/* ============================================
   CSS Reset & Base Styles
   ============================================ */

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

:root {
    /* Light Theme Colors */
    --color-primary: #1e40af;
    --color-primary-dark: #1e3a8a;
    --color-accent: #0891b2;
    --color-accent-light: #06b6d4;

    --color-bg: #ffffff;
    --color-bg-secondary: #f8fafc;
    --color-bg-tertiary: #e2e8f0;

    --color-text: #1e293b;
    --color-text-secondary: #475569;
    --color-text-muted: #64748b;

    --color-border: #e2e8f0;
    --color-shadow: rgba(0, 0, 0, 0.1);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-base: 1.125rem;
    --font-size-sm: 1rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 1.75rem;
    --font-size-3xl: 2.125rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

[data-theme="dark"] {
    /* Dark Theme Colors */
    --color-primary: #3b82f6;
    --color-primary-dark: #2563eb;
    --color-accent: #06b6d4;
    --color-accent-light: #22d3ee;

    --color-bg: #0f172a;
    --color-bg-secondary: #1e293b;
    --color-bg-tertiary: #334155;

    --color-text: #e2e8f0;
    --color-text-secondary: #cbd5e1;
    --color-text-muted: #94a3b8;

    --color-border: #334155;
    --color-shadow: rgba(0, 0, 0, 0.3);
}

html {
    scroll-behavior: smooth;
    scroll-snap-type: y mandatory;
    overflow-y: scroll;
    height: 100%;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE and Edge */
}

html::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Opera */
}

body {
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    transition: background-color var(--transition-base), color var(--transition-base);
    height: 100%;
    overflow-y: scroll;
    scroll-snap-type: y mandatory;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE and Edge */
}

body::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Opera */
}

/* Utility class to disable scroll-snap during JS-driven animations */
html.no-snap,
html.no-snap body {
    scroll-snap-type: none !important;
    scroll-behavior: auto !important;
}

p {
    text-align: justify;
    text-justify: inter-word;
    hyphens: auto;
    -webkit-hyphens: auto;
}

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

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

a:hover {
    color: var(--color-accent-light);
}

ul {
    list-style: none;
}

/* ============================================
   Layout Components
   ============================================ */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    min-height: 100vh;
    max-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    scroll-snap-align: start;
    scroll-snap-stop: always;
    padding: calc(70px + var(--spacing-md)) var(--spacing-md) var(--spacing-md);
    overflow: hidden;
}

.section > .container {
    width: 100%;
    max-height: calc(100vh - 120px);
    overflow: hidden;
}

.section-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.section-subtitle {
    font-size: var(--font-size-sm);
    text-align: center;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* ============================================
   Navigation
   ============================================ */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.8);
    transition: all var(--transition-base);
    transform: translateY(0);
}

.nav.hidden {
    transform: translateY(-100%);
}

[data-theme="dark"] .nav {
    background-color: rgba(15, 23, 42, 0.8);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-md);
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 40px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
    margin-left: auto;
}

.nav-links a {
    color: var(--color-text);
    font-weight: 500;
    transition: color var(--transition-fast);
}

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

.lang-toggle {
    background: var(--color-bg-secondary);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-xs);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text);
    transition: all var(--transition-fast);
    width: 40px;
    height: 40px;
    position: fixed;
    bottom: calc(var(--spacing-md) + 48px);
    right: var(--spacing-md);
    z-index: 1000;
    box-shadow: 0 2px 10px var(--color-shadow);
    font-size: 1.2rem;
    line-height: 1;
}

.lang-toggle:hover {
    border-color: var(--color-primary);
}

.theme-toggle {
    background: var(--color-bg-secondary);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-xs);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text);
    transition: all var(--transition-fast);
    width: 40px;
    height: 40px;
    position: fixed;
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    z-index: 1000;
    box-shadow: 0 2px 10px var(--color-shadow);
}

.theme-toggle:hover {
    border-color: var(--color-primary);
    background-color: var(--color-bg-secondary);
}

.theme-toggle .sun-icon {
    display: none;
}

.theme-toggle .moon-icon {
    display: block;
}

[data-theme="dark"] .theme-toggle .sun-icon {
    display: block;
}

[data-theme="dark"] .theme-toggle .moon-icon {
    display: none;
}

/* ============================================
   Hamburger Menu Button
   ============================================ */

.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-text);
    border-radius: 2px;
    transition: all var(--transition-base);
}

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

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

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

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--color-bg);
        border-bottom: 1px solid var(--color-border);
        padding: var(--spacing-sm) 0;
        box-shadow: 0 10px 30px var(--color-shadow);
    }

    [data-theme="dark"] .nav-links {
        background-color: var(--color-bg);
    }

    .nav-links.open {
        display: flex;
    }

    .nav-links a {
        padding: var(--spacing-sm) var(--spacing-md);
    }
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding-bottom: 15vh;
    overflow: hidden;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    scroll-snap-align: start;
    scroll-snap-stop: always;
}

.hero-image-placeholder {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(30, 64, 175, 0.85) 0%, rgba(8, 145, 178, 0.85) 100%),
                url('images/images/umit-yildirim-Ass0DusYDk4-unsplash.jpg') center/cover no-repeat;
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    color: white;
    padding: var(--spacing-xl);
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
    min-height: 1.2em;
    white-space: nowrap;
}

.hero-title.typing::after {
    content: '|';
    animation: blink 0.7s step-end infinite;
    margin-left: 2px;
}

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

.hero-reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 1s ease, transform 1s ease;
}

.hero-reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-subtitle.visible {
    opacity: 0.95;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.hero-scroll-down {
    display: flex;
    justify-content: center;
    margin-top: var(--spacing-xl);
    color: white;
    text-decoration: none;
}

.hero-scroll-down svg {
    width: 64px;
    height: 64px;
    animation: hero-bounce 2s ease-in-out infinite;
}

@keyframes hero-bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(12px);
    }
}

@media (max-width: 768px) {
    /* ---- Global mobile overrides ---- */
    html, body {
        scroll-snap-type: none;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    .section {
        min-height: auto;
        max-height: none;
        overflow: visible;
        scroll-snap-align: none;
        scroll-snap-stop: normal;
        padding: var(--spacing-lg) 0;
    }

    .section > .container {
        max-height: none;
        overflow: visible;
    }

    /* ---- Headers ---- */
    .section-title {
        font-size: var(--font-size-xl);
        font-weight: 800;
        margin-bottom: var(--spacing-xs);
        position: relative;
        padding-bottom: var(--spacing-xs);
    }

    .section-title::after {
        content: '';
        display: block;
        width: 40px;
        height: 3px;
        background: var(--color-accent);
        margin: var(--spacing-xs) auto 0;
        border-radius: 2px;
    }

    .differentiators .section-title::after {
        background: white;
    }

    .section-subtitle {
        font-size: var(--font-size-sm);
        margin-bottom: var(--spacing-sm);
    }

    /* ---- Nav: always visible on mobile (no hero to trigger it) ---- */
    .nav.hidden {
        transform: translateY(0);
    }

    .nav-content {
        padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) var(--spacing-md);
        padding-top: 1.2rem;
        padding-bottom: 1.2rem;
    }

    .logo img {
        height: 50px;
    }

    /* ---- Hero: hidden on mobile ---- */
    .hero {
        display: none;
    }

    /* ---- Intro: first visible section, full-width ---- */
    .intro {
        padding-top: calc(70px + var(--spacing-lg));
    }

    .intro::before {
        display: none;
    }

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

    .intro-content h2 {
        font-size: var(--font-size-lg);
        font-weight: 800;
    }

    .intro-content p {
        font-size: var(--font-size-sm);
        line-height: 1.6;
    }

    .intro-buttons .btn {
        width: 100%;
    }

    /* ---- Services: horizontal swipe ---- */
    .services-grid {
        display: flex;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        gap: var(--spacing-sm);
        padding-bottom: var(--spacing-xs);
        scrollbar-width: none;
    }

    .services-grid::-webkit-scrollbar {
        display: none;
    }

    .service-card {
        flex: 0 0 85%;
        scroll-snap-align: center;
        min-height: auto;
    }

    .service-card h3 {
        font-size: var(--font-size-lg);
    }

    /* ---- Training: horizontal swipe ---- */
    .training-grid {
        display: flex;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        gap: var(--spacing-sm);
        padding-bottom: var(--spacing-xs);
        scrollbar-width: none;
    }

    .training-grid::-webkit-scrollbar {
        display: none;
    }

    .training-category {
        flex: 0 0 85%;
        scroll-snap-align: center;
    }

    /* ---- Differentiators: swipeable single card ---- */
    .diff-accordion {
        margin-top: var(--spacing-md);
    }

    .diff-nav {
        display: flex;
        flex-direction: row;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        gap: 0;
        scrollbar-width: none;
        padding-bottom: var(--spacing-sm);
    }

    .diff-nav::-webkit-scrollbar {
        display: none;
    }

    .diff-nav::before {
        display: none;
    }

    .diff-header {
        flex: 0 0 100%;
        scroll-snap-align: center;
        flex-direction: column;
        align-items: center;
        text-align: center;
        font-size: var(--font-size-base);
        padding: var(--spacing-lg) var(--spacing-md);
        background: none;
        border-radius: 0;
        border: none;
        gap: var(--spacing-sm);
    }

    .diff-header span:first-child {
        flex-direction: column;
        gap: 0;
    }

    .diff-header span:first-child br {
        display: inline;
    }

    .diff-bullet {
        display: none;
    }

    /* Pagination dots indicator */
    .diff-pagination {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 0;
        padding: var(--spacing-sm) 0;
    }

    .diff-pagination-dot {
        width: 10px;
        height: 10px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.3);
        border: 1px solid rgba(255, 255, 255, 0.5);
        flex-shrink: 0;
        transition: background 0.3s, box-shadow 0.3s;
    }

    .diff-pagination-dot.active {
        background: white;
        box-shadow: 0 0 8px rgba(255, 255, 255, 0.6);
    }

    .diff-pagination-line {
        height: 2px;
        width: 30px;
        background: rgba(255, 255, 255, 0.3);
        flex-shrink: 0;
    }

    .diff-body {
        margin-top: var(--spacing-sm);
        text-align: center;
    }

    .diff-body p {
        font-size: var(--font-size-sm);
    }

    /* ---- About: image as background ---- */
    .about {
        position: relative;
        background: url('https://images.unsplash.com/photo-1522071820081-009f0129c71c?w=600&q=80') center/cover no-repeat;
    }

    .about::before {
        content: '';
        position: absolute;
        inset: 0;
        background-color: var(--color-bg);
        opacity: 0.88;
    }

    [data-theme="dark"] .about::before {
        background-color: var(--color-bg);
        opacity: 0.92;
    }

    .about > .container {
        position: relative;
        z-index: 1;
    }

    .about-layout {
        grid-template-columns: 1fr;
    }

    .about-image {
        display: none;
    }

    .about-image-mobile {
        display: block;
        width: 100%;
        border-radius: var(--radius-lg);
        margin-bottom: var(--spacing-md);
    }

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

    .about-content h2 {
        font-size: var(--font-size-xl);
        font-weight: 800;
        text-align: center;
        position: relative;
        padding-bottom: var(--spacing-xs);
        margin-bottom: var(--spacing-xs);
    }

    .about-content h2::after {
        content: '';
        display: block;
        width: 40px;
        height: 3px;
        background: var(--color-accent);
        margin: var(--spacing-xs) auto 0;
        border-radius: 2px;
    }

    .about-content p {
        font-size: var(--font-size-sm);
    }

    /* ---- Contact ---- */
    .contact-content {
        grid-template-columns: 1fr;
    }

    /* ---- Footer ---- */
    .footer {
        min-height: auto;
        scroll-snap-align: none;
        scroll-snap-stop: normal;
        padding: var(--spacing-xl) 0 var(--spacing-lg);
    }

    .footer-content {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xl);
    }

    .footer-links {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--radius-lg);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    text-align: center;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
    background-color: transparent;
    color: white;
    border-color: white;
}

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

/* ============================================
   Introduction Section
   ============================================ */

.intro {
    background-color: var(--color-bg-secondary);
    position: relative;
}

.intro::before {
    content: '';
    position: absolute;
    top: -5%;
    bottom: 0%;
    left: 50%;
    right: -5%;
    background: url('images/images/hector-o-connor-5Nt6JUFuAQo-unsplash.jpg') center/cover no-repeat;
    opacity: 0.1;
    pointer-events: none;
    -webkit-mask-image: linear-gradient(to right, transparent 0%, black 15%);
    mask-image: linear-gradient(to right, transparent 0%, black 15%);
}

.intro > .container {
    position: relative;
    z-index: 1;
}

.intro-content {
    margin: 0;
}

@media (min-width: 769px) {
    .intro-content {
        max-width: 60%;
    }
}

.intro-content h2 {
    text-align: center;
}

.intro-content h2 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.intro-content p {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
    line-height: 1.5;
}

.intro-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

.btn-outline {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-border);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
}

.btn-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary-dark);
    background-color: var(--color-bg);
}

/* ============================================
   Services Section
   ============================================ */

.services {
    background-color: var(--color-bg);
    position: relative;
}

.services::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('images/images/morgan-von-gunten-G-YbAOA6qqQ-unsplash.jpg') center/cover no-repeat;
    opacity: 0.08;
    pointer-events: none;
}

.services > .container {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.services-grid {
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

@media (min-width: 769px) {
    .services-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: 1fr 1fr;
        flex: 1;
        min-height: 0;
    }
}

.service-card {
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    transition: all var(--transition-base);
    overflow: hidden;
    position: relative;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px var(--color-shadow);
    border-color: var(--color-primary);
}

.service-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
    position: absolute;
    bottom: var(--spacing-sm);
    right: var(--spacing-sm);
}

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

.service-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.service-card p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
    line-height: 1.4;
    font-size: var(--font-size-sm);
    text-align: left;
}

.service-list {
    list-style: none;
}

.service-list li {
    padding: 0.25rem 0;
    padding-left: var(--spacing-md);
    position: relative;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.3;
}

.service-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: 700;
    font-size: 0.9rem;
}

/* ============================================
   Training Section
   ============================================ */

.training {
    background-color: var(--color-bg-secondary);
    position: relative;
}

.training::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('images/images/pop-zebra-wp81DxKUd1E-unsplash.jpg') center/cover no-repeat;
    opacity: 0.12;
    pointer-events: none;
}

.training > .container {
    position: relative;
    z-index: 1;
}

.training-grid {
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

@media (min-width: 769px) {
    .training-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    }
}

.training-category {
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm);
    transition: all var(--transition-base);
}

.training-category:hover {
    border-color: var(--color-accent);
    box-shadow: 0 10px 30px var(--color-shadow);
}

.training-highlight {
    border: 2px solid var(--color-primary);
}

.training-category h3 {
    font-size: var(--font-size-base);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--color-primary);
    min-height: 3.2em;
    display: flex;
    align-items: flex-start;
}

.training-category ul li {
    padding: 0.2rem 0;
    color: var(--color-text-secondary);
    padding-left: var(--spacing-sm);
    position: relative;
    font-size: 0.95rem;
    line-height: 1.4;
}

.training-category ul li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: 700;
    font-size: 0.85rem;
}

/* ============================================
   Differentiators Section
   ============================================ */

.differentiators {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    color: white;
    position: relative;
}

.differentiators::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('images/images/danist-soh-8Gg2Ne_uTcM-unsplash.jpg') center/cover no-repeat;
    opacity: 0.12;
    pointer-events: none;
}

.differentiators > .container {
    position: relative;
    z-index: 1;
}

.differentiators .section-title {
    color: white;
}

.diff-accordion {
    margin: var(--spacing-lg) auto 0;
}

.diff-nav {
    display: flex;
    position: relative;
}

@media (min-width: 769px) {
    .diff-nav {
        align-items: stretch;
        justify-content: center;
        gap: 0;
    }

    .diff-header {
        flex: 1;
    }
}

.diff-nav::before {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    height: 2px;
    background: rgba(255, 255, 255, 0.3);
    pointer-events: none;
    bottom: calc(var(--spacing-sm) + 4px);
}

.diff-header {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: var(--spacing-sm) var(--spacing-xs);
    background: none;
    border: none;
    color: white;
    font-family: var(--font-sans);
    font-size: var(--font-size-lg);
    font-weight: 600;
    cursor: pointer;
    transition: opacity var(--transition-fast);
    text-align: center;
}

.diff-header span:first-child {
    display: flex;
    flex-direction: column;
    align-items: center;
    line-height: 1.3;
}

.diff-header:hover {
    opacity: 0.8;
}

.diff-bullet {
    width: 10px;
    height: 10px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    flex-shrink: 0;
    transition: all var(--transition-base);
    z-index: 1;
}

.diff-header.active .diff-bullet {
    background: white;
    box-shadow: 0 0 8px rgba(255, 255, 255, 0.6);
    transform: scale(1.3);
}

.diff-header.active {
    opacity: 1;
}

.diff-body {
    text-align: center;
    margin: var(--spacing-md) auto 0;
    min-height: 3em;
}

.diff-body p {
    opacity: 0.9;
    line-height: 1.6;
    font-size: var(--font-size-base);
}

/* ============================================
   About Section
   ============================================ */

.about {
    background-color: var(--color-bg);
}

@media (min-width: 769px) {
    .about-image-mobile {
        display: none;
    }
}

.about-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

@media (min-width: 769px) {
    .about-layout {
        grid-template-columns: 1fr 1fr;
    }
}

.about-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-lg);
}


@media (min-width: 769px) {
    .about-content {
        max-width: 800px;
    }
}

.about-content h2 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.about-content p {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
    line-height: 1.5;
}

.about-highlight {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-primary);
    padding: var(--spacing-sm);
    background-color: var(--color-bg-secondary);
    border-left: 3px solid var(--color-accent);
    border-radius: var(--radius-sm);
    margin-top: var(--spacing-sm);
}

/* ============================================
   Contact Section
   ============================================ */

.contact {
    background-color: var(--color-bg-secondary);
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('images/images/scott-blake-x-ghf9LjrVg-unsplash.jpg') center/cover no-repeat;
    opacity: 0.08;
    pointer-events: none;
}

.contact > .container {
    position: relative;
    z-index: 1;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    margin-top: var(--spacing-sm);
}

@media (min-width: 769px) {
    .contact-content {
        grid-template-columns: 1fr 1fr;
    }
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.contact-item {
    display: flex;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
}

.contact-item:hover {
    border-color: var(--color-primary);
    box-shadow: 0 10px 30px var(--color-shadow);
}

.contact-item svg {
    color: var(--color-accent);
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    margin-bottom: 0;
}

.contact-item a {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text);
}

.contact-item svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.contact-item a:hover {
    color: var(--color-primary);
}

.contact-form-container {
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
}

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

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--color-text);
    font-size: var(--font-size-sm);
}

.form-group input,
.form-group textarea {
    padding: 0.5rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    font-family: var(--font-sans);
    background-color: var(--color-bg-secondary);
    color: var(--color-text);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

[data-theme="dark"] .form-group input:focus,
[data-theme="dark"] .form-group textarea:focus {
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.form-group textarea {
    resize: vertical;
}

.contact-form .btn-primary {
    background-color: var(--color-primary);
    color: white;
    border: none;
    margin-top: var(--spacing-sm);
}

.contact-form .btn-primary:hover {
    background-color: var(--color-primary-dark);
}

/* ============================================
   Footer
   ============================================ */

.footer {
    background-color: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    scroll-snap-align: start;
    scroll-snap-stop: always;
}

.footer > .container {
    width: 100%;
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand {
    display: flex;
    align-items: center;
}

.footer-brand .logo img {
    height: auto;
    width: auto;
    max-height: 120px;
}

.footer-links {
    display: flex;
    gap: var(--spacing-2xl);
}

.footer-column {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-column h4 {
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.footer-column a {
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    text-align: center;
    color: var(--color-text-muted);
}


/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border-radius: var(--radius-sm);
}

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

/* ============================================
   Utility Classes
   ============================================ */

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

.mt-lg {
    margin-top: var(--spacing-lg);
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}