/* ==========================================================================
   Aiqoris - Premium CSS Styles
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Variables
   -------------------------------------------------------------------------- */
:root {
    /* Colors */
    --primary: #1a365d;
    --primary-light: #2c5282;
    --primary-dark: #0f2442;
    --secondary: #38b2ac;
    --secondary-light: #4fd1c5;
    --secondary-dark: #2c8a85;
    --accent: #ed8936;
    --accent-light: #f6ad55;
    --accent-dark: #dd6b20;
    --dark: #0f172a;
    --dark-lighter: #1e293b;
    --light: #f8fafc;
    --light-darker: #e2e8f0;
    --gray: #64748b;
    --gray-light: #94a3b8;
    --gray-dark: #475569;
    --white: #ffffff;
    --black: #000000;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    --gradient-hero: linear-gradient(135deg, var(--dark) 0%, var(--primary-dark) 50%, var(--dark) 100%);
    --gradient-accent: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
    --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-2xl: 2rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 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 40px rgba(56, 178, 172, 0.3);
    --shadow-glow-accent: 0 0 40px rgba(237, 137, 54, 0.3);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;

    /* Z-index */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-tooltip: 600;
}

/* Dark mode */
@media (prefers-color-scheme: dark) {
    :root {
        --light: #1e293b;
        --light-darker: #334155;
        --dark: #0f172a;
        --white: #f8fafc;
    }
}

/* --------------------------------------------------------------------------
   Reset & Base
   -------------------------------------------------------------------------- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--dark);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

img, picture, video, canvas, svg {
    display: block;
    max-width: 100%;
    height: auto;
}

input, button, textarea, select {
    font: inherit;
}

a {
    color: inherit;
    text-decoration: none;
}

ul, ol {
    list-style: none;
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--dark);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

p {
    margin-bottom: var(--space-4);
}

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

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* --------------------------------------------------------------------------
   Layout & Grid
   -------------------------------------------------------------------------- */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.container-sm { max-width: 768px; }
.container-lg { max-width: 1440px; }

.section {
    padding: var(--space-24) 0;
}

.section-sm {
    padding: var(--space-16) 0;
}

.section-lg {
    padding: var(--space-24) 0;
}

.grid {
    display: grid;
    gap: var(--space-8);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.flex {
    display: flex;
}

.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.flex-col {
    flex-direction: column;
}

.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-align: center;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
    box-shadow: var(--shadow-glow);
}

.btn-accent {
    background: var(--gradient-accent);
    color: var(--white);
    box-shadow: var(--shadow-lg);
}

.btn-accent:hover {
    box-shadow: var(--shadow-glow-accent);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.2);
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--font-size-lg);
}

.btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
}

/* Gradient border button */
.btn-gradient-border {
    position: relative;
    background: var(--dark);
    color: var(--white);
    border: none;
    z-index: 1;
}

.btn-gradient-border::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: var(--gradient-primary);
    border-radius: inherit;
    z-index: -1;
}

.btn-gradient-border::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--dark);
    border-radius: calc(var(--radius-lg) - 2px);
    z-index: -1;
}

.btn-gradient-border:hover::after {
    background: var(--dark-lighter);
}

/* --------------------------------------------------------------------------
   Cards
   -------------------------------------------------------------------------- */
.card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.card-glass {
    background: var(--gradient-glass);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.card-dark {
    background: var(--dark-lighter);
    color: var(--white);
}

.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(--space-6);
}

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

.card h3 {
    margin-bottom: var(--space-4);
}

.card p {
    color: var(--gray);
    margin-bottom: 0;
}

.card-dark p {
    color: var(--gray-light);
}

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    padding: var(--space-4) 0;
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--space-3) 0;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-brand {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: var(--white);
}

.navbar-brand span {
    color: var(--secondary);
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.navbar-links {
    display: flex;
    gap: var(--space-6);
}

.navbar-link {
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.navbar-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary);
    transition: width var(--transition-base);
}

.navbar-link:hover {
    color: var(--white);
}

.navbar-link:hover::after {
    width: 100%;
}

.navbar-actions {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.lang-switch {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    color: var(--white);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.lang-switch:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Mobile menu */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-2);
    background: none;
    border: none;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--white);
    transition: all var(--transition-fast);
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--gradient-hero);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(56, 178, 172, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(237, 137, 54, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(26, 54, 93, 0.3) 0%, transparent 70%);
    animation: heroGradient 15s ease infinite;
}

@keyframes heroGradient {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.8;
    }
}

/* Particles */
.particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(56, 178, 172, 0.6);
    border-radius: 50%;
    animation: float 20s infinite;
}

.particle:nth-child(2) { left: 10%; animation-delay: -2s; animation-duration: 18s; }
.particle:nth-child(3) { left: 20%; animation-delay: -4s; animation-duration: 22s; }
.particle:nth-child(4) { left: 30%; animation-delay: -6s; animation-duration: 16s; }
.particle:nth-child(5) { left: 40%; animation-delay: -8s; animation-duration: 24s; }
.particle:nth-child(6) { left: 50%; animation-delay: -10s; animation-duration: 19s; }
.particle:nth-child(7) { left: 60%; animation-delay: -12s; animation-duration: 21s; }
.particle:nth-child(8) { left: 70%; animation-delay: -14s; animation-duration: 17s; }
.particle:nth-child(9) { left: 80%; animation-delay: -16s; animation-duration: 23s; }
.particle:nth-child(10) { left: 90%; animation-delay: -18s; animation-duration: 20s; }

@keyframes float {
    0% {
        transform: translateY(100vh) scale(0);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100vh) scale(1);
        opacity: 0;
    }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--white);
    padding-top: var(--space-20);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: rgba(56, 178, 172, 0.2);
    border: 1px solid rgba(56, 178, 172, 0.3);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--secondary-light);
    margin-bottom: var(--space-6);
}

.hero-badge::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--secondary);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    margin-bottom: var(--space-6);
    color: var(--white);
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: rgba(255, 255, 255, 0.8);
    max-width: 700px;
    margin: 0 auto var(--space-10);
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--space-16);
    margin-top: var(--space-16);
    padding-top: var(--space-16);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-stat {
    text-align: center;
}

.hero-stat-value {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--secondary);
    display: block;
}

.hero-stat-label {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.6);
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-10);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--font-size-sm);
    animation: bounce 2s infinite;
}

.scroll-indicator svg {
    width: 24px;
    height: 24px;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* --------------------------------------------------------------------------
   Section Headers
   -------------------------------------------------------------------------- */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-16);
}

.section-badge {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    background: rgba(56, 178, 172, 0.1);
    color: var(--secondary);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-4);
}

.section-header h2 {
    margin-bottom: var(--space-4);
}

.section-header p {
    color: var(--gray);
    font-size: var(--font-size-lg);
    margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   Problems & Solutions Section
   -------------------------------------------------------------------------- */
.problems-solutions {
    background: var(--light);
}

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

.ps-column h3 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--space-8);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.ps-column h3 svg {
    width: 28px;
    height: 28px;
}

.problems h3 {
    color: #dc2626;
}

.solutions h3 {
    color: var(--secondary);
}

.ps-item {
    display: flex;
    gap: var(--space-4);
    padding: var(--space-6);
    background: var(--white);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.ps-item:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-lg);
}

.solutions .ps-item:hover {
    transform: translateX(-8px);
}

.ps-icon {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
}

.problems .ps-icon {
    background: rgba(220, 38, 38, 0.1);
    color: #dc2626;
}

.solutions .ps-icon {
    background: rgba(56, 178, 172, 0.1);
    color: var(--secondary);
}

.ps-icon svg {
    width: 24px;
    height: 24px;
}

.ps-content h4 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-2);
}

.ps-content p {
    font-size: var(--font-size-sm);
    color: var(--gray);
    margin-bottom: 0;
}

.ps-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: var(--space-20);
}

.ps-arrow svg {
    width: 48px;
    height: 48px;
    color: var(--secondary);
    animation: arrowPulse 2s infinite;
}

@keyframes arrowPulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.7; }
}

/* --------------------------------------------------------------------------
   Features Section
   -------------------------------------------------------------------------- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.feature-card {
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-number {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--light-darker);
    line-height: 1;
}

/* --------------------------------------------------------------------------
   Grant/Dotace Section
   -------------------------------------------------------------------------- */
.grant-section {
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
}

.grant-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(237, 137, 54, 0.1) 0%, transparent 50%);
    animation: rotate 30s linear infinite;
}

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

.grant-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--white);
}

.grant-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-8);
    background: rgba(237, 137, 54, 0.2);
    border: 2px solid var(--accent);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-8);
}

.grant-badge svg {
    width: 32px;
    height: 32px;
    color: var(--accent);
}

.grant-badge span {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--accent);
}

.grant-content h2 {
    color: var(--white);
    margin-bottom: var(--space-4);
}

.grant-content p {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.8);
    max-width: 600px;
    margin: 0 auto;
}

/* --------------------------------------------------------------------------
   How It Works / Timeline
   -------------------------------------------------------------------------- */
.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
}

.timeline-item {
    display: flex;
    gap: var(--space-8);
    margin-bottom: var(--space-12);
    position: relative;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-item:nth-child(even) .timeline-content {
    text-align: right;
}

.timeline-marker {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 700;
    font-size: var(--font-size-lg);
    box-shadow: var(--shadow-lg);
    z-index: 1;
}

.timeline-content {
    flex: 1;
    padding: var(--space-6);
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    max-width: calc(50% - var(--space-12));
}

.timeline-content h4 {
    margin-bottom: var(--space-2);
    color: var(--primary);
}

.timeline-content p {
    color: var(--gray);
    margin-bottom: 0;
    font-size: var(--font-size-sm);
}

/* --------------------------------------------------------------------------
   Target Audience / Personas
   -------------------------------------------------------------------------- */
.personas-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.persona-card {
    text-align: center;
    padding: var(--space-10);
}

.persona-avatar {
    width: 120px;
    height: 120px;
    margin: 0 auto var(--space-6);
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.persona-avatar svg {
    width: 56px;
    height: 56px;
    color: var(--white);
}

.persona-card h3 {
    margin-bottom: var(--space-2);
}

.persona-role {
    color: var(--secondary);
    font-weight: 600;
    margin-bottom: var(--space-4);
}

.persona-card p {
    color: var(--gray);
}

.persona-benefits {
    margin-top: var(--space-6);
    text-align: left;
}

.persona-benefits li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
    margin-bottom: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--gray-dark);
}

.persona-benefits svg {
    width: 18px;
    height: 18px;
    color: var(--secondary);
    flex-shrink: 0;
    margin-top: 2px;
}

/* --------------------------------------------------------------------------
   Technical Section
   -------------------------------------------------------------------------- */
.tech-section {
    background: var(--dark);
    color: var(--white);
}

.tech-section .section-header p {
    color: var(--gray-light);
}

.tech-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
    align-items: center;
}

.architecture-diagram {
    background: var(--dark-lighter);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.arch-layers {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.arch-layer {
    padding: var(--space-4) var(--space-6);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--secondary);
    transition: all var(--transition-base);
}

.arch-layer:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(8px);
}

.arch-layer h5 {
    color: var(--secondary);
    margin-bottom: var(--space-1);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.arch-layer p {
    color: var(--gray-light);
    margin-bottom: 0;
    font-size: var(--font-size-sm);
}

.api-example {
    background: var(--dark-lighter);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.api-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-6);
    background: rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.api-header span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.api-header span:nth-child(1) { background: #ff5f57; }
.api-header span:nth-child(2) { background: #febc2e; }
.api-header span:nth-child(3) { background: #28c840; }

.api-code {
    padding: var(--space-6);
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: var(--font-size-sm);
    line-height: 1.8;
    overflow-x: auto;
}

.api-code .comment { color: var(--gray); }
.api-code .keyword { color: #c792ea; }
.api-code .string { color: #c3e88d; }
.api-code .property { color: #82aaff; }
.api-code .value { color: #f78c6c; }

/* --------------------------------------------------------------------------
   Case Studies
   -------------------------------------------------------------------------- */
.case-studies-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.case-study-card {
    position: relative;
    overflow: hidden;
}

.case-study-image {
    height: 200px;
    background: var(--gradient-primary);
    margin: calc(var(--space-8) * -1);
    margin-bottom: var(--space-6);
    display: flex;
    align-items: center;
    justify-content: center;
}

.case-study-image svg {
    width: 64px;
    height: 64px;
    color: rgba(255, 255, 255, 0.3);
}

.case-study-industry {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background: rgba(56, 178, 172, 0.1);
    color: var(--secondary);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: var(--space-3);
}

.case-study-stats {
    display: flex;
    gap: var(--space-6);
    margin-top: var(--space-6);
    padding-top: var(--space-6);
    border-top: 1px solid var(--light-darker);
}

.case-study-stat {
    text-align: center;
}

.case-study-stat-value {
    display: block;
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: var(--secondary);
}

.case-study-stat-label {
    font-size: var(--font-size-xs);
    color: var(--gray);
}

/* --------------------------------------------------------------------------
   FAQ Section
   -------------------------------------------------------------------------- */
.faq-section {
    background: var(--light);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-6);
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--dark);
    transition: all var(--transition-fast);
}

.faq-question:hover {
    color: var(--primary);
}

.faq-icon {
    width: 24px;
    height: 24px;
    color: var(--secondary);
    transition: transform var(--transition-base);
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
}

.faq-answer-content {
    padding: 0 var(--space-6) var(--space-6);
    color: var(--gray);
    line-height: 1.8;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

/* --------------------------------------------------------------------------
   CTA Section
   -------------------------------------------------------------------------- */
.cta-section {
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
}

.cta-section .particles {
    opacity: 0.5;
}

.cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--white);
}

.cta-content h2 {
    color: var(--white);
    margin-bottom: var(--space-4);
}

.cta-content > p {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--space-10);
}

/* --------------------------------------------------------------------------
   Contact Form
   -------------------------------------------------------------------------- */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-2xl);
    padding: var(--space-10);
}

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

.form-group {
    margin-bottom: var(--space-6);
}

.form-group.full-width {
    grid-column: span 2;
}

.form-label {
    display: block;
    margin-bottom: var(--space-2);
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--font-size-sm);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--space-4);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    color: var(--white);
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--secondary);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 0 0 3px rgba(56, 178, 172, 0.2);
}

.form-textarea {
    min-height: 150px;
    resize: vertical;
}

.form-submit {
    width: 100%;
    margin-top: var(--space-4);
}

.form-message {
    margin-top: var(--space-4);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    text-align: center;
    display: none;
}

.form-message.success {
    background: rgba(40, 167, 69, 0.2);
    border: 1px solid rgba(40, 167, 69, 0.3);
    color: #4ade80;
    display: block;
}

.form-message.error {
    background: rgba(220, 53, 69, 0.2);
    border: 1px solid rgba(220, 53, 69, 0.3);
    color: #f87171;
    display: block;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
    background: var(--dark);
    color: var(--white);
    padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-12);
    margin-bottom: var(--space-12);
}

.footer-brand {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    margin-bottom: var(--space-4);
}

.footer-brand span {
    color: var(--secondary);
}

.footer-description {
    color: var(--gray-light);
    margin-bottom: var(--space-6);
    max-width: 300px;
}

.footer-social {
    display: flex;
    gap: var(--space-3);
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--white);
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    background: var(--secondary);
    transform: translateY(-3px);
}

.footer-social svg {
    width: 20px;
    height: 20px;
}

.footer-column h4 {
    color: var(--white);
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-6);
}

.footer-links li {
    margin-bottom: var(--space-3);
}

.footer-links a {
    color: var(--gray-light);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--secondary);
}

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
    color: var(--gray-light);
}

.footer-contact-item svg {
    width: 20px;
    height: 20px;
    color: var(--secondary);
    flex-shrink: 0;
    margin-top: 2px;
}

.footer-bottom {
    padding-top: var(--space-8);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-4);
}

.footer-copyright {
    color: var(--gray);
    font-size: var(--font-size-sm);
}

.footer-legal {
    display: flex;
    gap: var(--space-6);
}

.footer-legal a {
    color: var(--gray);
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

.footer-legal a:hover {
    color: var(--secondary);
}

/* --------------------------------------------------------------------------
   Scroll Animations
   -------------------------------------------------------------------------- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

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

.reveal-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

.reveal-left.active {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

.reveal-right.active {
    opacity: 1;
    transform: translateX(0);
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.9);
    transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

.reveal-scale.active {
    opacity: 1;
    transform: scale(1);
}

/* Stagger delays for grid items */
.reveal-stagger > *:nth-child(1) { transition-delay: 0.1s; }
.reveal-stagger > *:nth-child(2) { transition-delay: 0.2s; }
.reveal-stagger > *:nth-child(3) { transition-delay: 0.3s; }
.reveal-stagger > *:nth-child(4) { transition-delay: 0.4s; }
.reveal-stagger > *:nth-child(5) { transition-delay: 0.5s; }
.reveal-stagger > *:nth-child(6) { transition-delay: 0.6s; }

/* --------------------------------------------------------------------------
   Responsive Design
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
    .grid-3, .features-grid, .personas-grid, .case-studies-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .tech-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }

    .ps-grid {
        grid-template-columns: 1fr;
    }

    .ps-arrow {
        padding: var(--space-8) 0;
        transform: rotate(90deg);
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-5xl: 2.5rem;
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.5rem;
    }

    .section {
        padding: var(--space-16) 0;
    }

    .container {
        padding: 0 var(--space-4);
    }

    /* Mobile Navigation */
    .menu-toggle {
        display: flex;
    }

    .navbar-menu {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--dark);
        flex-direction: column;
        justify-content: center;
        gap: var(--space-8);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
    }

    .navbar-menu.active {
        opacity: 1;
        visibility: visible;
    }

    .navbar-links {
        flex-direction: column;
        align-items: center;
        gap: var(--space-6);
    }

    .navbar-link {
        font-size: var(--font-size-2xl);
    }

    .navbar-actions {
        flex-direction: column;
    }

    /* Grids */
    .grid-2, .grid-3, .grid-4, .features-grid, .personas-grid, .case-studies-grid {
        grid-template-columns: 1fr;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .form-group.full-width {
        grid-column: span 1;
    }

    /* Hero */
    .hero-stats {
        flex-direction: column;
        gap: var(--space-8);
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    /* Timeline */
    .timeline::before {
        left: 24px;
    }

    .timeline-item,
    .timeline-item:nth-child(even) {
        flex-direction: column;
        padding-left: calc(24px + var(--space-12));
    }

    .timeline-item:nth-child(even) .timeline-content {
        text-align: left;
    }

    .timeline-marker {
        left: 24px;
        width: 40px;
        height: 40px;
        font-size: var(--font-size-base);
    }

    .timeline-content {
        max-width: 100%;
    }

    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .btn-lg {
        padding: var(--space-3) var(--space-6);
        font-size: var(--font-size-base);
    }

    .contact-form {
        padding: var(--space-6);
    }

    .case-study-stats {
        flex-direction: column;
        gap: var(--space-4);
    }
}

/* --------------------------------------------------------------------------
   Print Styles
   -------------------------------------------------------------------------- */
@media print {
    .navbar,
    .scroll-indicator,
    .particles,
    .btn {
        display: none !important;
    }

    .hero {
        min-height: auto;
        padding: var(--space-8) 0;
    }

    .section {
        padding: var(--space-8) 0;
    }

    body {
        color: #000;
        background: #fff;
    }
}