:root {
    /* Color Palette — Light Theme (Kurumsal Kimlik Kılavuzu) */
    --primary: #1B4DFF;
    --primary-dark: #0F2E9A;
    --primary-soft: #E8EEFF;
    --accent: #F37021;
    --accent-light: #FF8C42;
    --surface-dark: #F8F9FC;
    --surface: #FFFFFF;
    --surface-light: #EEF1F8;
    --text-primary: #1A1A2E;
    --text-secondary: #5A6178;
    --text-muted: #8E95A9;
    --success: #10B981;
    --danger: #EF4444;
    
    /* Gradients */
    --grad-main: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    --grad-accent: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
    --grad-hero: linear-gradient(180deg, #F0F4FF 0%, #FFFFFF 100%);
    
    /* Spacing & Sizing */
    --container-max: 1200px;
    --section-pad: 100px 0;
    --section-pad-mobile: 60px 0;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(27, 77, 255, 0.06);
    --shadow-md: 0 8px 30px rgba(27, 77, 255, 0.08);
    --shadow-lg: 0 20px 60px rgba(27, 77, 255, 0.1);
    --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.06);

    /* Border Radius */
    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 32px;
    --radius-xl: 40px;
}

/* Dark Mode Variables (Supports both system preference and manual toggle) */
:root[data-theme="dark"] {
    --surface-dark: #07070C;
    --surface: #13131F;
    --surface-light: #1A1A2E;
    --text-primary: #FFFFFF;
    --text-secondary: #8E95A9;
    --text-muted: #64748B;
    --primary-soft: rgba(27, 77, 255, 0.15);
    
    --grad-hero: linear-gradient(180deg, #0B0E14 0%, #07070C 100%);
    --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
}

/* Fallback for system preference if no manual choice is made */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --surface-dark: #07070C;
        --surface: #13131F;
        --surface-light: #1A1A2E;
        --text-primary: #FFFFFF;
        --text-secondary: #8E95A9;
        --text-muted: #64748B;
        --primary-soft: rgba(27, 77, 255, 0.15);
        
        --grad-hero: linear-gradient(180deg, #0B0E14 0%, #07070C 100%);
        --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.3);
        --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
        --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
    }
}

/* Component Overrides for Dark Mode */
[data-theme="dark"] .glass {
    background: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 255, 255, 0.05);
}
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .glass {
        background: rgba(255, 255, 255, 0.03);
        border-color: rgba(255, 255, 255, 0.05);
    }
}

[data-theme="dark"] .form-control {
    background: rgba(255, 255, 255, 0.02);
    border-color: rgba(255, 255, 255, 0.1);
    color: #fff;
}
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .form-control {
        background: rgba(255, 255, 255, 0.02);
        border-color: rgba(255, 255, 255, 0.1);
        color: #fff;
    }
}

[data-theme="dark"] .form-control:focus {
    background: rgba(255, 255, 255, 0.05);
}
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .form-control:focus {
        background: rgba(255, 255, 255, 0.05);
    }
}

[data-theme="dark"] nav.scrolled {
    background: rgba(7, 7, 12, 0.85);
    border-bottom-color: rgba(255, 255, 255, 0.05);
}
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) nav.scrolled {
        background: rgba(7, 7, 12, 0.85);
        border-bottom-color: rgba(255, 255, 255, 0.05);
    }
}

[data-theme="dark"] .vs-divider {
    background: #13131F;
    border-color: rgba(255, 255, 255, 0.1);
    color: #fff;
}
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .vs-divider {
        background: #13131F;
        border-color: rgba(255, 255, 255, 0.1);
        color: #fff;
    }
}

[data-theme="dark"] .trend-card {
    background: rgba(25, 25, 45, 0.4);
}
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .trend-card {
        background: rgba(25, 25, 45, 0.4);
    }
}

[data-theme="dark"] footer {
    background: #050508;
    border-top: 1px solid rgba(255, 255, 255, 0.03);
}
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) footer {
        background: #050508;
        border-top: 1px solid rgba(255, 255, 255, 0.03);
    }
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--surface-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 800;
    line-height: 1.2;
    color: var(--text-primary);
}

a {
    text-decoration: none;
    transition: all 0.3s ease;
}

/* Utilities */
.hidden, .hp-field {
    display: none !important;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 20px;
}

.glass {
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(27, 77, 255, 0.08);
    box-shadow: var(--shadow-card);
}

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

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

.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 50px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: center;
    border: none;
}

.btn-primary {
    background: var(--grad-accent);
    color: #fff;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(243, 112, 33, 0.3);
}

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

.btn-ghost:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
    transform: translateY(-2px);
}

/* ===================== */
/* Navbar                */
/* ===================== */
nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: all 0.3s ease;
    background: transparent;
}

nav.scrolled {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    padding: 15px 0;
    border-bottom: 1px solid rgba(27, 77, 255, 0.06);
    box-shadow: var(--shadow-sm);
}

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

.logo img {
    height: 40px;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.95rem;
}

.nav-links a:hover {
    color: var(--primary);
}

.nav-actions {
    display: flex;
    gap: 15px;
    align-items: center;
}

/* Theme Toggle Button */
.theme-toggle {
    background: var(--surface-light);
    border: 1px solid rgba(27, 77, 255, 0.1);
    color: var(--primary);
    width: 42px;
    height: 42px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 0;
    position: relative;
    overflow: hidden;
}

.theme-toggle:hover {
    background: var(--primary);
    color: #fff;
    transform: translateY(-2px) rotate(8deg);
    box-shadow: 0 5px 15px rgba(27, 77, 255, 0.2);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.theme-toggle .sun-icon {
    position: absolute;
    transform: translateY(40px);
    opacity: 0;
}

.theme-toggle .moon-icon {
    transform: translateY(0);
    opacity: 1;
}

/* Dark mode icon states */
[data-theme="dark"] .theme-toggle .sun-icon {
    transform: translateY(0);
    opacity: 1;
}

[data-theme="dark"] .theme-toggle .moon-icon {
    transform: translateY(-40px);
    opacity: 0;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .theme-toggle .sun-icon {
        transform: translateY(0);
        opacity: 1;
    }
    
    :root:not([data-theme="light"]) .theme-toggle .moon-icon {
        transform: translateY(-40px);
        opacity: 0;
    }
}

/* ===================== */
/* Hero Section          */
/* ===================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    padding-top: 80px;
    z-index: 1;
    background: var(--grad-hero);
}

.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center bottom, rgba(27, 77, 255, 0.06) 0%, transparent 60%);
    z-index: -1;
    pointer-events: none;
}

#bg-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-content h1 {
    font-size: 4.5rem;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto 40px;
}

.hero-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
}

/* ===================== */
/* Stats                 */
/* ===================== */
.stats {
    padding: 40px 0;
    margin-top: -50px;
    position: relative;
    z-index: 10;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    border-radius: var(--radius-lg);
    padding: 10px;
}

.stat-card {
    padding: 30px;
    border-radius: var(--radius-md);
    text-align: center;
    background: var(--surface);
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.stat-card h3 {
    font-size: 2.5rem;
    margin-bottom: 5px;
    font-family: 'Montserrat', sans-serif;
    color: var(--primary);
}

.stat-card p {
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
}

/* ===================== */
/* Feature Sections      */
/* ===================== */
.feature {
    padding: var(--section-pad);
    background: var(--surface);
}

.feature.alt {
    background: var(--surface-dark);
}

.feature-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.feature.alt .feature-inner {
    direction: rtl;
}

.feature.alt .feature-content {
    direction: ltr;
}

.feature-content h2 {
    font-size: 2.8rem;
    margin-bottom: 25px;
    color: var(--text-primary);
}

.feature-content p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
    line-height: 1.8;
}

.feature-image {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(27, 77, 255, 0.08);
}

.feature-image img {
    width: 100%;
    display: block;
    transition: 0.5s;
}

.feature-image:hover img {
    transform: scale(1.05);
}

/* ===================== */
/* Grid Section (Bento)  */
/* ===================== */
.grid-section {
    padding: var(--section-pad);
    background: var(--surface-dark);
    position: relative;
}

.section-head {
    text-align: center;
    margin-bottom: 80px;
}

.section-head h2 {
    font-size: 3.2rem;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}

.section-head p {
    color: var(--text-secondary);
    font-size: 1.15rem;
    max-width: 600px;
    margin: 0 auto;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: minmax(280px, auto);
    gap: 25px;
}

.feature-card {
    position: relative;
    padding: 45px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
    background: var(--surface);
    border: 1px solid rgba(27, 77, 255, 0.06);
    box-shadow: var(--shadow-card);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    --mouse-x: 50%;
    --mouse-y: 50%;
}

/* Bento Spans */
.feature-card.span-2 { grid-column: span 2; }
.feature-card.span-3 { grid-column: span 3; }

/* Spotlight Effect */
.feature-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(
        600px circle at var(--mouse-x) var(--mouse-y),
        rgba(27, 77, 255, 0.04),
        transparent 40%
    );
    z-index: 1;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.5s;
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-card:hover {
    transform: translateY(-5px) scale(1.01);
    border-color: rgba(27, 77, 255, 0.15);
    box-shadow: var(--shadow-lg);
}

.feature-card .icon {
    width: 60px;
    height: 60px;
    background: var(--primary-soft);
    border-radius: 16px;
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 2;
    transition: 0.5s;
    color: var(--primary);
    border: 1px solid rgba(27, 77, 255, 0.1);
}

.feature-card:hover .icon {
    transform: scale(1.1) rotate(5deg);
    background: var(--grad-accent);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 10px 20px rgba(243, 112, 33, 0.3);
}

.feature-card h3 {
    margin-bottom: 12px;
    font-size: 1.4rem;
    position: relative;
    z-index: 2;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.7;
    position: relative;
    z-index: 2;
}

.feature-card .card-bg-icon {
    position: absolute;
    top: -20px;
    right: -20px;
    font-size: 10rem;
    opacity: 0.04;
    z-index: 0;
    transition: 0.5s;
}

.feature-card:hover .card-bg-icon {
    transform: scale(1.2) rotate(-10deg);
    opacity: 0.07;
}

/* ===================== */
/* CTA Section           */
/* ===================== */
.cta-section {
    padding: var(--section-pad);
    background: var(--surface);
    position: relative;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: linear-gradient(180deg, var(--surface-dark), var(--surface));
    pointer-events: none;
}

.trend-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    margin-top: 50px;
}

.trend-card {
    background: var(--surface);
    border: 1px solid rgba(27, 77, 255, 0.08);
    border-radius: var(--radius-md);
    padding: 30px;
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    box-shadow: var(--shadow-card);
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.trend-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.trend-card .trend-category {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--primary);
    background: var(--primary-soft);
    padding: 6px 14px;
    border-radius: 50px;
    width: fit-content;
}

.trend-card .trend-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.4;
}

.trend-card .trend-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
    padding-top: 15px;
    border-top: 1px solid rgba(27, 77, 255, 0.06);
}

.trend-card .trend-xp {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--accent);
    display: flex;
    align-items: center;
    gap: 5px;
}

.trend-card .trend-btn {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--primary);
    transition: all 0.3s ease;
    cursor: pointer;
}

.trend-card .trend-btn:hover {
    color: var(--accent);
}

.cta-bottom {
    text-align: center;
    margin-top: 50px;
}

/* ===================== */
/* Timeline              */
/* ===================== */
.timeline-section {
    padding: var(--section-pad);
    background: var(--surface);
}

.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    height: 100%;
    width: 3px;
    background: linear-gradient(180deg, var(--primary), var(--accent));
    border-radius: 4px;
    opacity: 0.3;
}

.timeline-item {
    margin-bottom: 50px;
    padding-left: 60px;
    position: relative;
}

.timeline-item h3 {
    color: var(--text-primary);
    margin-bottom: 8px;
}

.timeline-item p {
    color: var(--text-secondary);
    line-height: 1.8;
}

.timeline-dot {
    position: absolute;
    left: 11px;
    top: 5px;
    width: 22px;
    height: 22px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 0 5px rgba(243, 112, 33, 0.15);
}

/* ===================== */
/* Vision Section        */
/* ===================== */
.vision-section {
    padding: var(--section-pad);
    background: var(--grad-main);
    color: #fff;
}

.vision-section h2 {
    color: #fff;
}

/* ===================== */
/* Register Section      */
/* ===================== */
.register-section {
    padding: var(--section-pad);
    background: var(--surface-dark);
    position: relative;
}

.register-card {
    max-width: 800px;
    margin: 0 auto;
    padding: 60px;
    border-radius: var(--radius-xl);
    background: var(--surface);
    border: 1px solid rgba(27, 77, 255, 0.08);
    box-shadow: var(--shadow-lg);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px 30px;
    margin-bottom: 20px;
}

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 24px;
}

.form-control {
    width: 100%;
    padding: 16px 22px;
    background: var(--surface-dark);
    border: 1.5px solid rgba(27, 77, 255, 0.1);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

.form-control:focus {
    outline: none;
    background: var(--surface);
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(27, 77, 255, 0.1);
    transform: translateY(-2px);
}

.form-control.invalid {
    border-color: var(--danger) !important;
    animation: shake 0.4s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.form-group label {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-left: 2px;
    transition: color 0.3s ease;
}

.form-group:focus-within label {
    color: var(--primary);
}

.form-control::placeholder {
    color: var(--text-muted);
}

/* Choice Grids (Radio & Checkbox) */
.radio-grid, .checkbox-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 12px;
    margin-top: 5px;
}

.radio-option, .check-option {
    position: relative;
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--surface-dark);
    border: 1.5px solid rgba(27, 77, 255, 0.08);
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.3s ease;
    user-select: none;
}

.radio-option:hover, .check-option:hover {
    border-color: var(--primary);
    background: var(--primary-soft);
}

.radio-option input, .check-option input {
    accent-color: var(--accent);
    width: 20px;
    height: 20px;
    cursor: pointer;
}

/* Highlight selected state */
.radio-option:has(input:checked), 
.check-option:has(input:checked) {
    background: var(--primary-soft);
    border-color: var(--primary);
}

.radio-option span, .check-option span {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.radio-option:has(input:checked) span, 
.check-option:has(input:checked) span {
    color: var(--text-primary);
}

.other-input {
    margin-top: 12px;
    border-style: dashed;
}

/* Custom Select Styling */
select.form-control {
    appearance: none;
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%231B4DFF' 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 20px center;
    background-size: 20px;
    padding-right: 50px;
}

select.form-control:invalid {
    color: var(--text-muted);
}

select.form-control option {
    background: var(--surface);
    color: var(--text-primary);
    padding: 15px;
}

/* Google-Style Captcha (Custom) */
.captcha-container {
    background: var(--surface-dark);
    padding: 16px;
    border-radius: 4px;
    border: 1.5px solid rgba(27, 77, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 304px;
    height: 78px;
    margin: 10px auto;
    position: relative;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.captcha-container.rejected {
    border-color: var(--danger) !important;
    animation: captcha-shake 0.5s cubic-bezier(.36,.07,.19,.97) both;
}

.captcha-container.warning {
    border-color: #F59E0B !important;
}

@keyframes captcha-shake {
    10%, 90% { transform: translate3d(-1px, 0, 0); }
    20%, 80% { transform: translate3d(2px, 0, 0); }
    30%, 50%, 70% { transform: translate3d(-4px, 0, 0); }
    40%, 60% { transform: translate3d(4px, 0, 0); }
}

.captcha-check-wrapper {
    display: flex;
    align-items: center;
    gap: 15px;
}

.captcha-checkbox {
    width: 28px;
    height: 28px;
    border: 2px solid var(--text-muted);
    border-radius: 3px;
    cursor: pointer;
    position: relative;
    background: transparent;
    transition: 0.3s;
}

.captcha-checkbox:hover {
    border-color: var(--primary);
}

.captcha-checkbox.verifying {
    border-color: transparent !important;
}

.captcha-spinner {
    position: absolute;
    top: -2px;
    left: -2px;
    width: 32px;
    height: 32px;
    border: 3px solid transparent;
    border-top: 3px solid var(--primary);
    border-radius: 50%;
    animation: captcha-spin 0.8s linear infinite;
    display: none;
}

@keyframes captcha-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.captcha-checkbox.verified {
    border: none;
    background: transparent;
}

.captcha-checkbox.verified::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--success);
    font-size: 24px;
    font-weight: bold;
}

.captcha-text {
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 500;
}

.captcha-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    opacity: 0.6;
}

.captcha-logo img {
    height: 30px;
}

.captcha-logo span {
    font-size: 8px;
    color: var(--text-muted);
    text-transform: uppercase;
}

.hp-field {
    display: none !important;
}

/* ===================== */
/* Footer                */
/* ===================== */
footer {
    padding: 80px 0 40px;
    background: #0F1629;
    color: #fff;
    border-top: none;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 60px;
}

.footer-col h4 {
    margin-bottom: 25px;
    color: #fff;
    font-family: 'Montserrat', sans-serif;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col ul li a {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

.footer-col ul li a:hover {
    color: var(--accent);
}

.social-links {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.5);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.social-links a:hover {
    background: rgba(243, 112, 33, 0.15);
    border-color: var(--accent);
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(243, 112, 33, 0.2);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.85rem;
}

/* ===================== */
/* AOS Animations        */
/* ===================== */
[data-aos] {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.2, 0, 0, 1);
}

[data-aos].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

/* ===================== */
/* Responsive            */
/* ===================== */
@media (max-width: 1024px) {
    .feature-inner { gap: 40px; }
    .hero-content h1 { font-size: 3.5rem; }
    .cards-grid { grid-template-columns: repeat(2, 1fr); }
    .trend-grid { grid-template-columns: repeat(2, 1fr); }
    .vs-grid { gap: 30px; }
    .vs-card { padding: 40px; }
}

@media (max-width: 992px) {
    .vs-grid {
        grid-template-columns: 1fr;
    }
    .vs-divider {
        padding: 20px 0;
        font-size: 2rem;
        transform: rotate(90deg);
        margin: 10px 0;
    }
    .mission-quote {
        padding-left: 30px;
        font-size: 1.2rem;
    }
}


@media (max-width: 768px) {
    .feature-inner { grid-template-columns: 1fr; text-align: center; }
    .feature.alt .feature-inner { direction: ltr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .hero-content h1 { font-size: 2.8rem; }
    .nav-links { display: none; }
    .register-card { padding: 40px 20px; }
    .form-grid { grid-template-columns: 1fr; }
    .trend-grid { grid-template-columns: 1fr; }
    .section-head h2 { font-size: 2.5rem; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
    .cards-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .register-card { padding: 30px; }
    .hero-content h1 { font-size: 2.2rem; }
    .feature-content h2 { font-size: 2rem; }
}

/* ===================== */
/* Versus Section        */
/* ===================== */
.vs-section {
    padding: var(--section-pad);
    background: var(--surface);
    position: relative;
    overflow: hidden;
}

.vs-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 40px;
    align-items: center;
    margin-top: 60px;
}

.vs-card {
    padding: 50px;
    border-radius: var(--radius-lg);
    background: var(--surface-dark);
    border: 1px solid rgba(27, 77, 255, 0.06);
    transition: 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    position: relative;
    overflow: hidden;
}

.vs-card.traditional {
    opacity: 0.8;
}

.vs-card.solution {
    border-color: rgba(27, 77, 255, 0.2);
    box-shadow: var(--shadow-md);
    background: rgba(255, 255, 255, 0.02);
}

.vs-card h3 {
    font-size: 1.8rem;
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.vs-card ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.vs-card ul li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.05rem;
    color: var(--text-secondary);
}

.vs-divider {
    font-family: 'Montserrat', sans-serif;
    font-weight: 900;
    font-size: 2.5rem;
    color: var(--text-muted);
    opacity: 0.15;
    text-align: center;
}

.mission-quote {
    max-width: 850px;
    margin: 80px auto 0;
    font-style: italic;
    font-size: 1.35rem;
    color: var(--text-primary);
    line-height: 1.7;
    border-left: 5px solid var(--accent);
    padding: 10px 0 10px 40px;
    position: relative;
}

.mission-quote::before {
    content: '“';
    position: absolute;
    left: 10px;
    top: -20px;
    font-size: 5rem;
    font-family: 'Montserrat', sans-serif;
    color: var(--accent);
    opacity: 0.1;
}

/* ===================== */
/* Dark Mode Support     */
/* ===================== */
@media (prefers-color-scheme: dark) {
    :root {
        --surface-dark: #07070C;
        --surface: #0F0F1A;
        --surface-light: #161628;
        --text-primary: #F0F2F9;
        --text-secondary: #A0A8C0;
        --text-muted: #6B728E;
        --primary-soft: rgba(27, 77, 255, 0.12);
        --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.5);
        --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.6);
        --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.7);
        --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
        --grad-hero: linear-gradient(180deg, #07070C 0%, #0F0F1A 100%);
    }

    body {
        background-color: var(--surface-dark);
        color: var(--text-primary);
    }

    nav.scrolled {
        background: rgba(7, 7, 12, 0.85);
        border-bottom-color: rgba(255, 255, 255, 0.08);
    }

    .glass {
        background: rgba(255, 255, 255, 0.03);
        border-color: rgba(255, 255, 255, 0.08);
    }

    .stat-card, .feature-card, .trend-card, .register-card {
        background: var(--surface);
        border-color: rgba(255, 255, 255, 0.05);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    }

    .form-control {
        background: var(--surface-dark);
        border-color: rgba(255, 255, 255, 0.1);
        color: var(--text-primary);
    }

    .form-control:focus {
        background: var(--surface-light);
    }

    .radio-option, .check-option {
        background: var(--surface-light);
        border-color: rgba(255, 255, 255, 0.05);
    }

    .radio-option:hover, .check-option:hover {
        background: var(--primary-soft);
    }

    .radio-option:has(input:checked), 
    .check-option:has(input:checked) {
        background: var(--primary-soft);
    }

    footer {
        background-color: #050508;
        border-top: 1px solid rgba(255, 255, 255, 0.05);
    }
    
    .logo img {
        filter: brightness(1.2) contrast(1.1);
    }
}