:root {
    --bg: #080808;
    --surface: #0f0f0f;
    --border: #1e1e1e;
    --border-hover: #2e2e2e;
    --accent: #e8e8e8;
    --accent-dim: #666;
    --green: #3ba935;
    --green-dim: rgba(59,169,53,0.15);
    --red: #c53b3b;
    --text: #d0d0d0;
    --text-muted: #505050;
    --font-sans: 'DM Sans', 'Inter', system-ui, -apple-system, sans-serif;
    --font-serif: 'Lora', 'Source Serif 4', Georgia, serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', ui-monospace, monospace;
}

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

body {
    font-family: var(--font-mono);
    background: var(--bg);
    color: var(--text);
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

canvas#matrix-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    opacity: 0.35;
}

.auth-wrap {
    position: relative;
    z-index: 1;
    width: 360px;
}

.auth-header {
    text-align: center;
    margin-bottom: 32px;
}

.auth-header img {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    margin-bottom: 14px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.auth-header h1 {
    font-family: var(--font-sans);
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: #fff;
}

.auth-header p {
    font-size: 11px;
    color: var(--text-muted);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-top: 4px;
}

.auth-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px 28px 24px;
}

.form-group {
    margin-bottom: 12px;
}

.form-label {
    display: block;
    font-size: 10px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 6px;
}

input[type="text"],
input[type="password"] {
    width: 100%;
    background: #0a0a0a;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 11px 14px;
    color: #e0e0e0;
    font-family: var(--font-mono);
    font-size: 13px;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

input[type="text"]:focus,
input[type="password"]:focus {
    border-color: #333;
    box-shadow: 0 0 0 3px rgba(255,255,255,0.04);
}

input::placeholder { color: #2a2a2a; }

.invite-divider {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 16px 0 12px;
}

.invite-divider::before,
.invite-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
}

.invite-divider span {
    font-size: 10px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--text-muted);
    white-space: nowrap;
}

.terms-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 14px 0;
}

.terms-row input[type="checkbox"] {
    width: 15px;
    height: 15px;
    accent-color: var(--green);
    cursor: pointer;
    flex-shrink: 0;
}

.terms-row span {
    font-size: 11px;
    color: var(--text-muted);
}

.terms-row a {
    color: var(--green);
    text-decoration: none;
}

.btn-primary {
    width: 100%;
    padding: 12px;
    background: #fff;
    color: #000;
    border: none;
    border-radius: 8px;
    font-family: var(--font-sans);
    font-weight: 700;
    font-size: 13px;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
    margin-top: 4px;
}

.btn-primary:hover { background: #e8e8e8; }
.btn-primary:active { transform: scale(0.98); }

.toggle-line {
    text-align: center;
    margin-top: 18px;
    font-size: 11px;
    color: var(--text-muted);
}

.toggle-line span {
    color: var(--accent);
    cursor: pointer;
    font-weight: 500;
    text-decoration: underline;
    text-underline-offset: 3px;
}

#msg {
    margin-top: 14px;
    font-size: 12px;
    min-height: 18px;
    text-align: center;
    transition: color 0.2s;
}

#msg.error   { color: #e05555; }
#msg.success { color: var(--green); }