/* NexusERP Auth Pages — auth.css
   Mobile-first layout. Desktop: split-panel (brand | form).
   CSS custom properties used throughout for theming. */

:root {
    --nx-primary:    #2563eb;
    --nx-primary-dk: #1d4ed8;
    --nx-accent:     #06b6d4;
    --nx-dark:       #1a1a2e;
    --nx-dark2:      #16213e;
    --nx-text:       #1e293b;
    --nx-muted:      #64748b;
    --nx-border:     #e2e8f0;
    --nx-bg:         #f8fafc;
    --nx-white:      #ffffff;
    --nx-error:      #dc2626;
    --nx-success:    #16a34a;
    --nx-warning:    #d97706;
    --nx-radius:     10px;
    --nx-shadow:     0 4px 24px rgba(0,0,0,.10);
    --nx-transition: 0.2s ease;
}

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

body.auth-body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: var(--nx-bg);
    color: var(--nx-text);
    min-height: 100vh;
    display: flex;
    align-items: stretch;
}

/* ── Wrapper: two-column on desktop ─────────────────────────────────────────── */
.auth-wrapper {
    display: flex;
    width: 100%;
    min-height: 100vh;
}

/* ── Brand panel (left) ──────────────────────────────────────────────────────── */
.auth-brand {
    background: linear-gradient(135deg, var(--nx-dark) 0%, var(--nx-dark2) 60%, #0f3460 100%);
    color: #fff;
    width: 45%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 50px;
    position: relative;
    overflow: hidden;
}

.auth-brand::before {
    content: '';
    position: absolute;
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(37,99,235,.35) 0%, transparent 70%);
    top: -100px; right: -100px;
    border-radius: 50%;
}

.auth-brand-inner { position: relative; z-index: 1; max-width: 360px; }

.auth-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 30px;
}

.logo-icon {
    font-size: 38px;
    color: var(--nx-accent);
    line-height: 1;
}

.logo-text {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, #fff, var(--nx-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.auth-tagline {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 10px;
    color: rgba(255,255,255,.95);
}

.auth-sub {
    font-size: 14px;
    color: rgba(255,255,255,.6);
    margin-bottom: 30px;
    line-height: 1.6;
}

.auth-features {
    list-style: none;
    margin-bottom: 30px;
}

.auth-features li {
    padding: 6px 0;
    font-size: 14px;
    color: rgba(255,255,255,.8);
    display: flex;
    align-items: center;
    gap: 8px;
}

.auth-features li::before {
    content: '✓';
    color: var(--nx-accent);
    font-weight: 700;
    font-size: 12px;
    background: rgba(6,182,212,.15);
    padding: 1px 5px;
    border-radius: 3px;
}

.auth-flags {
    font-size: 22px;
    letter-spacing: 6px;
    margin-top: 10px;
}

/* ── Form panel (right) ──────────────────────────────────────────────────────── */
.auth-form-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 30px;
    background: var(--nx-white);
}

.auth-form-box {
    width: 100%;
    max-width: 420px;
}

.auth-form-box h2 {
    font-size: 26px;
    font-weight: 700;
    color: var(--nx-dark);
    margin-bottom: 6px;
}

.auth-form-box .form-subtitle {
    color: var(--nx-muted);
    font-size: 14px;
    margin-bottom: 28px;
}

/* ── Form elements ───────────────────────────────────────────────────────────── */
.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--nx-text);
    margin-bottom: 6px;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="number"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 11px 14px;
    border: 1.5px solid var(--nx-border);
    border-radius: var(--nx-radius);
    font-size: 15px;
    color: var(--nx-text);
    background: var(--nx-white);
    transition: border-color var(--nx-transition), box-shadow var(--nx-transition);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--nx-primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}

/* ── Buttons ─────────────────────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: var(--nx-radius);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--nx-transition), transform var(--nx-transition), box-shadow var(--nx-transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--nx-primary);
    color: #fff;
    width: 100%;
    box-shadow: 0 2px 8px rgba(37,99,235,.25);
}

.btn-primary:hover {
    background: var(--nx-primary-dk);
    box-shadow: 0 4px 14px rgba(37,99,235,.35);
    transform: translateY(-1px);
}

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

.btn-link {
    background: none;
    color: var(--nx-primary);
    padding: 0;
    font-weight: 500;
    font-size: 14px;
    text-decoration: underline;
    cursor: pointer;
}

/* ── Alerts ──────────────────────────────────────────────────────────────────── */
.alert {
    padding: 12px 16px;
    border-radius: var(--nx-radius);
    font-size: 14px;
    margin-bottom: 20px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.alert-error   { background: #fef2f2; border: 1px solid #fecaca; color: var(--nx-error); }
.alert-success { background: #f0fdf4; border: 1px solid #bbf7d0; color: var(--nx-success); }
.alert-info    { background: #eff6ff; border: 1px solid #bfdbfe; color: var(--nx-primary); }
.alert-warning { background: #fffbeb; border: 1px solid #fde68a; color: var(--nx-warning); }

/* ── Misc ─────────────────────────────────────────────────────────────────────── */
.auth-footer {
    color: var(--nx-muted);
    font-size: 12px;
    text-align: center;
    margin-top: 40px;
}

.form-footer-link {
    text-align: center;
    margin-top: 20px;
    font-size: 14px;
    color: var(--nx-muted);
}

.form-footer-link a {
    color: var(--nx-primary);
    font-weight: 600;
    text-decoration: none;
}

.form-footer-link a:hover { text-decoration: underline; }

.divider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 20px 0;
    color: var(--nx-muted);
    font-size: 13px;
}

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

/* ── Responsive ───────────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .auth-brand { display: none; }
    .auth-form-panel { padding: 30px 20px; }
    .auth-form-box { max-width: 100%; }
}