/* AI Tuner Institute - Main Stylesheet */

/* ===== RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    background-color: #1a1a1a;
    color: #e0e0e0;
    line-height: 1.6;
    font-size: 16px;
}

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

/* ===== NAVIGATION ===== */
.main-nav {
    background-color: #0d0d0d;
    border-bottom: 1px solid #333;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0 20px;
    flex-wrap: wrap;
}

.nav-link {
    color: #e0e0e0;
    text-decoration: none;
    padding: 20px 9px;
    display: inline-block;
    transition: all 0.3s ease;
    font-size: 13px;
    letter-spacing: 0.3px;
    text-transform: uppercase;
    border-bottom: 3px solid transparent;
}

.nav-link:hover,
.nav-link.active {
    color: #ffffff;
    border-bottom: 3px solid #4a9eff;
}

/* ===== HERO SECTION ===== */
.hero {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 60px 20px;
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
}

.hero-content {
    max-width: 900px;
}

.site-title {
    font-size: 4rem;
    font-weight: 300;
    letter-spacing: 12px;
    margin-bottom: 30px;
    color: #ffffff;
}

.tagline {
    font-size: 1.5rem;
    color: #b0b0b0;
    margin-bottom: 10px;
    font-weight: 300;
}

.mission {
    font-size: 1.3rem;
    color: white;
    margin-bottom: 50px;
    line-height: 1.8;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 15px 40px;
    text-decoration: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
    display: inline-block;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-primary {
    background-color: #4a9eff;
    color: #ffffff;
    border: 2px solid #4a9eff;
}

.btn-primary:hover {
    background-color: #3a8eef;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(74, 158, 255, 0.4);
}

.btn-secondary {
    background-color: transparent;
    color: #4a9eff;
    border: 2px solid #4a9eff;
}

.btn-secondary:hover {
    background-color: #4a9eff;
    color: #ffffff;
    transform: translateY(-2px);
}

/* ===== INTRO SECTION ===== */
.intro-section {
    padding: 80px 20px;
    background-color: #222;
}

.intro-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 40px;
    color: #ffffff;
    font-weight: 300;
}

.intro-text {
    max-width: 800px;
    margin: 0 auto 25px;
    font-size: 1.2rem;
    line-height: 1.8;
    color: #d0d0d0;
}

/* ===== PILLARS SECTION ===== */
.pillars-section {
    padding: 80px 20px;
    background-color: #1a1a1a;
}

.pillars-section .container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.pillar {
    padding: 40px;
    background-color: #252525;
    border-left: 4px solid #4a9eff;
    border-radius: 4px;
    transition: transform 0.3s ease;
}

.pillar:hover {
    transform: translateY(-5px);
}

.pillar h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: #ffffff;
}

.pillar p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #c0c0c0;
}

/* ===== CONTENT PAGES ===== */
.page-header {
    background-color: #222;
    padding: 60px 20px;
    text-align: center;
    border-bottom: 1px solid #333;
}

.page-header h1 {
    font-size: 3rem;
    color: #ffffff;
    font-weight: 300;
    letter-spacing: 4px;
}

.content-section {
    padding: 60px 20px;
}

.content-section h2 {
    font-size: 2rem;
    color: #ffffff;
    margin: 40px 0 20px;
    font-weight: 400;
}

.content-section h3 {
    font-size: 1.5rem;
    color: #4a9eff;
    margin: 30px 0 15px;
    font-weight: 400;
}

.content-section p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 20px;
    color: #d0d0d0;
}

.content-section ul {
    margin: 20px 0 20px 40px;
    line-height: 2;
}

.content-section li {
    font-size: 1.1rem;
    color: #d0d0d0;
    margin-bottom: 10px;
}

/* ===== COURSE CARDS ===== */
.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    margin-top: 40px;
}

.course-card {
    background-color: #252525;
    border: 1px solid #333;
    border-radius: 8px;
    padding: 40px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(74, 158, 255, 0.2);
}

.course-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
    gap: 20px;
}

.course-card h3 {
    font-size: 1.6rem;
    color: #ffffff;
    margin: 0 0 10px 0;
    flex: 1;
}

.btn-apply {
    background-color: #4a9eff;
    color: #ffffff;
    padding: 10px 24px;
    text-decoration: none;
    border-radius: 4px;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.btn-apply:hover {
    background-color: #3a8eef;
    transform: translateY(-2px);
}

.course-subtitle {
    font-size: 1.1rem;
    color: #b0b0b0;
    margin-bottom: 20px;
    line-height: 1.6;
}

.course-meta {
    display: grid;
    gap: 8px;
    margin: 20px 0;
    font-size: 0.95rem;
    color: #a0a0a0;
}

.course-meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.course-section-title {
    font-size: 1rem;
    color: #4a9eff;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin: 25px 0 15px;
    font-weight: 600;
}

.course-card ul {
    margin: 10px 0 10px 20px;
    list-style-type: disc;
}

.course-card li {
    font-size: 1rem;
    color: #d0d0d0;
    margin-bottom: 8px;
    line-height: 1.6;
}

.course-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 10px;
}

.skill-tag {
    background-color: #1a1a1a;
    color: #4a9eff;
    padding: 6px 14px;
    border-radius: 4px;
    font-size: 0.9rem;
    border: 1px solid #333;
}

.course-footer {
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid #333;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.95rem;
    color: #a0a0a0;
}

/* ===== FORMS ===== */
.form-container {
    max-width: 700px;
    margin: 40px auto;
    background-color: #252525;
    padding: 40px;
    border-radius: 8px;
    border: 1px solid #333;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #e0e0e0;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    background-color: #1a1a1a;
    border: 1px solid #444;
    border-radius: 4px;
    color: #e0e0e0;
    font-size: 1rem;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #4a9eff;
    background-color: #222;
}

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

.required {
    color: #ff6b6b;
}

.form-note {
    font-size: 0.9rem;
    color: #999;
    margin-top: 5px;
}

.btn-submit {
    background-color: #4a9eff;
    color: #ffffff;
    padding: 15px 50px;
    border: none;
    border-radius: 4px;
    font-size: 1.1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-submit:hover {
    background-color: #3a8eef;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(74, 158, 255, 0.4);
}

/* ===== FAQ ===== */
.faq-item {
    background-color: #252525;
    padding: 30px;
    margin-bottom: 20px;
    border-radius: 8px;
    border-left: 4px solid #4a9eff;
}

.faq-question {
    font-size: 1.3rem;
    color: #ffffff;
    margin-bottom: 15px;
    font-weight: 500;
}

.faq-answer {
    font-size: 1.05rem;
    line-height: 1.8;
    color: #d0d0d0;
}

/* ===== FOOTER ===== */
footer {
    background-color: #0d0d0d;
    padding: 40px 20px;
    text-align: center;
    border-top: 1px solid #333;
    margin-top: 80px;
}

footer p {
    color: #999;
    margin: 10px 0;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .site-title {
        font-size: 2.5rem;
        letter-spacing: 6px;
    }
    
    .tagline {
        font-size: 1.2rem;
    }
    
    .mission {
        font-size: 1.1rem;
    }
    
    .nav-link {
        padding: 15px 12px;
        font-size: 12px;
    }
    
    .pillars-section .container {
        grid-template-columns: 1fr;
    }
    
    .course-grid {
        grid-template-columns: 1fr;
    }
    
    .course-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .btn-apply {
        align-self: stretch;
        text-align: center;
    }
    
    .form-container {
        padding: 25px;
    }
}

@media (max-width: 480px) {
    .nav-container {
        flex-direction: column;
        padding: 0;
    }
    
    .nav-link {
        width: 100%;
        text-align: center;
        border-bottom: 1px solid #333;
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: 15px;
    }
    
    .btn {
        width: 100%;
        text-align: center;
    }
}

/* ========================================= */
/* SPECIALIZATIONS PAGES - NEW STYLES BELOW */
/* ========================================= */

/* SPECIALIZATIONS PAGE STYLES */

.hero-section {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    padding: 80px 20px 60px;
    text-align: center;
    color: white;
}

.hero-section h1 {
    font-size: 3em;
    margin-bottom: 10px;
    font-weight: 300;
    letter-spacing: 8px;
}

.hero-section p {
    font-size: 1.3em;
    margin-bottom: 40px;
    opacity: 0.9;
}

.search-container {
    max-width: 600px;
    margin: 0 auto;
}

#searchInput {
    width: 100%;
    padding: 15px 20px;
    font-size: 1.1em;
    border: none;
    border-radius: 4px;
    background: #252525;
    color: #e0e0e0;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

#searchInput:focus {
    outline: none;
    box-shadow: 0 4px 20px rgba(74, 158, 255, 0.4);
    background: #2a2a2a;
}

.specializations-grid {
    max-width: 1200px;
    margin: 60px auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.specialization-card {
    background: #252525;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #333;
}

.specialization-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(74, 158, 255, 0.2);
}

.specialization-card h3 {
    color: #ffffff;
    font-size: 1.5em;
    margin-bottom: 15px;
    font-weight: 400;
}

.specialization-card p {
    color: #b0b0b0;
    line-height: 1.6;
    margin-bottom: 20px;
}

/* SPECIALIZATION DETAIL PAGES */

.specialization-detail {
    max-width: 1200px;
    margin: 40px auto;
    padding: 0 20px;
}

.detail-header {
    text-align: center;
    margin-bottom: 50px;
    padding: 40px 20px;
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    color: white;
    border-radius: 8px;
}

.detail-header h1 {
    font-size: 2.5em;
    margin-bottom: 15px;
    font-weight: 300;
    letter-spacing: 4px;
}

.specialization-tagline {
    font-size: 1.3em;
    opacity: 0.9;
    color: #b0b0b0;
}

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

.main-column h2 {
    color: #ffffff;
    font-size: 1.8em;
    margin: 30px 0 15px 0;
    font-weight: 400;
}

.main-column p {
    color: #d0d0d0;
    line-height: 1.8;
    margin-bottom: 20px;
}

.main-column strong {
    color: #4a9eff;
}

.outcomes-list {
    list-style: none;
    padding: 0;
}

.outcomes-list li {
    padding: 12px 0 12px 30px;
    position: relative;
    color: #d0d0d0;
    line-height: 1.6;
}

.outcomes-list li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #4a9eff;
    font-weight: bold;
    font-size: 1.2em;
}

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

.info-box {
    background: #252525;
    padding: 25px;
    border-radius: 8px;
    border: 1px solid #333;
}

.info-box h3 {
    color: #ffffff;
    margin-bottom: 15px;
    font-size: 1.3em;
    font-weight: 400;
}

.info-box p {
    color: #d0d0d0;
    line-height: 1.6;
    margin-bottom: 10px;
}

.info-box .btn-primary {
    width: 100%;
    text-align: center;
    margin-top: 15px;
}

.cta-section {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    color: white;
    padding: 80px 20px;
    text-align: center;
    margin: 80px 0 0 0;
}

.cta-section h2 {
    font-size: 2.5em;
    margin-bottom: 20px;
    color: #ffffff;
    font-weight: 300;
}

.cta-section p {
    font-size: 1.2em;
    margin-bottom: 30px;
    opacity: 0.9;
    color: #d0d0d0;
}

/* RESPONSIVE */

@media (max-width: 768px) {
    .detail-content {
        grid-template-columns: 1fr;
    }
    
    .hero-section h1 {
        font-size: 2em;
        letter-spacing: 4px;
    }
    
    .detail-header h1 {
        font-size: 1.8em;
        letter-spacing: 2px;
    }
    
    .specializations-grid {
        grid-template-columns: 1fr;
    }
}