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

:root {
    --primary-black: #1a1a1a;
    --secondary-black: #2d2d2d;
    --accent-yellow: #FFD700;
    --accent-yellow-hover: #FFC000;
    --text-white: #ffffff;
    --text-gray: #cccccc;
    --text-muted: #9a9a9a;
    --border-yellow: #FFD700;
    --surface-elevated: #252525;
    --glow-yellow: rgba(255, 215, 0, 0.15);
    --border-subtle: rgba(255, 255, 255, 0.08);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--primary-black);
    color: var(--text-white);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navbar */
.navbar {
    background-color: var(--secondary-black);
    padding: 20px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

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

.logo {
    font-size: 28px;
    font-weight: bold;
    color: var(--text-white);
}

.highlight {
    color: var(--accent-yellow);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-links a {
    color: var(--text-white);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--accent-yellow);
    transition: 0.3s;
}

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    text-align: center;
    background: linear-gradient(135deg, var(--primary-black) 0%, var(--secondary-black) 100%);
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
}

.hero p {
    font-size: 18px;
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto 40px;
}

.cta-button {
    background-color: var(--accent-yellow);
    color: var(--primary-black);
    border: none;
    padding: 15px 40px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    border-radius: 5px;
    transition: background-color 0.3s, transform 0.2s;
}

.cta-button:hover {
    background-color: var(--accent-yellow-hover);
    transform: translateY(-2px);
}

a.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
}

/* TechOrda grant */
.techorda-grant {
    display: inline-flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px 14px;
    margin: 0;
}

.techorda-grant--hero {
    justify-content: center;
    padding: 12px 18px;
    margin-bottom: 20px;
    background: rgba(255, 215, 0, 0.1);
    border: 1px solid rgba(255, 215, 0, 0.35);
    border-radius: 10px;
    max-width: 100%;
}

.course-hero-content .techorda-grant--hero {
    margin-left: auto;
    margin-right: auto;
}

.techorda-grant--inline {
    justify-content: center;
    font-size: 14px;
    color: var(--text-gray);
    margin-top: 12px;
}

.techorda-grant--block {
    display: flex;
    width: 100%;
    max-width: 720px;
    margin: 20px auto 28px;
    padding: 14px 18px;
    background: rgba(255, 215, 0, 0.08);
    border: 1px solid rgba(255, 215, 0, 0.25);
    border-radius: 10px;
    line-height: 1.5;
}

.techorda-grant__badge {
    display: inline-block;
    padding: 4px 10px;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--primary-black);
    background: var(--accent-yellow);
    border-radius: 6px;
    flex-shrink: 0;
}

.techorda-grant__text {
    margin: 0;
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.45;
}

.techorda-grant__text strong {
    color: var(--accent-yellow);
    font-weight: 600;
}

.meta-pill--grant {
    color: var(--primary-black) !important;
    background: rgba(255, 215, 0, 0.25) !important;
    border-color: rgba(255, 215, 0, 0.5) !important;
    font-weight: 600;
}

.course-meta-tag--grant {
    color: var(--accent-yellow) !important;
    border-color: rgba(255, 215, 0, 0.4) !important;
    background: rgba(255, 215, 0, 0.12) !important;
    font-weight: 600;
}

.info-card--grant {
    border-color: rgba(255, 215, 0, 0.45) !important;
    background: linear-gradient(145deg, rgba(255, 215, 0, 0.12), var(--secondary-black)) !important;
}

.info-card--grant .info-value {
    color: var(--accent-yellow) !important;
}

.hero-home .techorda-grant--hero {
    justify-content: flex-start;
}

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

/* About Section */
.about {
    padding: 100px 0;
    background-color: var(--secondary-black);
}

.about h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.about-card {
    background-color: var(--primary-black);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    border: 2px solid transparent;
    transition: border-color 0.3s, transform 0.2s;
}

.about-card:hover {
    border-color: var(--accent-yellow);
    transform: translateY(-5px);
}

.about-card .icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.about-card h3 {
    color: var(--accent-yellow);
    margin-bottom: 15px;
    font-size: 20px;
}

.about-card p {
    color: var(--text-gray);
}

/* Courses Section */
.courses {
    padding: 100px 0;
    background-color: var(--primary-black);
}

.courses h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.course-card {
    background-color: var(--secondary-black);
    padding: 30px;
    border-radius: 10px;
    border: 2px solid transparent;
    transition: border-color 0.3s, transform 0.2s;
    position: relative;
}

.course-card:hover {
    border-color: var(--accent-yellow);
    transform: translateY(-5px);
}

.course-card.featured {
    border-color: var(--accent-yellow);
}

.course-badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background-color: var(--accent-yellow);
    color: var(--primary-black);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
}

.course-badge.popular {
    background-color: var(--accent-yellow);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.course-card h3 {
    color: var(--accent-yellow);
    margin-bottom: 15px;
    font-size: 22px;
}

.course-card p {
    color: var(--text-gray);
    margin-bottom: 20px;
}

.course-features {
    list-style: none;
    margin-bottom: 20px;
}

.course-features li {
    color: var(--text-gray);
    margin-bottom: 8px;
}

.course-price {
    font-size: 28px;
    font-weight: bold;
    color: var(--accent-yellow);
    margin-bottom: 20px;
}

.course-buttons {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.course-button,
.details-link,
.enroll-link {
    width: 100%;
    background-color: transparent;
    color: var(--accent-yellow);
    border: 2px solid var(--accent-yellow);
    padding: 12px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    border-radius: 5px;
    transition: background-color 0.3s, color 0.3s;
    text-decoration: none;
    text-align: center;
    display: inline-block;
}

.course-button:hover,
.details-link:hover,
.enroll-link:hover {
    background-color: var(--accent-yellow);
    color: var(--primary-black);
}

.details-link {
    background-color: var(--accent-yellow);
    color: var(--primary-black);
}

.details-link:hover {
    background-color: var(--accent-yellow-hover);
}

/* Course Page Styles */
.course-page .course-hero {
    padding: 160px 0 100px;
    background:
        radial-gradient(ellipse 80% 60% at 50% -10%, var(--glow-yellow), transparent 55%),
        linear-gradient(160deg, #141414 0%, var(--primary-black) 45%, var(--secondary-black) 100%);
    position: relative;
    overflow: hidden;
}

.course-page .course-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        90deg,
        transparent,
        transparent 80px,
        rgba(255, 215, 0, 0.02) 80px,
        rgba(255, 215, 0, 0.02) 81px
    );
    pointer-events: none;
}

.course-page .course-hero .container {
    position: relative;
    z-index: 1;
}

.course-hero {
    padding: 160px 0 100px;
    background: linear-gradient(135deg, var(--primary-black) 0%, var(--secondary-black) 100%);
}

.course-hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.course-badge-large {
    display: inline-block;
    background-color: var(--accent-yellow);
    color: var(--primary-black);
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: bold;
    margin-bottom: 20px;
}

.course-badge-large.popular {
    animation: pulse 2s infinite;
}

.course-hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    color: var(--text-white);
}

.course-hero p {
    font-size: 18px;
    color: var(--text-gray);
    margin-bottom: 30px;
}

.course-meta {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.meta-item {
    color: var(--text-gray);
    font-size: 16px;
}

.meta-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-subtle);
    border-radius: 999px;
    color: var(--text-gray);
    font-size: 14px;
    transition: border-color 0.25s, background 0.25s, color 0.25s;
}

.course-page .meta-pill:hover {
    border-color: rgba(255, 215, 0, 0.4);
    background: rgba(255, 215, 0, 0.08);
    color: var(--text-white);
}

/* Unified section titles */
.section-title {
    text-align: center;
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 36px;
    color: var(--text-white);
    letter-spacing: -0.02em;
}

.section-title::after {
    content: "";
    display: block;
    width: 56px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-yellow), transparent);
    margin: 12px auto 0;
    border-radius: 2px;
}

.title-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    height: 28px;
    margin-left: 8px;
    padding: 0 8px;
    background: var(--accent-yellow);
    color: var(--primary-black);
    border-radius: 14px;
    font-size: 14px;
    font-weight: 800;
    vertical-align: middle;
}

.course-hero-price {
    font-size: 42px;
    font-weight: bold;
    color: var(--accent-yellow);
    margin-bottom: 30px;
}

.course-detail {
    padding: 100px 0;
    background-color: var(--secondary-black);
}

.course-detail h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 30px;
    color: var(--accent-yellow);
}

.course-detail > .container > p {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 50px;
    color: var(--text-gray);
    font-size: 18px;
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.detail-card {
    background-color: var(--primary-black);
    padding: 30px;
    border-radius: 10px;
    border: 2px solid transparent;
    transition: border-color 0.3s, transform 0.2s;
}

.detail-card:hover {
    border-color: var(--accent-yellow);
    transform: translateY(-5px);
}

.detail-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.detail-card h3 {
    color: var(--accent-yellow);
    margin-bottom: 15px;
    font-size: 20px;
}

.detail-card ul {
    list-style: none;
}

.detail-card ul li {
    color: var(--text-gray);
    margin-bottom: 8px;
    padding-left: 25px;
    position: relative;
}

.detail-card ul li:before {
    content: "✓";
    color: var(--accent-yellow);
    position: absolute;
    left: 0;
}

/* Compact course sections */
.course-section-compact {
    padding: 56px 0;
}

.course-skills {
    padding: 56px 0;
    background-color: var(--primary-black);
}

.skills-compact-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px 36px;
    max-width: 960px;
    margin: 0 auto;
    padding: 24px 28px;
    background: linear-gradient(145deg, var(--surface-elevated) 0%, var(--secondary-black) 100%);
    border-radius: 12px;
    border: 1px solid var(--border-subtle);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

.skills-compact-list li {
    color: var(--text-gray);
    font-size: 14px;
    line-height: 1.45;
    padding-left: 14px;
    position: relative;
}

.skills-compact-list li::before {
    content: "•";
    color: var(--accent-yellow);
    position: absolute;
    left: 0;
}

.skill-name {
    color: var(--accent-yellow);
    font-weight: 600;
}

/* Separated bottom panels */
.course-panel {
    padding: 56px 0;
}

.course-projects-panel {
    background-color: var(--primary-black);
}

.course-assessment-panel {
    background-color: var(--secondary-black);
}

.course-info-panel {
    background-color: var(--primary-black);
}

.projects-compact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    max-width: 900px;
    margin: 0 auto;
}

.project-row {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 14px 16px;
    background: linear-gradient(145deg, var(--surface-elevated) 0%, var(--secondary-black) 100%);
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    transition: border-color 0.25s, transform 0.2s, box-shadow 0.25s;
}

.project-row:hover {
    border-color: rgba(255, 215, 0, 0.35);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.project-num {
    flex-shrink: 0;
    font-size: 13px;
    font-weight: 800;
    color: var(--accent-yellow);
    opacity: 0.9;
    min-width: 24px;
}

.project-row h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: 2px;
}

.project-row p {
    font-size: 13px;
    color: var(--text-muted);
    margin: 0;
    line-height: 1.35;
}

.assessment-grid {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    max-width: 960px;
    margin: 0 auto;
    padding: 0;
}

.assessment-item {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1 1 280px;
    max-width: 100%;
    padding: 12px 16px;
    background: var(--primary-black);
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    color: var(--text-gray);
    font-size: 14px;
    line-height: 1.4;
    transition: border-color 0.25s, background 0.25s;
}

.assessment-item:hover {
    border-color: rgba(255, 215, 0, 0.3);
    background: var(--surface-elevated);
}

.assessment-icon {
    font-size: 20px;
    flex-shrink: 0;
}

.info-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
    max-width: 960px;
    margin: 0 auto;
}

.info-card {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 14px 16px;
    background: linear-gradient(145deg, var(--surface-elevated) 0%, var(--secondary-black) 100%);
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    transition: border-color 0.25s;
}

.info-card:hover {
    border-color: rgba(255, 215, 0, 0.25);
}

.info-card--highlight {
    border-color: rgba(255, 215, 0, 0.45);
    background: linear-gradient(145deg, rgba(255, 215, 0, 0.12) 0%, var(--secondary-black) 100%);
    grid-column: 1 / -1;
}

.info-card--highlight .info-value {
    color: var(--accent-yellow);
    font-size: 18px;
}

.info-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
}

.info-value {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-white);
}

.course-enroll-banner {
    padding: 48px 0;
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.12) 0%, var(--secondary-black) 50%, var(--primary-black) 100%);
    border-top: 1px solid rgba(255, 215, 0, 0.2);
    border-bottom: 1px solid rgba(255, 215, 0, 0.1);
}

.course-enroll-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}

.course-enroll-inner h2 {
    font-size: 26px;
    color: var(--text-white);
    margin-bottom: 6px;
}

.course-enroll-inner p {
    color: var(--text-gray);
    font-size: 15px;
    margin: 0;
}

/* Course page polish */
.course-page .detail-card,
.course-page .goal-card,
.course-page .teacher-course-card {
    border: 1px solid var(--border-subtle);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
    transition: border-color 0.25s, transform 0.2s;
}

.course-page .detail-card:hover,
.course-page .goal-card:hover {
    border-color: rgba(255, 215, 0, 0.25);
    transform: translateY(-2px);
}

.course-page .curriculum-item {
    border: 1px solid var(--border-subtle);
    border-left: 4px solid var(--accent-yellow);
}

.course-page .course-detail h2.section-title,
.course-page .course-teacher h2.section-title,
.course-page .course-goals h2.section-title,
.course-page .course-methodology h2.section-title,
.course-page .course-curriculum h2.section-title {
    color: var(--text-white);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.skill-item {
    background-color: var(--secondary-black);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    border: 2px solid transparent;
    transition: border-color 0.3s, transform 0.2s;
}

.skill-item:hover {
    border-color: var(--accent-yellow);
    transform: translateY(-5px);
}

.skill-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.skill-item h3 {
    color: var(--accent-yellow);
    margin-bottom: 10px;
    font-size: 18px;
}

.skill-item p {
    color: var(--text-gray);
    font-size: 14px;
}

.course-curriculum {
    padding: 100px 0;
    background-color: var(--secondary-black);
}

.course-curriculum h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: var(--accent-yellow);
}

.curriculum-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.curriculum-item {
    display: flex;
    gap: 20px;
    background-color: var(--primary-black);
    padding: 30px;
    border-radius: 10px;
    border-left: 4px solid var(--accent-yellow);
    transition: transform 0.2s;
}

.curriculum-item:hover {
    transform: translateX(5px);
}

.module-number {
    width: 50px;
    height: 50px;
    background-color: var(--accent-yellow);
    color: var(--primary-black);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
    flex-shrink: 0;
}

.module-info {
    flex: 1;
}

.module-info h3 {
    color: var(--accent-yellow);
    margin-bottom: 5px;
    font-size: 20px;
}

.module-duration {
    color: var(--text-gray);
    font-size: 14px;
    margin-bottom: 10px;
}

.module-info p {
    color: var(--text-gray);
    margin: 0;
}

.lesson-list {
    list-style: none;
    margin-top: 15px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 8px;
}

.lesson-list li {
    color: var(--text-gray);
    font-size: 14px;
    padding-left: 18px;
    position: relative;
}

.lesson-list li::before {
    content: "•";
    color: var(--accent-yellow);
    position: absolute;
    left: 0;
}

.course-goals,
.course-methodology,
.course-assessment {
    padding: 80px 0;
}


.course-goals {
    background-color: var(--secondary-black);
}

.course-methodology,
.course-assessment {
    background-color: var(--primary-black);
}

.course-teacher {
    padding: 64px 0;
    background-color: var(--secondary-black);
}

.teacher-profile--expanded {
    display: grid;
    grid-template-columns: minmax(260px, 300px) 1fr;
    gap: 0;
    max-width: 1000px;
    margin: 0 auto;
    background: linear-gradient(145deg, var(--surface-elevated) 0%, var(--primary-black) 100%);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
    overflow: hidden;
}

.teacher-profile-aside {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 32px 28px;
    background: rgba(0, 0, 0, 0.25);
    border-right: 1px solid var(--border-subtle);
}

.teacher-profile-photo {
    width: 120px;
    height: 120px;
    margin-bottom: 16px;
    border-radius: 50%;
    object-fit: cover;
    object-position: center 15%;
    flex-shrink: 0;
    border: 3px solid rgba(255, 215, 0, 0.35);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    background-color: var(--primary-black);
}

.teacher-profile-name {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 8px;
    line-height: 1.3;
}

.teacher-profile-role {
    font-size: 14px;
    font-weight: 600;
    color: var(--accent-yellow);
    margin-bottom: 4px;
}

.teacher-profile-subrole {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.teacher-info-list {
    list-style: none;
    width: 100%;
    margin: 0 0 20px;
    padding: 0;
    text-align: left;
}

.teacher-info-list li {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-subtle);
}

.teacher-info-list li:last-child {
    border-bottom: none;
}

.teacher-info-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.teacher-info-list a {
    font-size: 13px;
    color: var(--text-gray);
    text-decoration: none;
    word-break: break-word;
    transition: color 0.2s;
}

.teacher-info-list a:hover {
    color: var(--accent-yellow);
}

.teacher-portfolio-btn {
    display: inline-block;
    width: 100%;
    padding: 12px 16px;
    font-size: 14px;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    color: var(--primary-black);
    background: var(--accent-yellow);
    border-radius: 8px;
    transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
}

.teacher-portfolio-btn:hover {
    background: var(--accent-yellow-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(255, 215, 0, 0.35);
}

.teacher-profile-body {
    padding: 32px 36px;
    display: flex;
    flex-direction: column;
    gap: 0;
}

.teacher-body-heading {
    font-size: 15px;
    font-weight: 600;
    color: var(--accent-yellow);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.teacher-profile-bio {
    color: var(--text-gray);
    font-size: 15px;
    line-height: 1.65;
    margin-bottom: 14px;
}

.teacher-profile-bio:last-of-type {
    margin-bottom: 24px;
}

.teacher-profile-skills .teacher-body-heading {
    margin-bottom: 14px;
}

.teacher-experience-list {
    list-style: none;
    margin: 0 0 20px;
    padding: 0;
}

.teacher-experience-list li {
    color: var(--text-gray);
    font-size: 14px;
    line-height: 1.55;
    padding: 8px 0 8px 14px;
    border-left: 2px solid rgba(255, 215, 0, 0.25);
    margin-bottom: 8px;
}

.teacher-experience-list li strong {
    color: var(--accent-yellow);
    font-weight: 600;
}

.projects-compact-grid--three {
    grid-template-columns: 1fr;
    max-width: 640px;
}

.course-page .teacher-profile--expanded {
    border-color: var(--border-subtle);
}

.course-page .teacher-profile--expanded:hover {
    border-color: rgba(255, 215, 0, 0.2);
}

.course-goals h2,
.course-methodology h2,
.course-teacher h2,
.course-assessment h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 40px;
    color: var(--accent-yellow);
}

.goals-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.goal-card {
    background-color: var(--primary-black);
    padding: 30px;
    border-radius: 10px;
    border-left: 4px solid var(--accent-yellow);
}

.goal-card h3 {
    color: var(--accent-yellow);
    margin-bottom: 15px;
    font-size: 18px;
}

.goal-card ul {
    list-style: none;
}

.goal-card ul li {
    color: var(--text-gray);
    margin-bottom: 8px;
    padding-left: 20px;
    position: relative;
    font-size: 14px;
}

.goal-card ul li::before {
    content: "✓";
    color: var(--accent-yellow);
    position: absolute;
    left: 0;
}

.teacher-course-card {
    display: flex;
    gap: 40px;
    align-items: flex-start;
    background-color: var(--primary-black);
    padding: 40px;
    border-radius: 10px;
    max-width: 900px;
    margin: 0 auto;
}

.teacher-course-avatar {
    width: 100px;
    height: 100px;
    background-color: var(--accent-yellow);
    color: var(--primary-black);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    font-weight: bold;
    flex-shrink: 0;
}

.teacher-course-info h3 {
    color: var(--accent-yellow);
    margin-bottom: 5px;
}

.teacher-course-role {
    color: var(--text-gray);
    margin-bottom: 15px;
}

.teacher-course-contacts {
    list-style: none;
}

.teacher-course-contacts li {
    color: var(--text-gray);
    margin-bottom: 8px;
}

.teacher-course-contacts a {
    color: var(--accent-yellow);
    text-decoration: none;
}

.teacher-course-contacts a:hover {
    text-decoration: underline;
}

.assessment-list {
    max-width: 700px;
    margin: 0 auto;
    list-style: none;
}

.assessment-list li {
    color: var(--text-gray);
    margin-bottom: 12px;
    padding-left: 25px;
    position: relative;
}

.assessment-list li::before {
    content: "✓";
    color: var(--accent-yellow);
    position: absolute;
    left: 0;
}

.course-projects {
    padding: 100px 0;
    background-color: var(--primary-black);
}

.course-projects h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: var(--accent-yellow);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.project-card {
    background-color: var(--secondary-black);
    padding: 30px;
    border-radius: 10px;
    border: 2px solid transparent;
    transition: border-color 0.3s, transform 0.2s;
}

.project-card:hover {
    border-color: var(--accent-yellow);
    transform: translateY(-5px);
}

.project-card h3 {
    color: var(--accent-yellow);
    margin-bottom: 10px;
    font-size: 18px;
}

.project-card p {
    color: var(--text-gray);
    font-size: 14px;
    margin: 0;
}

.course-details-section {
    padding: 100px 0;
    background-color: var(--secondary-black);
}

.course-details-section h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: var(--accent-yellow);
}

.details-table {
    max-width: 600px;
    margin: 0 auto 40px;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    padding: 15px 20px;
    background-color: var(--primary-black);
    margin-bottom: 10px;
    border-radius: 8px;
}

.detail-label {
    color: var(--text-gray);
    font-size: 16px;
}

.detail-value {
    color: var(--accent-yellow);
    font-size: 18px;
    font-weight: bold;
}

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

/* Teachers Section - Updated */
.teachers {
    padding: 100px 0;
    background-color: var(--secondary-black);
}

.teachers h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
}

.teachers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.teacher-single {
    display: flex;
    gap: 50px;
    align-items: flex-start;
    max-width: 1000px;
    margin: 0 auto;
}

.teacher-image-large {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    flex-shrink: 0;
    overflow: hidden;
    border: 4px solid var(--accent-yellow);
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.4);
    background-color: var(--primary-black);
}

.teacher-photo-large {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 15%;
    display: block;
}

.teacher-info {
    flex: 1;
}

.teacher-info h3 {
    color: var(--accent-yellow);
    margin-bottom: 10px;
    font-size: 32px;
}

.teacher-role {
    color: var(--text-gray);
    margin-bottom: 20px;
    font-size: 18px;
    font-style: italic;
}

.teacher-bio {
    color: var(--text-gray);
    font-size: 16px;
    margin-bottom: 30px;
    line-height: 1.8;
}

.teacher-skills {
    margin-bottom: 30px;
}

.teacher-skills h4 {
    color: var(--accent-yellow);
    margin-bottom: 15px;
    font-size: 20px;
}

.skills-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skill-tag {
    background-color: var(--primary-black);
    color: var(--accent-yellow);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    border: 1px solid var(--accent-yellow);
}

.teacher-certificates {
    margin-bottom: 30px;
}

.teacher-certificates h4 {
    color: var(--accent-yellow);
    margin-bottom: 15px;
    font-size: 20px;
}

.teacher-certificates ul {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 10px;
}

.teacher-certificates li {
    color: var(--text-gray);
    padding-left: 25px;
    position: relative;
}

.teacher-certificates li:before {
    content: "📜";
    position: absolute;
    left: 0;
}

.teacher-advantages {
    margin-bottom: 30px;
}

.teacher-advantages h4 {
    color: var(--accent-yellow);
    margin-bottom: 15px;
    font-size: 20px;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
}

.advantage-item {
    display: flex;
    align-items: center;
    gap: 10px;
    background-color: var(--primary-black);
    padding: 15px;
    border-radius: 8px;
}

.advantage-icon {
    font-size: 24px;
}

.advantage-item span:last-child {
    color: var(--text-gray);
    font-size: 14px;
}

.teacher-portfolio h4 {
    color: var(--accent-yellow);
    margin-bottom: 15px;
    font-size: 20px;
}

.portfolio-link {
    color: var(--accent-yellow);
    text-decoration: none;
    font-size: 18px;
    font-weight: bold;
    transition: color 0.3s;
}

.portfolio-link:hover {
    color: var(--accent-yellow-hover);
}

.portfolio-button {
    display: inline-block;
    background-color: var(--accent-yellow);
    color: var(--primary-black);
    padding: 15px 40px;
    font-size: 18px;
    font-weight: bold;
    text-decoration: none;
    border-radius: 8px;
    transition: background-color 0.3s, transform 0.2s, box-shadow 0.3s;
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
}

.portfolio-button:hover {
    background-color: var(--accent-yellow-hover);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(255, 215, 0, 0.4);
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background-color: var(--primary-black);
}

.contact h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
}

.contact-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 50px;
}

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

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.contact-icon {
    font-size: 32px;
    min-width: 50px;
}

.contact-item h4 {
    color: var(--accent-yellow);
    margin-bottom: 5px;
}

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

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-form input,
.contact-form textarea {
    background-color: var(--secondary-black);
    border: 2px solid transparent;
    padding: 15px;
    border-radius: 5px;
    color: var(--text-white);
    font-size: 16px;
    transition: border-color 0.3s;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--accent-yellow);
}

.contact-form textarea {
    resize: vertical;
}

.submit-button {
    background-color: var(--accent-yellow);
    color: var(--primary-black);
    border: none;
    padding: 15px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    border-radius: 5px;
    transition: background-color 0.3s, transform 0.2s;
}

.submit-button:hover {
    background-color: var(--accent-yellow-hover);
    transform: translateY(-2px);
}

/* Footer */
.footer {
    background-color: var(--secondary-black);
    padding: 30px 0;
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.footer-logo {
    font-size: 24px;
    font-weight: bold;
    color: var(--text-white);
}

.footer p {
    color: var(--text-gray);
    font-size: 14px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--secondary-black);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
    }

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

    .hamburger {
        display: flex;
    }

    .hero h1 {
        font-size: 32px;
    }

    .hero p {
        font-size: 16px;
    }

    .about h2,
    .courses h2,
    .teachers h2,
    .contact h2 {
        font-size: 28px;
    }

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

    /* Course page responsive */
    .course-hero h1 {
        font-size: 32px;
    }

    .course-hero p {
        font-size: 16px;
    }

    .course-hero-price {
        font-size: 32px;
    }

    .course-meta {
        flex-direction: column;
        gap: 15px;
    }

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

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

    .skills-compact-list {
        grid-template-columns: 1fr;
        padding: 16px;
    }

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

    .assessment-item {
        flex: 1 1 100%;
    }

    .info-cards-grid {
        grid-template-columns: 1fr 1fr;
    }

    .info-card--highlight {
        grid-column: 1 / -1;
    }

    .section-title {
        font-size: 26px;
        margin-bottom: 28px;
    }

    .course-enroll-inner {
        flex-direction: column;
        text-align: center;
    }

    .course-enroll-inner .cta-button {
        width: 100%;
        max-width: 320px;
    }

    .curriculum-item {
        flex-direction: column;
        gap: 15px;
    }

    .module-number {
        width: 40px;
        height: 40px;
        font-size: 20px;
    }

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

    .details-table {
        max-width: 100%;
    }

    .detail-row {
        flex-direction: column;
        gap: 5px;
    }

    /* Teacher section responsive */
    .teacher-profile--expanded {
        grid-template-columns: 1fr;
    }

    .teacher-profile-aside {
        border-right: none;
        border-bottom: 1px solid var(--border-subtle);
        padding: 24px 20px;
    }

    .teacher-profile-body {
        padding: 24px 20px;
    }

    .teacher-course-card {
        flex-direction: column;
        text-align: center;
        padding: 30px 20px;
    }

    .teacher-profile-photo {
        margin: 0 auto;
    }

    .teacher-single {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .teacher-image-large {
        width: 150px;
        height: 150px;
    }

    .teacher-profile-photo {
        width: 100px;
        height: 100px;
    }

    .teacher-certificates ul {
        grid-template-columns: 1fr;
    }

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

/* Smooth Scroll */
html {
    scroll-behavior: smooth;
}

/* ========== Home Page ========== */
.home-page .logo {
    text-decoration: none;
    color: var(--text-white);
}

.navbar-home {
    background: rgba(26, 26, 26, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-subtle);
    padding: 16px 0;
}

.navbar-home.navbar-scrolled {
    background: rgba(26, 26, 26, 0.97);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

.nav-cta {
    display: inline-flex;
    align-items: center;
    padding: 10px 20px;
    background: var(--accent-yellow);
    color: var(--primary-black);
    font-weight: 600;
    font-size: 14px;
    text-decoration: none;
    border-radius: 8px;
    transition: background 0.2s, transform 0.2s;
}

.nav-cta:hover {
    background: var(--accent-yellow-hover);
    transform: translateY(-1px);
}

.hero-home {
    position: relative;
    padding: 140px 0 80px;
    text-align: left;
    overflow: hidden;
    background:
        radial-gradient(ellipse 70% 50% at 20% 0%, var(--glow-yellow), transparent 50%),
        radial-gradient(ellipse 50% 40% at 90% 80%, rgba(255, 215, 0, 0.06), transparent 50%),
        linear-gradient(165deg, #121212 0%, var(--primary-black) 40%, var(--secondary-black) 100%);
}

.hero-glow {
    position: absolute;
    top: -20%;
    right: -10%;
    width: 55%;
    height: 80%;
    background: radial-gradient(circle, rgba(255, 215, 0, 0.08) 0%, transparent 65%);
    pointer-events: none;
}

.hero-inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.hero-eyebrow {
    display: inline-block;
    padding: 6px 14px;
    margin-bottom: 20px;
    font-size: 13px;
    color: var(--accent-yellow);
    background: rgba(255, 215, 0, 0.1);
    border: 1px solid rgba(255, 215, 0, 0.25);
    border-radius: 999px;
}

.hero-home h1 {
    font-size: clamp(32px, 5vw, 52px);
    line-height: 1.15;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.hero-lead {
    font-size: 18px;
    color: var(--text-gray);
    max-width: 520px;
    margin: 0 0 28px;
    line-height: 1.65;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 36px;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    padding: 15px 28px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-white);
    text-decoration: none;
    border: 2px solid var(--border-subtle);
    border-radius: 8px;
    transition: border-color 0.2s, background 0.2s, color 0.2s;
}

.btn-secondary:hover {
    border-color: var(--accent-yellow);
    background: rgba(255, 215, 0, 0.08);
    color: var(--accent-yellow);
}

.hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
}

.hero-stat {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.hero-stat strong {
    font-size: 28px;
    font-weight: 800;
    color: var(--accent-yellow);
    line-height: 1;
}

.hero-stat span {
    font-size: 13px;
    color: var(--text-muted);
}

.hero-cards {
    position: relative;
    min-height: 320px;
}

.hero-float-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: linear-gradient(145deg, var(--surface-elevated), var(--secondary-black));
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
    font-weight: 600;
    color: var(--text-white);
    animation: floatCard 6s ease-in-out infinite;
}

.hero-float-icon {
    font-size: 24px;
}

.hero-float-card--1 {
    top: 10%;
    left: 5%;
    animation-delay: 0s;
}

.hero-float-card--2 {
    top: 42%;
    right: 0;
    animation-delay: 1s;
}

.hero-float-card--3 {
    bottom: 8%;
    left: 20%;
    animation-delay: 2s;
}

@keyframes floatCard {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 48px;
}

.home-page .section-title {
    margin-bottom: 12px;
}

.section-subtitle {
    color: var(--text-muted);
    font-size: 16px;
    line-height: 1.6;
}

.about-home {
    padding: 80px 0;
    background: var(--secondary-black);
}

.about-home .about-card {
    text-align: left;
    padding: 28px;
    background: linear-gradient(160deg, var(--surface-elevated), var(--primary-black));
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    border-top: 3px solid transparent;
    transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
}

.about-home .about-card:hover {
    border-top-color: var(--accent-yellow);
    border-color: rgba(255, 215, 0, 0.2);
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}

.about-card-icon {
    font-size: 36px;
    margin-bottom: 16px;
    line-height: 1;
}

.about-home .about-card h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.courses-home {
    padding: 80px 0;
}

.course-card-home {
    display: flex;
    flex-direction: column;
    padding: 0;
    overflow: hidden;
    background: linear-gradient(160deg, var(--surface-elevated), var(--secondary-black));
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
}

.course-card-home:hover {
    border-color: rgba(255, 215, 0, 0.35);
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
}

.course-card-home--featured {
    border-color: rgba(255, 215, 0, 0.4);
    box-shadow: 0 0 0 1px rgba(255, 215, 0, 0.15);
}

.course-card-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 24px 0;
}

.course-card-icon {
    font-size: 40px;
    line-height: 1;
}

.course-card-home .course-badge {
    position: static;
}

.course-card-home h3,
.course-card-home > p,
.course-card-home .course-features,
.course-card-home .course-meta-row,
.course-card-home .course-buttons {
    padding-left: 24px;
    padding-right: 24px;
}

.course-card-home h3 {
    margin-top: 16px;
    font-size: 24px;
}

.course-card-home .course-features li {
    padding-left: 20px;
    position: relative;
}

.course-card-home .course-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent-yellow);
    font-weight: bold;
}

.course-meta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 16px 0 20px;
    padding-bottom: 0;
}

.course-meta-tag {
    font-size: 12px;
    padding: 5px 10px;
    color: var(--text-gray);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
}

.course-card-home .course-price {
    display: none;
}

.course-card-home .course-buttons {
    margin-top: auto;
    padding: 0 24px 24px;
    padding-top: 8px;
}

.teachers-home {
    padding: 80px 0;
}

.teacher-profile--home {
    max-width: 1000px;
}

.teacher-profile-photo--home {
    width: 140px;
    height: 140px;
}

.contact-home {
    padding: 80px 0;
    background: var(--primary-black);
}

.contact-content--home {
    align-items: stretch;
}

.contact-card {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 20px;
    background: var(--secondary-black);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    margin-bottom: 12px;
    transition: border-color 0.2s;
}

.contact-card:hover {
    border-color: rgba(255, 215, 0, 0.25);
}

.contact-card .contact-icon {
    font-size: 28px;
    min-width: 44px;
    text-align: center;
}

.contact-card h4 {
    color: var(--accent-yellow);
    margin-bottom: 4px;
    font-size: 14px;
}

.contact-card p {
    color: var(--text-gray);
    font-size: 15px;
    margin: 0;
}

.contact-card a {
    color: var(--text-gray);
    text-decoration: none;
    transition: color 0.2s;
}

.contact-card a:hover {
    color: var(--accent-yellow);
}

.contact-form--home {
    background: linear-gradient(160deg, var(--surface-elevated), var(--secondary-black));
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    padding: 32px;
}

.contact-form-title {
    color: var(--text-white);
    font-size: 20px;
    margin-bottom: 20px;
}

.footer-home {
    padding: 48px 0 32px;
    border-top: 1px solid var(--border-subtle);
}

.footer-content--home {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 24px;
}

.footer-tagline {
    color: var(--text-muted);
    font-size: 14px;
    margin-top: 8px;
}

.footer-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
}

.footer-nav a {
    color: var(--text-gray);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}

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

.footer-copy {
    color: var(--text-muted);
    font-size: 13px;
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 992px) {
    .hero-inner {
        grid-template-columns: 1fr;
        text-align: center;
    }

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

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

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

    .hero-cards {
        display: none;
    }

    .nav-cta {
        display: none;
    }
}

@media (max-width: 768px) {
    .home-page .navbar .container {
        flex-wrap: wrap;
    }

    .footer-nav {
        flex-direction: column;
        gap: 12px;
    }
}