:root {
    color-scheme: light dark;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.5;
    font-size: 16px;
    --bg: #10121a;
    --surface: #1b1f2c;
    --surface-light: #ffffff;
    --accent: #6c5ce7;
    --accent-dark: #4c3cb7;
    --text: #f0f4ff;
    --text-dark: #1d2233;
    --error: #ff7675;
    --success: #55efc4;
}

body {
    margin: 0;
    min-height: 100vh;
    background: radial-gradient(circle at top, rgba(108, 92, 231, 0.2), transparent 60%),
        radial-gradient(circle at bottom, rgba(85, 239, 196, 0.15), transparent 55%),
        var(--bg);
    color: var(--text);
    display: flex;
    align-items: center;
    justify-content: center;
}

.layout {
    width: min(480px, 90vw);
}

.card {
    background: rgba(27, 31, 44, 0.8);
    backdrop-filter: blur(16px);
    border-radius: 16px;
    padding: 32px;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.4);
}

.card h1 {
    margin-top: 0;
    margin-bottom: 0.5rem;
    font-size: 2rem;
}

.subtitle {
    margin: 0 0 2rem 0;
    color: rgba(240, 244, 255, 0.75);
}

form {
    display: grid;
    gap: 1.25rem;
}

.field {
    display: grid;
    gap: 0.4rem;
}

.field span {
    font-weight: 600;
}

.field input {
    height: 42px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(16, 18, 26, 0.6);
    color: var(--text);
    padding: 0 0.75rem;
    font-size: 1rem;
}

.field input:focus {
    outline: 2px solid var(--accent);
    border-color: transparent;
}

.hint {
    font-size: 0.8rem;
    color: rgba(240, 244, 255, 0.6);
}

.primary {
    height: 48px;
    border-radius: 10px;
    border: none;
    cursor: pointer;
    font-weight: 700;
    font-size: 1rem;
    color: white;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 18px 40px rgba(108, 92, 231, 0.35);
}

.note {
    margin-top: 2rem;
    font-size: 0.95rem;
    color: rgba(240, 244, 255, 0.7);
}

.note a {
    color: var(--success);
    font-weight: 600;
}

#status {
    margin-top: 1.5rem;
    min-height: 1.5rem;
    font-weight: 600;
}

.status-success {
    color: var(--success);
}

.status-error {
    color: var(--error);
}

.oauth-section {
    margin-bottom: 2rem;
}

.oauth-title {
    text-align: center;
    font-size: 0.9rem;
    color: rgba(240, 244, 255, 0.7);
    margin-bottom: 1rem;
}

.oauth-buttons {
    display: grid;
    gap: 0.75rem;
}

.oauth-button {
    height: 48px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(16, 18, 26, 0.6);
    color: var(--text);
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.15s ease;
    text-decoration: none;
}

.oauth-button:hover {
    background: rgba(16, 18, 26, 0.8);
    border-color: var(--accent);
    transform: translateY(-1px);
}

.oauth-button.github {
    border-color: rgba(255, 255, 255, 0.3);
}

.oauth-button.github:hover {
    background: rgba(36, 41, 47, 0.8);
    border-color: #24292e;
}

.oauth-button.discord {
    border-color: rgba(88, 101, 242, 0.5);
}

.oauth-button.discord:hover {
    background: rgba(88, 101, 242, 0.2);
    border-color: #5865f2;
}

.oauth-button.linuxdo {
    border-color: rgba(85, 239, 196, 0.5);
}

.oauth-button.linuxdo:hover {
    background: rgba(85, 239, 196, 0.1);
    border-color: #55efc4;
}

.divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 1.5rem 0;
    color: rgba(240, 244, 255, 0.5);
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.divider span {
    padding: 0 1rem;
    font-size: 0.9rem;
}

@media (max-width: 480px) {
    .card {
        padding: 24px;
    }

    .card h1 {
        font-size: 1.6rem;
    }
}