@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --bg: #f8fafc;
    --card-bg: #ffffff;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --radius: 12px;
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

/* DARK THEME OVERRIDES */
body.theme-dark {
    --bg: #111827;
    --card-bg: #1f2937;
    --text-main: #f9fafb;
    --text-muted: #9ca3af;
    --border: #374151;
}

/* MIDNIGHT THEME OVERRIDES */
body.theme-midnight {
    --bg: #020617;
    --card-bg: #0f172a;
    --text-main: #f1f5f9;
    --text-muted: #94a3b8;
    --border: #1e293b;
    --primary: #818cf8;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg);
    color: var(--text-main);
    margin: 0;
    transition: background 0.3s ease;
}

.container { max-width: 800px; margin: 40px auto; padding: 0 20px; }

.card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

input, select, textarea {
    width: 100%;
    padding: 12px;
    margin-bottom: 15px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text-main);
    box-sizing: border-box;
}

.btn-primary {
    background: var(--primary);
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
}

.block {
    background: rgba(0,0,0,0.02);
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 15px;
    border: 1px dashed var(--border);
    position: relative;
}

/* Multimedia responsiveness */
.img-fluid { max-width: 100%; height: auto; border-radius: 8px; margin: 10px 0; }
.video-container {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    margin: 15px 0;
    border-radius: 8px;
}
.video-container iframe {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%; border: none;
}