/* ============================================================
   AUTH.CSS — Login & Register pages
   ============================================================ */

/* ── Variables ── */
:root {
    --auth-bg-from:   #0f0c29;
    --auth-bg-mid:    #1a1040;
    --auth-bg-to:     #24243e;
    --brand-primary:  #6366f1;
    --brand-secondary:#8b5cf6;
    --card-bg:        rgba(255,255,255,0.05);
    --card-border:    rgba(255,255,255,0.10);
    --input-bg:       rgba(255,255,255,0.06);
    --input-border:   rgba(255,255,255,0.12);
    --input-focus:    rgba(99,102,241,0.5);
    --text-primary:   #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted:     #64748b;
    --error-color:    #f87171;
    --success-color:  #34d399;
    --font:           'Inter', -apple-system, sans-serif;
}

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

.auth-body {
    font-family: var(--font);
    background: linear-gradient(135deg, var(--auth-bg-from), var(--auth-bg-mid), var(--auth-bg-to));
    min-height: 100vh;
    display: flex;
    align-items: stretch;
    color: var(--text-primary);
    overflow: hidden;
}

/* ── Layout ── */
.auth-wrapper {
    display: flex;
    width: 100%;
    min-height: 100vh;
}

/* ── Brand Panel (left) ── */
.auth-brand-panel {
    flex: 1;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    background: linear-gradient(145deg, rgba(99,102,241,0.18) 0%, rgba(139,92,246,0.10) 100%);
    border-right: 1px solid var(--card-border);
    overflow: hidden;
    min-width: 380px;
}

.brand-content {
    position: relative;
    z-index: 2;
    max-width: 360px;
}

.brand-logo {
    margin-bottom: 1.25rem;
    filter: drop-shadow(0 8px 24px rgba(99,102,241,0.5));
}

.brand-name {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, #fff 0%, #c4b5fd 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.brand-tagline {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.brand-features {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    padding: 0.75rem 1rem;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    transition: background 0.2s;
}

.feature-item:hover { background: rgba(255,255,255,0.07); }

.feature-icon { font-size: 1.1rem; }

/* Decorative orbs */
.brand-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.25;
    z-index: 1;
    animation: float 6s ease-in-out infinite;
}

.brand-orb-1 {
    width: 300px; height: 300px;
    background: var(--brand-primary);
    top: -80px; right: -80px;
}

.brand-orb-2 {
    width: 200px; height: 200px;
    background: var(--brand-secondary);
    bottom: -60px; left: -60px;
    animation-delay: -3s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50%       { transform: translateY(-20px); }
}

/* ── Form Panel (right) ── */
.auth-form-panel {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
    padding: 2rem;
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 2.5rem;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 25px 50px rgba(0,0,0,0.3);
    animation: slideUp 0.4s ease;
}

.auth-card-register { max-width: 520px; }

@keyframes slideUp {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
}

.auth-card-header { margin-bottom: 2rem; }

.auth-card-header h2 {
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0.35rem;
}

.auth-card-header p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ── Alert ── */
.alert-success {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(52,211,153,0.12);
    border: 1px solid rgba(52,211,153,0.3);
    color: var(--success-color);
    border-radius: 10px;
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    margin-bottom: 1.25rem;
}

.alert-icon { font-weight: 700; }

.validation-summary {
    background: rgba(248,113,113,0.10);
    border: 1px solid rgba(248,113,113,0.25);
    color: var(--error-color);
    border-radius: 10px;
    padding: 0.75rem 1rem;
    font-size: 0.8rem;
    margin-bottom: 1.25rem;
}

.validation-summary:empty { display: none; }
.validation-summary ul { margin: 0; padding-left: 1.25rem; }

/* ── Form ── */
.form-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 1.1rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.45rem;
    letter-spacing: 0.02em;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 13px;
    color: var(--text-muted);
    display: flex;
    pointer-events: none;
}

.form-input {
    width: 100%;
    padding: 0.7rem 2.8rem;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 10px;
    color: var(--text-primary);
    font-family: var(--font);
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}

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

.form-input:focus {
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 3px var(--input-focus);
    background: rgba(255,255,255,0.08);
}

.toggle-password {
    position: absolute;
    right: 12px;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    display: flex;
    border-radius: 6px;
    transition: color 0.2s;
}

.toggle-password:hover,
.toggle-password.active { color: var(--brand-primary); }

.field-error {
    font-size: 0.78rem;
    color: var(--error-color);
    margin-top: 0.3rem;
}

.field-error:empty { display: none; }

/* ── Role info badge ── */
.role-badge-info {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    background: rgba(99,102,241,0.10);
    border: 1px solid rgba(99,102,241,0.25);
    border-radius: 10px;
    padding: 0.65rem 1rem;
    font-size: 0.82rem;
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
}

.role-badge-icon { font-size: 1rem; }

/* ── Buttons ── */
.btn-primary {
    width: 100%;
    padding: 0.8rem;
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
    border: none;
    border-radius: 10px;
    color: #fff;
    font-family: var(--font);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: opacity 0.2s, transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 16px rgba(99,102,241,0.35);
    margin-top: 0.5rem;
}

.btn-primary:hover {
    opacity: 0.92;
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(99,102,241,0.45);
}

.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

.btn-spinner { display: inline-flex; align-items: center; }

.spin {
    animation: spin 0.8s linear infinite;
}

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

/* ── Footer ── */
.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.auth-link {
    color: var(--brand-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.auth-link:hover { color: var(--brand-secondary); }

/* ── Responsive ── */
@media (max-width: 768px) {
    .auth-brand-panel { display: none; }
    .auth-form-panel  { padding: 1.5rem; }
    .auth-card        { padding: 1.75rem; }
    .form-row         { grid-template-columns: 1fr; }
}