:root {
    --accent: #ff3e3e;
    --accent-hover: #ff1a1a;
    --bg: #0a0a0a;
    --surface: #161616;
    --surface-light: #252525;
    --text: #f5f5f7;
    --text-dim: #a1a1a6;
}

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: 'Inter', -apple-system, sans-serif;
    line-height: 1.6;
    margin: 0;
    -webkit-font-smoothing: antialiased;
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 2rem; }

/* Navigation */
.top-nav {
    display: flex; justify-content: space-between; align-items: center;
    padding: 1.5rem 2rem; background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(20px); position: sticky; top: 0; z-index: 1000;
    border-bottom: 1px solid var(--surface-light);
}
.logo { font-weight: 800; letter-spacing: -1px; text-decoration: none; color: #fff; font-size: 1.2rem; }

/* Typography */
h1, h2, h3 { font-weight: 800; letter-spacing: -0.02em; line-height: 1.1; }
h1 { font-size: 4rem; margin: 4rem 0 2rem; }
.highlight { color: var(--accent); }

/* Components */
.card {
    background: var(--surface); border-radius: 20px; padding: 2.5rem;
    border: 1px solid var(--surface-light); transition: all 0.3s ease;
}
.card:hover { border-color: var(--accent); transform: translateY(-5px); }

.btn-main {
    background: var(--accent); color: #fff; padding: 1.2rem 2.5rem;
    border-radius: 12px; text-decoration: none; font-weight: 700;
    display: inline-block; transition: 0.2s;
}
.btn-main:hover { background: var(--accent-hover); box-shadow: 0 0 25px rgba(255, 62, 62, 0.4); }

.video-wrapper {
    position: relative; padding-bottom: 56.25%; height: 0;
    border-radius: 24px; overflow: hidden; margin: 3rem 0;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
}
.video-wrapper iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }

footer { padding: 4rem 0; text-align: center; color: var(--text-dim); border-top: 1px solid var(--surface-light); }