/* ============================================
   ProCode EduPulse — Auth Pages Styles
   ============================================ */

/* ── Auth Page Layout ── */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-6);
    position: relative;
    overflow: hidden;
}

.auth-page::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(0, 120, 212, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(0, 188, 242, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 80%, rgba(0, 120, 212, 0.04) 0%, transparent 50%);
    animation: authBgPulse 12s ease-in-out infinite alternate;
    pointer-events: none;
}

@keyframes authBgPulse {
    0% { transform: rotate(0deg) scale(1); }
    100% { transform: rotate(3deg) scale(1.05); }
}

/* ── Auth Card ── */
.auth-card {
    width: 100%;
    max-width: 440px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: var(--space-10);
    position: relative;
    z-index: 1;
    backdrop-filter: blur(20px);
    box-shadow:
        0 4px 6px rgba(0, 0, 0, 0.1),
        0 20px 40px rgba(0, 0, 0, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
    animation: authCardIn 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes authCardIn {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.97);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.auth-card-header {
    text-align: center;
    margin-bottom: var(--space-8);
}

.auth-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    margin-bottom: var(--space-6);
}

.auth-logo img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
}

.auth-logo-text {
    font-size: var(--text-2xl);
    font-weight: 800;
    letter-spacing: -0.02em;
}

.auth-logo-text .pro {
    color: var(--brand-primary-light);
}

.auth-card-title {
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--space-2);
    color: var(--text-primary);
}

.auth-card-subtitle {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

/* ── Auth Form ── */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.auth-form .input-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.auth-form .input-group label {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.auth-form .input-group label i {
    color: var(--text-muted);
    font-size: 12px;
}

.auth-form .input {
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-sm);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    transition: all 0.2s ease;
}

.auth-form .input:focus {
    outline: none;
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 3px rgba(0, 120, 212, 0.15);
}

.auth-form .input::placeholder {
    color: var(--text-muted);
}

.auth-form .input.error {
    border-color: var(--color-error);
    box-shadow: 0 0 0 3px rgba(255, 71, 87, 0.15);
}

.auth-error-msg {
    font-size: var(--text-xs);
    color: var(--color-error);
    display: none;
    align-items: center;
    gap: var(--space-1);
    margin-top: var(--space-1);
}

.auth-error-msg.visible {
    display: flex;
}

/* ── Submit Button ── */
.auth-submit-btn {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-sm);
    font-weight: 700;
    border: none;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-primary-dark, #5a4fcf));
    color: white;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
}

.auth-submit-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(0, 120, 212, 0.4);
}

.auth-submit-btn:active {
    transform: translateY(0);
}

.auth-submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.auth-submit-btn .spinner-sm {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

/* ── Divider ── */
.auth-divider {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--text-muted);
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

/* ── Google Button ── */
.auth-google-btn {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-sm);
    font-weight: 600;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
}

.auth-google-btn:hover {
    border-color: var(--text-muted);
    background: var(--bg-primary);
}

.auth-google-btn svg {
    width: 18px;
    height: 18px;
}

/* ── Auth Footer ── */
.auth-footer {
    text-align: center;
    margin-top: var(--space-6);
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.auth-footer a {
    color: var(--brand-primary-light);
    font-weight: 600;
    text-decoration: none;
    transition: color 0.2s ease;
}

.auth-footer a:hover {
    color: var(--brand-primary);
    text-decoration: underline;
}

/* ── Alert Message ── */
.auth-alert {
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    display: none;
    align-items: center;
    gap: var(--space-2);
    animation: fadeIn 0.3s ease;
}

.auth-alert.visible {
    display: flex;
}

.auth-alert.error {
    background: rgba(255, 71, 87, 0.1);
    border: 1px solid rgba(255, 71, 87, 0.2);
    color: var(--color-error);
}

.auth-alert.success {
    background: rgba(46, 213, 115, 0.1);
    border: 1px solid rgba(46, 213, 115, 0.2);
    color: var(--color-success);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ── User Menu (Navbar) ── */
.user-menu {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.user-avatar-sm {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--brand-primary), #00BCF2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--text-xs);
    color: white;
    text-transform: uppercase;
}

.user-name-display {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-primary);
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.logout-btn {
    background: none;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    color: var(--text-muted);
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.logout-btn:hover {
    border-color: var(--color-error);
    color: var(--color-error);
}

/* ── Responsive ── */
@media (max-width: 480px) {
    .auth-card {
        padding: var(--space-6);
    }

    .user-name-display {
        display: none;
    }
}