/* ========================================
   Guitar Lessons Islington - Styles
   Dark & Bold Theme with Gold Accents
   ======================================== */

/* CSS Variables */
:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #111111;
    --bg-surface: #1a1a1a;
    --bg-surface-hover: #222222;
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --text-muted: #888888;
    --accent: #ffd700;
    --accent-hover: #ffed4a;
    --accent-dark: #b8860b;
    --border-color: #333333;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.6);
    --transition: all 0.3s ease;
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

ul {
    list-style: none;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

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

.lead {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 32px;
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 2px solid transparent;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background: var(--accent);
    color: var(--bg-primary);
    border-color: var(--accent);
}

.btn-primary:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--text-primary);
}

.btn-secondary:hover {
    background: var(--text-primary);
    color: var(--bg-primary);
}

.btn-outline {
    background: transparent;
    color: var(--accent);
    border-color: var(--accent);
}

.btn-outline:hover {
    background: var(--accent);
    color: var(--bg-primary);
}

.btn-nav {
    padding: 10px 24px;
    font-size: 0.875rem;
}

.btn-full {
    width: 100%;
}

/* ========================================
   Navigation
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 15px 0;
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--accent);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-menu a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: url('../images/hero-live.jpg') center center / cover no-repeat;
    padding: 100px 20px;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(10, 10, 10, 0.7) 0%,
        rgba(10, 10, 10, 0.5) 50%,
        rgba(10, 10, 10, 0.9) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    color: var(--text-secondary);
    margin: 1.5rem 0 2.5rem;
}

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

/* Hero Video */
.hero-video-wrapper {
    position: relative;
    width: 100%;
    max-width: 700px;
    margin: 40px auto;
    padding-bottom: 39.375%;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg), 0 0 60px rgba(255, 215, 0, 0.2);
    border: 2px solid var(--accent);
    background: var(--bg-surface);
}

.hero-video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

@media (max-width: 768px) {
    .hero-video-wrapper {
        max-width: 100%;
        padding-bottom: 56.25%;
    }
}

/* ========================================
   Sections
   ======================================== */
.section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px;
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* ========================================
   About Section
   ======================================== */
.about {
    background: var(--bg-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-image img {
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
}

.about-image::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    right: 20px;
    bottom: 20px;
    border: 3px solid var(--accent);
    border-radius: 8px;
    z-index: -1;
}

.about-content p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.about-content strong {
    color: var(--text-primary);
}

.about-philosophy {
    margin-top: 2rem;
    padding: 1.5rem;
    background: var(--bg-surface);
    border-left: 4px solid var(--accent);
    border-radius: 0 8px 8px 0;
}

.about-philosophy blockquote {
    font-size: 1.1rem;
    font-style: italic;
    color: var(--text-primary);
}

/* ========================================
   Services Section
   ======================================== */
.services {
    background: var(--bg-primary);
}

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

.service-card {
    background: var(--bg-surface);
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent);
}

.service-image {
    width: 100%;
    height: 180px;
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 20px;
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.service-card:hover .service-image img {
    transform: scale(1.1);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: var(--bg-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.service-icon svg {
    width: 40px;
    height: 40px;
    color: var(--accent);
}

.service-card h3 {
    color: var(--text-primary);
    margin-bottom: 10px;
}

.service-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* ========================================
   Pricing Section
   ======================================== */
.pricing {
    background: var(--bg-secondary);
}

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

.pricing-card {
    background: var(--bg-surface);
    border-radius: 12px;
    padding: 40px 30px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
}

.pricing-card:hover {
    border-color: var(--accent);
}

.pricing-card.featured {
    border-color: var(--accent);
    transform: scale(1.05);
    box-shadow: var(--shadow-lg), 0 0 40px rgba(255, 215, 0, 0.1);
}

.featured-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: var(--bg-primary);
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.pricing-card h3 {
    color: var(--text-secondary);
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 20px;
}

.price {
    margin-bottom: 30px;
}

.price .currency {
    font-size: 1.5rem;
    vertical-align: top;
    color: var(--accent);
}

.price .amount {
    font-size: 4rem;
    font-family: var(--font-heading);
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
}

.price .period {
    font-size: 1rem;
    color: var(--text-muted);
}

.pricing-features {
    margin-bottom: 30px;
    text-align: left;
}

.pricing-features li {
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding-left: 25px;
    position: relative;
}

.pricing-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: bold;
}

.pricing-note {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 40px;
    font-style: italic;
}

/* ========================================
   Testimonials Section
   ======================================== */
.testimonials {
    background: var(--bg-primary);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.testimonial-card {
    background: var(--bg-surface);
    border-radius: 12px;
    padding: 30px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.testimonial-card:hover {
    border-color: var(--accent);
}

.stars {
    color: var(--accent);
    font-size: 1.25rem;
    margin-bottom: 15px;
    letter-spacing: 2px;
}

.testimonial-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 20px;
}

.testimonial-author {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}

.testimonial-author strong {
    color: var(--text-primary);
}

.testimonial-author span {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ========================================
   Videos Section
   ======================================== */
.videos {
    background: var(--bg-secondary);
}

.videos-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.video-placeholder {
    aspect-ratio: 16/9;
    background: var(--bg-surface);
    border-radius: 12px;
    border: 2px dashed var(--border-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    transition: var(--transition);
}

.video-placeholder:hover {
    border-color: var(--accent);
}

.video-icon {
    width: 80px;
    height: 80px;
    background: var(--bg-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.video-icon svg {
    width: 40px;
    height: 40px;
    color: var(--accent);
}

.video-placeholder p {
    color: var(--text-primary);
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.video-placeholder span {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Video embed styles (for when videos are added) */
.video-embed {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    border-radius: 12px;
}

.video-embed iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.video-caption {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-top: 0.5rem;
    text-align: center;
}

/* ========================================
   Contact Section
   ======================================== */
.contact {
    background: var(--bg-primary);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h2 {
    margin-bottom: 1.5rem;
}

.contact-info > p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.location-info {
    margin-bottom: 2rem;
}

.location-info h3 {
    color: var(--accent);
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1rem;
}

.transport {
    background: var(--bg-surface);
    border-radius: 12px;
    padding: 20px;
    margin-top: 1rem;
}

.transport h4 {
    color: var(--text-primary);
    font-size: 0.9rem;
    margin: 15px 0 10px;
}

.transport h4:first-child {
    margin-top: 0;
}

.transport ul {
    padding-left: 0;
}

.transport li {
    color: var(--text-secondary);
    font-size: 0.9rem;
    padding: 5px 0;
    padding-left: 20px;
    position: relative;
}

.transport li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent);
}

.transport p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.online-lessons {
    background: var(--bg-surface);
    border-radius: 12px;
    padding: 20px;
    border-left: 4px solid var(--accent);
}

.online-lessons h3 {
    color: var(--text-primary);
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.online-lessons p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0;
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--bg-surface);
    border-radius: 12px;
    padding: 40px;
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.1);
}

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

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 30px;
    margin-bottom: 40px;
}

.footer-brand h3 {
    color: var(--accent);
    font-size: 1.5rem;
    margin-bottom: 5px;
}

.footer-brand p {
    color: var(--text-muted);
}

.footer-links {
    display: flex;
    gap: 30px;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

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

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ========================================
   Responsive Design
   ======================================== */

/* Tablet */
@media (max-width: 992px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-image {
        max-width: 400px;
        margin: 0 auto;
    }

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

    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

    .pricing-card.featured {
        transform: none;
    }

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

/* Mobile */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--bg-primary);
        flex-direction: column;
        padding: 30px 20px;
        gap: 20px;
        border-bottom: 1px solid var(--border-color);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .hero {
        min-height: 90vh;
        padding: 120px 20px 80px;
    }

    .section {
        padding: 60px 0;
    }

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

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

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

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }

    .about-image::before {
        display: none;
    }

    .contact-form-wrapper {
        padding: 25px;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .hero-cta {
        flex-direction: column;
    }

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

    .price .amount {
        font-size: 3rem;
    }
}

/* ========================================
   Animations
   ======================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* Scroll Animation Classes (activated by JS) */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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