/* ─────────────────────────────────────────────
   Generator Cod Deblocare - Stylesheet
   Modern Dark Theme with Tech Accents
   ───────────────────────────────────────────── */

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #06b6d4;
    --accent: #f59e0b;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --dark: #0f172a;
    --dark-light: #1e293b;
    --dark-lighter: #334155;
    --gray: #64748b;
    --gray-light: #94a3b8;
    --white: #f8fafc;
    --gradient-1: linear-gradient(135deg, #6366f1 0%, #06b6d4 100%);
    --gradient-2: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 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-glow: 0 0 20px rgba(99, 102, 241, 0.3);
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--dark);
    color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--dark);
}

::-webkit-scrollbar-thumb {
    background: var(--dark-lighter);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* ─── Navbar ─── */
.navbar {
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--white) !important;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.brand-icon {
    font-size: 1.75rem;
}

.brand-highlight {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-link {
    color: var(--gray-light) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    transition: color 0.3s;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-light) !important;
}

/* ─── Hero Section ─── */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(6, 182, 212, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 80%, rgba(245, 158, 11, 0.05) 0%, transparent 50%);
    z-index: 0;
}

.hero-section .container {
    position: relative;
    z-index: 1;
}

.hero-content {
    padding-right: 2rem;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    border-radius: 100px;
    font-weight: 600;
    font-size: 0.875rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--white);
}

.text-gradient {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-light);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--gray-light);
    font-weight: 500;
}

.feature-icon {
    color: var(--success);
    font-weight: 700;
}

/* ─── Generator Card ─── */
.generator-card {
    background: var(--dark-light);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.card-header {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(6, 182, 212, 0.1) 100%);
    padding: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.card-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--white);
}

.card-body {
    padding: 2rem;
}

.card-footer {
    background: rgba(0, 0, 0, 0.2);
    padding: 1.5rem 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* ─── Form Elements ─── */
.form-label {
    color: var(--gray-light);
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.input-group {
    background: var(--dark);
    border-radius: var(--radius);
    overflow: hidden;
}

.input-group-text {
    background: var(--dark-lighter);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--primary-light);
    padding: 1rem 1.25rem;
}

.form-control {
    background: var(--dark);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--white);
    padding: 1rem 1.25rem;
    font-size: 1.125rem;
    font-family: 'JetBrains Mono', monospace;
    letter-spacing: 2px;
}

.form-control:focus {
    background: var(--dark);
    border-color: var(--primary);
    color: var(--white);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.form-control::placeholder {
    color: var(--gray);
    letter-spacing: normal;
    font-family: 'Inter', sans-serif;
}

.form-text {
    color: var(--gray);
    font-size: 0.875rem;
}

/* ─── Buttons ─── */
.btn-primary {
    background: var(--gradient-1);
    border: none;
    color: white;
    font-weight: 700;
    padding: 1rem 2rem;
    border-radius: var(--radius);
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.4);
    color: white;
}

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

.generate-btn {
    font-size: 1.125rem;
    padding: 1.25rem;
}

.btn-light {
    background: var(--white);
    color: var(--dark);
    font-weight: 700;
    border: none;
    padding: 1rem 2rem;
    border-radius: var(--radius);
    transition: all 0.3s;
}

.btn-light:hover {
    background: var(--primary-light);
    color: var(--white);
    transform: translateY(-2px);
}

/* ─── Result Box ─── */
.result-box {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(6, 182, 212, 0.1) 100%);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: var(--radius);
    padding: 1.5rem;
    animation: fadeInUp 0.5s ease;
}

.result-code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--success);
    background: rgba(0, 0, 0, 0.3);
    padding: 1rem;
    border-radius: var(--radius);
    text-align: center;
    margin: 1rem 0;
    letter-spacing: 2px;
    word-break: break-all;
}

.result-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1rem;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--gray-light);
}

.meta-item strong {
    color: var(--white);
}

.chances-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 100px;
    font-weight: 600;
    font-size: 0.875rem;
}

.chances-badge.success {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
}

.chances-badge.warning {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning);
}

.chances-badge.danger {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger);
}

.instructions-box {
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius);
    padding: 1rem;
    margin-top: 1rem;
}

.instructions-box h5 {
    color: var(--primary-light);
    margin-bottom: 0.75rem;
    font-size: 1rem;
}

.instructions-box p {
    color: var(--gray-light);
    font-size: 0.875rem;
    line-height: 1.8;
    margin-bottom: 0;
}

/* ─── Redirect Box ─── */
.redirect-box {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1) 0%, rgba(239, 68, 68, 0.1) 100%);
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: var(--radius);
    padding: 1.5rem;
    text-align: center;
    animation: fadeInUp 0.5s ease;
}

.redirect-box h4 {
    color: var(--warning);
    margin-bottom: 1rem;
}

.redirect-box p {
    color: var(--gray-light);
    margin-bottom: 1.5rem;
}

/* ─── Security Badges ─── */
.security-badges {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.security-badges .badge {
    background: rgba(255, 255, 255, 0.05);
    color: var(--gray-light);
    font-weight: 500;
    padding: 0.5rem 1rem;
}

/* ─── Stats Section ─── */
.stats-section {
    padding: 4rem 0;
    background: linear-gradient(180deg, var(--dark) 0%, var(--dark-light) 100%);
}

.stat-card {
    text-align: center;
    padding: 2rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--gray-light);
    font-weight: 500;
}

/* ─── Models Section ─── */
.models-section {
    padding: 6rem 0;
    background: var(--dark-light);
}

.section-header {
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.section-subtitle {
    color: var(--gray-light);
    font-size: 1.125rem;
}

.model-card {
    background: var(--dark);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    overflow: hidden;
    height: 100%;
    transition: transform 0.3s, box-shadow 0.3s;
}

.model-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.model-header {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.model-header.nokia-dct3 {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2) 0%, rgba(99, 102, 241, 0.05) 100%);
}

.model-header.nokia-dct4 {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.2) 0%, rgba(6, 182, 212, 0.05) 100%);
}

.model-header.others {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.2) 0%, rgba(245, 158, 11, 0.05) 100%);
}

.model-icon {
    font-size: 2rem;
}

.model-header h4 {
    margin: 0;
    font-weight: 700;
    flex: 1;
}

.model-badge {
    background: rgba(255, 255, 255, 0.1);
    color: var(--gray-light);
    padding: 0.25rem 0.75rem;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
}

.model-body {
    padding: 1.5rem;
}

.model-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.model-list li {
    padding: 0.4rem 0;
    color: var(--gray-light);
    font-size: 0.9rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.model-list li:last-child {
    border-bottom: none;
}

.brand-group {
    margin-bottom: 1.5rem;
}

.brand-group:last-child {
    margin-bottom: 0;
}

.brand-group h5 {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.brand-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

.brand-dot.samsung { background: var(--primary); }
.brand-dot.siemens { background: var(--secondary); }
.brand-dot.motorola { background: var(--accent); }

.model-footer {
    padding: 1rem 1.5rem;
    background: rgba(0, 0, 0, 0.2);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.success-rate {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
}

.rate-bar {
    height: 6px;
    background: var(--gradient-1);
    border-radius: 3px;
    transition: width 1s ease;
}

.rate-text {
    font-size: 0.875rem;
    color: var(--gray-light);
    font-weight: 600;
    white-space: nowrap;
}

/* ─── How It Works ─── */
.how-it-works {
    padding: 6rem 0;
    background: var(--dark);
}

.step-card {
    text-align: center;
    padding: 3rem 2rem;
    position: relative;
}

.step-number {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    font-size: 6rem;
    font-weight: 800;
    color: rgba(255, 255, 255, 0.03);
    line-height: 1;
    z-index: 0;
}

.step-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
}

.step-card h4 {
    font-weight: 700;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}

.step-card p {
    color: var(--gray-light);
    position: relative;
    z-index: 1;
}

/* ─── FAQ Section ─── */
.faq-section {
    padding: 6rem 0;
    background: linear-gradient(180deg, var(--dark) 0%, var(--dark-light) 100%);
}

.accordion-item {
    background: var(--dark);
    border: 1px solid rgba(255, 255, 255, 0.05);
    margin-bottom: 1rem;
    border-radius: var(--radius) !important;
    overflow: hidden;
}

.accordion-button {
    background: var(--dark);
    color: var(--white);
    font-weight: 600;
    padding: 1.25rem;
    box-shadow: none !important;
}

.accordion-button:not(.collapsed) {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, transparent 100%);
    color: var(--primary-light);
}

.accordion-button::after {
    filter: invert(1);
}

.accordion-body {
    color: var(--gray-light);
    padding: 1.25rem;
    line-height: 1.8;
}

.accordion-body a {
    color: var(--primary-light);
    text-decoration: none;
}

.accordion-body a:hover {
    text-decoration: underline;
}

/* ─── CTA Section ─── */
.cta-section {
    padding: 4rem 0;
    background: var(--dark-light);
}

.cta-box {
    background: var(--gradient-1);
    border-radius: var(--radius-lg);
    padding: 3rem;
    color: white;
}

.cta-box h3 {
    font-weight: 800;
    margin-bottom: 1rem;
}

.cta-box p {
    opacity: 0.9;
    margin-bottom: 0;
}

/* ─── Footer ─── */
.footer {
    background: var(--dark);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: 4rem 0 2rem;
}

.footer-brand {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-desc {
    color: var(--gray);
    line-height: 1.7;
}

.footer h5 {
    color: var(--white);
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.footer-links {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--gray);
    text-decoration: none;
    transition: color 0.3s;
}

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

.footer-contact {
    color: var(--gray);
    line-height: 2;
}

.footer-badges {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.footer-bottom {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
    color: var(--gray);
}

.footer-bottom a {
    color: var(--primary-light);
    text-decoration: none;
}

/* ─── Animations ─── */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}
/* ─── IMEI Input Optimizations ─── */

.imei-input-group .form-control {
    text-align: center;
    font-variant-numeric: tabular-nums; /* Monospace numbers */
}

/* Mobile numeric keyboard optimization */
input[type="tel"]#imei {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 600;
}

/* Visual feedback for valid/invalid */
#imei:valid:not(:placeholder-shown) {
    border-color: var(--success);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

#imei:invalid:not(:placeholder-shown) {
    border-color: var(--danger);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

/* KBD styling for *#06# hint */
kbd {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85em;
    border: 1px solid var(--dark-lighter);
    box-shadow: 0 2px 0 var(--dark-lighter);
}
/* ─── Mobile Optimizations ─── */

/* Touch action improvements */
* {
    -webkit-tap-highlight-color: rgba(99, 102, 241, 0.2);
    touch-action: manipulation;
}

/* Prevent text zoom on iOS */
.form-control,
.btn {
    font-size: 16px; /* Prevents iOS zoom on focus */
}

/* IMEI input specific - allow zoom but optimize touch */
#imei {
    font-size: 16px; /* iOS requirement */
    letter-spacing: 1px; /* Reduced from 2px for mobile */
}

/* Safe area insets for notched phones */
@supports (padding-top: env(safe-area-inset-top)) {
    .navbar {
        padding-top: calc(1rem + env(safe-area-inset-top));
    }
    
    .hero-section {
        padding-top: calc(100px + env(safe-area-inset-top));
    }
}

/* Mobile-optimized touch targets */
.btn,
.nav-link,
.accordion-button {
    min-height: 44px; /* iOS HIG minimum */
    min-width: 44px;
}

/* Reduced motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ─── Responsive ─── */

/* Large tablets and down */
@media (max-width: 991.98px) {
    .hero-title {
        font-size: 2.2rem;
        line-height: 1.2;
    }

    .hero-content {
        padding-right: 0;
        margin-bottom: 2rem;
        text-align: center;
    }

    .hero-features {
        justify-content: center;
        gap: 1rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .generator-card {
        margin: 0 -0.5rem; /* Edge to edge on mobile */
        border-radius: var(--radius-lg);
    }

    .card-header,
    .card-body,
    .card-footer {
        padding: 1.5rem;
    }

    .step-card {
        margin-bottom: 2rem;
        padding: 2rem 1.5rem;
    }

    .step-number {
        font-size: 4rem;
    }
}

/* Mobile phones */
@media (max-width: 767.98px) {
    :root {
        --radius-xl: 20px;
        --radius-lg: 14px;
    }

    body {
        font-size: 15px; /* Slightly smaller base for mobile density */
    }

    /* Hero optimizations */
    .hero-section {
        min-height: auto;
        padding: 100px 0 40px;
    }

    .hero-title {
        font-size: 1.75rem;
        font-weight: 700;
        margin-bottom: 1rem;
    }

    .hero-subtitle {
        font-size: 1rem;
        line-height: 1.6;
        margin-bottom: 1.5rem;
    }

    .hero-features {
        flex-direction: column;
        gap: 0.75rem;
        align-items: center;
    }

    .feature-item {
        font-size: 0.9rem;
    }

    /* Generator card mobile */
    .generator-card {
        border-radius: var(--radius-lg);
        box-shadow: 0 4px 20px rgba(99, 102, 241, 0.2);
    }

    .card-header {
        padding: 1.25rem;
    }

    .card-header h3 {
        font-size: 1.25rem;
    }

    .card-body {
        padding: 1.25rem;
    }

    .card-footer {
        padding: 1rem 1.25rem;
    }

    /* Form mobile optimizations */
    .input-group-lg {
        flex-direction: column;
    }

    .input-group-lg .input-group-text {
        justify-content: center;
        border-radius: var(--radius) var(--radius) 0 0;
        border-bottom: none;
        padding: 0.75rem;
    }

    .input-group-lg .form-control {
        border-radius: 0 0 var(--radius) var(--radius);
        border-top: none;
        text-align: center;
        font-size: 18px; /* Larger for IMEI readability */
        letter-spacing: 2px;
        padding: 1rem;
    }

    .form-text {
        text-align: center;
        font-size: 0.8rem;
    }

    /* Button mobile */
    .generate-btn {
        font-size: 1rem;
        padding: 1rem;
        min-height: 56px; /* Larger touch target */
    }

    .btn-text,
    .btn-loader {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 0.5rem;
    }

    /* Result box mobile */
    .result-box {
        padding: 1rem;
    }

    .result-code {
        font-size: 1.25rem;
        padding: 0.75rem;
        letter-spacing: 1px;
    }

    .result-meta {
        flex-direction: column;
        gap: 0.5rem;
        align-items: center;
    }

    /* Stats section - 2x2 grid */
    .stats-section {
        padding: 2rem 0;
    }

    .stat-card {
        padding: 1.5rem 0.5rem;
    }

    .stat-number {
        font-size: 1.75rem;
    }

    .stat-label {
        font-size: 0.8rem;
    }
/* Horizontal scroll for model cards on mobile */
.models-section .row {
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 1rem;
    margin: 0 -0.75rem;
}

.models-section .row::-webkit-scrollbar {
    height: 4px;
}

.models-section .row::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 2px;
}

.models-section .col-lg-4 {
    flex: 0 0 85%;
    max-width: 85%;
    padding: 0 0.5rem;
    scroll-snap-align: center;
}

.model-card {
    height: auto;
    max-height: 400px;
}
    /* Models section - horizontal scroll cards */
    .models-section {
        padding: 3rem 0;
    }

    .section-header {
        margin-bottom: 2rem;
    }

    .section-header h2 {
        font-size: 1.5rem;
    }

    .section-subtitle {
        font-size: 0.9rem;
    }

    .model-card {
        margin-bottom: 1rem;
    }

    .model-header {
        padding: 1rem;
    }

    .model-header h4 {
        font-size: 1.1rem;
    }

    .model-icon {
        font-size: 1.5rem;
    }

    .model-body {
        padding: 1rem;
        max-height: 300px;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch; /* Smooth scroll iOS */
    }

    .model-list li {
        font-size: 0.85rem;
        padding: 0.3rem 0;
    }

    /* How it works */
    .how-it-works {
        padding: 3rem 0;
    }

    .step-card {
        padding: 2rem 1rem;
    }

    .step-icon {
        font-size: 2.5rem;
    }

    .step-card h4 {
        font-size: 1.1rem;
    }

    .step-card p {
        font-size: 0.9rem;
    }

    /* FAQ mobile */
    .faq-section {
        padding: 3rem 0;
    }

    .accordion-button {
        padding: 1rem;
        font-size: 0.95rem;
        line-height: 1.4;
    }

    .accordion-body {
        padding: 1rem;
        font-size: 0.9rem;
    }

    /* CTA mobile */
    .cta-section {
        padding: 2rem 0;
    }

    .cta-box {
        padding: 2rem 1.5rem;
        text-align: center;
        margin: 0 -0.5rem;
        border-radius: var(--radius-lg);
    }

    .cta-box h3 {
        font-size: 1.25rem;
        margin-bottom: 0.75rem;
    }

    .cta-box p {
        font-size: 0.9rem;
        margin-bottom: 1.5rem;
    }

    .btn-lg {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
        width: 100%;
    }

    /* Footer mobile */
    .footer {
        padding: 2rem 0 1rem;
        text-align: center;
    }

    .footer-brand {
        justify-content: center;
        font-size: 1.25rem;
    }

    .footer-desc {
        font-size: 0.9rem;
        margin-bottom: 1.5rem;
    }

    .footer h5 {
        margin-bottom: 1rem;
        font-size: 1rem;
    }

    .footer-links li {
        margin-bottom: 0.5rem;
    }

    .footer-links a {
        font-size: 0.9rem;
    }

    .footer-contact {
        font-size: 0.9rem;
    }

    .footer-badges {
        justify-content: center;
        margin-top: 1rem;
    }

    .footer-bottom {
        margin-top: 2rem;
        padding-top: 1.5rem;
        font-size: 0.8rem;
    }

    /* Security badges wrap better */
    .security-badges {
        gap: 0.5rem;
    }

    .security-badges .badge {
        font-size: 0.75rem;
        padding: 0.4rem 0.75rem;
    }

    /* Navbar mobile optimizations */
    .navbar {
        padding: 0.5rem 0;
    }

    .navbar-brand {
        font-size: 1.25rem;
    }

    .navbar-toggler {
        border: none;
        padding: 0.5rem;
        font-size: 1.25rem;
    }

    .navbar-collapse {
        background: rgba(15, 23, 42, 0.98);
        margin: 0.5rem -1rem 0;
        padding: 1rem;
        border-radius: var(--radius);
        border: 1px solid rgba(255, 255, 255, 0.1);
    }

    .nav-link {
        padding: 0.75rem 1rem !important;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    .nav-link:last-child {
        border-bottom: none;
    }
}

/* Small phones */
@media (max-width: 375px) {
    .hero-title {
        font-size: 1.5rem;
    }

    .card-header h3 {
        font-size: 1.1rem;
    }

    .stat-number {
        font-size: 1.5rem;
    }

    .input-group-lg .form-control {
        font-size: 16px;
        letter-spacing: 1px;
    }
}

/* Landscape mobile optimizations */
@media (max-height: 500px) and (orientation: landscape) {
    .hero-section {
        min-height: auto;
        padding: 80px 0 40px;
    }

    .hero-title {
        font-size: 1.5rem;
    }

    .hero-features {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }
}

/* High DPI mobile screens */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .hero-bg {
        background: 
            radial-gradient(ellipse at 20% 50%, rgba(99, 102, 241, 0.12) 0%, transparent 50%),
            radial-gradient(ellipse at 80% 20%, rgba(6, 182, 212, 0.08) 0%, transparent 50%);
    }
}

/* Dark mode preference (already dark, but ensure consistency) */
@media (prefers-color-scheme: dark) {
    :root {
        color-scheme: dark;
    }
}