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

:root {
    --primary: #4F46E5;
    --primary-dark: #4338CA;
    --primary-light: #818CF8;
    --secondary: #0EA5E9;
    --success: #10B981;
    --warning: #F59E0B;
    --danger: #EF4444;
    --dark: #1E293B;
    --gray-50: #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-500: #64748B;
    --gray-700: #334155;
    --gray-900: #0F172A;
    --white: #FFFFFF;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,.1), 0 4px 6px -2px rgba(0,0,0,.05);
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    color: var(--gray-900);
    background: var(--gray-50);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 22px;
    border: 2px solid transparent;
    border-radius: var(--radius);
    font-size: .95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all .2s;
    text-decoration: none;
}

.btn-sm { padding: 6px 16px; font-size: .85rem; }
.btn-lg { padding: 14px 32px; font-size: 1.05rem; }
.btn-block { width: 100%; justify-content: center; }

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; }

.btn-outline-primary { border-color: var(--primary); color: var(--primary); background: transparent; }
.btn-outline-primary:hover { background: var(--primary); color: #fff; }

.btn-light { background: #fff; color: var(--gray-900); }
.btn-light:hover { background: var(--gray-100); color: var(--gray-900); }

.btn-outline-light { border-color: rgba(255,255,255,.5); color: #fff; background: transparent; }
.btn-outline-light:hover { background: rgba(255,255,255,.15); color: #fff; }

.btn-secondary { background: var(--gray-200); color: var(--gray-700); }
.btn-secondary:hover { background: var(--gray-300); }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #DC2626; color: #fff; }

/* ── Alerts ── */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: .9rem;
}
.alert-danger { background: #FEF2F2; color: #991B1B; border: 1px solid #FECACA; }
.alert-success { background: #F0FDF4; color: #166534; border: 1px solid #BBF7D0; }

/* ── Public Nav ── */
.public-nav {
    background: var(--dark);
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
}

.nav-container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: #fff !important;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-links { display: flex; gap: 10px; }

.public-main { flex: 1; }

/* ── Public Footer ── */
.public-footer {
    background: var(--dark);
    color: var(--gray-300);
    text-align: center;
    padding: 24px;
    font-size: .85rem;
}

/* ── Auth Pages ── */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 160px);
    padding: 40px 20px;
}

.auth-card {
    background: #fff;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    padding: 40px;
    width: 100%;
    max-width: 440px;
}

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

.auth-card-partner {
    border-top: 4px solid #0D9488;
}

.auth-card-partner .auth-header h1 {
    color: #0D9488;
}

.auth-header { text-align: center; margin-bottom: 28px; }
.auth-header h1 { font-size: 1.6rem; color: var(--primary); margin-bottom: 4px; }
.auth-header p { color: var(--gray-500); font-size: .95rem; }

.auth-form .form-group { margin-bottom: 18px; }
.auth-form label {
    display: block;
    margin-bottom: 6px;
    font-size: .875rem;
    font-weight: 600;
    color: var(--gray-700);
}

.auth-form input[type="text"],
.auth-form input[type="email"],
.auth-form input[type="password"] {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: .95rem;
    transition: border-color .2s;
}

.auth-form input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79,70,229,.15);
}

.auth-footer { text-align: center; margin-top: 20px; font-size: .9rem; color: var(--gray-500); }

.auth-footer p { margin: 0 0 10px; }

.auth-register-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
    margin-top: 4px;
}

.auth-card-partner .auth-register-link {
    border-color: rgba(255, 255, 255, 0.35);
    color: #fff;
}

.auth-card-partner .auth-register-link:hover {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
}

.auth-partner-panel {
    margin-top: 4px;
}

.auth-partner-divider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 22px 0 16px;
    color: var(--gray-400);
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.auth-partner-divider::before,
.auth-partner-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--gray-200);
}

.auth-footer-partner {
    margin-top: 0;
    padding: 16px;
    border-radius: 14px;
    background: var(--gray-50);
    border: 1px solid var(--gray-100);
}

.auth-card-partner .auth-footer-partner {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.15);
}

.auth-footer-partner > p:first-child {
    margin: 0 0 12px;
    line-height: 1.45;
}

.auth-footer-sub {
    margin: 12px 0 0 !important;
    font-size: 0.82rem !important;
}

.auth-footer-sub a {
    color: var(--primary);
    font-weight: 700;
    text-decoration: none;
}

.auth-footer-sub a:hover {
    text-decoration: underline;
}

.auth-card-partner .auth-footer-sub a {
    color: #c7d2fe;
}

/* ── Error Page ── */
.error-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 160px);
    text-align: center;
    padding: 40px 20px;
}

.error-content h1 { font-size: 6rem; color: var(--primary); font-weight: 800; }
.error-content h2 { font-size: 1.5rem; margin-bottom: 12px; color: var(--gray-700); }
.error-content p { color: var(--gray-500); margin-bottom: 24px; }

/* ── Responsive ── */
@media (max-width: 768px) {
    .nav-container { padding: 0 12px; }
    .auth-card { padding: 28px 20px; }
}