/* Macaw Bytes Academy - Dark Theme Stylesheet */

:root {
    --primary-black: #000000;
    --secondary-black: #0a0a0a;
    --tertiary-black: #1a1a1a;
    --primary-white: #ffffff;
    --secondary-white: #f5f5f5;
    --accent-gray: #333333;
    --text-gray: #cccccc;
    --border-gray: #2a2a2a;
    --hover-gray: #404040;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 20px rgba(102, 126, 234, 0.3);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--primary-black);
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(102, 126, 234, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(118, 75, 162, 0.05) 0%, transparent 50%);
    background-attachment: fixed;
    color: var(--primary-white);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Mobile First - Base Styles */
.container {
    width: 100%;
    padding: 0 20px;
    margin: 0 auto;
    max-width: 100%;
}

/* Header & Navigation */
header {
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-gray);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

header:hover {
    background: rgba(10, 10, 10, 0.98);
    box-shadow: var(--shadow-md);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--primary-white);
    transition: var(--transition);
    padding: 0.5rem;
    border-radius: 8px;
}

.logo:hover {
    transform: translateY(-2px);
    background: rgba(255, 255, 255, 0.05);
}

.logo img {
    height: 42px;
    width: auto;
    filter: drop-shadow(0 2px 4px rgba(255, 255, 255, 0.1));
    transition: var(--transition);
}

.logo:hover img {
    transform: scale(1.05);
}

.logo-text {
    font-size: 1.3rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-white) 0%, #a8a8a8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

/* Mobile Navigation */
.nav-toggle {
    display: block;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-gray);
    border-radius: 8px;
    color: var(--primary-white);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem 0.75rem;
    transition: var(--transition);
}

.nav-toggle:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--primary-white);
    transform: scale(1.05);
}

.nav-menu {
    display: none;
    width: 100%;
    margin-top: 1rem;
}

.nav-menu.active {
    display: block;
}

.nav-menu ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.nav-menu a {
    color: var(--text-gray);
    text-decoration: none;
    padding: 0.75rem 1.25rem;
    display: block;
    border-radius: 8px;
    transition: var(--transition);
    position: relative;
    font-weight: 500;
    font-size: 0.95rem;
}

.nav-menu a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 0;
    background: var(--gradient-primary);
    border-radius: 0 3px 3px 0;
    transition: var(--transition);
}

.nav-menu a:hover,
.nav-menu a.active {
    background: rgba(255, 255, 255, 0.08);
    color: var(--primary-white);
    transform: translateX(5px);
    padding-left: 1.5rem;
}

.nav-menu a:hover::before,
.nav-menu a.active::before {
    height: 60%;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--secondary-black) 0%, var(--primary-black) 100%);
    padding: 5rem 0;
    text-align: center;
    border-bottom: 1px solid var(--border-gray);
    position: relative;
    overflow: hidden;
    min-height: 400px;
    display: flex;
    align-items: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 50%, rgba(102, 126, 234, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 70% 80%, rgba(118, 75, 162, 0.1) 0%, transparent 50%);
    pointer-events: none;
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.8;
    }
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--primary-white) 0%, #b8b8b8 50%, #888888 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    z-index: 1;
    animation: fadeInUp 0.8s ease-out;
    font-weight: 800;
    letter-spacing: -1px;
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-gray);
    max-width: 700px;
    margin: 0 auto 2.5rem;
    position: relative;
    z-index: 1;
    animation: fadeInUp 1s ease-out;
    line-height: 1.8;
    font-weight: 400;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
    animation: fadeInUp 1.2s ease-out;
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    background: var(--gradient-primary);
    color: var(--primary-white);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
    font-size: 1rem;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.btn-outline {
    background: transparent;
    color: var(--primary-white);
    border: 2px solid var(--primary-white);
    box-shadow: none;
}

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

.btn-outline::before {
    display: none;
}

/* Sections */
.section {
    padding: 4rem 0;
    position: relative;
}

.section:nth-child(even) {
    background: rgba(26, 26, 26, 0.3);
}

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

.mt-4 {
    margin-top: 2rem;
}

.section-title {
    font-size: 2rem;
    margin-bottom: 3rem;
    text-align: center;
    position: relative;
    padding-bottom: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.4);
}

.section-title::before {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 1px;
    background: rgba(255, 255, 255, 0.2);
}

/* Job Roles Grid */
.roles-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-top: 2rem;
}

.role-card {
    background-color: var(--tertiary-black);
    border: 1px solid var(--border-gray);
    border-radius: 16px;
    padding: 2rem;
    transition: var(--transition);
    text-decoration: none;
    color: var(--primary-white);
    display: block;
    position: relative;
    overflow: hidden;
}

.role-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.1), transparent);
    transition: left 0.5s ease;
}

.role-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
    opacity: 0;
    transition: var(--transition);
    pointer-events: none;
}

.role-card:hover::before {
    left: 100%;
}

.role-card:hover::after {
    opacity: 1;
}

.role-card:hover {
    transform: translateY(-10px) scale(1.02);
    border-color: rgba(102, 126, 234, 0.5);
    box-shadow: var(--shadow-xl);
    background-color: #1f1f1f;
}

.role-card h3 {
    font-size: 1.4rem;
    margin-bottom: 0.75rem;
    color: var(--primary-white);
    font-weight: 700;
    line-height: 1.3;
    transition: var(--transition);
}

.role-card:hover h3 {
    color: var(--primary-white);
}

.role-card p {
    color: var(--text-gray);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.role-badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: var(--gradient-primary);
    color: var(--primary-white);
    border-radius: 20px;
    font-size: 0.75rem;
    margin-top: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.role-card:hover .role-badge {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

/* Courses Grid */
.courses-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-top: 2rem;
}

.course-card {
    background-color: var(--tertiary-black);
    border: 1px solid var(--border-gray);
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition);
    text-decoration: none;
    color: var(--primary-white);
    display: block;
    position: relative;
}

.course-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.08) 0%, rgba(118, 75, 162, 0.08) 100%);
    opacity: 0;
    transition: var(--transition);
    pointer-events: none;
}

.course-card:hover::after {
    opacity: 1;
}

.course-card:hover {
    transform: translateY(-10px) scale(1.02);
    border-color: rgba(102, 126, 234, 0.6);
    box-shadow: var(--shadow-xl);
    background-color: #1f1f1f;
}

.course-thumbnail {
    width: 100%;
    height: 200px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    font-weight: 700;
    color: var(--primary-white);
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.course-thumbnail::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.course-card:hover .course-thumbnail {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.course-content {
    padding: 1.5rem;
}

.course-content h3 {
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
    font-weight: 700;
    line-height: 1.3;
    color: var(--primary-white);
    transition: var(--transition);
}

.course-card:hover .course-content h3 {
    color: var(--primary-white);
}

.course-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--text-gray);
    flex-wrap: wrap;
}

.course-meta span:first-child {
    text-transform: capitalize;
    padding: 0.25rem 0.75rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    font-weight: 500;
    font-size: 0.8rem;
}

.course-level {
    display: inline-block;
    padding: 0.35rem 0.9rem;
    background: rgba(102, 126, 234, 0.2);
    color: #a8b3ff;
    border: 1px solid rgba(102, 126, 234, 0.3);
    border-radius: 20px;
    font-size: 0.75rem;
    margin-top: 0.5rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Course Detail Page */
.course-header {
    background-color: var(--tertiary-black);
    padding: 2rem 0;
    border-bottom: 1px solid var(--border-gray);
}

.course-content-detail {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 0;
}

.course-content-detail h2,
.course-content-detail h3 {
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.course-content-detail p {
    margin-bottom: 1rem;
    color: var(--text-gray);
    line-height: 1.8;
}

.course-content-detail ul,
.course-content-detail ol {
    margin-left: 2rem;
    margin-bottom: 1rem;
    color: var(--text-gray);
}

.course-content-detail code {
    background-color: var(--secondary-black);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    color: var(--primary-white);
}

.course-content-detail pre {
    background-color: var(--secondary-black);
    padding: 1rem;
    border-radius: 4px;
    overflow-x: auto;
    margin: 1rem 0;
}

.course-content-detail pre code {
    background: none;
    padding: 0;
}

/* Chapter-Based Course Layout */
.course-section {
    padding: 2rem 0;
}

.course-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

/* Chapter Sidebar */
.chapter-sidebar {
    background-color: var(--secondary-black);
    border: 1px solid var(--border-gray);
    border-radius: 8px;
    padding: 1.5rem;
    height: fit-content;
    position: sticky;
    top: 100px;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
}

.chapter-sidebar-header {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-gray);
}

.chapter-sidebar-header h3 {
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
    color: var(--primary-white);
    font-weight: 600;
}

.chapter-count {
    font-size: 0.75rem;
    color: var(--text-gray);
}

.chapter-nav {
    margin: 0;
}

.chapter-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.chapter-list li {
    margin-bottom: 0.5rem;
}

.chapter-link {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.6rem 0.85rem;
    color: var(--text-gray);
    text-decoration: none;
    border-radius: 6px;
    transition: var(--transition);
    border: 1px solid transparent;
    font-size: 0.8rem;
}

.chapter-link * {
    font-size: inherit;
}

.chapter-link:hover {
    background-color: var(--tertiary-black);
    color: var(--primary-white);
    border-color: var(--border-gray);
}

.chapter-list li.active .chapter-link {
    background-color: var(--tertiary-black);
    color: var(--primary-white);
    border-color: var(--primary-white);
    font-weight: 500;
}

.chapter-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background-color: var(--tertiary-black);
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: 600;
    flex-shrink: 0;
}

.chapter-list li.active .chapter-number {
    background-color: var(--primary-white);
    color: var(--primary-black);
}

.chapter-sidebar .chapter-link .chapter-title {
    flex: 1;
    font-size: 0.8rem;
    line-height: 1.4;
    font-weight: 400;
}

/* Course Main Content */
.course-main {
    background-color: var(--secondary-black);
    border: 1px solid var(--border-gray);
    border-radius: 8px;
    padding: 2rem;
    min-height: 600px;
}

.chapter-header {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-gray);
}

.chapter-title {
    font-size: 0.8rem;
    margin-bottom: 0.5rem;
    color: var(--primary-white);
    line-height: 1.3;
}

.chapter-progress {
    font-size: 0.9rem;
    color: var(--text-gray);
}

.chapter-content {
    padding: 1rem 0;
}

.chapter-content h2 {
    font-size: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--primary-white);
}

.chapter-content h3 {
    font-size: 1.2rem;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--primary-white);
}

.chapter-content h4 {
    font-size: 1.1rem;
    margin-top: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--primary-white);
}

/* Chapter Navigation Buttons */
.chapter-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-gray);
    flex-wrap: wrap;
}

.btn-nav {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding: 1rem 1.5rem;
    min-width: 200px;
    text-align: left;
    background-color: var(--tertiary-black);
    border: 1px solid var(--border-gray);
    color: var(--primary-white);
    transition: var(--transition);
}

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

.btn-nav.btn-prev {
    align-items: flex-start;
}

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

.btn-nav span:first-child {
    font-size: 0.8rem;
    color: var(--text-gray);
    margin-bottom: 0.35rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-nav:hover span:first-child {
    color: var(--primary-black);
}

.nav-chapter-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary-white);
    line-height: 1.3;
}

.btn-nav:hover .nav-chapter-title {
    color: var(--primary-black);
}

.btn-nav.disabled {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
    background-color: var(--secondary-black);
}

.btn-nav.disabled span:first-child {
    color: var(--text-gray);
}

.chapter-list-toggle {
    display: none;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .course-layout {
        grid-template-columns: 250px 1fr;
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .course-layout {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .chapter-sidebar {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 280px;
        height: calc(100vh - 70px);
        z-index: 1000;
        transition: left 0.3s ease;
        border-radius: 0;
        border-left: none;
        border-top: 1px solid var(--border-gray);
    }

    .chapter-sidebar.mobile-open {
        left: 0;
    }

    .chapter-list-toggle {
        display: block;
    }

    .chapter-navigation {
        flex-direction: column;
    }

    .btn-nav {
        width: 100%;
        min-width: auto;
    }

    .btn-nav.btn-next {
        align-items: flex-start;
        text-align: left;
    }

    .course-main {
        padding: 1.5rem;
    }

    .chapter-title {
        font-size: 1.0rem;
    }
}

@media (max-width: 480px) {
    .course-main {
        padding: 1rem;
    }

    .chapter-title {
        font-size: 0.85rem;
    }

    .chapter-content h2 {
        font-size: 1.3rem;
    }

    .chapter-content h3 {
        font-size: 1.1rem;
    }
}

/* Footer */
footer {
    background: linear-gradient(180deg, var(--secondary-black) 0%, var(--primary-black) 100%);
    border-top: 1px solid var(--border-gray);
    padding: 3rem 0 1.5rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    color: var(--primary-white);
    position: relative;
    padding-bottom: 0.5rem;
}

.footer-section h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.75rem;
}

.footer-section a {
    color: var(--text-gray);
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
}

.footer-section a:hover {
    color: var(--primary-white);
    transform: translateX(5px);
}

.footer-section p {
    color: var(--text-gray);
    line-height: 1.8;
}

.contact-info {
    color: var(--text-gray);
}

.contact-info p {
    margin-bottom: 1rem;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem;
    background-color: var(--tertiary-black);
    border-radius: 8px;
    border: 1px solid var(--border-gray);
    transition: var(--transition);
}

.contact-info p:hover {
    background-color: #222222;
    border-color: var(--primary-white);
    transform: translateX(5px);
}

.contact-info p strong {
    min-width: 80px;
    color: var(--primary-white);
    font-weight: 600;
}

.contact-info a {
    color: var(--text-gray);
    text-decoration: none;
    transition: var(--transition);
}

.contact-info a:hover {
    color: var(--primary-white);
    text-decoration: underline;
}

.contact-card {
    background: linear-gradient(135deg, var(--tertiary-black) 0%, var(--secondary-black) 100%);
    border: 1px solid var(--border-gray);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 1.5rem;
    transition: var(--transition);
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-white);
}

.contact-icon {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    display: inline-block;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-gray);
    color: var(--text-gray);
    font-size: 0.9rem;
}

/* Admin Panel Styles */
.admin-header {
    background-color: var(--secondary-black);
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-gray);
    margin-bottom: 2rem;
}

.admin-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.admin-nav a {
    color: var(--text-gray);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: var(--transition);
}

.admin-nav a:hover,
.admin-nav a.active {
    background-color: var(--accent-gray);
    color: var(--primary-white);
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--primary-white);
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--tertiary-black);
    border: 1px solid var(--border-gray);
    border-radius: 4px;
    color: var(--primary-white);
    font-size: 1rem;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-white);
    background-color: var(--secondary-black);
}

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

select.form-control {
    cursor: pointer;
}

/* Tables */
.table-responsive {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--tertiary-black);
    border-radius: 8px;
    overflow: hidden;
}

table th,
table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-gray);
}

table th {
    background-color: var(--secondary-black);
    color: var(--primary-white);
    font-weight: 600;
}

table tr:hover {
    background-color: var(--accent-gray);
}

table a {
    color: var(--primary-white);
    text-decoration: none;
    margin-right: 1rem;
}

table a:hover {
    text-decoration: underline;
}

/* Alerts */
.alert {
    padding: 1.25rem 1.5rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    border-left: 4px solid;
    box-shadow: var(--shadow-sm);
    animation: slideIn 0.3s ease-out;
    position: relative;
    overflow: hidden;
}

.alert::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: currentColor;
    opacity: 0.3;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.alert-success {
    background: rgba(0, 255, 0, 0.1);
    border-color: #00ff00;
    color: #00ff00;
}

.alert-error {
    background: rgba(255, 0, 0, 0.1);
    border-color: #ff0000;
    color: #ff0000;
}

/* Breadcrumb */
.breadcrumb {
    padding: 1.5rem 0;
    color: var(--text-gray);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.breadcrumb a {
    color: var(--text-gray);
    text-decoration: none;
    transition: var(--transition);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
}

.breadcrumb a:hover {
    color: var(--primary-white);
    background: rgba(255, 255, 255, 0.05);
}

.breadcrumb::before {
    content: '📍';
    margin-right: 0.25rem;
}

/* Tablet Styles */
@media (min-width: 768px) {
    .container {
        max-width: 750px;
        padding: 0 20px;
    }

    .nav-toggle {
        display: none;
    }

    .nav-menu {
        display: block;
        width: auto;
        margin-top: 0;
    }

    .nav-menu ul {
        flex-direction: row;
        gap: 0;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

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

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

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

    .chapter-title {
        font-size: 1.1rem;
    }
}

/* Contact Page Styles */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    margin-top: 2rem;
}

.contact-form-section,
.contact-info-section {
    background-color: var(--tertiary-black);
    border: 1px solid var(--border-gray);
    border-radius: 12px;
    padding: 2rem;
}

.contact-form {
    margin-top: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--primary-white);
    font-weight: 500;
    font-size: 0.95rem;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    background-color: var(--secondary-black);
    border: 1px solid var(--border-gray);
    border-radius: 8px;
    color: var(--primary-white);
    font-size: 1rem;
    transition: var(--transition);
    font-family: inherit;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-white);
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.1);
}

.form-control::placeholder {
    color: var(--text-gray);
    opacity: 0.6;
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

.btn-primary {
    background: var(--gradient-primary);
    border: none;
    color: var(--primary-white);
    font-weight: 600;
    padding: 0.875rem 2rem;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Desktop Styles */
@media (min-width: 992px) {
    .container {
        max-width: 1200px;
        padding: 0 30px;
    }
    
    .contact-layout {
        grid-template-columns: 1.5fr 1fr;
    }

    .hero {
        padding: 6rem 0;
        min-height: 500px;
    }

    .hero h1 {
        font-size: 3.5rem;
    }
    
    .hero p {
        font-size: 1.3rem;
    }
    
    .section-title {
        font-size: 2.5rem;
    }
    
    .section {
        padding: 5rem 0;
    }

    .roles-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 2rem;
    }

    .courses-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 2rem;
    }

    .footer-content {
        grid-template-columns: repeat(4, 1fr);
    }

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

/* Large Desktop Styles */
@media (min-width: 1200px) {
    .container {
        max-width: 1400px;
        padding: 0 40px;
    }
    
    .hero {
        padding: 7rem 0;
        min-height: 600px;
    }
    
    .hero h1 {
        font-size: 4rem;
    }
    
    .hero p {
        font-size: 1.4rem;
    }
    
    .section-title {
        font-size: 3rem;
    }
    
    .section {
        padding: 6rem 0;
    }
    
    .roles-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 2.5rem;
    }
    
    .courses-grid {
        gap: 2.5rem;
    }

    .chapter-title {
        font-size: 1.8rem;
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 3rem; }

.d-flex {
    display: flex;
}

.justify-between {
    justify-content: space-between;
}

.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }