:root {
    --gold: #C9A44C;
    --dark: #0F0F0F;
    --light: #FFFFFF;
    --paper: #F6F2E8;
    --accent: #1F6B4A;
    --accent-soft: #8FB9A8;
    --border: #E0DACD;
    --text-muted: #8A857A;
    --shadow: rgba(0, 0, 0, 0.08);
    --footer-color: #0C0A07;
    --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -moz-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    text-size-adjust: 100%;
    overflow-x: hidden;
}

body {
    background-color: var(--paper);
    color: var(--dark);
    font-family: 'Inter', sans-serif;
    line-height: 1.7;
    font-weight: 400;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    width: 100%;
    position: relative;
}

h1, h2, h3, h4 {
    font-family: 'Cormorant Garamond', serif;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.hero {
    height: 100vh;
    min-height: 600px;
    max-height: 1200px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 20px;
    background: linear-gradient(135deg, rgba(15, 15, 15, 0.92) 0%, rgba(15, 15, 15, 0.78) 100%), url('../images/banner2.jpeg') center/cover no-repeat;
    color: var(--light);
    text-align: center;
    padding: clamp(80px, 10vw, 120px) 20px 60px;
    overflow: hidden;
}

.hero-content {
    max-width: 900px;
    width: 100%;
    position: relative;
    z-index: 2;
    padding: clamp(20px, 4vw, 40px);
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2.2vw, 1.4rem);
    font-weight: 300;
    letter-spacing: 0.3em;
    margin-bottom: clamp(25px, 4vw, 35px);
    text-transform: uppercase;
    color: var(--accent-soft);
}

.hero-divider {
    width: 180px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
    margin: clamp(20px, 3vw, 30px) auto;
    opacity: 0.7;
}

.hero-text {
    font-size: clamp(1rem, 1.8vw, 1.15rem);
    max-width: 700px;
    margin: 0 auto clamp(20px, 3vw, 30px);
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 300;
}

.hero-logo {
    width: 280px;
    max-width: 90%;
    z-index: 10;
}

.gallery-section {
    padding: clamp(70px, 9vw, 110px) clamp(20px, 5vw, 40px);
    background: transparent;
}

.section-header {
    text-align: center;
    margin-bottom: clamp(60px, 8vw, 90px);
}

.section-title {
    font-size: clamp(2.8rem, 6vw, 3.8rem);
    color: var(--dark);
    margin-bottom: 25px;
    position: relative;
    display: inline-block;
    font-weight: 700;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 140px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

.section-description {
    font-size: clamp(1.05rem, 1.8vw, 1.15rem);
    color: var(--text-muted);
    max-width: 720px;
    margin: 35px auto 0;
    line-height: 1.8;
    font-weight: 300;
}

.instruments-slider-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
}

.instruments-slider-container {
    overflow: hidden;
    width: 100%;
    padding: 20px 5px;
}

.instruments-track {
    display: flex;
    gap: 30px;
    transition: transform 0.5s cubic-bezier(0.25, 1, 0.5, 1);
    width: 100%;
}

.instrument-card {
    flex: 0 0 calc((100% - 60px) / 3);
    position: relative;
    border-radius: 18px;
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
    height: 420px;
    background: var(--light);
    box-shadow: 0 12px 40px var(--shadow);
    display: flex;
    flex-direction: column;
}

.instrument-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.15);
}

.instrument-image-container {
    flex: 1;
    overflow: hidden;
    position: relative;
}

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

.instrument-card:hover .instrument-image {
    transform: scale(1.08);
}

.instrument-content {
    padding: clamp(30px, 4vw, 40px);
    background: linear-gradient(to bottom, rgba(15, 15, 15, 0.95), rgba(15, 15, 15, 0.98));
    color: var(--light);
    transition: var(--transition);
    min-height: 150px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.instrument-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
    opacity: 0.3;
}

.instrument-name {
    font-size: clamp(1.6rem, 3vw, 2.1rem);
    margin-bottom: 8px;
    color: var(--gold);
    font-weight: 600;
    letter-spacing: 0.02em;
}

.instrument-details {
    font-size: clamp(0.95rem, 1.6vw, 1.05rem);
    opacity: 0;
    transform: translateY(12px);
    transition: var(--transition);
    color: var(--accent-soft);
    max-height: 0;
    overflow: hidden;
    line-height: 1.7;
    font-weight: 300;
}

.instrument-card:hover .instrument-details {
    opacity: 1;
    transform: translateY(0);
    max-height: 130px;
    margin-top: 18px;
    padding-top: 8px;
}

.slider-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--light);
    border: 1px solid var(--gold);
    color: var(--gold);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    flex-shrink: 0;
    font-size: 1.2rem;
    z-index: 10;
}

.slider-btn:hover {
    background: var(--gold);
    color: var(--light);
    transform: scale(1.1);
    box-shadow: 0 5px 15px rgba(201, 164, 76, 0.3);
}

.slider-btn:disabled {
    opacity: 0.5;
    cursor: default;
    transform: none;
    box-shadow: none;
}

.media-channels-section {
    padding: clamp(70px, 9vw, 110px) clamp(20px, 5vw, 40px);
    position: relative;
    overflow: hidden;
    width: 100%;
    background: linear-gradient(to bottom, var(--paper) 0%, #f9f6ef 100%);
}

.channels-header {
    text-align: center;
    margin-bottom: clamp(60px, 8vw, 90px);
}

.channels-title {
    font-size: clamp(2.8rem, 6vw, 3.8rem);
    color: var(--dark);
    margin-bottom: 25px;
    font-weight: 700;
}

.channels-description {
    font-size: clamp(1.05rem, 1.8vw, 1.15rem);
    color: var(--text-muted);
    max-width: 720px;
    margin: 20px auto 0;
    line-height: 1.8;
    font-weight: 300;
}

.channels-loop {
    width: 100%;
    overflow: hidden;
    padding: 50px 0;
    position: relative;
}

.channels-loop::before,
.channels-loop::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: clamp(60px, 8vw, 120px);
    z-index: 2;
    pointer-events: none;
}

.channels-loop::before {
    left: 0;
    background: linear-gradient(to right, var(--paper) 30%, transparent 100%);
}

.channels-loop::after {
    right: 0;
    background: linear-gradient(to left, var(--paper) 30%, transparent 100%);
}

.channels-track {
    display: flex;
    animation: scrollChannels 40s linear infinite;
    width: max-content;
    gap: 0;
}

@keyframes scrollChannels {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

.channel-box {
    flex: 0 0 auto;
    width: clamp(200px, 22vw, 280px);
    height: clamp(90px, 12vw, 130px);
    margin: 0 clamp(15px, 2vw, 30px);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: clamp(15px, 2vw, 25px);
    transition: var(--transition);
    background: var(--light);
    box-shadow: 0 8px 25px var(--shadow);
    position: relative;
}

.channel-box:hover {
    transform: translateY(-6px) scale(1.02);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

.channel-logo {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    filter: grayscale(0.2) contrast(1.1);
    transition: var(--transition);
}

.channel-box:hover .channel-logo {
    filter: grayscale(0) contrast(1.2);
}

.timeline-section {
    padding: clamp(70px, 9vw, 110px) clamp(20px, 5vw, 40px);
    background: var(--paper);
    position: relative;
}

.timeline {
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: calc(100% - 40px);
    background: linear-gradient(transparent, var(--gold), transparent);
    top: 20px;
}

.timeline-item {
    display: flex;
    justify-content: space-between;
    align-items: stretch;
    margin-bottom: 70px;
    position: relative;
    min-height: 200px;
}

.timeline-item:nth-child(odd) {
    flex-direction: row;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-content {
    width: 46%;
    padding: 35px;
    background: var(--light);
    border-radius: 18px;
    box-shadow: 0 12px 40px var(--shadow);
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.timeline-item::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 22px;
    height: 22px;
    background: var(--gold);
    border-radius: 50%;
    z-index: 2;
    border: 4px solid var(--light);
    box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.05);
}

.timeline-year {
    font-size: 0.95rem;
    color: var(--accent);
    font-weight: 500;
    letter-spacing: 0.15em;
    margin-bottom: 15px;
    display: inline-block;
    padding-bottom: 6px;
    text-transform: uppercase;
}

.timeline-content h3 {
    font-size: 1.9rem;
    margin-bottom: 15px;
    color: var(--dark);
    font-weight: 600;
    line-height: 1.3;
}

.timeline-content p {
    font-size: 1.12rem;
    line-height: 1.7;
    color: var(--text-muted);
    font-weight: 300;
    flex: 1;
}

.videos-section {
    padding: clamp(70px, 9vw, 110px) clamp(20px, 5vw, 40px);
    background: linear-gradient(135deg, var(--paper) 0%, #f0ece0 100%);
}

.video-gallery-container {
    max-width: 1200px;
    margin: 0 auto;
}

.videos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: clamp(30px, 4vw, 50px);
    margin-bottom: 40px;
}

.video-item {
    background: var(--dark);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.25);
    transition: var(--transition);
}

.video-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 35px 70px rgba(0, 0, 0, 0.3);
}

.video-wrapper {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    cursor: pointer;
}

.video-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--light);
    transition: all 0.3s ease;
    z-index: 2;
}

.video-background i {
    font-size: 4rem;
    color: var(--gold);
    margin-bottom: 20px;
    opacity: 0.9;
    position: relative;
    z-index: 1;
}

.play-text {
    font-size: 1.6rem;
    font-weight: 300;
    letter-spacing: 0.02em;
    margin-bottom: 10px;
    position: relative;
    z-index: 1;
}

.click-play {
    font-size: 1rem;
    color: var(--accent-soft);
    opacity: 0.8;
    position: relative;
    z-index: 1;
}

.video-player {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.video-player video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-controls {
    position: absolute;
    bottom: 20px;
    right: 20px;
    z-index: 3;
    display: flex;
    gap: 10px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.video-wrapper:hover .video-controls,
.video-wrapper.playing .video-controls {
    opacity: 1;
}

.control-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.7);
    border: none;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.control-btn:hover {
    background: var(--gold);
    transform: scale(1.1);
}

.volume-slider {
    width: 100px;
    background: rgba(0, 0, 0, 0.7);
    border-radius: 20px;
    padding: 10px 15px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: white;
    opacity: 0;
    transition: all 0.3s ease;
    transform: translateX(10px);
}

.volume-slider.active {
    opacity: 1;
    transform: translateX(0);
}

.volume-slider input {
    width: 100%;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 2px;
    outline: none;
}

.volume-slider input::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--gold);
    cursor: pointer;
}

.volume-slider input::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--gold);
    cursor: pointer;
    border: none;
}

.video-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.video-overlay.active {
    opacity: 1;
    visibility: visible;
}

.video-overlay-content {
    width: 90%;
    height: 90%;
    position: relative;
    display: flex;
    flex-direction: column;
}

.video-overlay-content video {
    width: 100%;
    height: 100%;
    object-fit: contain;
    flex: 1;
}

.close-overlay {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: var(--gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    cursor: pointer;
    font-size: 1.5rem;
    transition: all 0.3s ease;
    z-index: 10001;
}

.close-overlay:hover {
    background: var(--accent);
    transform: scale(1.1);
}

.engineering-section {
    padding: clamp(70px, 9vw, 110px) clamp(20px, 5vw, 40px);
    background: var(--paper);
}

.engineering-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: clamp(40px, 6vw, 60px);
    max-width: 1200px;
    margin: 0 auto;
    align-items: center;
}

.engineering-content {
    padding: 45px;
    background: var(--light);
    border-radius: 22px;
    box-shadow: 0 15px 45px var(--shadow);
}

.engineering-content h3 {
    font-size: 2.2rem;
    margin-bottom: 30px;
    color: var(--dark);
    font-weight: 600;
    line-height: 1.3;
}

.engineering-content p {
    font-size: 1.15rem;
    line-height: 1.8;
    color: var(--text-muted);
    margin-bottom: 35px;
    font-weight: 300;
}

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

.engineering-list li {
    margin-bottom: 18px;
    padding-left: 38px;
    position: relative;
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--text-muted);
    font-weight: 300;
}

.engineering-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 24px;
    background: var(--accent-soft);
    border-radius: 50%;
}

.engineering-list li::after {
    content: '✓';
    position: absolute;
    left: 7px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--light);
    font-size: 0.9rem;
    font-weight: bold;
}

.engineering-image {
    height: 600px;
    position: relative;
    border-radius: 22px;
    overflow: hidden;
    box-shadow: 0 18px 45px rgba(0, 0, 0, 0.18);
}

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

.engineering-slider-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
}

.engineering-image .engineering-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    z-index: 1;
}

.engineering-slide.active {
    opacity: 1;
    z-index: 2;
}

.engineering-slider-dots {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    gap: 10px;
}

.engineering-dot {
    width: 10px;
    height: 10px;
    background-color: rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    cursor: pointer;
    transition: background-color 0.3s;
}

.engineering-dot.active {
    background-color: #fff;
}

.contact-section {
    padding: clamp(90px, 11vw, 130px) clamp(20px, 5vw, 40px);
    background: linear-gradient(135deg, rgba(15, 15, 15, 0.92) 0%, rgba(15, 15, 15, 0.78) 100%), url('../images/musical.jpg') center/cover no-repeat;
    color: var(--light);
    text-align: center;
}

.contact-title {
    font-size: clamp(2.8rem, 6vw, 3.8rem);
    margin-bottom: 25px;
    color: var(--gold);
    font-weight: 700;
}

.contact-description {
    font-size: clamp(1.05rem, 1.8vw, 1.15rem);
    max-width: 650px;
    margin: 0 auto 70px;
    color: var(--accent-soft);
    line-height: 1.8;
    font-weight: 300;
}

.contact-grid {
    display: flex;
    justify-content: center;
    max-width: 100%;
    margin: 0 auto;
}

.contact-card {
    padding: 50px 40px;
    background: rgba(255, 255, 255, 0.07);
    backdrop-filter: blur(12px);
    border-radius: 18px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0;
    width: auto;
    min-width: 300px;
}

.contact-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
    opacity: 0.3;
}

.contact-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.contact-icon {
    font-size: 2.8rem;
    color: var(--gold);
    margin-bottom: 20px;
    opacity: 0.9;
    transition: var(--transition);
}

.contact-label {
    font-size: 1.1rem;
    margin-bottom: 10px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent-soft);
    font-weight: 400;
}

.contact-value {
    font-size: 1.25rem;
    font-weight: 300;
    color: var(--light);
    white-space: nowrap;
    line-height: 1.6;
    text-decoration: none;
    display: block;
    transition: color 0.3s ease;
}

.contact-value:hover {
    color: var(--gold);
}

.footer {
    background: var(--footer-color);
    color: var(--light);
    padding: clamp(60px, 7vw, 80px) clamp(20px, 5vw, 40px) 30px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 60px;
    margin-bottom: 60px;
}

.footer-logo {
    width: 120px;
    margin-bottom: 20px;
}

.footer-info p {
    font-size: 1.05rem;
    color: var(--accent-soft);
    line-height: 1.8;
    font-weight: 300;
}

.footer-social {
    display: flex;
    gap: 18px;
    margin-top: 30px;
    justify-content: flex-start;
}

.social-link {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.08);
    color: white;
}

.social-link:nth-child(1) {
    background: linear-gradient(45deg, #405DE6, #5851DB, #833AB4, #C13584, #E1306C, #FD1D1D);
}

.social-link:nth-child(2) {
    background: linear-gradient(45deg, #EA4335, #FBBC05);
}

.social-link:nth-child(3) {
    background: linear-gradient(45deg, #25D366, #128C7E);
}

.social-link:nth-child(4) {
    background: linear-gradient(45deg, #FF0000, #FF0000);
}

.social-link:hover {
    transform: translateY(-6px) scale(1.1);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.3);
}

.footer-copyright {
    text-align: center;
    padding-top: 35px;
    color: var(--accent-soft);
    font-size: 0.95rem;
    font-weight: 300;
}

.fade-in {
    opacity: 0;
    transform: translateY(35px);
    transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 992px) {
    .timeline::before {
        left: 30px;
    }

    .timeline-item {
        flex-direction: column !important;
        align-items: flex-start;
        margin-left: 60px;
        margin-bottom: 50px;
        min-height: auto;
    }

    .timeline-content {
        width: calc(100% - 60px);
        margin-bottom: 0;
        padding: 30px;
        min-height: 180px;
    }

    .timeline-item::after {
        left: -30px;
        width: 20px;
        height: 20px;
    }

    .timeline-content h3 {
        font-size: 1.7rem;
        margin-bottom: 12px;
    }

    .timeline-content p {
        font-size: 1.05rem;
        line-height: 1.6;
    }

    .channels-track {
        animation-duration: 50s;
    }

    .channels-loop::before,
    .channels-loop::after {
        width: 50px;
    }

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

    .close-overlay {
        top: 15px;
        right: 15px;
        width: 45px;
        height: 45px;
    }

    .instrument-card {
        flex: 0 0 calc((100% - 30px) / 2);
    }
}

@media (max-width: 768px) {
    .hero {
        min-height: 550px;
        padding-top: 100px;
    }

    .hero-content {
        padding: 30px 20px;
        margin-top: 0;
    }

    .hero-subtitle {
        font-size: 1.05rem;
        letter-spacing: 0.2em;
    }

    .hero-logo {
        width: 280px;
    }

    .section-title,
    .channels-title,
    .contact-title {
        font-size: 2.4rem;
    }

    .video-background i {
        font-size: 3rem;
    }

    .play-text {
        font-size: 1.4rem;
    }

    .channel-box {
        width: 180px;
        height: 90px;
        margin: 0 15px;
        padding: 15px;
    }

    .channels-loop::before,
    .channels-loop::after {
        width: 40px;
    }

    .instrument-card {
        height: 380px;
    }

    .engineering-image {
        height: 550px;
    }

    .timeline-content {
        padding: 25px;
    }

    .contact-card {
        padding: 35px 25px;
    }

    .volume-slider {
        width: 80px;
        padding: 8px 12px;
    }

    .control-btn {
        width: 35px;
        height: 35px;
    }

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

    .close-overlay {
        top: 10px;
        right: 10px;
        width: 40px;
        height: 40px;
        font-size: 1.3rem;
    }

    .instruments-slider-wrapper {
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
    }

    .slider-btn {
        position: static;
        transform: none;
        order: 2;
        margin: 10px 5px;
    }

    .slider-btn:hover {
        transform: none;
    }

    .instruments-slider-container {
        width: 100%;
        order: 1;
    }

    .instrument-card {
        flex: 0 0 100%;
    }
}

@media (max-width: 480px) {
    .hero-subtitle {
        font-size: 0.95rem;
        letter-spacing: 0.15em;
    }

    .section-title,
    .channels-title,
    .contact-title {
        font-size: 2rem;
    }

    .channel-box {
        width: 160px;
        height: 80px;
        margin: 0 12px;
        padding: 12px;
    }

    .channels-track {
        animation-duration: 60s;
    }

    .channels-loop::before,
    .channels-loop::after {
        width: 30px;
    }

    .timeline-content {
        padding: 22px;
        width: calc(100% - 40px);
        min-height: 160px;
    }

    .timeline-item::after {
        width: 18px;
        height: 18px;
    }

    .timeline-content h3 {
        font-size: 1.5rem;
    }

    .timeline-content p {
        font-size: 1rem;
    }

    .video-background i {
        font-size: 2.5rem;
    }

    .play-text {
        font-size: 1.2rem;
    }

    .click-play {
        font-size: 0.9rem;
    }

    .control-btn {
        width: 32px;
        height: 32px;
    }

    .volume-slider {
        width: 70px;
        padding: 6px 10px;
    }

    .contact-card {
        padding: 30px 20px;
    }

    .close-overlay {
        top: 8px;
        right: 8px;
        width: 35px;
        height: 35px;
        font-size: 1.2rem;
    }
}