/* ===== TRAFFX Main Stylesheet ===== */
/* Дизайн: минималистичный, современный, акцент - фиолетовый градиент */

:root {
    /* Светлая тема (основная) */
    --color-bg: #F5F4F8;
    --color-bg-soft: #ECEAF3;
    --color-card: #FFFFFF;
    --color-card-alt: #F9FAFB;
    --color-text: #0F0F1A;
    --color-text-muted: #6B7280;
    --color-text-soft: #9CA3AF;
    --color-accent: #7C3AED;
    --color-accent-soft: #A78BFA;
    --color-accent-bg: #EDE9FE;
    --color-dark: #0F0F1A;
    --color-border: #E5E7EB;
    --color-success: #10B981;
    --color-header-bg: rgba(245, 244, 248, 0.85);
    --color-cta-banner-bg: #0F0F1A;
    --color-cta-banner-btn-bg: #fff;
    --color-cta-banner-btn-text: #0F0F1A;
    --color-case-image-bg: linear-gradient(135deg, #1A1A2E, #16213E);
    --color-shadow-1: rgba(15, 15, 26, 0.04);
    --color-shadow-2: rgba(15, 15, 26, 0.08);
    --color-shadow-accent: rgba(124, 58, 237, 0.15);

    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    --shadow-sm: 0 2px 8px var(--color-shadow-1);
    --shadow-md: 0 8px 24px var(--color-shadow-2);
    --shadow-lg: 0 20px 60px var(--color-shadow-accent);

    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --max-width: 1200px;
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Тёмная тема */
[data-theme="dark"] {
    --color-bg: #0A0A12;
    --color-bg-soft: #12121C;
    --color-card: #161624;
    --color-card-alt: #1E1E2E;
    --color-text: #F1F1F5;
    --color-text-muted: #9CA3AF;
    --color-text-soft: #6B7280;
    --color-accent: #A78BFA;
    --color-accent-soft: #C4B5FD;
    --color-accent-bg: rgba(167, 139, 250, 0.12);
    --color-dark: #A78BFA;
    --color-border: #262635;
    --color-success: #34D399;
    --color-header-bg: rgba(10, 10, 18, 0.85);
    --color-cta-banner-bg: linear-gradient(135deg, #1E1E2E 0%, #2A1F3D 100%);
    --color-cta-banner-btn-bg: #A78BFA;
    --color-cta-banner-btn-text: #0A0A12;
    --color-case-image-bg: linear-gradient(135deg, #1E1E2E, #2A1F3D);
    --color-shadow-1: rgba(0, 0, 0, 0.3);
    --color-shadow-2: rgba(0, 0, 0, 0.5);
    --color-shadow-accent: rgba(167, 139, 250, 0.2);
    color-scheme: dark;
}

/* Плавный переход при переключении темы */
body, .site-header, .section-card, .service-card, .case-card,
.contact-btn, .filter-btn, .step-card, .modal, .cta-banner,
.form-field input, .form-field textarea, .form-field select {
    transition: background-color var(--transition), border-color var(--transition), color var(--transition), box-shadow var(--transition);
}

/* Логотипы: показываем соответствующий теме */
.logo .logo-dark { display: none; }
[data-theme="dark"] .logo .logo-light { display: none; }
[data-theme="dark"] .logo .logo-dark { display: block; }

/* Группа действий в шапке — кнопка темы + CTA рядом */
.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Переключатель темы */
.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--color-border);
    background: var(--color-card);
    color: var(--color-text);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
    position: relative;
    flex-shrink: 0;
}

.theme-toggle:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: rotate(15deg);
}

.theme-icon {
    position: absolute;
    inset: 0;
    margin: auto;
    transition: opacity var(--transition), transform var(--transition);
}

.theme-icon-sun { opacity: 1; transform: scale(1) rotate(0); }
.theme-icon-moon { opacity: 0; transform: scale(0.5) rotate(-90deg); }
[data-theme="dark"] .theme-icon-sun { opacity: 0; transform: scale(0.5) rotate(90deg); }
[data-theme="dark"] .theme-icon-moon { opacity: 1; transform: scale(1) rotate(0); }

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

body.no-scroll {
    overflow: hidden;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition);
}

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

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.accent {
    color: var(--color-accent);
}

/* ===== Header ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--color-header-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition), background-color var(--transition);
}

.site-header.scrolled {
    border-bottom-color: var(--color-border);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    height: 36px;
    text-decoration: none;
}

.logo-svg {
    height: 36px;
    width: auto;
    filter: drop-shadow(0 4px 6px rgba(139, 92, 246, 0.3));
}

.logo-text {
    font-size: 22px;
    font-weight: 800;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, #3B82F6, #8B5CF6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-transform: uppercase;
}

.main-nav ul {
    display: flex;
    gap: 36px;
    list-style: none;
}

.main-nav a {
    color: var(--color-text);
    font-size: 14px;
    font-weight: 500;
    transition: color var(--transition);
}

.main-nav a:hover {
    color: var(--color-accent);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 22px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all var(--transition);
    white-space: nowrap;
    text-decoration: none;
}

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

[data-theme="dark"] .btn-primary {
    background: var(--color-accent);
    color: #0A0A12;
}

.btn-primary:hover {
    background: var(--color-accent);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

[data-theme="dark"] .btn-primary:hover {
    background: var(--color-accent-soft);
}

.btn-secondary {
    background: var(--color-card);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.btn .arrow {
    transition: transform var(--transition);
}

.btn:hover .arrow {
    transform: translate(2px, -2px);
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 36px;
    height: 36px;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 4px;
}

.mobile-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all var(--transition);
}

/* ===== Hero ===== */
.hero {
    padding: 60px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 50%;
    right: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(167, 139, 250, 0.25) 0%, transparent 70%);
    border-radius: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    z-index: 0;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-eyebrow {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: var(--color-accent);
    letter-spacing: 1.5px;
    margin-bottom: 24px;
}

.hero-eyebrow::before {
    content: '⏵ ';
}

.hero-title {
    font-size: clamp(36px, 5vw, 56px);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -1.5px;
    margin-bottom: 24px;
}

.hero-title em {
    font-style: italic;
    font-weight: 800;
}

.hero-subtitle {
    font-size: 16px;
    color: var(--color-text-muted);
    margin-bottom: 36px;
    max-width: 460px;
}

.hero-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

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

.hero-visual img,
.hero-visual svg {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 30px 80px rgba(124, 58, 237, 0.18));
}

/* ===== Section ===== */
section {
    padding: 60px 0;
    position: relative;
}

.section-card {
    background: var(--color-card);
    border-radius: var(--radius-xl);
    padding: 56px 48px;
    margin-bottom: 28px;
    box-shadow: var(--shadow-sm);
}

.section-eyebrow {
    font-size: 11px;
    font-weight: 600;
    color: var(--color-text-soft);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 12px;
    text-align: center;
}

.section-title {
    font-size: clamp(28px, 3.5vw, 42px);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -1px;
    margin-bottom: 40px;
    text-align: center;
}

/* Внутри детальных страниц с hero-блоком — выравнивание слева */
.case-hero-content .section-eyebrow,
.case-hero-content .section-title {
    text-align: left;
}

/* ===== Services Grid ===== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.service-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: all var(--transition);
    text-decoration: none;
    color: inherit;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, #3B82F6, #8B5CF6);
    opacity: 0;
    transition: opacity var(--transition);
}

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

.service-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.service-icon {
    width: 72px;
    height: 72px;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.service-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
}

.service-desc {
    font-size: 13px;
    color: var(--color-text-muted);
    margin-bottom: 20px;
    flex-grow: 1;
}

.service-features {
    list-style: none;
    margin-bottom: 24px;
    border-top: 1px solid var(--color-border);
    padding-top: 16px;
    text-align: left;
    width: 100%;
}

.service-features li {
    font-size: 13px;
    color: var(--color-text);
    padding: 4px 0;
    position: relative;
    padding-left: 16px;
}

.service-features li::before {
    content: '◇';
    color: var(--color-accent);
    position: absolute;
    left: 0;
    top: 4px;
    font-size: 10px;
}

.service-more {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 700;
    color: var(--color-text);
    padding-top: 16px;
    border-top: 1px solid var(--color-border);
    cursor: pointer;
    transition: color var(--transition), gap var(--transition);
    width: 100%;
}

.service-card:hover .service-more {
    color: var(--color-accent);
}

.service-card:hover .service-more .arrow {
    transform: translate(2px, -2px);
}

/* ===== Service Detail Page ===== */
.service-page-icon {
    width: 64px;
    height: 32px;
    margin-bottom: 20px;
}

.service-page-icon svg {
    width: auto;
    height: 100%;
}

.service-page-icon-large {
    width: 140px;
    height: 80px;
    filter: drop-shadow(0 10px 30px rgba(0,0,0,0.3));
}

.service-page-icon-large svg {
    width: 100%;
    height: 100%;
}

.service-page-features {
    list-style: none;
    padding: 0;
    margin: 0 0 28px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px 16px;
}

.service-page-features li {
    position: relative;
    padding-left: 22px;
    font-size: 14px;
    color: var(--color-text);
    line-height: 1.5;
}

.service-page-features li::before {
    content: '◇';
    color: var(--color-accent);
    position: absolute;
    left: 0;
    top: 2px;
}

/* ===== Cases Grid ===== */
.cases-header {
    text-align: center;
    margin-bottom: 20px;
}

.cases-filter-bar {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    max-width: 100%;
    margin: 0 auto 40px;
    padding: 0;
    background: transparent;
    border-radius: 0;
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
}

.cases-filter-bar::-webkit-scrollbar {
    display: none;
}


.filter-btn {
    padding: 8px 16px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--color-text-muted);
    transition: all var(--transition);
    flex: 0 0 auto;
}


.filter-btn.active {
    background: var(--color-card);
    color: var(--color-text);
    box-shadow: var(--shadow-sm);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.case-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition);
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    position: relative;
}

.case-card::before {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, #3B82F6, #8B5CF6);
    opacity: 0;
    transition: opacity var(--transition);
    z-index: 10;
}

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

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

.case-more-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: auto;
    font-size: 14px;
    font-weight: 700;
    color: var(--color-accent);
    transition: gap var(--transition);
    padding-top: 16px;
    border-top: 1px solid var(--color-border);
    width: 100%;
}

.case-card:hover .case-more-link { gap: 10px; }

.case-image {
    height: 140px;
    background: var(--color-case-image-bg);
    position: relative;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    padding: 12px;
    overflow: hidden;
}

.case-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.2), rgba(236, 72, 153, 0.1));
    z-index: 1;
}

.case-image img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

.case-category {
    background: rgba(15, 15, 26, 0.7);
    backdrop-filter: blur(8px);
    color: #fff;
    font-size: 11px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 999px;
    z-index: 2;
    position: relative;
}

.case-roi {
    background: var(--color-success);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 999px;
    z-index: 2;
    position: relative;
}

.case-body {
    padding: 24px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    flex-grow: 1;
}

.case-title {
    font-size: 16px;
    font-weight: 800;
    margin-bottom: 20px;
    min-height: 40px;
    line-height: 1.3;
}

.case-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-bottom: 20px;
    width: 100%;
}

.case-metric-label {
    font-size: 10px;
    color: var(--color-text-soft);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.case-metric-value {
    font-size: 14px;
    font-weight: 700;
    margin-top: 2px;
}

.case-metric:last-child .case-metric-value {
    color: var(--color-success);
}

.case-chart {
    height: 40px;
    width: 100%;
}

/* ===== About / Process ===== */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-top: 32px;
}

.step-card {
    background: var(--color-bg);
    border-radius: var(--radius-md);
    padding: 24px;
}

.step-num {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-accent);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin-bottom: 16px;
}

.step-title {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
}

.step-desc {
    font-size: 13px;
    color: var(--color-text-muted);
}

.about-text {
    font-size: 16px;
    color: var(--color-text-muted);
    max-width: 800px;
    line-height: 1.7;
    text-align: center;
    margin: 0 auto;
}

/* ===== CTA Banner ===== */
.cta-banner {
    background: var(--color-cta-banner-bg);
    color: #fff;
    border-radius: var(--radius-lg);
    padding: 32px 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.cta-banner-text h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 4px;
}

.cta-banner-text p {
    color: rgba(255, 255, 255, 0.65);
    font-size: 14px;
}

.cta-banner .btn-primary {
    background: var(--color-cta-banner-btn-bg);
    color: var(--color-cta-banner-btn-text);
}

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

[data-theme="dark"] .cta-banner .btn-primary:hover {
    background: var(--color-accent-soft);
    color: #0A0A12;
}

/* ===== Footer ===== */
.site-footer {
    padding: 80px 0 40px;
    background: var(--color-card);
    border-top: 1px solid var(--color-border);
    position: relative;
}

.site-footer::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-accent-soft), transparent);
    opacity: 0.5;
}

.footer-inner {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 40px;
    align-items: center;
    margin-bottom: 40px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-brand .logo img {
    height: 32px;
}

.footer-tagline {
    color: var(--color-text-muted);
    font-size: 13px;
}

.footer-contacts h4 {
    font-size: 14px;
    color: var(--color-text-muted);
    margin-bottom: 16px;
    text-align: center;
    font-weight: 500;
}

.footer-contacts-actions {
    display: flex;
    justify-content: center;
}

.contact-btn {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    padding: 10px 18px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition);
}

.contact-btn:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.footer-copy {
    text-align: right;
    color: var(--color-text-muted);
    font-size: 13px;
    line-height: 1.6;
}

.footer-divider {
    border-top: 1px solid var(--color-border);
    padding-top: 16px;
    text-align: center;
    color: var(--color-text-soft);
    font-size: 12px;
}

/* ===== Modal ===== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 15, 26, 0.6);
    backdrop-filter: blur(8px);
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.modal-overlay.active {
    display: flex;
    animation: fadeIn 0.25s ease;
}

.modal {
    background: var(--color-card);
    border-radius: var(--radius-lg);
    padding: 36px;
    max-width: 480px;
    width: 100%;
    position: relative;
    animation: slideUp 0.3s ease;
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    transition: all var(--transition);
}

.modal-close:hover {
    background: var(--color-bg);
    color: var(--color-text);
}

.modal h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 8px;
}

.modal p {
    color: var(--color-text-muted);
    font-size: 14px;
    margin-bottom: 24px;
}

.form-field {
    margin-bottom: 16px;
}

.form-field label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--color-text);
}

.form-field input,
.form-field textarea {
    width: 100%;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    font-family: inherit;
    font-size: 14px;
    background: var(--color-bg);
    color: var(--color-text);
    transition: border-color var(--transition);
}

.form-field input:focus,
.form-field textarea:focus {
    outline: none;
    border-color: var(--color-accent);
}

.form-field textarea {
    resize: vertical;
    min-height: 90px;
}

.modal .btn {
    width: 100%;
    justify-content: center;
    margin-top: 8px;
}

.form-notice {
    margin-top: 16px;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    text-align: center;
}

.form-notice.success {
    background: #D1FAE5;
    color: #065F46;
}

.form-notice.error {
    background: #FEE2E2;
    color: #991B1B;
}

[data-theme="dark"] .form-notice.success {
    background: rgba(52, 211, 153, 0.15);
    color: #6EE7B7;
}

[data-theme="dark"] .form-notice.error {
    background: rgba(239, 68, 68, 0.15);
    color: #FCA5A5;
}

/* ===== Case Detail Page ===== */
.case-page {
    padding-top: 24px;
}

.breadcrumbs {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--color-text-muted);
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.breadcrumbs a {
    color: var(--color-text-muted);
    transition: color var(--transition);
}

.breadcrumbs a:hover { color: var(--color-accent); }
.breadcrumbs .current { color: var(--color-text); font-weight: 500; }

.case-hero {
    overflow: hidden;
}

.case-hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 48px;
    align-items: center;
    margin-bottom: 32px;
}

.case-page-category {
    display: inline-block;
    color: #fff;
    font-size: 12px;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 999px;
    margin-bottom: 16px;
}

.case-page-title {
    font-size: clamp(28px, 4vw, 44px);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -1px;
    margin-bottom: 16px;
}

.case-page-lead {
    font-size: 16px;
    color: var(--color-text-muted);
    margin-bottom: 28px;
    line-height: 1.6;
}

.case-page-metrics {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 28px;
}

.case-page-metric {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 16px 18px;
}

.case-page-metric.highlight {
    border-color: var(--color-success);
}

.case-page-metric.roi {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-soft));
    border-color: transparent;
    color: #fff;
}

.case-page-metric-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-soft);
    margin-bottom: 4px;
}

.case-page-metric.roi .case-page-metric-label { color: rgba(255, 255, 255, 0.85); }

.case-page-metric-value {
    font-size: 22px;
    font-weight: 700;
}

.case-page-metric.highlight .case-page-metric-value { color: var(--color-success); }

.case-page-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.case-hero-visual {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    aspect-ratio: 4/3;
}

.case-hero-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.case-hero-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.case-page-chart-wrap {
    background: var(--color-bg);
    border-radius: var(--radius-md);
    padding: 24px;
    margin-top: 16px;
}

.case-chart-large {
    width: 100%;
    height: 140px;
}

.case-content {
    font-size: 16px;
    line-height: 1.75;
    color: var(--color-text);
    max-width: 820px;
    margin: 0 auto;
}

.case-content p { margin-bottom: 16px; }

/* ===== Media Gallery ===== */
.media-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 16px;
}

.media-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--color-bg);
    aspect-ratio: 4/3;
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition);
}

.media-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.media-item img,
.media-item video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.media-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.35);
    color: #fff;
    pointer-events: none;
}

.media-caption {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.75));
    color: #fff;
    font-size: 13px;
    padding: 24px 14px 12px;
}

/* ===== Lightbox ===== */
.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.92);
    z-index: 1100;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.lightbox.active {
    display: flex;
    animation: fadeIn 0.2s ease;
}

.lightbox-content {
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-content img,
.lightbox-content video {
    max-width: 90vw;
    max-height: 90vh;
    border-radius: var(--radius-md);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
}

.lightbox-close {
    position: absolute;
    top: 18px;
    right: 24px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: #fff;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    font-size: 28px;
    cursor: pointer;
    transition: background var(--transition);
}

.lightbox-close:hover { background: rgba(255, 255, 255, 0.2); }

/* ===== Case Navigation ===== */
.case-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 28px;
}

.case-nav-link {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 20px 24px;
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.case-nav-link.next { text-align: right; align-items: flex-end; }

.case-nav-link:hover {
    border-color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.case-nav-label {
    font-size: 12px;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

.case-nav-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.bottom-nav {
    display: none;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .services-grid,
    .cases-grid,
    .steps-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-actions {
        justify-content: center;
    }

    .footer-inner {
        grid-template-columns: 1fr;
        gap: 32px;
        text-align: center;
    }

    .footer-contacts h4,
    .footer-copy {
        text-align: center;
    }

    .section-card {
        padding: 44px 32px;
    }
}

@media (max-width: 768px) {
    /* Prevent iOS auto-zoom on form inputs */
    .form-field input,
    .form-field textarea,
    .form-field select {
        font-size: 16px;
    }

    .main-nav,
    .site-footer {
        display: none;
    }

    .header-cta {
        display: none;
    }

    .container {
        padding: 0 20px;
    }

    .header-inner {
        padding: 16px 0;
        position: relative;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .site-header .logo {
        position: static;
        display: flex;
        justify-content: center;
        align-items: center;
        z-index: 2;
        height: auto;
        white-space: nowrap;
    }

    .site-header .logo-svg {
        height: 32px;
        width: auto;
    }

    .site-header .logo-text {
        font-size: 20px;
    }

    .header-actions {
        display: flex;
        align-items: center;
        gap: 12px;
        position: absolute;
        right: 0;
        top: 50%;
        transform: translateY(-50%);
        z-index: 3;
    }
    
    .service-page-features { grid-template-columns: 1fr; }

    .mobile-toggle {
        display: none !important;
    }

    /* Bottom Navigation Bar */
    body {
        padding-bottom: 74px; /* Space for bottom navigation */
    }

    .bottom-nav {
        display: flex;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        height: 64px;
        background: rgba(255, 255, 255, 0.9);
        border-top: 1px solid var(--color-border);
        box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.05);
        z-index: 1000;
        justify-content: space-around;
        align-items: center;
        padding: 0 8px;
        backdrop-filter: blur(15px);
        -webkit-backdrop-filter: blur(15px);
    }

    [data-theme="dark"] .bottom-nav {
        background: rgba(22, 22, 36, 0.95);
        border-top-color: var(--color-border);
        box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
    }

    .bottom-nav-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        flex: 1;
        height: 100%;
        color: var(--color-text-muted);
        font-size: 11px;
        font-weight: 500;
        gap: 4px;
        transition: color var(--transition), transform 0.15s ease;
    }

    .bottom-nav-item svg {
        transition: transform 0.2s ease, stroke var(--transition);
        stroke: var(--color-text-muted);
    }

    .bottom-nav-item:hover,
    .bottom-nav-item:focus {
        color: var(--color-accent);
    }

    .bottom-nav-item:hover svg {
        stroke: var(--color-accent);
        transform: translateY(-2px);
    }

    .bottom-nav-item:active {
        transform: scale(0.92);
    }

    /* Case and Page layouts */
    .case-hero-grid { grid-template-columns: 1fr; gap: 32px; }
    .case-page-metrics { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .case-nav { grid-template-columns: 1fr; gap: 16px; }
    .case-nav-link.next { text-align: left; align-items: flex-start; }

    .section-card {
        padding: 36px 24px;
        border-radius: var(--radius-lg);
    }

    .section-title {
        margin-bottom: 28px;
    }

    .cases-header {
        margin-bottom: 16px;
    }

    .cases-filter-bar {
        justify-content: flex-start;
        margin-bottom: 24px;
        padding-bottom: 6px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        gap: 8px;
        display: flex;
        width: 100%;
    }
    
    .cases-filter-bar::-webkit-scrollbar {
        display: none;
    }

    .filter-btn {
        white-space: nowrap;
        padding: 8px 16px;
        font-size: 13px;
    }

    .services-grid,
    .cases-grid,
    .steps-grid,
    .media-gallery {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .case-card,
    .service-card,
    .step-card {
        height: auto;
        padding: 24px;
    }

    .case-title {
        min-height: 0;
    }

    .cta-banner {
        flex-direction: column;
        text-align: center;
        align-items: stretch;
        padding: 36px 24px;
        gap: 20px;
    }

    .cta-banner .btn,
    .hero-actions .btn,
    .case-page-actions .btn {
        justify-content: center;
        width: 100%;
        padding: 14px 24px;
    }

    .hero {
        padding: 40px 0;
    }

    .hero-grid {
        gap: 32px;
    }

    .hero-title,
    .case-page-title {
        letter-spacing: -0.8px;
    }
}

@media (max-width: 480px) {
    .section-card {
        padding: 28px 16px;
        margin-bottom: 20px;
    }

    .hero-actions,
    .case-page-actions {
        flex-direction: column;
        gap: 12px;
    }

    .case-page-metrics,
    .case-metrics {
        grid-template-columns: 1fr;
    }

    .case-image {
        height: 200px;
    }

    .case-page-chart-wrap {
        padding: 16px;
    }

    .modal-overlay,
    .lightbox {
        padding: 16px;
    }

    .modal {
        padding: 32px 20px 24px;
    }
    
}