/* Gürkan Yılmaz CMS - Custom Premium UI Stylesheet (Vanilla CSS) */

    /* 1. Global Reset & Theme Defaults */
    *,
    *::before,
    *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }

    :root {
        /* Transitions & Radii */
        --radius-large: 24px;
        --radius-medium: 16px;
        --radius-small: 8px;
        --transition-cinematic: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
        --transition-micro: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);

        /* Layout heights */
        --header-height: 80px;

        /* Semantic Theme Defaults (Mapping Light preferences) */
        --color-bg: var(--color-bg-light);
        --color-surface: var(--color-surface-light);
        --color-text: var(--color-text-light);
        --color-muted: var(--color-muted-light);
        --color-border: rgba(0, 0, 0, 0.08);
        --glass-bg: rgba(255, 255, 255, 0.7);
        --glass-border: rgba(0, 0, 0, 0.06);
        --color-shadow: rgba(0, 0, 0, 0.05);
        --color-glow: rgba(10, 92, 255, 0.15);
    }

    /* Dark Mode Overrides */
    html[data-theme="dark"] {
        --color-bg: #050607;
        --color-surface: #071A36;
        --color-text: #F7FAFC;
        --color-muted: #A9D8FF;
        --color-border: rgba(255, 255, 255, 0.08);
        --glass-bg: rgba(7, 26, 54, 0.65);
        --glass-border: rgba(255, 255, 255, 0.08);
        --color-shadow: rgba(0, 0, 0, 0.4);
        --color-glow: rgba(79, 167, 255, 0.25);
    }

    html {
        scroll-behavior: initial;
        /* Lenis handles smooth scrolling */
        overflow-x: hidden;
        font-size: 16px;
        zoom: 0.8;
    }

    body {
        background-color: var(--color-bg);
        color: var(--color-text);
        font-family: 'Inter', sans-serif;
        line-height: 1.65;
        -webkit-font-smoothing: antialiased;
        transition: background-color 0.5s ease, color 0.5s ease;
        overflow-x: hidden;
    }

    /* Skip link styling for WCAG AA compliance */
    .skip-link {
        position: absolute;
        top: -100px;
        left: 20px;
        background: var(--color-primary);
        color: #FFFFFF;
        padding: 10px 20px;
        border-radius: 8px;
        z-index: 9999;
        text-decoration: none;
        font-weight: 600;
        transition: top 0.2s ease;
    }

    .skip-link:focus {
        top: 20px;
    }

    /* 2. Custom Cursor */
    .cursor-follower {
        position: fixed;
        width: 20px;
        height: 20px;
        border-radius: 50%;
        background-color: var(--color-accent);
        pointer-events: none;
        z-index: 9999;
        mix-blend-mode: difference;
        transform: translate(-50%, -50%);
        transition: width 0.3s ease, height 0.3s ease, background-color 0.3s ease;
        opacity: 0.8;
        filter: drop-shadow(0 0 8px var(--color-primary));
    }

    .cursor-follower.hover-active {
        width: 50px;
        height: 50px;
        background-color: rgba(10, 92, 255, 0.3);
        mix-blend-mode: normal;
        border: 1px solid var(--color-accent);
    }

    /* Disable on touch devices */
    @media (hover: none) {
        .cursor-follower {
            display: none !important;
        }
    }

    /* 3. Typography & Spacing */
    h1,
    h2,
    h3,
    h4,
    h5,
    h6 {
        font-family: 'Manrope', sans-serif;
        font-weight: 800;
        color: var(--color-text);
        line-height: 1.15;
        letter-spacing: -0.02em;
    }

    p {
        font-weight: 400;
        color: var(--color-muted);
    }

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

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

    /* Layout Utilities */
    .section-padding {
        padding: clamp(4rem, 8vw, 8rem) 0;
    }

    .container {
        width: 100%;
        max-width: 1440px;
        margin: 0 auto;
        padding: 0 clamp(20px, 4vw, 60px);
    }

    /* 4. Header & Navbar Navigation */
    .navbar-wrapper {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: var(--header-height);
        z-index: 1000;
        border-bottom: 1px solid transparent;
        transition: var(--transition-cinematic);
    }

    .navbar-wrapper.scrolled {
        background-color: var(--glass-bg);
        backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--glass-border);
        height: 70px;
        box-shadow: 0 10px 30px var(--color-shadow);
    }

    .navbar-container {
        max-width: 1440px;
        height: 100%;
        margin: 0 auto;
        padding: 0 clamp(20px, 4vw, 60px);
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    /* Logo Box */
    .logo-box {
        display: flex;
        align-items: center;
        gap: 12px;
    }

    .logo-icon {
        position: relative;
        width: 40px;
        height: 40px;
        background: rgba(10, 92, 255, 0.1);
        border: 1px solid var(--color-border);
        border-radius: 12px;
        display: grid;
        place-items: center;
        color: var(--color-primary);
        font-weight: 800;
        overflow: hidden;
    }

    .logo-angle {
        position: absolute;
        width: 6px;
        height: 6px;
        border-color: var(--color-accent);
        border-style: solid;
        border-width: 0;
    }

    .logo-tl {
        top: 3px;
        left: 3px;
        border-top-width: 2px;
        border-l-width: 2px;
    }

    .logo-br {
        bottom: 3px;
        right: 3px;
        border-bottom-width: 2px;
        border-r-width: 2px;
    }

    .logo-text-inline {
        font-size: 1rem;
        letter-spacing: -0.05em;
    }

    .logo-title {
        font-size: 1.15rem;
        font-weight: 800;
        color: var(--color-text);
        letter-spacing: 0.05em;
    }

    .text-uppercase {
        text-transform: uppercase;
    }

    /* Nav Links */
    .nav-links {
        display: flex;
        align-items: center;
        gap: 32px;
    }

    @media (max-width: 992px) {
        .nav-links {
            display: none;
        }
    }

    .nav-item {
        font-size: 0.875rem;
        font-weight: 600;
        color: var(--color-text);
        text-transform: uppercase;
        letter-spacing: 0.05em;
        position: relative;
        padding: 8px 0;
        transition: color 0.25s ease;
    }

    .nav-item::after {
        content: '';
        position: absolute;
        bottom: -2px;
        left: 0;
        width: 100%;
        height: 2px;
        background-color: var(--color-primary);
        transform: scaleX(0);
        transform-origin: left center;
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .nav-item:hover::after,
    .nav-item.active::after {
        transform: scaleX(1);
    }

    .nav-item:hover,
    .nav-item.active {
        color: var(--color-primary);
    }

    .nav-actions {
        display: flex;
        align-items: center;
        gap: 16px;
    }

    .nav-action-btn {
        background: transparent;
        border: 1px solid var(--color-border);
        width: 40px;
        height: 40px;
        border-radius: 50%;
        display: grid;
        place-items: center;
        color: var(--color-text);
        cursor: pointer;
        transition: var(--transition-micro);
    }

    .nav-action-btn:hover {
        border-color: var(--color-primary);
        color: var(--color-primary);
        transform: scale(1.05);
    }

    .nav-action-btn svg {
        width: 18px;
        height: 18px;
    }

    /* Icons toggle based on theme attributes */
    html[data-theme="dark"] .icon-sun {
        display: block;
    }

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

    html[data-theme="light"] .icon-sun {
        display: none;
    }

    html[data-theme="light"] .icon-moon {
        display: block;
    }

    /* Language Switcher */
    .lang-switcher {
        font-size: 0.85rem;
        font-weight: 600;
        display: flex;
        align-items: center;
        gap: 6px;
    }

    .lang-active {
        color: var(--color-primary);
    }

    .lang-divider {
        color: var(--color-border);
    }

    .lang-link {
        color: var(--color-text);
    }

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

    /* CV Button Magnetic */
    .cv-btn {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        border: 1px solid var(--color-primary);
        background: transparent;
        padding: 10px 20px;
        border-radius: var(--radius-small);
        font-size: 0.8rem;
        font-weight: 700;
        text-transform: uppercase;
        color: var(--color-primary);
        transition: var(--transition-micro);
    }

    .cv-btn:hover {
        background: var(--color-primary);
        color: #FFFFFF;
        box-shadow: 0 0 20px var(--color-glow);
    }

    .cv-btn svg {
        width: 16px;
        height: 16px;
    }

    @media (max-width: 768px) {
        .hidden-md {
            display: none !important;
        }
    }

    .mobile-menu-btn {
        display: none;
        background: transparent;
        border: 1px solid var(--color-border);
        width: 40px;
        height: 40px;
        border-radius: 8px;
        place-items: center;
        color: var(--color-text);
        cursor: pointer;
    }

    .mobile-menu-btn svg {
        width: 20px;
        height: 20px;
    }

    @media (max-width: 992px) {
        .mobile-menu-btn {
            display: grid;
        }
    }

    /* 5. Mobile Drawer Overlay */
    .mobile-menu-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.6);
        backdrop-filter: blur(10px);
        z-index: 1100;
        display: flex;
        justify-content: flex-end;
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.4s ease;
    }

    .mobile-menu-overlay.open {
        opacity: 1;
        pointer-events: auto;
    }

    .mobile-menu-drawer {
        width: 320px;
        height: 100%;
        background: var(--color-surface);
        border-left: 1px solid var(--color-border);
        padding: 30px;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        transform: translateX(100%);
        transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .mobile-menu-overlay.open .mobile-menu-drawer {
        transform: translateX(0);
    }

    .mobile-menu-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .mobile-menu-title {
        font-family: 'Manrope', sans-serif;
        font-weight: 800;
        font-size: 1.25rem;
    }

    .mobile-close-btn {
        background: transparent;
        border: 0;
        color: var(--color-text);
        cursor: pointer;
    }

    .mobile-close-btn svg {
        width: 24px;
        height: 24px;
    }

    .mobile-nav-links {
        display: flex;
        flex-direction: column;
        gap: 24px;
        margin: 40px 0;
    }

    .mobile-nav-item {
        font-size: 1.25rem;
        font-weight: 700;
        color: var(--color-text);
    }

    .mobile-nav-item:hover {
        color: var(--color-primary);
    }

    /* 6. Cinematic Hero Section */
    .hero-stage {
        position: relative;
        width: 100%;
        min-height: 100vh;
        display: flex;
        align-items: center;
        background-color: var(--color-bg);
        overflow: hidden;
        padding-top: calc(var(--header-height) + 40px);
    }

    @media (max-width: 992px) {
        .hero-stage {
            min-height: auto;
            align-items: flex-start;
            padding-top: calc(var(--header-height) + 24px);
            padding-bottom: 40px;
        }
    }

    /* Backgroundglow meshes (Lighthouse performance safe) */
    .hero-glow-blob {
        position: absolute;
        width: 600px;
        height: 600px;
        background: radial-gradient(circle, var(--color-glow) 0%, transparent 70%);
        border-radius: 50%;
        pointer-events: none;
        z-index: 1;
        filter: blur(40px);
    }

    .blob-1 {
        top: -200px;
        right: -100px;
    }

    .blob-2 {
        bottom: -200px;
        left: -100px;
    }

    .hero-grid {
        position: relative;
        z-index: 2;
        display: grid;
        grid-template-columns: 0.85fr 1.15fr;
        gap: 40px;
        align-items: center;
        width: 100%;
    }

    @media (max-width: 992px) {
        .hero-grid {
            grid-template-columns: 1fr;
            text-align: center;
            padding-top: 16px;
            padding-bottom: 0;
            gap: 16px;
        }
    }

    .hero-badge-box {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        background: rgba(10, 92, 255, 0.08);
        border: 1px solid rgba(10, 92, 255, 0.15);
        padding: 8px 16px;
        border-radius: 30px;
        margin-bottom: 24px;
    }

    .hero-badge-dot {
        width: 8px;
        height: 8px;
        background-color: var(--color-primary);
        border-radius: 50%;
        box-shadow: 0 0 10px var(--color-primary);
    }

    .hero-badge-text {
        font-size: 0.75rem;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 0.15em;
        color: var(--color-primary);
    }

    .hero-title {
        font-size: clamp(2.5rem, 6vw, 4.5rem);
        line-height: 1.08;
        margin-bottom: 24px;
    }

    .hero-title-gradient,
    .hero-title-gradient .word,
    .hero-title-gradient .char {
        background: linear-gradient(135deg, #4FA7FF 0%, #FFFFFF 100%);
        -webkit-background-clip: text !important;
        background-clip: text !important;
        -webkit-text-fill-color: transparent !important;
        color: transparent !important;
        display: inline-block;
    }
    
    html[data-theme="light"] .hero-title-gradient,
    html[data-theme="light"] .hero-title-gradient .word,
    html[data-theme="light"] .hero-title-gradient .char {
        background: linear-gradient(135deg, var(--color-primary) 0%, #0070E0 100%);
        -webkit-background-clip: text !important;
        background-clip: text !important;
        -webkit-text-fill-color: transparent !important;
        color: transparent !important;
    }

    .hero-subtitle {
        font-size: clamp(1rem, 1.2vw, 1.25rem);
        margin-bottom: 40px;
        max-width: 600px;
    }

    @media (max-width: 992px) {
        .hero-subtitle {
            margin: 0 auto 40px;
        }
    }

    .hero-ctas {
        display: flex;
        gap: 16px;
        align-items: center;
        margin-bottom: 60px;
    }

    @media (max-width: 992px) {
        .hero-ctas {
            justify-content: center;
        }
    }

    @media (max-width: 480px) {
        .hero-ctas {
            flex-direction: column;
            width: 100%;
        }

        .hero-ctas .btn {
            width: 100%;
        }
    }

    /* Call To Action Buttons */
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 12px;
        padding: 16px 32px;
        border-radius: var(--radius-medium);
        font-size: 0.9rem;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 0.05em;
        transition: var(--transition-micro);
        cursor: pointer;
    }

    .btn-primary {
        background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
        color: #FFFFFF;
        border: 0;
        box-shadow: 0 8px 30px var(--color-glow);
    }

    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 12px 35px var(--color-glow);
    }

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

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

    /* Stats Row */
    .hero-stats-row {
        display: grid;
        grid-template-columns: repeat(5, 1fr);
        gap: 20px;
        border-top: 1px solid var(--color-border);
        padding-top: 40px;
    }

    @media (max-width: 1024px) {
        .hero-stats-row {
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }
    }

    @media (max-width: 768px) {
        .hero-stats-row {
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
    }

    @media (max-width: 480px) {
        .hero-stats-row {
            grid-template-columns: 1fr;
            gap: 15px;
        }
    }

    .stat-card {
        text-align: left;
    }

    @media (max-width: 992px) {
        .stat-card {
            text-align: center;
        }
    }

    .stat-number {
        font-family: 'Manrope', sans-serif;
        font-size: clamp(1.75rem, 3vw, 2.5rem);
        font-weight: 800;
        color: var(--color-primary);
        line-height: 1;
        margin-bottom: 8px;
    }

    .stat-label {
        font-size: 0.75rem;
        color: var(--color-muted);
        line-height: 1.4;
    }

    /* Hero Signature Animation Panel */
    .hero-signature-box {
        display: flex;
        justify-content: center;
        align-items: center;
        position: relative;
        width: 100%;
        aspect-ratio: 1;
        max-width: 450px;
        margin: 0 auto;
    }

    /* On mobile the square aspect-ratio creates a huge empty block — shrink to fit */
    @media (max-width: 992px) {
        .hero-signature-box {
            aspect-ratio: auto;
            padding: 24px 16px;
            max-width: 100%;
        }
    }

    .signature-svg-container {
        width: 100%;
        height: 100%;
        filter: drop-shadow(0 0 12px var(--color-glow));
        opacity: 0;
        transform: scale(0.9);
    }

    @media (max-width: 992px) {
        .signature-svg-container {
            height: auto;
            min-height: 100px;
        }
    }

    .signature-text {
        font-family: 'Pacifico', cursive;
        font-size: clamp(2.5rem, 5.5vw, 4rem);
        font-weight: 400;
        fill: rgba(10, 92, 255, 0);
        /* Transparent initially */
        stroke: var(--color-primary);
        stroke-width: 1.5px;
        stroke-linecap: round;
        stroke-linejoin: round;
        filter: drop-shadow(0 0 8px var(--color-glow));
        transition: fill 0.8s ease;
    }

    @media (max-width: 992px) {
        .signature-text {
            font-size: 9vw;
        }
    }

    /* 7. About Section */
    .about-grid {
        display: grid;
        grid-template-columns: 0.9fr 1.1fr;
        gap: 60px;
        align-items: center;
    }

    @media (max-width: 992px) {
        .about-grid {
            grid-template-columns: 1fr;
        }
    }

    .about-features {
        display: grid;
        grid-template-columns: 1fr;
        gap: 30px;
        margin-top: 40px;
    }

    .about-feature-card {
        background: var(--color-surface);
        border: 1px solid var(--color-border);
        padding: 30px;
        border-radius: var(--radius-medium);
        transition: var(--transition-cinematic);
        box-shadow: 0 10px 30px var(--color-shadow);
    }

    .about-feature-card:hover {
        transform: translateY(-5px);
        border-color: var(--color-primary);
        box-shadow: 0 15px 35px var(--color-shadow);
    }

    .about-card-title {
        font-size: 1.25rem;
        font-weight: 700;
        margin-bottom: 12px;
        display: flex;
        align-items: center;
        gap: 12px;
    }

    .about-card-title svg {
        width: 20px;
        height: 20px;
        color: var(--color-primary);
    }

    /* Timeline Components */
    .timeline-box {
        margin-top: 40px;
        position: relative;
        border-left: 2px solid var(--color-border);
        padding-left: 30px;
        display: flex;
        flex-direction: column;
        gap: 40px;
    }

    .timeline-item {
        position: relative;
    }

    .timeline-dot {
        position: absolute;
        left: -41px;
        top: 6px;
        width: 20px;
        height: 20px;
        border-radius: 50%;
        background-color: var(--color-bg);
        border: 4px solid var(--color-primary);
        box-shadow: 0 0 10px var(--color-glow);
    }

    .timeline-date {
        font-size: 0.85rem;
        font-weight: 700;
        color: var(--color-primary);
        margin-bottom: 8px;
        text-transform: uppercase;
    }

    .timeline-title {
        font-size: 1.25rem;
        font-weight: 800;
        margin-bottom: 6px;
    }

    .timeline-subtitle {
        font-size: 0.95rem;
        font-weight: 600;
        color: var(--color-text);
        margin-bottom: 12px;
    }

    .timeline-desc {
        font-size: 0.9rem;
        line-height: 1.6;
    }

    /* 8. Services Grid */
    .grid-head {
        text-align: center;
        margin-bottom: 60px;
    }

    .grid-sub {
        font-size: 1rem;
        max-width: 600px;
        margin: 12px auto 0;
    }

    .services-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 30px;
    }

    @media (max-width: 992px) {
        .services-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }

    @media (max-width: 768px) {
        .services-grid {
            grid-template-columns: 1fr;
        }
    }

    .service-card {
        background: var(--color-surface);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-large);
        padding: 40px;
        box-shadow: 0 10px 30px var(--color-shadow);
        transition: var(--transition-cinematic);
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        height: 100%;
    }

    .service-card:hover {
        transform: translateY(-8px);
        border-color: var(--color-primary);
        box-shadow: 0 20px 40px var(--color-shadow);
    }

    .service-icon {
        width: 60px;
        height: 60px;
        background: rgba(10, 92, 255, 0.08);
        border-radius: var(--radius-medium);
        display: grid;
        place-items: center;
        color: var(--color-primary);
        margin-bottom: 30px;
        transition: var(--transition-micro);
    }

    .service-card:hover .service-icon {
        background: var(--color-primary);
        color: #FFFFFF;
        transform: scale(1.05);
    }

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

    .service-title {
        font-size: 1.35rem;
        margin-bottom: 16px;
    }

    .service-desc {
        font-size: 0.95rem;
        line-height: 1.6;
        margin-bottom: 24px;
    }

    /* 9. Projects Grid */
    .projects-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }

    @media (max-width: 768px) {
        .projects-grid {
            grid-template-columns: 1fr;
        }
    }

    .project-card {
        background: var(--color-surface);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-large);
        overflow: hidden;
        box-shadow: 0 10px 30px var(--color-shadow);
        transition: var(--transition-cinematic);
    }

    .project-card:hover {
        transform: translateY(-6px);
        border-color: var(--color-primary);
        box-shadow: 0 20px 45px var(--color-shadow);
    }

    .project-img-box {
        position: relative;
        width: 100%;
        aspect-ratio: 1.8;
        background-color: var(--color-dark-navy);
        overflow: hidden;
        border-bottom: 1px solid var(--color-border);
    }

    .project-img {
        width: 100%;
        height: 100%;
        object-cover: fit;
        transition: transform 0.8s ease;
    }

    .project-card:hover .project-img {
        transform: scale(1.05);
    }

    .project-content {
        padding: 30px;
    }

    .project-cat {
        font-size: 0.75rem;
        font-weight: 700;
        color: var(--color-primary);
        text-transform: uppercase;
        letter-spacing: 0.1em;
        margin-bottom: 12px;
    }

    .project-title {
        font-size: 1.5rem;
        margin-bottom: 16px;
    }

    .project-desc {
        font-size: 0.95rem;
        line-height: 1.6;
        margin-bottom: 24px;
    }

    /* 10. Articles Grid */
    .articles-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
    }

    @media (max-width: 1200px) {
        .articles-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }

    @media (max-width: 768px) {
        .articles-grid {
            grid-template-columns: 1fr;
        }
    }

    .article-card {
        background: var(--color-surface);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-medium);
        overflow: hidden;
        box-shadow: 0 8px 24px var(--color-shadow);
        transition: var(--transition-cinematic);
        display: flex;
        flex-direction: column;
    }

    .article-card:hover {
        transform: translateY(-5px);
        border-color: var(--color-primary);
        box-shadow: 0 15px 35px var(--color-shadow);
    }

    .article-img-box {
        width: 100%;
        aspect-ratio: 1.7;
        background-color: var(--color-dark-navy);
        overflow: hidden;
        border-bottom: 1px solid var(--color-border);
    }

    .article-img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.8s ease;
    }

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

    .article-content {
        padding: 24px;
        display: flex;
        flex-direction: column;
        flex: 1;
    }

    .article-meta {
        font-size: 0.75rem;
        color: var(--color-muted);
        display: flex;
        align-items: center;
        gap: 8px;
        margin-bottom: 12px;
    }

    .article-title {
        font-size: 1.15rem;
        margin-bottom: 12px;
        line-height: 1.35;
    }

    .article-summary {
        font-size: 0.85rem;
        line-height: 1.5;
        color: var(--color-muted);
        margin-bottom: 20px;
        flex: 1;
    }

    /* 11. Contact Section Split */
    .contact-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 60px;
    }

    @media (max-width: 992px) {
        .contact-grid {
            grid-template-columns: 1fr;
        }
    }

    .contact-info-panel {
        display: flex;
        flex-direction: column;
        gap: 30px;
    }

    .contact-map-box {
        width: 100%;
        height: 350px;
        border-radius: var(--radius-large);
        overflow: hidden;
        border: 1px solid var(--color-border);
        box-shadow: 0 10px 30px var(--color-shadow);
    }

    .contact-map-box iframe {
        width: 100%;
        height: 100%;
        border: 0;
    }

    /* Contact Form controls */
    .contact-form-box {
        background: var(--color-surface);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-large);
        padding: 40px;
        box-shadow: 0 10px 30px var(--color-shadow);
    }

    .form-group {
        margin-bottom: 24px;
    }

    .form-label {
        display: block;
        font-size: 0.85rem;
        font-weight: 700;
        margin-bottom: 8px;
        color: var(--color-text);
    }

    .form-control {
        width: 100%;
        background: var(--color-bg);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-small);
        padding: 14px 18px;
        font-family: inherit;
        font-size: 0.95rem;
        color: var(--color-text);
        transition: var(--transition-micro);
    }

    .form-control:focus {
        outline: none;
        border-color: var(--color-primary);
        box-shadow: 0 0 0 3px var(--color-glow);
    }

    textarea.form-control {
        resize: vertical;
        min-height: 150px;
    }

    /* Success / Error notification fields */
    .form-alert {
        padding: 16px;
        border-radius: var(--radius-small);
        font-size: 0.9rem;
        font-weight: 600;
        margin-bottom: 24px;
        display: none;
    }

    .alert-success {
        background: rgba(0, 200, 83, 0.1);
        color: var(--color-success);
        border: 1px solid rgba(0, 200, 83, 0.2);
    }

    .alert-danger {
        background: rgba(255, 59, 48, 0.1);
        color: var(--color-error);
        border: 1px solid rgba(255, 59, 48, 0.2);
    }

    /* 12. Dynamic Footer Elements */
    .footer-wrapper {
        background-color: var(--color-dark-navy);
        color: #A9D8FF;
        border-top: 1px solid rgba(255, 255, 255, 0.05);
        padding: 80px 0 40px;
    }

    html[data-theme="light"] .footer-wrapper {
        background-color: #071A36;
        color: #A9D8FF;
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 1.5fr 1fr 1fr 1fr;
        gap: 40px;
        margin-bottom: 60px;
    }

    @media (max-width: 992px) {
        .footer-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }

    @media (max-width: 768px) {
        .footer-grid {
            grid-template-columns: 1fr;
        }
    }

    .footer-logo .logo-title {
        color: #FFFFFF;
    }

    .footer-desc {
        margin-top: 20px;
        font-size: 0.9rem;
        color: #A9D8FF;
        max-width: 320px;
    }

    .footer-socials {
        display: flex;
        gap: 12px;
        margin-top: 24px;
    }

    .social-icon-btn {
        width: 38px;
        height: 38px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.05);
        border: 1px solid rgba(255, 255, 255, 0.1);
        display: grid;
        place-items: center;
        color: #FFFFFF;
    }

    .social-icon-btn:hover {
        background: var(--color-primary);
        transform: scale(1.05);
    }

    .social-icon-btn svg {
        width: 16px;
        height: 16px;
    }

    .footer-col-title {
        font-size: 1.1rem;
        color: #FFFFFF;
        margin-bottom: 24px;
    }

    .footer-links-list,
    .footer-contact-list {
        list-style: none;
        display: flex;
        flex-direction: column;
        gap: 12px;
    }

    .footer-links-list a {
        color: #A9D8FF;
        font-size: 0.9rem;
    }

    .footer-links-list a:hover {
        color: #FFFFFF;
    }

    .footer-contact-list li {
        display: flex;
        align-items: center;
        gap: 12px;
        font-size: 0.9rem;
    }

    .footer-contact-icon {
        width: 16px;
        height: 16px;
        color: var(--color-accent);
    }

    .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        padding-top: 30px;
        text-align: center;
        font-size: 0.8rem;
    }

    /* 13. Back to Top Button */
    .back-to-top-btn {
        position: fixed;
        bottom: 30px;
        right: -100px;
        width: 50px;
        height: 50px;
        border-radius: 50%;
        background-color: var(--glass-bg);
        border: 1px solid var(--glass-border);
        backdrop-filter: blur(10px);
        color: var(--color-primary);
        box-shadow: 0 10px 30px var(--color-shadow);
        display: grid;
        place-items: center;
        cursor: pointer;
        z-index: 900;
        transition: right 0.5s ease, transform 0.3s ease;
    }

    .back-to-top-btn.visible {
        right: 30px;
    }

    .back-to-top-btn:hover {
        transform: translateY(-5px);
        background: var(--color-primary);
        color: #FFFFFF;
    }

    .back-to-top-btn svg {
        width: 20px;
        height: 20px;
    }

    /* 14. Fullscreen Search Overlay */
    .search-overlay-wrapper {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: var(--glass-bg);
        backdrop-filter: blur(25px);
        z-index: 1500;
        display: flex;
        justify-content: center;
        padding-top: 12vh;
    }

    .search-overlay-container {
        width: 100%;
        max-width: 800px;
        padding: 0 20px;
    }

    .search-overlay-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 30px;
    }

    .search-overlay-title {
        font-size: 1.5rem;
    }

    .search-close-btn {
        background: transparent;
        border: 0;
        color: var(--color-text);
        cursor: pointer;
        width: 40px;
        height: 40px;
        border-radius: 50%;
        border: 1px solid var(--color-border);
        display: grid;
        place-items: center;
    }

    .search-close-btn svg {
        width: 20px;
        height: 20px;
    }

    .search-input-box {
        position: relative;
        width: 100%;
        margin-bottom: 30px;
    }

    #search-input {
        width: 100%;
        background: var(--color-surface);
        border: 2px solid var(--color-border);
        border-radius: var(--radius-medium);
        padding: 20px 24px 20px 60px;
        font-size: 1.25rem;
        font-family: inherit;
        color: var(--color-text);
        box-shadow: 0 15px 35px var(--color-shadow);
    }

    #search-input:focus {
        outline: none;
        border-color: var(--color-primary);
    }

    .search-input-icon {
        position: absolute;
        left: 20px;
        top: 50%;
        transform: translateY(-50%);
        width: 24px;
        height: 24px;
        color: var(--color-muted);
    }

    .search-filter-tabs {
        display: flex;
        gap: 12px;
        margin-bottom: 40px;
        flex-wrap: wrap;
    }

    .search-tab {
        background: var(--color-surface);
        border: 1px solid var(--color-border);
        padding: 10px 20px;
        border-radius: 30px;
        font-size: 0.85rem;
        font-weight: 700;
        color: var(--color-text);
        cursor: pointer;
        transition: var(--transition-micro);
    }

    .search-tab.active,
    .search-tab:hover {
        background-color: var(--color-primary);
        color: #FFFFFF;
        border-color: var(--color-primary);
    }

    .search-results-box {
        max-height: 50vh;
        overflow-y: auto;
        display: flex;
        flex-direction: column;
        gap: 16px;
        padding-bottom: 40px;
    }

    /* Suggestion tag styling */
    .search-suggestions-list {
        display: flex;
        gap: 10px;
        margin-top: 15px;
    }

    .suggestion-item {
        background: rgba(10, 92, 255, 0.08);
        border: 0;
        padding: 8px 16px;
        border-radius: 20px;
        color: var(--color-primary);
        cursor: pointer;
        font-weight: 600;
    }

    /* Dynamic search items inside results */
    .search-result-item {
        background: var(--color-surface);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-medium);
        padding: 20px;
        display: block;
    }

    .search-result-item:hover {
        border-color: var(--color-primary);
        box-shadow: 0 10px 25px var(--color-shadow);
    }

    .search-result-type {
        font-size: 0.7rem;
        font-weight: 700;
        text-transform: uppercase;
        color: var(--color-primary);
        margin-bottom: 6px;
    }

    .search-result-title {
        font-size: 1.15rem;
        margin-bottom: 6px;
    }

    .search-result-desc {
        font-size: 0.85rem;
        color: var(--color-muted);
    }

    /* 15. GDPR Cookie Consent Banner */
    .cookie-banner-wrapper {
        position: fixed;
        bottom: 30px;
        left: 30px;
        max-width: 480px;
        background: var(--color-surface);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-large);
        box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
        padding: 30px;
        z-index: 2000;
    }

    @media (max-width: 576px) {
        .cookie-banner-wrapper {
            left: 15px;
            right: 15px;
            bottom: 15px;
            max-width: none;
        }
    }

    .cookie-title {
        font-size: 1.25rem;
        margin-bottom: 12px;
    }

    .cookie-text {
        font-size: 0.85rem;
        line-height: 1.5;
        margin-bottom: 20px;
    }

    .cookie-preference-settings {
        margin-bottom: 20px;
        display: flex;
        flex-direction: column;
        gap: 12px;
    }

    .cookie-option {
        display: flex;
        align-items: flex-start;
    }

    .cookie-option-label {
        display: flex;
        gap: 12px;
        align-items: flex-start;
        font-size: 0.8rem;
        cursor: pointer;
    }

    .cookie-option-label input {
        margin-top: 3px;
    }

    .cookie-actions {
        display: flex;
        gap: 10px;
        flex-wrap: wrap;
    }

    .cookie-btn {
        padding: 10px 18px;
        border-radius: 8px;
        font-size: 0.8rem;
        font-weight: 700;
        cursor: pointer;
    }

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

    .btn-solid {
        background: var(--color-primary);
        border: 0;
        color: #FFFFFF;
    }

    /* 16. Details Page layout (Project & Article Detail) */
    .article-detail-wrapper {
        padding-top: calc(var(--header-height) + 40px);
    }

    .article-detail-header {
        text-align: center;
        max-width: 800px;
        margin: 0 auto 40px;
    }

    .article-detail-cat {
        font-size: 0.8rem;
        font-weight: 700;
        color: var(--color-primary);
        text-transform: uppercase;
        letter-spacing: 0.1em;
        margin-bottom: 16px;
    }

    .article-detail-title {
        font-size: clamp(2rem, 4vw, 3.5rem);
        margin-bottom: 24px;
    }

    .article-detail-meta {
        font-size: 0.85rem;
        color: var(--color-muted);
        display: flex;
        justify-content: center;
        gap: 20px;
    }

    .article-cover-box {
        width: 100%;
        aspect-ratio: 2;
        max-height: 500px;
        border-radius: var(--radius-large);
        overflow: hidden;
        border: 1px solid var(--color-border);
        box-shadow: 0 15px 40px var(--color-shadow);
        margin-bottom: 60px;
    }

    .article-cover-box img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .article-detail-grid {
        display: grid;
        grid-template-columns: 1fr 3fr;
        gap: 60px;
    }

    @media (max-width: 992px) {
        .article-detail-grid {
            grid-template-columns: 1fr;
        }
    }

    .article-sidebar {
        position: sticky;
        top: 100px;
        height: fit-content;
    }

    @media (max-width: 992px) {
        .article-sidebar {
            position: relative;
            top: 0;
        }
    }

    .sidebar-title {
        font-size: 1rem;
        font-weight: 800;
        text-transform: uppercase;
        letter-spacing: 0.05em;
        margin-bottom: 16px;
        border-bottom: 2px solid var(--color-primary);
        padding-bottom: 8px;
        display: inline-block;
    }

    .toc-list {
        list-style: none;
        display: flex;
        flex-direction: column;
        gap: 12px;
    }

    .toc-link {
        font-size: 0.9rem;
        color: var(--color-muted);
        font-weight: 500;
    }

    .toc-link.active,
    .toc-link:hover {
        color: var(--color-primary);
    }

    .article-body-content {
        font-size: 1.05rem;
        line-height: 1.8;
    }

    .article-body-content p {
        margin-bottom: 24px;
        color: var(--color-text);
    }

    .article-body-content h2,
    .article-body-content h3 {
        margin: 40px 0 20px;
    }

    /* Quote blocks */
    blockquote {
        border-left: 4px solid var(--color-primary);
        padding-left: 24px;
        font-style: italic;
        font-size: 1.25rem;
        color: var(--color-muted);
        margin: 30px 0;
    }

    /* Code highlighting styles */
    pre {
        background-color: var(--color-dark-navy);
        color: #A9D8FF;
        padding: 24px;
        border-radius: var(--radius-small);
        overflow-x: auto;
        font-size: 0.9rem;
        margin: 30px 0;
    }

    code {
        font-family: Consolas, Monaco, 'Andale Mono', monospace;
    }

    /* Tags display in article detail */
    .article-detail-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-top: 40px;
        border-top: 1px solid var(--color-border);
        padding-top: 30px;
    }

    .tag-badge {
        background: rgba(10, 92, 255, 0.08);
        border: 1px solid rgba(10, 92, 255, 0.15);
        padding: 8px 16px;
        border-radius: 20px;
        font-size: 0.8rem;
        font-weight: 600;
        color: var(--color-primary);
    }

    /* Related articles */
    .related-box {
        margin-top: 80px;
        border-top: 1px solid var(--color-border);
        padding-top: 60px;
    }

    .related-title {
        margin-bottom: 40px;
    }

    /* 17. Reading progress bar indicator */
    .reading-progress-container {
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100%;
        height: 4px;
        background-color: transparent;
        z-index: 1001;
    }

    .reading-progress-bar {
        width: 0%;
        height: 100%;
        background-color: var(--color-primary);
    }

    /* 18. Custom 404 Page illustration */
    .error-illustration {
        width: 100%;
        max-width: 400px;
        margin: 0 auto 40px;
        aspect-ratio: 1;
    }

    /* FOUC Prevention: Hide animated elements on initial load when Javascript is active */
    .js-active .hero-badge-box,
    .js-active .hero-title,
    .js-active .hero-subtitle,
    .js-active .hero-ctas .btn,
    .js-active .stat-card,
    .js-active .signature-svg-container {
        opacity: 0;
    }