

@media (min-width: 768px) {
    .statement--final {
        padding: var(--spacing-32) 0;
    }
}

.statement__background--animated .statement__waveform--large {
    height: 300px;
    animation: waveFloat 6s ease-in-out infinite;
}

@keyframes waveFloat {
    0%, 100% { transform: translateY(-50%) translateX(0); }
    50% { transform: translateY(-50%) translateX(-30px); }
}

/* ========================================================================
   SOLUTIONS SECTION
   ======================================================================== */

.solutions {
    padding: var(--spacing-20) 0;
    background-color: var(--color-gray-50);
}

@media (min-width: 768px) {
    .solutions {
        padding: var(--spacing-24) 0;
    }
}

.solutions__showcase {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-12);
    margin-bottom: var(--spacing-12);
}

@media (min-width: 768px) {
    .solutions__showcase {
        gap: var(--spacing-16);
        margin-bottom: var(--spacing-16);
    }
}

.solution-card--featured {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-8);
    background-color: var(--color-white);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

@media (min-width: 1024px) {
    .solution-card--featured {
        grid-template-columns: 1fr 1fr;
        gap: 0;
    }
}

.solution-card--reversed {
    direction: rtl;
}

.solution-card--reversed > * {
    direction: ltr;
}

.solution-card__visual {
    background-color: var(--color-charcoal);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-8);
    min-height: 300px;
}

@media (min-width: 1024px) {
    .solution-card__visual {
        min-height: 500px;
        padding: var(--spacing-12);
    }
}

.solution-card__illustration {
    width: 100%;
    max-width: 400px;
    height: auto;
}

.solution-card__content {
    padding: var(--spacing-8);
}

@media (min-width: 768px) {
    .solution-card__content {
        padding: var(--spacing-10);
    }
}

@media (min-width: 1024px) {
    .solution-card__content {
        padding: var(--spacing-12);
    }
}

.solution-card__badge {
    display: inline-block;
    padding: var(--spacing-2) var(--spacing-4);
    background-color: var(--color-indigo);
    color: var(--color-white);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    letter-spacing: var(--letter-spacing-wide);
    text-transform: uppercase;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-4);
}

.solution-card__title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-charcoal);
    margin-bottom: var(--spacing-4);
}

@media (min-width: 768px) {
    .solution-card__title {
        font-size: var(--font-size-3xl);
    }
}

.solution-card__description {
    font-size: var(--font-size-base);
    color: var(--color-gray-600);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-6);
}

@media (min-width: 768px) {
    .solution-card__description {
        font-size: var(--font-size-lg);
    }
}

.solution-card__details {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
    margin-bottom: var(--spacing-6);
}

@media (min-width: 640px) {
    .solution-card__details {
        grid-template-columns: repeat(3, 1fr);
    }
}

.solution-card__detail h4 {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
    color: var(--color-charcoal);
    margin-bottom: var(--spacing-2);
}

.solution-card__detail p {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    line-height: var(--line-height-relaxed);
}

.solution-card__features {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-2);
    padding-top: var(--spacing-6);
    border-top: 1px solid var(--color-gray-200);
}

@media (min-width: 640px) {
    .solution-card__features {
        grid-template-columns: repeat(2, 1fr);
    }
}

.solution-card__features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

.solution-card__features li::before {
    content: '✓';
    color: var(--color-success);
    font-weight: var(--font-weight-bold);
}

/* Solution Grid (Compact Cards) */
.solutions__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
}

@media (min-width: 768px) {
    .solutions__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-8);
    }
}

.solution-card--compact {
    background-color: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-8);
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
}

.solution-card--compact:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-2xl);
}

.solution-card__icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-gray-100) 0%, var(--color-gray-50) 100%);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-5);
}

.solution-card__icon svg {
    width: 28px;
    height: 28px;
    color: var(--color-indigo);
}

.solution-card--compact .solution-card__title {
    font-size: var(--font-size-xl);
}

.solution-card--compact .solution-card__description {
    font-size: var(--font-size-base);
}

.solution-card__specs {
    display: flex;
    gap: var(--spacing-6);
    margin-bottom: var(--spacing-6);
    padding-bottom: var(--spacing-6);
    border-bottom: 1px solid var(--color-gray-200);
}

.spec {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
}

.spec__value {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-indigo);
}

.spec__label {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
    letter-spacing: var(--letter-spacing-wide);
}

.solution-card__features--compact {
    padding-top: 0;
    border-top: none;
}

.solution-card__features--compact li {
    font-size: var(--font-size-sm);
}

/* ========================================================================
   DEMO SECTION
   ======================================================================== */

.demo {
    position: relative;
    padding: var(--spacing-20) 0;
    background-color: var(--color-charcoal);
    overflow: hidden;
}

@media (min-width: 768px) {
    .demo {
        padding: var(--spacing-24) 0;
    }
}

.demo__visual {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.2;
}

.demo__waveform-display {
    width: 100%;
    max-width: 1200px;
}

.demo__waveform-svg {
    width: 100%;
    height: auto;
}

.freq-bar {
    animation: freqPulse 2s ease-in-out infinite;
    transform-origin: center;
}

@keyframes freqPulse {
    0%, 100% { transform: scaleY(1); opacity: 0.3; }
    50% { transform: scaleY(0.6); opacity: 0.5; }
}

.demo__content {
    position: relative;
    text-align: center;
    z-index: var(--z-10);
}

.demo__title {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-black);
    line-height: var(--line-height-tight);
    letter-spacing: var(--letter-spacing-tight);
    color: var(--color-white);
    margin-bottom: var(--spacing-6);
}

@media (min-width: 768px) {
    .demo__title {
        font-size: var(--font-size-5xl);
    }
}

@media (min-width: 1024px) {
    .demo__title {
        font-size: var(--font-size-6xl);
    }
}

.demo__title-accent {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.demo__description {
    font-size: var(--font-size-lg);
    color: var(--color-gray-400);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: var(--line-height-relaxed);
}

/* ========================================================================
   CAPABILITIES SECTION
   ======================================================================== */

.capabilities {
    padding: var(--spacing-20) 0;
    background-color: var(--color-black);
}

@media (min-width: 768px) {
    .capabilities {
        padding: var(--spacing-24) 0;
    }
}

.capabilities__tabs {
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.capabilities__tab-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-8);
    padding: var(--spacing-2);
    background-color: var(--color-dark);
    border-radius: var(--radius-xl);
}

@media (min-width: 768px) {
    .capabilities__tab-list {
        gap: var(--spacing-3);
        padding: var(--spacing-3);
    }
}

.capabilities__tab {
    flex: 1;
    min-width: max-content;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-400);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

@media (min-width: 768px) {
    .capabilities__tab {
        padding: var(--spacing-4) var(--spacing-6);
    }
}

.capabilities__tab:hover {
    color: var(--color-white);
    background-color: rgba(255, 255, 255, 0.05);
}

.capabilities__tab--active {
    color: var(--color-white);
    background-color: var(--color-purple);
}

.capabilities__tab--active:hover {
    background-color: var(--color-purple-dark);
}

.capabilities__tab-icon {
    display: none;
}

@media (min-width: 640px) {
    .capabilities__tab-icon {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .capabilities__tab-icon svg {
        width: 18px;
        height: 18px;
    }
}

.capabilities__panels {
    background-color: var(--color-dark);
    border-radius: var(--radius-2xl);
    border: 1px solid rgba(255, 255, 255, 0.05);
    overflow: hidden;
}

.capabilities__panel {
    display: none;
    padding: var(--spacing-8);
}

@media (min-width: 768px) {
    .capabilities__panel {
        padding: var(--spacing-10);
    }
}

@media (min-width: 1024px) {
    .capabilities__panel {
        padding: var(--spacing-12);
    }
}

.capabilities__panel--active {
    display: block;
}

.capabilities__panel-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    margin-bottom: var(--spacing-4);
}

@media (min-width: 768px) {
    .capabilities__panel-title {
        font-size: var(--font-size-3xl);
    }
}

.capabilities__panel-description {
    font-size: var(--font-size-lg);
    color: var(--color-gray-400);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-8);
    max-width: 900px;
}

/* Language Grid */
.language-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-8);
}

@media (min-width: 768px) {
    .language-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .language-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.language-group__title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-purple);
    margin-bottom: var(--spacing-4);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wide);
}

.language-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.language-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
    padding: var(--spacing-3);
    background-color: rgba(255, 255, 255, 0.02);
    border-radius: var(--radius-md);
    transition: background-color var(--transition-base);
}

.language-item:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.language-item__name {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-white);
}

.language-item__variants {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
}

/* Voice Categories */
.voice-categories {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-8);
}

.voice-category {
    padding: var(--spacing-6);
    background-color: rgba(255, 255, 255, 0.02);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.voice-category__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-3);
}

.voice-category__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
}

.voice-category__count {
    font-size: var(--font-size-sm);
    color: var(--color-purple);
    font-weight: var(--font-weight-medium);
}

.voice-category__description {
    font-size: var(--font-size-base);
    color: var(--color-gray-400);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-4);
}

.voice-category__samples {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-3);
}

@media (min-width: 640px) {
    .voice-category__samples {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .voice-category__samples {
        grid-template-columns: repeat(4, 1fr);
    }
}

.voice-sample {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
    padding: var(--spacing-3);
    background-color: var(--color-darkest);
    border-radius: var(--radius-md);
}

.voice-sample__name {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-white);
}

.voice-sample__traits {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
}

/* Emotion Grid */
.emotion-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-8);
}

.emotion-group__title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-purple);
    margin-bottom: var(--spacing-4);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wide);
}

.emotion-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-4);
}

@media (min-width: 768px) {
    .emotion-cards {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1024px) {
    .emotion-cards {
        grid-template-columns: repeat(6, 1fr);
    }
}

.emotion-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-4);
    background-color: var(--color-darkest);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.emotion-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-sm);
}

.emotion-card__icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.emotion-card__icon svg {
    width: 32px;
    height: 32px;
}

.emotion-card__icon--happy svg { color: #FBBF24; }
.emotion-card__icon--sad svg { color: #60A5FA; }
.emotion-card__icon--angry svg { color: #EF4444; }
.emotion-card__icon--fearful svg { color: #A78BFA; }
.emotion-card__icon--surprised svg { color: #34D399; }
.emotion-card__icon--disgusted svg { color: #F97316; }

.emotion-card__name {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-white);
}

.emotion-card__description {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
    line-height: var(--line-height-normal);
}

.emotion-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-3);
}

@media (min-width: 640px) {
    .emotion-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .emotion-list {
        grid-template-columns: repeat(4, 1fr);
    }
}

.emotion-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
    padding: var(--spacing-3);
    background-color: var(--color-darkest);
    border-radius: var(--radius-md);
}

.emotion-item__name {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-white);
}

.emotion-item__description {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
}

.emotion-controls {
    margin-top: var(--spacing-8);
    padding: var(--spacing-6);
    background-color: rgba(79, 70, 229, 0.1);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(79, 70, 229, 0.2);
}

.emotion-controls__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    margin-bottom: var(--spacing-2);
}

.emotion-controls__description {
    font-size: var(--font-size-base);
    color: var(--color-gray-300);
    line-height: var(--line-height-relaxed);
}

/* API Features */
.api-features {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
}

@media (min-width: 768px) {
    .api-features {
        grid-template-columns: repeat(2, 1fr);
    }
}

.api-feature {
    padding: var(--spacing-6);
    background-color: var(--color-darkest);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.api-feature__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-3);
}

.api-feature__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
}

.api-feature__badge {
    padding: var(--spacing-1) var(--spacing-3);
    background-color: var(--color-purple);
    color: var(--color-white);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-md);
}

.api-feature__description {
    font-size: var(--font-size-base);
    color: var(--color-gray-400);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-4);
}

.api-feature__code {
    background-color: var(--color-charcoal);
    border-radius: var(--radius-lg);
    padding: var(--spacing-4);
    overflow-x: auto;
}

.api-feature__code pre {
    margin: 0;
}

.api-feature__code code {
    font-family: var(--font-family-mono);
    font-size: var(--font-size-sm);
    color: var(--color-gray-300);
    white-space: pre;
}

.api-feature__specs {
    display: flex;
    gap: var(--spacing-6);
}

.api-spec {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
}

.api-spec__label {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
}

.api-spec__value {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-white);
}

.sdk-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2);
}

.sdk-item {
    padding: var(--spacing-2) var(--spacing-3);
    background-color: var(--color-charcoal);
    color: var(--color-gray-300);
    font-size: var(--font-size-sm);
    border-radius: var(--radius-md);
}

.api-infrastructure {
    margin-top: var(--spacing-8);
    padding: var(--spacing-6);
    background-color: rgba(79, 70, 229, 0.1);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(79, 70, 229, 0.2);
}

.api-infrastructure__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    margin-bottom: var(--spacing-6);
    text-align: center;
}

.api-infrastructure__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-4);
}

@media (min-width: 640px) {
    .api-infrastructure__grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1024px) {
    .api-infrastructure__grid {
        grid-template-columns: repeat(6, 1fr);
    }
}

.infra-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-1);
    text-align: center;
}

.infra-item__value {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
}

.infra-item__label {
    font-size: var(--font-size-xs);
    color: var(--color-gray-400);
}

/* ========================================================================
   STUDIO SECTION
   ======================================================================== */

.studio {
    padding: var(--spacing-20) 0;
    background-color: var(--color-gray-50);
}

@media (min-width: 768px) {
    .studio {
        padding: var(--spacing-24) 0;
    }
}

.studio__showcase {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-8);
    align-items: start;
}

@media (min-width: 1024px) {
    .studio__showcase {
        grid-template-columns: 1.2fr 1fr;
        gap: var(--spacing-12);
    }
}

.studio__visual {
    background-color: var(--color-charcoal);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
}

.studio__interface {
    width: 100%;
    height: auto;
}

.cursor-blink {
    animation: cursorBlink 1s step-end infinite;
}

@keyframes cursorBlink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.studio__content {
    padding: var(--spacing-4) 0;
}

@media (min-width: 1024px) {
    .studio__content {
        padding: var(--spacing-8) 0;
    }
}

.studio__title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-charcoal);
    margin-bottom: var(--spacing-4);
}

@media (min-width: 768px) {
    .studio__title {
        font-size: var(--font-size-4xl);
    }
}

.studio__description {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-8);
}

.studio__features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
}

.studio__feature {
    display: flex;
    gap: var(--spacing-4);
}

.studio__feature-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-indigo);
    border-radius: var(--radius-md);
}

.studio__feature-icon svg {
    width: 20px;
    height: 20px;
    color: var(--color-white);
}

.studio__feature-content h4 {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-charcoal);
    margin-bottom: var(--spacing-1);
}

.studio__feature-content p {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    line-height: var(--line-height-relaxed);
}

/* ========================================================================
   USE CASES SECTION
   ======================================================================== */

.use-cases {
    padding: var(--spacing-20) 0;
    background-color: var(--color-black);
}

@media (min-width: 768px) {
    .use-cases {
        padding: var(--spacing-24) 0;
    }
}

.use-cases__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
}

@media (min-width: 768px) {
    .use-cases__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-8);
    }
}

@media (min-width: 1280px) {
    .use-cases__grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.use-case-card {
    background-color: var(--color-dark);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-smooth);
}

.use-case-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow-sm);
    border-color: rgba(124, 58, 237, 0.3);
}

.use-case-card__visual {
    aspect-ratio: 3 / 2;
    background-color: var(--color-darkest);
    display: flex;
    align-items: center;
    justify-content: center;
}

.use-case-card__visual svg {
    width: 100%;
    height: 100%;
}

.use-case-card__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    padding: var(--spacing-6) var(--spacing-6) var(--spacing-3);
}

.use-case-card__description {
    font-size: var(--font-size-sm);
    color: var(--color-gray-400);
    line-height: var(--line-height-relaxed);
    padding: 0 var(--spacing-6) var(--spacing-6);
}

/* ========================================================================
   CONTACT SECTION
   ======================================================================== */

.contact {
    padding: var(--spacing-20) 0;
    background-color: var(--color-charcoal);
}

@media (min-width: 768px) {
    .contact {
        padding: var(--spacing-24) 0;
    }
}

.contact__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-12);
}

@media (min-width: 1024px) {
    .contact__grid {
        grid-template-columns: 1fr 1.2fr;
        gap: var(--spacing-16);
    }
}

.contact__info .section-title {
    text-align: left;
}

.contact__description {
    font-size: var(--font-size-lg);
    color: var(--color-gray-400);
    line-height: var(--line-height-relaxed);
    margin-top: var(--spacing-6);
    margin-bottom: var(--spacing-10);
}

.contact__details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
}

.contact__detail-title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-purple);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wide);
    margin-bottom: var(--spacing-2);
}

.contact__detail-value {
    font-size: var(--font-size-base);
    color: var(--color-white);
    line-height: var(--line-height-relaxed);
    transition: color var(--transition-base);
}

a.contact__detail-value:hover {
    color: var(--color-purple);
}

.contact__form-container {
    background-color: var(--color-dark);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-8);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

@media (min-width: 768px) {
    .contact__form-container {
        padding: var(--spacing-10);
    }
}

.contact__form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.form-group--checkbox {
    flex-direction: row;
    align-items: flex-start;
    gap: var(--spacing-3);
}

.form-label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-300);
}

.form-label--checkbox {
    font-size: var(--font-size-sm);
    color: var(--color-gray-400);
    line-height: var(--line-height-relaxed);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--spacing-4);
    background-color: var(--color-darkest);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--color-white);
    font-size: var(--font-size-base);
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--color-gray-500);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-purple);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.2);
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23737373' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--spacing-4) center;
    padding-right: var(--spacing-12);
}

.form-checkbox {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    margin-top: 2px;
    appearance: none;
    background-color: var(--color-darkest);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-base);
}

.form-checkbox:checked {
    background-color: var(--color-purple);
    border-color: var(--color-purple);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
}

.form-error {
    font-size: var(--font-size-xs);
    color: var(--color-error);
}

.form-note {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
    text-align: center;
}

/* ========================================================================
   FOOTER
   ======================================================================== */

.footer {
    padding: var(--spacing-16) 0 var(--spacing-8);
    background-color: var(--color-black);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer__main {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-10);
    margin-bottom: var(--spacing-12);
}

@media (min-width: 768px) {
    .footer__main {
        grid-template-columns: 1fr 2fr;
        gap: var(--spacing-16);
    }
}

.footer__logo {
    display: inline-block;
    margin-bottom: var(--spacing-4);
}

.footer__logo .logo-icon {
    height: 32px;
}

.footer__tagline {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    line-height: var(--line-height-relaxed);
    max-width: 300px;
}

.footer__nav {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-8);
}

@media (min-width: 640px) {
    .footer__nav {
        grid-template-columns: repeat(3, 1fr);
    }
}

.footer__nav-title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-white);
    margin-bottom: var(--spacing-4);
}

.footer__nav-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.footer__nav-list a {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    transition: color var(--transition-base);
}

.footer__nav-list a:hover {
    color: var(--color-white);
}

.footer__bottom {
    padding-top: var(--spacing-8);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
}

.footer__copyright {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

/* ========================================================================
   ANIMATIONS & TRANSITIONS
   ======================================================================== */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Smooth scroll offset for fixed header */
html {
    scroll-padding-top: calc(var(--header-height) + var(--spacing-8));
}

@media (max-width: 767px) {
    html {
        scroll-padding-top: calc(var(--header-height-mobile) + var(--spacing-6));
    }
}

/* Print styles */
@media print {
    .header,
    .hero__background,
    .hero__visual,
    .statement__background,
    .demo__visual,
    .button {
        display: none !important;
    }

    body {
        background: white;
        color: black;
    }

    .hero,
    .technology,
    .solutions,
    .capabilities,
    .studio,
    .use-cases,
    .contact {
        padding: 2rem 0;
    }
}