/* =========================================================
   AUTH PAGES — Split-Screen Login / Register
   ========================================================= */

/* ── Auth Layout ── */
.auth-page {
    min-height: 100vh;
    background: var(--bg-main);
    position: relative;
}

.auth-page .auth-particles {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
}

.auth-split-layout,
.auth-split {
    display: flex;
    min-height: 100vh;
    position: relative;
    z-index: 1;
}

/* ── Visual Side (Left) ── */
.auth-visual {
    flex: 0 0 40%;
    max-width: 40%;
    background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #1e293b 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--space-10);
    position: relative;
    overflow: hidden;
}

.auth-visual::before {
    content: '';
    position: absolute;
    top: -20%;
    right: -20%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.auth-visual::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -15%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 8s ease-in-out infinite reverse;
}

.auth-visual-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 400px;
}

.auth-visual .auth-logo-lg {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    border-radius: var(--radius-xl);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 1.8rem;
    margin-bottom: var(--space-6);
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.3);
}

.auth-visual h2 {
    font-size: var(--text-3xl);
    font-weight: 700;
    color: #ffffff;
    margin-bottom: var(--space-3);
    letter-spacing: -0.02em;
}

.auth-visual p {
    font-size: var(--text-base);
    color: rgba(255, 255, 255, 0.5);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-8);
}

.auth-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    text-align: left;
}

.auth-feature-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
}

.auth-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    list-style: none;
    text-align: left;
}

.auth-features li {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.6);
}

.auth-features li i {
    color: var(--accent);
    font-size: 0.8rem;
    width: 20px;
    text-align: center;
    flex-shrink: 0;
}

.auth-feature-item i {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 0.8rem;
    margin-top: 2px;
    flex-shrink: 0;
}

.auth-feature-item span {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.4;
}

/* ── Form Side (Right) ── */
.auth-form-panel {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-8);
    background: var(--bg-card);
}

.auth-form-inner,
.auth-container {
    width: 100%;
    max-width: 420px;
    margin: 0 auto;
}

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

.auth-container .auth-brand h1 {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: var(--space-2);
}

.auth-container .auth-brand p {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

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

.auth-field label {
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    cursor: default;
    display: block;
}

.auth-field input,
.auth-container input[type="email"],
.auth-container input[type="password"],
.auth-container input[type="text"],
.auth-container input[type="number"] {
    width: 100%;
    padding: 0.7rem 0.9rem;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-main);
    color: var(--text-main);
    font-size: var(--text-sm);
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.auth-field input::placeholder,
.auth-container input::placeholder {
    color: var(--text-faint);
}

.auth-field input:focus,
.auth-container input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.12);
    background: var(--bg-card);
}

.auth-btn {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--accent);
    color: #ffffff;
    border: none;
    border-radius: var(--radius-sm);
    font-size: var(--text-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    margin-top: var(--space-2);
}

.auth-btn:hover {
    background: var(--accent-dark);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.auth-btn:active {
    transform: scale(0.98);
}

.auth-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.auth-footer {
    margin-top: var(--space-6);
    text-align: center;
    font-size: var(--text-sm);
    color: var(--text-muted);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.auth-footer a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-fast);
}

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

.auth-portals {
    margin-top: var(--space-4);
    text-align: center;
    font-size: var(--text-xs);
    color: var(--text-faint);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-4);
}

.auth-portals a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.auth-portals a:hover {
    color: var(--accent);
}

/* ── Step Indicator ── */
.step-indicator {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: var(--space-6);
}

.step-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--border);
    transition: all var(--transition-base);
    cursor: default;
}

.step-dot.active {
    background: var(--accent);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.15);
    transform: scale(1.2);
}

.step-dot.done {
    background: var(--success);
}

/* ── Step Panels ── */
.step-panel {
    display: none;
    animation: fadeUp 0.3s ease;
}

.step-panel.active {
    display: block;
}

/* ── Error Message ── */
.error-msg {
    color: var(--danger);
    font-size: var(--text-xs);
    margin-top: var(--space-2);
    display: none;
    padding: var(--space-2) var(--space-3);
    background: var(--danger-bg);
    border-left: 3px solid var(--danger);
    border-radius: var(--radius-xs);
}

/* ── Info Text ── */
.info-text {
    font-size: var(--text-xs);
    color: var(--text-muted);
    margin-top: var(--space-4);
    padding: var(--space-3);
    background: var(--bg-main);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--accent);
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
    line-height: 1.5;
}

.info-text i {
    flex-shrink: 0;
    margin-top: 2px;
}

/* ── Back Link ── */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    margin-top: var(--space-4);
    font-size: var(--text-sm);
    color: var(--accent);
    cursor: pointer;
    transition: all var(--transition-fast);
    background: none;
    border: none;
    font-family: inherit;
}

.back-link:hover {
    color: var(--accent-dark);
    transform: translateX(-2px);
}

/* ── Status Message ── */
.status-message {
    padding: var(--space-3);
    border-radius: var(--radius-sm);
    font-size: var(--text-sm);
    margin: var(--space-3) 0;
    text-align: center;
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* ── Success Panel ── */
.success-panel {
    display: none;
    text-align: center;
    animation: fadeUp 0.35s ease-out;
}

.success-icon {
    width: 64px;
    height: 64px;
    background: var(--success-bg);
    color: var(--success);
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    margin-bottom: var(--space-4);
}

.success-panel h3 {
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--space-2);
    color: var(--text-main);
}

.success-panel p {
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin-bottom: var(--space-6);
    line-height: var(--leading-relaxed);
}

/* ── Particles (decorative) ── */
.auth-particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: 0;
}

.particle {
    position: absolute;
    bottom: -10px;
    background: rgba(59, 130, 246, 0.3);
    border-radius: 50%;
    animation: particleFloat linear infinite;
}

@keyframes particleFloat {
    0% {
        transform: translateY(0) scale(1);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100vh) scale(0.3);
        opacity: 0;
    }
}

/* ── Responsive ── */
@media (max-width: 900px) {
    .auth-page {
        flex-direction: column;
    }

    .auth-visual {
        flex: none;
        width: 100%;
        max-width: 100%;
        padding: var(--space-8) var(--space-6);
        min-height: auto;
    }

    .auth-features {
        display: none;
    }

    .auth-form-panel {
        flex: 1;
        padding: var(--space-6);
    }
}

@media (max-width: 480px) {
    .auth-form-panel {
        padding: var(--space-4);
    }

    .auth-container {
        max-width: 100%;
    }

    .auth-visual {
        padding: var(--space-6) var(--space-4);
    }

    .auth-visual h2 {
        font-size: var(--text-2xl);
    }
}