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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #0b0f19;
    color: #ffffff;
    overflow-x: hidden;
    direction: ltr;
    /* اتجاه الموقع من اليسار لليمين */
    text-align: left;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px 50px;
    z-index: 1000;
    background: linear-gradient(to bottom, rgba(11, 15, 25, 0.95), transparent);
}

.logo-container {
    display: flex;
    align-items: center;
    flex: 1;
    text-decoration: none;
}

.site-logo {
    height: 48px;
    width: auto;
    max-width: 180px;
    object-fit: contain;
    display: block;
    transition: transform 0.25s ease, opacity 0.25s ease;
}

.logo-container:hover .site-logo {
    transform: scale(1.04);
}

.logo-text {
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: 1.5px;
    color: #ffffff;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 32px;
    justify-content: center;
    flex: 2;
    /* وضع القائمة في المنتصف تماماً */
}

.nav-spacer {
    flex: 1;
    /* عنصر موازنة مع جهة اللوجو */
}

.nav-links a {
    color: #94a3b8;
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
    color: #ffffff;
}

/* Hero & Video Background Section */
/* =========================================
   Mission Page (Canvas & Sticky Scroll)
   ========================================= */

.hero-section {
    position: relative;
    background: #000;
    height: 700vh;
}

/* ================= 1. الخلفية والكانفاس ================= */
.video-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    z-index: 1;
    background: #000;
    overflow: hidden;
    pointer-events: none;
}

#hero-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(15, 23, 42, 0.4) 0%, rgba(9, 13, 22, 0.85) 100%);
    pointer-events: none;
}

/* ================= 2. حاوية المحتوى الثابتة والتمرير ================= */
.scroll-content {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    z-index: 10;
    pointer-events: none;
}

.scroll-step {
    position: absolute;
    top: 50%;
    width: calc(100% - 100px);
    max-width: 580px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(calc(-50% + 25px));
    transition: opacity 0.45s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.45s cubic-bezier(0.2, 0.8, 0.2, 1), visibility 0.45s;
    will-change: transform, opacity;
}

/* حالة الشريحة النشطة (ظاهرة دائماً بوضوح 100%) */
.scroll-step.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(-50%);
}

/* التوزيع اليمين واليسار */
.scroll-step:nth-child(odd):not(.final-step) {
    left: 8%;
    right: auto;
}

.scroll-step:nth-child(even) {
    right: 8%;
    left: auto;
}

/* الشريحة الأخيرة في المنتصف */
.scroll-step.final-step {
    left: 50%;
    right: auto;
    max-width: 640px;
    transform: translate(-50%, calc(-50% + 25px));
}

.scroll-step.final-step.active {
    transform: translate(-50%, -50%);
}

/* ================= 3. تصميم الكارت الزجاجي ================= */
.floating-content {
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    background: rgba(11, 15, 25, 0.65);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-left: 4px solid #00a8e8;
    padding: 42px 38px;
    border-radius: 20px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.55), 0 0 35px rgba(0, 168, 232, 0.08);
    pointer-events: auto;
}

/* ================= 4. تنسيقات النصوص الداخلية ================= */
.floating-content h1,
.floating-content h2 {
    font-size: 2.1rem;
    color: #ffffff;
    margin-bottom: 18px;
    line-height: 1.25;
    letter-spacing: -0.5px;
}

.floating-content p {
    font-size: 1.05rem;
    color: #cbd5e1;
    line-height: 1.65;
    margin-bottom: 22px;
}

.mt-3 {
    margin-top: 12px;
}

.section-tag {
    display: inline-block;
    color: #00a8e8;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 12px;
}

.inner-heading {
    color: #ffffff;
    font-size: 1.3rem;
    margin-top: 24px;
    margin-bottom: 10px;
    font-weight: 700;
}

/* ================= 5. الزر الزجاجي ================= */
.glass-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    background: rgba(0, 168, 232, 0.1);
    border: 1px solid rgba(0, 168, 232, 0.4);
    color: #00a8e8;
    font-weight: 600;
    border-radius: 30px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.glass-btn:hover {
    background: #00a8e8;
    color: #ffffff;
    transform: translateX(5px);
    box-shadow: 0 10px 20px rgba(0, 168, 232, 0.3);
}

/* ================= 6. القسم الأخير (الوسط) ================= */
.center-content {
    text-align: center;
    border-left: 1px solid rgba(255, 255, 255, 0.1);
    border-top: 4px solid #00a8e8;
}

.poetic-text {
    font-size: 1.25rem !important;
    font-style: italic;
    color: #94a3b8 !important;
    line-height: 1.9 !important;
}

.final-heading {
    font-size: 2.3rem;
    color: #ffffff;
    font-weight: 800;
    margin-top: 25px;
}

/* ================= 7. التجاوب مع الموبايل ================= */
@media (max-width: 900px) {
    .navbar {
        padding: 15px 20px;
        flex-direction: column;
        gap: 15px;
    }

    .site-logo {
        height: 40px;
    }

    .logo-container,
    .nav-spacer {
        flex: none;
    }

    .nav-links {
        gap: 15px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .scroll-step,
    .scroll-step:nth-child(odd):not(.final-step),
    .scroll-step:nth-child(even),
    .scroll-step.final-step {
        left: 50% !important;
        right: auto !important;
        width: calc(100% - 40px);
        max-width: 480px;
        transform: translate(-50%, calc(-50% + 25px)) !important;
    }

    .scroll-step.active,
    .scroll-step:nth-child(odd):not(.final-step).active,
    .scroll-step:nth-child(even).active,
    .scroll-step.final-step.active {
        transform: translate(-50%, -50%) !important;
    }

    .floating-content {
        padding: 32px 22px;
    }

    .floating-content h1,
    .floating-content h2 {
        font-size: 1.6rem;
    }

    .floating-content p {
        font-size: 0.95rem;
        line-height: 1.55;
    }
}


/* =========================================
   Light Theme Override (For Mentorship Page)
   ========================================= */
body.light-theme {
    background-color: #f8fafc;
    /* خلفية بيضاء مائلة للرمادي الفاتح جداً */
    color: #0f172a;
}

/* تعديل ألوان الـ Navbar في الصفحة البيضاء */
body.light-theme .navbar {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 1px 5px rgba(0, 0, 0, 0.05);
}

body.light-theme .logo-text {
    color: #0f172a;
}

body.light-theme .nav-links a {
    color: #64748b;
}

body.light-theme .nav-links a:hover,
body.light-theme .nav-links a.active {
    color: #2563eb;
    /* لون أزرق عند التحديد */
}

/* =========================================
   Mentorship Page Styling (Complete Image Fix)
   ========================================= */
.mentorship-page {
    padding: 120px 20px 60px 20px;
    max-width: 950px;
    margin: 0 auto;
}

/* =========================================
   Mentorship Page Header Styling
   ========================================= */
.page-header {
    text-align: center;
    margin-bottom: 50px;
    padding-top: 10px;
}

.header-tag {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: #2563eb;
    text-transform: uppercase;
    display: inline-block;
    margin-bottom: 12px;
}

.page-header h1 {
    font-size: 2.8rem;
    font-weight: 800;
    color: #0f172a;
    letter-spacing: -1px;
    margin-bottom: 12px;
}

.page-header p {
    font-size: 1.05rem;
    color: #64748b;
    font-weight: 400;
    max-width: 600px;
    margin: 0 auto;
}

/* =========================================
   Mentor Cards
   ========================================= */
.mentor-card {
    display: flex;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03);
    margin-bottom: 30px;
    overflow: hidden;
    transition: transform 0.3s ease;
    align-items: center;
}

.mentor-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06);
}

.mentor-image {
    flex: 0 0 250px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f8fafc;
    align-self: stretch;
}

.mentor-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.mentor-info {
    padding: 25px 30px;
    flex: 1;
}

.mentor-info h2 {
    font-size: 1.75rem;
    color: #0f172a;
    margin-bottom: 4px;
    letter-spacing: -0.5px;
}

.mentor-subtitle {
    font-size: 0.9rem;
    margin-bottom: 14px;
    color: #475569;
    font-weight: 500;
}

.mentor-subtitle .separator {
    margin: 0 6px;
    color: #cbd5e1;
}

.mentor-desc {
    color: #64748b;
    font-size: 0.92rem;
    line-height: 1.5;
    margin-bottom: 18px;
}

.section-title {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.expertise-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 6px 20px;
    list-style: none;
}

.expertise-list li {
    position: relative;
    padding-left: 16px;
    color: #334155;
    font-weight: 600;
    font-size: 0.85rem;
}

.expertise-list li::before {
    content: "•";
    color: #2563eb;
    font-size: 1.4rem;
    position: absolute;
    left: 0;
    top: -6px;
}

.mentor-divider {
    border: none;
    border-top: 1px solid #e2e8f0;
    margin: 16px 0 12px 0;
}

.contact-links {
    display: flex;
    gap: 12px;
}

.contact-links a {
    display: flex;
    align-items: center;
    gap: 6px;
    color: #0f172a;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.85rem;
    padding: 5px 12px;
    border-radius: 6px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    transition: all 0.2s ease;
}

.contact-links a:hover {
    background: #f1f5f9;
    color: #2563eb;
}

/* =========================================
   Footer Styling (Clean & Minimal)
   ========================================= */
.site-footer {
    width: 100%;
    background-color: #ffffff;
    border-top: 1px solid #e2e8f0;
    padding: 25px 50px;
    margin-top: 60px;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-logo .logo-text {
    font-size: 1.3rem;
    font-weight: 800;
    color: #0f172a;
    letter-spacing: 1px;
}

.copyright {
    color: #94a3b8;
    font-size: 0.85rem;
    font-weight: 400;
}

/* التجاوب مع شاشات الموبايل */
@media (max-width: 768px) {
    .site-footer {
        padding: 20px;
    }

    .footer-container {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
}

/* =========================================
   التجاوب مع الشاشات الصغيرة والموبايل
   ========================================= */
@media (max-width: 900px) {
    .mentor-card {
        flex-direction: column;
    }

    .mentor-image {
        flex: none;
        width: 100%;
        height: 260px;
    }

    .mentor-info {
        padding: 20px;
    }

    .page-header h1 {
        font-size: 2rem;
    }

    .page-header p {
        font-size: 0.95rem;
    }
}

/* =========================================
   Featured Cinema-Style Overview Page
   ========================================= */
.hero-overview {
    padding: 130px 20px 80px 20px;
    max-width: 900px;
    margin: 0 auto;
}

/* Container Wrapper */
.featured-video-container {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 20px;
    box-shadow: 0 20px 40px -15px rgba(15, 23, 42, 0.05);
    overflow: hidden;
    transition: all 0.3s ease;
}

.featured-video-container:hover {
    box-shadow: 0 25px 50px -12px rgba(37, 99, 235, 0.08);
}

/* Aspect-Ratio Video Frame */
.video-frame {
    width: 100%;
    aspect-ratio: 16 / 9;
    background: #090d16;
    position: relative;
}

.video-frame video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Testimonial Section Under Video */
.featured-testimonial {
    padding: 40px;
    display: flex;
    gap: 25px;
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    border-top: 1px solid #f1f5f9;
}

.quote-symbol {
    font-size: 3.8rem;
    font-family: Georgia, serif;
    color: #2563eb;
    line-height: 0.8;
    user-select: none;
}

.testimonial-content {
    flex: 1;
}

.quote-body {
    font-size: 1.15rem;
    line-height: 1.7;
    color: #334155;
    font-weight: 450;
    margin-bottom: 25px;
}

.student-profile {
    display: flex;
    align-items: center;
    gap: 15px;
}

.avatar-placeholder {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: #eff6ff;
    color: #2563eb;
    font-weight: 700;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #dbeafe;
}

.student-meta h3 {
    font-size: 1.1rem;
    color: #0f172a;
    font-weight: 700;
    margin-bottom: 2px;
}

.student-meta span {
    font-size: 0.85rem;
    color: #64748b;
    font-weight: 500;
}

/* Responsive Handling */
@media (max-width: 768px) {
    .featured-testimonial {
        padding: 25px;
        flex-direction: column;
        gap: 10px;
    }

    .quote-symbol {
        font-size: 2.8rem;
    }

    .quote-body {
        font-size: 1rem;
    }
}

/* =========================================
   Competition Page Styling (Tabs, About & Winners)
   ========================================= */

/* 1. Base Layout & Header */
.competition-page {
    padding: 120px 20px 60px 20px;
    max-width: 950px;
    margin: 0 auto;
}

.competition-header {
    text-align: center;
    margin-bottom: 50px;
}

.competition-logo-wrapper {
    margin-bottom: 20px;
}

.challenge-logo {
    max-width: 240px;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0, 168, 232, 0.12);
}

.challenge-cyan-text {
    color: #00a8e8 !important;
    letter-spacing: 2px !important;
}

/* 2. Tabs Navigation UI */
.competition-tabs {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 30px;
}

.comp-tab {
    background: #f1f5f9;
    border: none;
    padding: 12px 28px;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 700;
    color: #64748b;
    cursor: pointer;
    transition: all 0.3s ease;
}

.comp-tab:hover {
    background: #e2e8f0;
    color: #0f172a;
}

.comp-tab.active {
    background: #00a8e8;
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(0, 168, 232, 0.3);
}

.comp-view {
    display: none;
    animation: fadeInTab 0.4s ease forwards;
}

.comp-view.active-view {
    display: block;
}

@keyframes fadeInTab {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* =========================================
   3. About EYAC Tab Styling
   ========================================= */
.about-hero {
    text-align: center;
    margin-bottom: 60px;
}

.about-hero h1 {
    font-size: 2.5rem;
    color: #0f172a;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
}

.about-lead {
    font-size: 1.15rem;
    color: #334155;
    line-height: 1.7;
    margin-bottom: 15px;
    font-weight: 500;
}

.about-section {
    margin-bottom: 50px;
}

.about-section h2 {
    font-size: 1.6rem;
    color: #0f172a;
    margin-bottom: 15px;
    border-bottom: 2px solid #f1f5f9;
    padding-bottom: 10px;
}

.section-desc {
    color: #64748b;
    font-size: 1.05rem;
    margin-bottom: 25px;
}

/* Focus Grid */
.focus-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.focus-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02);
}

.focus-card h4 {
    font-size: 1.1rem;
    color: #00a8e8;
    margin-bottom: 10px;
}

.focus-card p {
    color: #475569;
    font-size: 0.95rem;
    line-height: 1.5;
}

/* Participants Grid */
.participants-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 20px;
}

.participant-card {
    background: #f8fafc;
    border: 1px dashed #cbd5e1;
    padding: 25px;
    border-radius: 12px;
    text-align: center;
}

.participant-card .icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.participant-card h4 {
    font-size: 1.1rem;
    color: #0f172a;
    margin-bottom: 5px;
}

.participant-card p {
    color: #64748b;
    font-size: 0.95rem;
}

.section-note {
    background: #f0f9ff;
    color: #0369a1;
    padding: 15px 20px;
    border-radius: 8px;
    font-size: 0.95rem;
    border-left: 4px solid #00a8e8;
}

/* Split Section & Lists */
.split-section {
    display: flex;
    gap: 40px;
}

.split-section .half {
    flex: 1;
}

.styled-list {
    list-style: none;
    margin-top: 15px;
}

.styled-list li {
    position: relative;
    padding-left: 25px;
    margin-bottom: 12px;
    color: #475569;
    line-height: 1.5;
}

.styled-list li::before {
    content: "•";
    position: absolute;
    left: 4px;
    top: -1px;
    color: #10b981;
    font-size: 1.4rem;
    line-height: 1;
}

.gains-list li::before {
    color: #00a8e8;
}

/* Highlight Section (2026 Recap) */
.highlight-section {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
}

.recap-header p {
    color: #64748b;
    line-height: 1.6;
    margin-bottom: 30px;
}

.stats-banner {
    display: flex;
    justify-content: space-around;
    background: #0f172a;
    padding: 25px;
    border-radius: 12px;
    margin-bottom: 30px;
}

.stat {
    text-align: center;
    color: #ffffff;
}

.stat strong {
    display: block;
    font-size: 1.3rem;
    color: #00a8e8;
    margin-bottom: 5px;
}

.stat span {
    font-size: 0.85rem;
    color: #94a3b8;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.medals-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.medal-card {
    background: #f8fafc;
    padding: 20px;
    border-radius: 12px;
}

.medal-card p {
    margin-top: 10px;
    font-size: 0.9rem;
    color: #475569;
    line-height: 1.5;
}

/* Beyond the Challenge CTA */
.center-text {
    text-align: center;
}

.center-text h2 {
    border-bottom: none;
    margin-bottom: 20px;
}

.max-w-700 {
    max-width: 700px;
}

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

.cta-box {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border: 1px solid #bae6fd;
    padding: 40px;
    border-radius: 16px;
    margin-top: 40px;
}

.cta-box h3 {
    font-size: 1.6rem;
    color: #0369a1;
    margin-bottom: 10px;
}

.cta-box p {
    color: #0c4a6e;
    margin-bottom: 25px;
    font-size: 1.05rem;
}

/* =========================================
   4. Winners Tab Styling (Vertical Portraits)
   ========================================= */
.honour-group {
    margin-bottom: 50px;
}

.group-title h2 {
    font-size: 1.4rem;
    color: #0f172a;
    margin-bottom: 20px;
    font-weight: 700;
    border: none;
    padding: 0;
}

.portrait-grid {
    display: grid;
    gap: 25px;
}

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

.portrait-card {
    display: flex;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02);
    transition: all 0.3s ease;
}

.portrait-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 168, 232, 0.08);
}

.portrait-image-box {
    flex: 0 0 170px;
    height: 220px;
    background: #f8fafc;
    overflow: hidden;
}

.portrait-image-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
}

.portrait-info {
    padding: 25px 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.gold-tier {
    border-left: 5px solid #f59e0b;
}

.silver-tier {
    border-left: 5px solid #94a3b8;
}

.bronze-tier {
    border-left: 5px solid #d97706;
}

.honour-badge {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 12px;
    margin-bottom: 10px;
    text-transform: uppercase;
    width: fit-content;
}

.gold-bg {
    background: #fef3c7;
    color: #b45309;
}

.silver-bg {
    background: #f1f5f9;
    color: #475569;
}

.bronze-bg {
    background: #ffedd5;
    color: #c2410c;
}

.portrait-info h3 {
    font-size: 1.25rem;
    color: #0f172a;
    margin-bottom: 10px;
    font-weight: 700;
}

.phone-number {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #64748b;
    font-size: 0.9rem;
    font-weight: 500;
}

.phone-number svg {
    color: #00a8e8;
}

/* =========================================
   5. Responsive Handling (Mobile Support)
   ========================================= */
@media (max-width: 900px) {

    /* About Tab Responsive */
    .focus-grid,
    .participants-grid,
    .medals-grid {
        grid-template-columns: 1fr;
    }

    .split-section {
        flex-direction: column;
        gap: 0;
    }

    .stats-banner {
        flex-direction: column;
        gap: 20px;
    }

    .highlight-section {
        padding: 25px;
    }

    /* Winners Tab Responsive */
    .grid-2 {
        grid-template-columns: 1fr;
    }

    .portrait-card {
        flex-direction: column;
    }

    .portrait-image-box {
        flex: none;
        width: 100%;
        height: 260px;
    }

    .portrait-info {
        padding: 20px;
    }
}

/* =========================================
   Projects Page & Project Details Styling
   ========================================= */
.projects-page,
.project-details-page {
    padding: 120px 20px 60px 20px;
    max-width: 950px;
    margin: 0 auto;
}

/* Projects Main Grid */
.projects-grid {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

/* Single Project Card Component */
.project-card {
    display: flex;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03);
    transition: all 0.3s ease;
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.06);
}

.project-card-image {
    flex: 0 0 320px;
    position: relative;
    background: #f8fafc;
}

.project-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.project-category-tag {
    position: absolute;
    top: 15px;
    left: 15px;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(8px);
    color: #ffffff;
    font-size: 0.72rem;
    font-weight: 700;
    padding: 5px 12px;
    border-radius: 20px;
    letter-spacing: 0.5px;
}

.project-card-info {
    padding: 30px 35px;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.project-card-info h2 {
    font-size: 1.8rem;
    color: #0f172a;
    margin-bottom: 10px;
}

.project-summary {
    color: #64748b;
    font-size: 0.98rem;
    line-height: 1.6;
    margin-bottom: 25px;
}

.project-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid #f1f5f9;
    padding-top: 18px;
}

.project-tags {
    display: flex;
    gap: 8px;
}

.project-tags span {
    background: #f1f5f9;
    color: #475569;
    font-size: 0.78rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 6px;
}

.explore-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: #2563eb;
    font-weight: 700;
    font-size: 0.9rem;
    text-decoration: none;
    transition: transform 0.2s ease;
}

.explore-btn:hover {
    transform: translateX(3px);
}

/* =========================================
   Project Details Inner Page (tectopower.html)
   ========================================= */
.back-navigation {
    margin-bottom: 25px;
}

.back-navigation a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #64748b;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

.back-navigation a:hover {
    color: #2563eb;
}

.detail-header {
    text-align: left;
    margin-bottom: 30px;
}

.detail-lead {
    font-size: 1.2rem;
    color: #475569;
    line-height: 1.6;
    margin-top: 10px;
}

.project-hero-media {
    width: 100%;
    max-height: 420px;
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 40px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.04);
}

.project-hero-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.project-content-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
}

.content-block {
    margin-bottom: 35px;
}

.content-block h2 {
    font-size: 1.4rem;
    color: #0f172a;
    margin-bottom: 12px;
}

.content-block p {
    color: #475569;
    line-height: 1.7;
    font-size: 1rem;
}

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

.innovations-list li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 12px;
    color: #475569;
    line-height: 1.6;
}

.innovations-list li::before {
    content: "•";
    color: #2563eb;
    font-size: 1.6rem;
    position: absolute;
    left: 0;
    top: -5px;
}

/* Sidebar Box */
.sidebar-box {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    padding: 25px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02);
}

.sidebar-box h3 {
    font-size: 1.1rem;
    color: #0f172a;
    margin-bottom: 20px;
    border-bottom: 1px solid #f1f5f9;
    padding-bottom: 10px;
}

.meta-item {
    margin-bottom: 18px;
}

.meta-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    color: #94a3b8;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.meta-value {
    font-size: 0.95rem;
    color: #0f172a;
    font-weight: 600;
}

.status-active {
    color: #16a34a;
}

.meta-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 6px;
}

.meta-tags span {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    color: #334155;
    font-size: 0.75rem;
    padding: 3px 8px;
    border-radius: 4px;
    font-weight: 600;
}

/* Responsive */
@media (max-width: 900px) {
    .project-card {
        flex-direction: column;
    }

    .project-card-image {
        flex: none;
        height: 240px;
    }

    .project-content-grid {
        grid-template-columns: 1fr;
    }
}

/* =========================================
   Materials Page Styling (Complete & Updated)
   ========================================= */
.materials-page {
    padding: 120px 20px 60px 20px;
    max-width: 950px;
    margin: 0 auto;
}

/* ================= 1. Main Featured Book Card ================= */
.featured-book-section {
    margin-bottom: 70px;
}

.featured-book-card {
    display: flex;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.04);
    overflow: hidden;
    align-items: center;
}

/* PDF Preview Viewer */
.pdf-preview-container {
    flex: 0 0 350px;
    height: 480px;
    background: #e2e8f0;
    border-radius: 12px;
    overflow: hidden;
    margin: 30px;
    box-shadow: 0 15px 35px rgba(15, 23, 42, 0.1);
    border: 1px solid #cbd5e1;
    position: relative;
}

.pdf-preview-container iframe {
    width: 100%;
    height: 100%;
    border: none;
    display: block;
}

/* Book Info */
.book-info {
    padding: 40px;
    flex: 1;
}

.book-badge {
    display: inline-block;
    background: #eff6ff;
    color: #2563eb;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 5px 12px;
    border-radius: 20px;
    margin-bottom: 15px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.book-info h2 {
    font-size: 2.2rem;
    color: #0f172a;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.book-author {
    color: #64748b;
    font-size: 1.05rem;
    margin-bottom: 20px;
}

.book-author strong {
    color: #0f172a;
}

.book-description {
    color: #475569;
    font-size: 1.05rem;
    line-height: 1.6;
    margin-bottom: 25px;
}

.book-features {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 30px;
}

.book-features span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #f8fafc;
    color: #334155;
    font-size: 0.88rem;
    font-weight: 600;
    padding: 7px 16px;
    border-radius: 30px;
    border: 1px solid #e2e8f0;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.02);
}

.book-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.pdf-download-btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 14px 34px;
    background: linear-gradient(135deg, #00a8e8 0%, #2563eb 100%);
    color: #ffffff !important;
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: 0.3px;
    text-decoration: none !important;
    border-radius: 50px;
    box-shadow: 0 10px 25px -4px rgba(0, 168, 232, 0.42), 0 4px 12px rgba(37, 99, 235, 0.25);
    transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    overflow: hidden;
}

.pdf-download-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s ease;
}

.pdf-download-btn:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 18px 36px -4px rgba(0, 168, 232, 0.55), 0 6px 18px rgba(37, 99, 235, 0.35);
    background: linear-gradient(135deg, #00b4d8 0%, #1d4ed8 100%);
    color: #ffffff !important;
}

.pdf-download-btn:hover::before {
    left: 100%;
}

.pdf-download-btn:active {
    transform: translateY(-1px) scale(0.99);
}

.pdf-download-btn .btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: rgba(255, 255, 255, 0.22);
    border-radius: 50%;
    transition: transform 0.3s ease, background 0.3s ease;
}

.pdf-download-btn:hover .btn-icon {
    transform: translateY(2px);
    background: rgba(255, 255, 255, 0.32);
}

.pdf-download-btn .btn-arrow {
    transition: transform 0.3s ease;
}

.pdf-download-btn:hover .btn-arrow {
    transform: translateX(4px);
}

/* ================= 2. Supplementary Resources Section ================= */
.section-title-wrap {
    text-align: left;
    margin-bottom: 40px;
    border-bottom: 1px solid #e2e8f0;
    padding-bottom: 15px;
}

.section-title-wrap h3 {
    font-size: 1.5rem;
    color: #0f172a;
    margin-bottom: 5px;
}

.section-title-wrap p {
    color: #64748b;
    font-size: 0.95rem;
}

/* Stages Styling */
.stage-section {
    margin-bottom: 55px;
}

.stage-title {
    font-size: 1.3rem;
    color: #0f172a;
    margin-bottom: 25px;
    padding-bottom: 12px;
    border-bottom: 2px solid #f1f5f9;
    display: flex;
    align-items: center;
    gap: 12px;
}

.stage-badge {
    background: #eff6ff;
    color: #2563eb;
    font-size: 0.8rem;
    padding: 5px 12px;
    border-radius: 8px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

/* Resources Grid & Cards */
.resources-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.resource-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 25px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.01);
}

.resource-card:hover {
    transform: translateY(-4px);
    border-color: #cbd5e1;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.04);
}

.resource-card h4 {
    font-size: 1.1rem;
    color: #0f172a;
    margin-bottom: 10px;
}

.resource-card p {
    color: #64748b;
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 20px;
}

.resource-link {
    color: #2563eb;
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 5px;
}

.resource-link:hover {
    text-decoration: underline;
}

/* ================= 3. Where to Go Next Section ================= */
.next-steps-section {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 45px 50px;
    margin-top: 60px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
}

.next-steps-section h3 {
    font-size: 1.8rem;
    color: #0f172a;
    margin-bottom: 25px;
    font-weight: 800;
}

.next-steps-section p {
    color: #475569;
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 12px;
}

.next-steps-section p strong {
    color: #0f172a;
    font-size: 1.1rem;
}

/* ================= Responsive Handling (Mobile) ================= */
@media (max-width: 900px) {
    .featured-book-card {
        flex-direction: column;
    }

    .pdf-preview-container {
        flex: none;
        width: calc(100% - 40px);
        margin: 20px;
        height: 400px;
    }

    .book-info {
        padding: 25px;
    }

    .book-features {
        flex-direction: column;
        gap: 10px;
    }

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

    .next-steps-section {
        padding: 30px 25px;
    }
}