/* ===== AUTH SCREENS ===== */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.auth-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 48px;
    width: 100%;
    max-width: 440px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.auth-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-family: 'Space Mono', monospace;
    font-size: 20px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
}

.auth-logo img {
    width: 36px;
    height: 36px;
    border-radius: 8px;
}

.auth-logo .brand-accent {
    color: var(--accent);
}

.auth-subtitle {
    text-align: center;
    color: var(--text-dim);
    font-size: 14px;
    margin-bottom: 32px;
}

.auth-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
}

.auth-tab {
    flex: 1;
    padding: 12px;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-dim);
    font-size: 14px;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s;
}

.auth-tab:first-child { border-radius: 8px 0 0 8px; }
.auth-tab:last-child { border-radius: 0 8px 8px 0; }

.auth-tab.active {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--accent-text);
}

.auth-tab:hover:not(.active) {
    border-color: var(--accent);
    color: var(--accent);
}

.auth-back-link {
    display: block;
    text-align: center;
    color: var(--text-dim);
    font-size: 14px;
    margin-top: 20px;
    cursor: pointer;
    transition: color 0.2s;
}

.auth-back-link:hover {
    color: var(--accent);
}

.btn-logout {
    background: transparent !important;
    border: 1px solid var(--border) !important;
    color: var(--text-dim) !important;
}

.btn-logout:hover {
    border-color: var(--error) !important;
    color: var(--error) !important;
    background: rgba(255, 107, 107, 0.1) !important;
}

.header-user {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 12px;
}

.header-user-name {
    color: var(--text);
    font-weight: 500;
}

.code-input {
    font-family: 'Space Mono', monospace;
    font-size: 24px;
    text-align: center;
    letter-spacing: 8px;
    padding: 16px;
}

.message {
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 14px;
    margin-bottom: 20px;
    display: none;
}

.message.error {
    display: block;
    background: rgba(255, 107, 107, 0.1);
    border: 1px solid rgba(255, 107, 107, 0.3);
    color: var(--error);
}

.message.success {
    display: block;
    background: rgba(0, 212, 170, 0.1);
    border: 1px solid rgba(0, 212, 170, 0.3);
    color: var(--success);
}

.hidden { display: none !important; }

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    display: inline-block;
    margin-right: 8px;
    vertical-align: middle;
}

@keyframes spin { to { transform: rotate(360deg); } }