/* ============================================
   TREVCON ENGINEERING — DESIGN SYSTEM
   ============================================ */

:root {
    /* Brand Colors */
    --blue-50: #eff6ff;
    --blue-100: #dbeafe;
    --blue-200: #bfdbfe;
    --blue-300: #93c5fd;
    --blue-400: #60a5fa;
    --blue-500: #3b82f6;
    --blue-600: #2563eb;
    --blue-700: #1d4ed8;
    --blue-800: #1e40af;
    --blue-900: #1e3a8a;

    --cyan-400: #22d3ee;
    --cyan-500: #06b6d4;

    --emerald-400: #34d399;
    --emerald-500: #10b981;

    /* Neutrals */
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --gray-950: #020617;

    /* Semantic */
    --bg-primary: #ffffff;
    --bg-secondary: var(--gray-50);
    --bg-dark: var(--gray-950);
    --text-primary: var(--gray-900);
    --text-secondary: var(--gray-600);
    --text-muted: var(--gray-400);
    --accent: var(--blue-600);
    --accent-light: var(--blue-500);

    /* Spacing */
    --section-py: clamp(4rem, 8vw, 7rem);
    --container-px: clamp(1rem, 4vw, 2rem);

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Space Grotesk', var(--font-sans);

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.15);

    /* Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-2xl: 32px;

    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ============================================
   RESET & BASE
   ============================================ */

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul {
    list-style: none;
}

/* ============================================
   LAYOUT
   ============================================ */

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--container-px);
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 0.9375rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.3s var(--ease-out);
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: var(--blue-700);
    border-color: var(--blue-700);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.35);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--gray-300);
}

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

.btn-white {
    background: #fff;
    color: var(--gray-900);
    border-color: #fff;
}

.btn-white:hover {
    background: var(--gray-100);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.2);
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.25);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 0.9375rem 2rem;
    font-size: 1rem;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* ============================================
   NAVIGATION
   ============================================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 0.65rem 0;
    transition: all 0.4s var(--ease-out);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--gray-200);
    padding: 0.45rem 0;
    box-shadow: var(--shadow-sm);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    width: 30px;
    height: 30px;
    color: var(--accent);
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.175rem;
    font-weight: 700;
    color: var(--gray-900);
}

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

.nav-links {
    display: flex;
    gap: 1.75rem;
}

.nav-links a {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--gray-600);
    transition: color 0.3s;
    position: relative;
    letter-spacing: 0.01em;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--accent);
    transition: width 0.3s var(--ease-out);
}

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

.nav-links a:hover::after {
    width: 100%;
}

.nav-cta {
    padding: 0.5rem 1.1rem;
    font-size: 0.8125rem;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    z-index: 1001;
    position: relative;
}

.mobile-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--gray-700);
    border-radius: 2px;
    transition: all 0.3s var(--ease-out);
    transform-origin: center;
}

.mobile-toggle.active span {
    background: var(--gray-900);
}

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

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

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

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding: 7rem 0 4rem;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 20% 50%, rgba(37, 99, 235, 0.08) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 80% 20%, rgba(6, 182, 212, 0.06) 0%, transparent 50%),
        linear-gradient(180deg, var(--gray-50) 0%, #fff 40%, #fff 100%);
}

.hero-grid-overlay {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 0, 0, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 0, 0, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 70% 70% at 30% 50%, black, transparent);
}

.hero-container {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--blue-50);
    border: 1px solid var(--blue-200);
    border-radius: 100px;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--blue-700);
    margin-bottom: 1.5rem;
}

.badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--emerald-500);
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.6;
        transform: scale(1.3);
    }
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    color: var(--gray-900);
    margin-bottom: 1.5rem;
}

.gradient-text {
    background: linear-gradient(135deg, var(--blue-600) 0%, var(--cyan-500) 50%, var(--emerald-500) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--gray-600);
    max-width: 520px;
    margin-bottom: 2rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.hero-stat {
    display: flex;
    flex-direction: column;
}

.hero-stat-number {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--gray-900);
}

.hero-stat-suffix {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--accent);
}

.hero-stat-label {
    font-size: 0.8125rem;
    color: var(--gray-500);
    font-weight: 500;
}

.hero-stat-divider {
    width: 1px;
    height: 40px;
    background: var(--gray-200);
}

/* Hero Visual */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
}

.hero-image-wrapper {
    position: relative;
}

.hero-image-card {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
    width: 420px;
    height: 520px;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(15, 23, 42, 0.4) 100%);
}

.hero-floating-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1.25rem;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    animation: float 6s ease-in-out infinite;
}

.hero-floating-card strong {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--gray-900);
}

.hero-floating-card span {
    font-size: 0.75rem;
    color: var(--gray-500);
}

.card-top {
    top: 2rem;
    right: -1.5rem;
    animation-delay: -1s;
}

.card-bottom {
    bottom: 3rem;
    left: -2rem;
    animation-delay: -3s;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
}

.scroll-line {
    width: 2px;
    height: 40px;
    background: var(--gray-300);
    border-radius: 2px;
    position: relative;
    overflow: hidden;
}

.scroll-line::after {
    content: '';
    position: absolute;
    top: -100%;
    left: 0;
    width: 100%;
    height: 50%;
    background: var(--accent);
    animation: scroll-down 2s ease-in-out infinite;
}

@keyframes scroll-down {
    0% {
        top: -50%;
    }

    100% {
        top: 150%;
    }
}

/* ============================================
   SECTION HEADERS
   ============================================ */

.section-tag {
    display: inline-flex;
    align-items: center;
    font-size: 0.8125rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent);
    margin-bottom: 1rem;
    gap: 0.5rem;
}

.section-tag::before {
    content: '';
    display: inline-block;
    width: 24px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 3.5vw, 2.75rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--gray-900);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.0625rem;
    color: var(--gray-500);
    max-width: 560px;
    line-height: 1.7;
}

.section-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.section-header .section-subtitle {
    margin: 0 auto;
}

/* ============================================
   SERVICES SECTION
   ============================================ */

.services {
    padding: var(--section-py) 0;
    background: var(--bg-secondary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.service-card {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--gray-200);
    transition: all 0.4s var(--ease-out);
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: var(--blue-200);
}

.service-card-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.service-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--ease-out);
}

.service-card:hover .service-card-image img {
    transform: scale(1.08);
}

.service-card-image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 30%, rgba(15, 23, 42, 0.3) 100%);
}

.service-card-content {
    padding: 1.75rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.service-icon {
    width: 48px;
    height: 48px;
    color: var(--accent);
    margin-bottom: 1rem;
}

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

.service-title {
    font-family: var(--font-display);
    font-size: 1.1875rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.625rem;
}

.service-description {
    font-size: 0.9375rem;
    color: var(--gray-500);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.service-features {
    margin-bottom: 1.25rem;
    flex: 1;
}

.service-features li {
    position: relative;
    padding-left: 1.25rem;
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-bottom: 0.375rem;
}

.service-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.5em;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--emerald-500);
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--accent);
    transition: gap 0.3s var(--ease-out);
    margin-top: auto;
}

.service-link:hover {
    gap: 0.75rem;
}

/* All service cards are uniform */

/* ============================================
   ABOUT SECTION
   ============================================ */

.about {
    padding: var(--section-py) 0;
    background: var(--bg-primary);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-images {
    position: relative;
}

.about-image-main {
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    width: 85%;
}

.about-image-main img {
    width: 100%;
    height: 480px;
    object-fit: cover;
}

.about-image-secondary {
    position: absolute;
    bottom: -2rem;
    right: 0;
    width: 55%;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
    border: 4px solid #fff;
}

.about-image-secondary img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.about-experience-badge {
    position: absolute;
    top: -1rem;
    right: 2rem;
    background: var(--accent);
    color: #fff;
    padding: 1.25rem;
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: 0 8px 30px rgba(37, 99, 235, 0.4);
}

.experience-number {
    display: block;
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
}

.experience-text {
    font-size: 0.75rem;
    font-weight: 600;
    opacity: 0.9;
    line-height: 1.3;
}

.about-text {
    font-size: 1.0625rem;
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: 2rem;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.about-feature {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.about-feature-icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--blue-50);
    color: var(--accent);
    border-radius: var(--radius-md);
}

.about-feature h4 {
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.125rem;
}

.about-feature p {
    font-size: 0.875rem;
    color: var(--gray-500);
}

/* ============================================
   PROJECTS SECTION
   ============================================ */

.projects {
    padding: var(--section-py) 0;
    background: var(--bg-secondary);
}

.projects-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr;
    gap: 1.5rem;
}

.project-card {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    cursor: pointer;
    height: 380px;
}

.project-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--ease-out);
}

.project-card:hover img {
    transform: scale(1.08);
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 30%, rgba(15, 23, 42, 0.85) 100%);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    transition: background 0.4s;
}

.project-card:hover .project-overlay {
    background: linear-gradient(180deg, transparent 10%, rgba(15, 23, 42, 0.9) 100%);
}

.project-category {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--cyan-400);
    margin-bottom: 0.75rem;
    width: fit-content;
}

.project-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.375rem;
}

.project-desc {
    font-size: 0.875rem;
    color: var(--gray-300);
    line-height: 1.5;
}

/* ============================================
   BLOG SECTION
   ============================================ */

.blog {
    padding: var(--section-py) 0;
    background: var(--bg-primary);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.blog-card {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--gray-200);
    transition: all 0.4s var(--ease-out);
    display: flex;
    flex-direction: column;
}

.blog-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: var(--blue-200);
}

.blog-card-featured {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
}

.blog-card-featured .blog-card-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.blog-card-image {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.blog-card-featured .blog-card-image {
    height: 100%;
    min-height: 300px;
}

.blog-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--ease-out);
}

.blog-card:hover .blog-card-image img {
    transform: scale(1.06);
}

.blog-card-image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(15, 23, 42, 0.2) 100%);
}

.blog-category {
    position: absolute;
    top: 1rem;
    left: 1rem;
    display: inline-block;
    padding: 0.3rem 0.75rem;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent);
    letter-spacing: 0.02em;
}

.blog-card-content {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.blog-card-featured .blog-card-content {
    padding: 2rem 2.5rem;
}

.blog-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    font-size: 0.8125rem;
    color: var(--gray-400);
}

.blog-meta .blog-date {
    font-weight: 500;
}

.blog-meta .blog-read {
    position: relative;
    padding-left: 0.75rem;
}

.blog-meta .blog-read::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: var(--gray-400);
}

.blog-title {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1.35;
    margin-bottom: 0.625rem;
    transition: color 0.3s;
}

.blog-card-featured .blog-title {
    font-size: 1.375rem;
}

.blog-card:hover .blog-title {
    color: var(--accent);
}

.blog-excerpt {
    font-size: 0.9375rem;
    color: var(--gray-500);
    line-height: 1.6;
    margin-bottom: 1.25rem;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-card-featured .blog-excerpt {
    -webkit-line-clamp: 3;
}

.blog-link {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--accent);
    transition: gap 0.3s var(--ease-out);
    margin-top: auto;
}

.blog-link:hover {
    gap: 0.75rem;
}

/* ============================================
   ARTICLE PAGE
   ============================================ */

.article-hero {
    padding: 8rem 0 3rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--gray-200);
}

.article-hero .container {
    max-width: 820px;
}

.article-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    color: var(--gray-400);
    margin-bottom: 2rem;
}

.article-breadcrumb a {
    color: var(--accent);
    font-weight: 500;
    transition: color 0.3s;
}

.article-breadcrumb a:hover {
    color: var(--blue-700);
}

.article-breadcrumb svg {
    width: 14px;
    height: 14px;
    color: var(--gray-300);
}

.article-hero-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
}

.article-hero-category {
    display: inline-block;
    padding: 0.3rem 0.875rem;
    background: var(--blue-50);
    color: var(--accent);
    border-radius: 100px;
    font-size: 0.8125rem;
    font-weight: 600;
}

.article-hero-date,
.article-hero-read {
    font-size: 0.875rem;
    color: var(--gray-400);
}

.article-hero-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--gray-900);
    margin-bottom: 1.25rem;
}

.article-hero-summary {
    font-size: 1.125rem;
    color: var(--gray-500);
    line-height: 1.7;
}

.article-hero-image {
    margin-top: 3rem;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    max-width: 820px;
    margin-left: auto;
    margin-right: auto;
}

.article-hero-image img {
    width: 100%;
    height: 420px;
    object-fit: cover;
    display: block;
}

/* Article Body */
.article-body {
    padding: 4rem 0;
    background: var(--bg-primary);
}

.article-content {
    max-width: 720px;
    margin: 0 auto;
}

.article-content h2 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    letter-spacing: -0.01em;
}

.article-content h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-top: 2rem;
    margin-bottom: 0.75rem;
}

.article-content p {
    font-size: 1.0625rem;
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.article-content ul,
.article-content ol {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
}

.article-content li {
    font-size: 1.0625rem;
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: 0.5rem;
}

.article-content blockquote {
    margin: 2rem 0;
    padding: 1.5rem 2rem;
    background: var(--blue-50);
    border-left: 4px solid var(--accent);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.article-content blockquote p {
    color: var(--gray-700);
    font-weight: 500;
    margin-bottom: 0;
    font-style: italic;
}

.article-content .key-takeaway {
    margin: 2rem 0;
    padding: 1.5rem 2rem;
    background: var(--emerald-50, #ecfdf5);
    border: 1px solid var(--emerald-200, #a7f3d0);
    border-radius: var(--radius-lg);
}

.article-content .key-takeaway h4 {
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--emerald-600, #059669);
    margin-bottom: 0.75rem;
}

.article-content .key-takeaway p {
    color: var(--gray-700);
    margin-bottom: 0;
}

.article-content strong {
    color: var(--gray-800);
    font-weight: 600;
}

/* Article Footer / CTA */
.article-footer-cta {
    max-width: 720px;
    margin: 0 auto;
    padding: 2.5rem;
    background: var(--gray-50);
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
    text-align: center;
    margin-top: 1rem;
}

.article-footer-cta h3 {
    font-family: var(--font-display);
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.article-footer-cta p {
    font-size: 1rem;
    color: var(--gray-500);
    margin-bottom: 1.5rem;
}

/* Related Articles */
.related-articles {
    padding: 4rem 0;
    background: var(--bg-secondary);
}

.related-articles .section-header {
    margin-bottom: 2.5rem;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

@media (max-width: 1024px) {
    .related-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .article-hero {
        padding: 7rem 0 2rem;
    }

    .article-hero-image img {
        height: 260px;
    }

    .article-body {
        padding: 2.5rem 0;
    }

    .article-content {
        padding: 0 0.5rem;
    }

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

    .article-footer-cta {
        padding: 1.5rem;
    }
}

/* ============================================
   CTA BANNER
   ============================================ */

.cta-banner {
    position: relative;
    padding: var(--section-py) 0;
    overflow: hidden;
}

.cta-bg {
    position: absolute;
    inset: 0;
}

.cta-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--gray-900) 0%, var(--blue-900) 50%, var(--gray-900) 100%);
}

.cta-container {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 700px;
}

.cta-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    font-weight: 700;
    color: #fff;
    margin-bottom: 1rem;
}

.cta-text {
    font-size: 1.0625rem;
    color: var(--gray-300);
    line-height: 1.7;
    margin-bottom: 2rem;
}

.cta-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   CONTACT SECTION
   ============================================ */

.contact {
    padding: var(--section-py) 0;
    background: var(--bg-primary);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 4rem;
    align-items: start;
}

.contact-text {
    font-size: 1.0625rem;
    color: var(--gray-500);
    line-height: 1.7;
    margin-bottom: 2rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.contact-item-icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--blue-50);
    color: var(--accent);
    border-radius: var(--radius-md);
}

.contact-item strong {
    display: block;
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.125rem;
}

.contact-item p {
    font-size: 0.9375rem;
    color: var(--gray-500);
}

.contact-hours {
    padding: 1.25rem;
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
}

.contact-hours h4 {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.contact-hours p {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-bottom: 0.125rem;
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--bg-primary);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-2xl);
    padding: 2.5rem;
    box-shadow: var(--shadow-xl);
}

.form-title {
    font-family: var(--font-display);
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.375rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    color: var(--gray-900);
    background: var(--gray-50);
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius-md);
    transition: all 0.3s;
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-400);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    background: var(--gray-950);
    padding: 4rem 0 0;
    color: var(--gray-400);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 3rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer .logo-text {
    color: #fff;
}

.footer .logo-icon {
    color: var(--blue-400);
}

.footer-description {
    margin-top: 1rem;
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--gray-400);
}

.footer-links-group h4 {
    font-size: 0.8125rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--gray-300);
    margin-bottom: 1rem;
}

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

.footer-links-group ul a {
    font-size: 0.9375rem;
    color: var(--gray-400);
    transition: color 0.3s;
}

.footer-links-group ul a:hover {
    color: #fff;
}

.footer-social {
    display: flex;
    gap: 0.75rem;
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-md);
    color: var(--gray-400);
    transition: all 0.3s;
}

.footer-social a:hover {
    background: var(--accent);
    color: #fff;
    transform: translateY(-2px);
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem 0;
    font-size: 0.8125rem;
}

.footer-bottom-links {
    display: flex;
    gap: 1.5rem;
}

.footer-bottom-links a {
    color: var(--gray-500);
    transition: color 0.3s;
}

.footer-bottom-links a:hover {
    color: #fff;
}

/* ============================================
   ANIMATIONS
   ============================================ */

[data-animate] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

[data-animate="fade-left"] {
    transform: translateX(40px);
}

[data-animate="fade-right"] {
    transform: translateX(-40px);
}

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

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 3rem;
    }

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

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

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

    .hero-visual {
        order: -1;
    }

    .hero-image-card {
        width: 340px;
        height: 420px;
    }

    .card-top {
        right: -0.5rem;
    }

    .card-bottom {
        left: -0.5rem;
    }

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

    /* Services grid 2-col on tablet */

    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .about-images {
        max-width: 500px;
        margin: 0 auto;
    }

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

    .project-card-large {
        grid-column: span 2;
    }

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

    .blog-card-featured {
        grid-column: 1 / -1;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .nav-cta {
        display: none;
    }

    .nav-links {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 0;
        z-index: 1000;
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transition: opacity 0.35s var(--ease-out), visibility 0.35s;
    }

    .nav-links.mobile-open {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
    }

    .nav-links li {
        opacity: 0;
        transform: translateY(16px);
        transition: opacity 0.35s var(--ease-out), transform 0.35s var(--ease-out);
    }

    .nav-links.mobile-open li {
        opacity: 1;
        transform: translateY(0);
    }

    .nav-links.mobile-open li:nth-child(1) {
        transition-delay: 0.06s;
    }

    .nav-links.mobile-open li:nth-child(2) {
        transition-delay: 0.12s;
    }

    .nav-links.mobile-open li:nth-child(3) {
        transition-delay: 0.18s;
    }

    .nav-links.mobile-open li:nth-child(4) {
        transition-delay: 0.24s;
    }

    .nav-links.mobile-open li:nth-child(5) {
        transition-delay: 0.30s;
    }

    .nav-links a {
        font-size: 1.5rem !important;
        font-weight: 600 !important;
        color: var(--gray-900) !important;
        padding: 0.75rem 0;
        display: block;
    }

    .nav-links a::after {
        display: none;
    }

    .mobile-toggle {
        display: flex;
    }

    .hero {
        min-height: auto;
        padding: 7rem 0 3rem;
    }

    .hero-image-card {
        width: 280px;
        height: 350px;
    }

    .hero-floating-card {
        display: none;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }

    .hero-stat-divider {
        width: 40px;
        height: 1px;
    }

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

    /* Services single column on mobile */

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

    .project-card-large {
        grid-column: span 1;
    }

    .project-card {
        height: 280px;
    }

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

    .blog-card-featured {
        grid-template-columns: 1fr;
    }

    .blog-card-featured .blog-card-image {
        min-height: 200px;
        height: 200px;
    }

    .blog-card-featured .blog-card-content {
        padding: 1.5rem;
    }

    .cta-actions {
        flex-direction: column;
        align-items: center;
    }

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

    .contact-form-wrapper {
        padding: 1.5rem;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 0.75rem;
        text-align: center;
    }

    .hero-scroll-indicator {
        display: none;
    }

    .about-image-main img {
        height: 350px;
    }

    .about-image-secondary {
        bottom: -1rem;
    }

    .about-image-secondary img {
        height: 140px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

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

    .hero-image-card {
        width: 240px;
        height: 300px;
    }

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

    .about-experience-badge {
        right: 0;
        top: -0.5rem;
        padding: 0.875rem;
    }

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