/* static/css/style.css - Dark, modern, teen-friendly theme for kbug.org */

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

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #e0e0e0;
    background: #0f0f0f;
    background-image: linear-gradient(135deg, #0f0f0f 0%, #13151a 100%);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

header {
    background: rgba(26, 26, 26, 0.9);
    backdrop-filter: blur(12px);
    padding: 1.5rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0,0,0,0.6);
}

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

header h1 {
    font-size: 2.2rem;
    margin: 0;
    font-weight: 800;
    letter-spacing: -1px;
}

header h1 a {
    color: #fff;
    text-decoration: none;
    background: linear-gradient(90deg, #00ff9d, #00b894);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

nav ul {
    display: flex;
    gap: 1.5rem;
    list-style: none;
    margin: 0;
}

nav a.btn {
    padding: 0.6rem 1.4rem;
    background: linear-gradient(135deg, #00ff9d, #00b894);
    color: #000;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 255, 157, 0.3);
}

nav a.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 255, 157, 0.5);
    background: linear-gradient(135deg, #00ffb3, #00d68f);
}

main {
    padding: 4rem 0 6rem;
}

.landing-hero {
    text-align: center;
    padding: 8rem 0 10rem;
    background: linear-gradient(135deg, rgba(0, 255, 157, 0.1), rgba(0, 184, 148, 0.1));
    border-radius: 24px;
    margin-bottom: 4rem;
}

.landing-hero h1 {
    font-size: 5rem;
    font-weight: 900;
    background: linear-gradient(90deg, #00ff9d, #00b894);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
}

.landing-hero p {
    font-size: 1.6rem;
    color: #b0b0b0;
    max-width: 700px;
    margin: 0 auto 3rem;
}

.action-buttons {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2.5rem;
    background: linear-gradient(135deg, #00ff9d, #00b894);
    color: #000;
    border-radius: 50px;
    font-size: 1.4rem;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 8px 25px rgba(0, 255, 157, 0.4);
}

.btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 255, 157, 0.6);
}

.btn-register {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
    color: white;
}

footer {
    text-align: center;
    padding: 3rem 0;
    background: #0f0f0f;
    margin-top: 6rem;
    color: #666;
    font-size: 0.95rem;
}

/* Mobile */
@media (max-width: 768px) {
    .landing-hero h1 {
        font-size: 3.5rem;
    }
}