:root {
    --bg-main: #121417;
    --bg-card: #1c2026;
    --bg-input: #15181e;
    --text-primary: #ffffff;
    --text-secondary: #9da5b4;
    --accent-red: #ff3b30;
    --accent-yellow: #ffcc00;
    --border-color: #2c323d;
    --font-heading: 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Навигация и Респонсив Лого */
header {
    background-color: rgba(18, 20, 23, 0.95);
    border-bottom: 2px solid var(--accent-red);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(8px);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

/* Динамично разпъване на логото според екрана */
.logo img {
    width: clamp(180px, 25vw, 320px);
    height: auto;
    max-height: 90px;
    object-fit: contain;
    display: block;
    transition: width 0.3s ease;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    list-style: none;
    align-items: center;
}

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    text-transform: uppercase;
    transition: color 0.2s ease;
}

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

/* Hero Секция */
.hero {
    max-width: 1100px;
    margin: 0 auto;
    padding: 4rem 1.5rem;
    text-align: center;
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 900;
    text-transform: uppercase;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.hero h1 span {
    color: var(--accent-red);
}

.hero p {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 750px;
    margin: 0 auto 2rem auto;
}

.btn-primary {
    background-color: var(--accent-red);
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-weight: 800;
    text-transform: uppercase;
    padding: 1rem 2rem;
    border: none;
    border-radius: 4px;
    font-size: 1.1rem;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    box-shadow: 0 4px 15px rgba(255, 59, 48, 0.35);
    transition: transform 0.2s ease, background-color 0.2s ease;
}

.btn-primary:hover {
    background-color: #e03228;
    transform: translateY(-2px);
}

/* Видео Галерия */
.gallery-section {
    background-color: #171a1f;
    padding: 4rem 1.5rem;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

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

.section-title {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    text-transform: uppercase;
    margin-bottom: 2rem;
    border-left: 5px solid var(--accent-yellow);
    padding-left: 1rem;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.video-card {
    background-color: var(--bg-card);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.video-wrapper {
    position: relative;
    width: 100%;
    padding-top: 56.25%;
    background-color: #000;
}

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

.video-info {
    padding: 1.25rem;
}

.video-info h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

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

/* Форма за Сигнали */
.upload-section {
    padding: 4rem 1.5rem;
}

.upload-card {
    max-width: 700px;
    margin: 0 auto;
    background-color: var(--bg-card);
    padding: 2.5rem;
    border-radius: 8px;
    border: 1px solid var(--accent-red);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 0.95rem;
}

.form-control {
    width: 100%;
    padding: 0.85rem;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 4px;
    font-size: 1rem;
    font-family: var(--font-body);
}

.form-control:focus {
    border-color: var(--accent-yellow);
    outline: none;
}

/* Прогрес Бар */
.progress-bar-container {
    width: 100%;
    height: 12px;
    background-color: var(--bg-input);
    border-radius: 6px;
    overflow: hidden;
    margin-top: 1rem;
    display: none;
    border: 1px solid var(--border-color);
}

.progress-bar {
    width: 0%;
    height: 100%;
    background-color: var(--accent-yellow);
    transition: width 0.2s ease;
}

.status-message {
    margin-top: 1rem;
    font-size: 0.95rem;
    font-weight: 600;
    text-align: center;
}

/* Футър */
footer {
    background-color: #0b0c0e;
    padding: 2rem 1.5rem;
    text-align: center;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* Мобилна Адаптивност */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        text-align: center;
    }
    
    .logo img {
        width: clamp(200px, 60vw, 280px);
    }
    
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .upload-card {
        padding: 1.5rem;
    }
}