/**
 * Shared portal login & credentials — Staff, Parent, Student
 */

:root {
    --portal-bg: #F7F8FA;
    --portal-surface: #FFFFFF;
    --portal-border: #E4E7EC;
    --portal-text-1: #0F172A;
    --portal-text-2: #475569;
    --portal-text-3: #94A3B8;
    --portal-primary: #059669;
    --portal-primary-dk: #047857;
    --portal-accent: #10b981;
    --portal-navy: #1e3a5f;
    --portal-navy-dk: #0f172a;
    --portal-radius: 10px;
    --portal-radius-lg: 14px;
    --portal-radius-xl: 18px;
    --portal-transition: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
}

.portal-page {
    min-height: 100vh;
    font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
    background: linear-gradient(180deg, #ecfdf5 0%, var(--portal-bg) 42%, #f0fdf4 100%);
    color: var(--portal-text-1);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px 20px 40px;
}

.portal-shell {
    width: 100%;
    max-width: 480px;
}

.portal-brand {
    text-align: center;
    margin-bottom: 24px;
}

.portal-brand-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 12px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--portal-primary), var(--portal-accent));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    box-shadow: 0 8px 24px rgba(5, 150, 105, 0.28);
}

.portal-brand h1 {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin: 0 0 4px;
}

.portal-brand p {
    font-size: 13px;
    color: var(--portal-text-3);
    margin: 0;
}

.portal-card {
    background: var(--portal-surface);
    border: 1px solid var(--portal-border);
    border-radius: var(--portal-radius-xl);
    padding: 32px 28px;
    box-shadow: 0 4px 28px rgba(15, 23, 42, 0.07);
}

.portal-card h2 {
    font-size: 1.35rem;
    font-weight: 700;
    margin: 0 0 6px;
    letter-spacing: -0.02em;
}

.portal-card .portal-sub {
    font-size: 13px;
    color: var(--portal-text-3);
    margin: 0 0 24px;
    line-height: 1.5;
}

.portal-field {
    margin-bottom: 18px;
}

.portal-field label {
    display: block;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--portal-text-2);
    margin-bottom: 6px;
}

.portal-field .form-control,
.portal-input-wrap input {
    width: 100%;
    height: 46px;
    padding: 0 14px;
    border: 1px solid var(--portal-border);
    border-radius: var(--portal-radius);
    font-size: 14px;
    font-family: inherit;
    background: var(--portal-surface);
    color: var(--portal-text-1);
    transition: border-color var(--portal-transition), box-shadow var(--portal-transition);
}

.portal-field .form-control:focus,
.portal-input-wrap input:focus {
    outline: none;
    border-color: var(--portal-primary);
    box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.12);
}

.portal-hint {
    font-size: 12px;
    color: var(--portal-text-3);
    margin-top: 6px;
    line-height: 1.45;
}

.portal-input-wrap {
    position: relative;
}

.portal-input-wrap input {
    padding-left: 44px;
    padding-right: 44px;
}

.portal-input-wrap .field-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--portal-text-3);
    font-size: 16px;
    pointer-events: none;
}

.portal-pwd-toggle {
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    width: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--portal-text-3);
    font-size: 16px;
}

.portal-pwd-toggle:hover {
    color: var(--portal-text-2);
}

.portal-row-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    margin: 12px 0 20px;
    font-size: 13px;
    color: var(--portal-text-2);
}

.portal-row-between a {
    color: var(--portal-primary);
    font-weight: 600;
    text-decoration: none;
}

.portal-btn {
    width: 100%;
    height: 48px;
    border: none;
    border-radius: var(--portal-radius);
    font-size: 15px;
    font-weight: 600;
    font-family: inherit;
    color: #fff;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--portal-primary), var(--portal-accent));
    transition: transform var(--portal-transition), box-shadow var(--portal-transition);
}

.portal-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 12px 32px rgba(5, 150, 105, 0.32);
}

.portal-alert {
    padding: 12px 14px;
    border-radius: var(--portal-radius);
    font-size: 13px;
    margin-bottom: 18px;
    line-height: 1.45;
}

.portal-alert.is-error {
    background: #fef2f2;
    border: 1px solid rgba(220, 38, 38, 0.2);
    color: #b91c1c;
}

.portal-tip {
    margin-top: 20px;
    padding: 14px 16px;
    border-radius: var(--portal-radius);
    background: #ecfdf5;
    border: 1px solid #a7f3d0;
    font-size: 12.5px;
    color: #065f46;
    line-height: 1.55;
}

.portal-tip code {
    font-family: ui-monospace, monospace;
    font-size: 11.5px;
    background: rgba(5, 150, 105, 0.12);
    padding: 2px 6px;
    border-radius: 4px;
}

/* Portal switcher — all three logins */
.portal-switcher {
    margin-top: 22px;
    padding-top: 20px;
    border-top: 1px solid var(--portal-border);
}

.portal-switcher-label {
    text-align: center;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--portal-text-3);
    margin: 0 0 12px;
}

.portal-switcher-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.portal-switcher-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 12px 8px;
    border-radius: var(--portal-radius);
    border: 1px solid var(--portal-border);
    background: var(--portal-bg);
    color: var(--portal-text-2);
    font-size: 12px;
    font-weight: 600;
    text-decoration: none;
    transition: background var(--portal-transition), border-color var(--portal-transition), color var(--portal-transition), transform var(--portal-transition);
}

.portal-switcher-item i {
    font-size: 18px;
    color: var(--portal-text-3);
    transition: color var(--portal-transition);
}

.portal-switcher-item:hover {
    background: #ecfdf5;
    border-color: #a7f3d0;
    color: var(--portal-primary-dk);
    transform: translateY(-1px);
}

.portal-switcher-item:hover i {
    color: var(--portal-primary);
}

.portal-switcher-item.is-active {
    background: linear-gradient(135deg, rgba(5, 150, 105, 0.1), rgba(16, 185, 129, 0.08));
    border-color: var(--portal-primary);
    color: var(--portal-primary-dk);
    pointer-events: none;
}

.portal-switcher-item.is-active i {
    color: var(--portal-primary);
}

/* Staff login variant (inside auth-card) */
.auth-card .portal-switcher {
    margin-top: 20px;
    padding-top: 18px;
}

.auth-card .portal-switcher-item {
    background: #f8fafc;
}

@media (max-width: 400px) {
    .portal-switcher-grid {
        grid-template-columns: 1fr;
    }

    .portal-switcher-item {
        flex-direction: row;
        justify-content: center;
        padding: 10px 14px;
    }
}

/* ── Split login (parent / student) ──────────────── */
.portal-login-page {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
}

.portal-login-brand {
    position: relative;
    overflow: hidden;
    padding: clamp(32px, 5vw, 56px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: #fff;
}

.portal-login-brand--parent {
    background: linear-gradient(155deg, #022c22 0%, #065f46 48%, #047857 100%);
}

.portal-login-brand--student {
    background: linear-gradient(155deg, #1e1b4b 0%, #4338ca 48%, #4f46e5 100%);
}

.portal-login-brand::before {
    content: '';
    position: absolute;
    width: 420px;
    height: 420px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255,255,255,.14) 0%, transparent 68%);
    top: -120px;
    right: -80px;
}

.portal-login-brand-inner { position: relative; z-index: 1; max-width: 440px; }

.portal-login-brand h1 {
    font-size: clamp(1.6rem, 3vw, 2rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    margin: 0 0 12px;
}

.portal-login-brand > .portal-login-brand-inner > p {
    font-size: 15px;
    line-height: 1.6;
    opacity: 0.88;
    margin: 0 0 28px;
}

.portal-login-features {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 14px;
}

.portal-login-features li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 14px;
    line-height: 1.45;
    opacity: 0.92;
}

.portal-login-features i {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: rgba(255,255,255,.12);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 16px;
}

.portal-login-form-side {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px 24px;
    background: var(--portal-bg);
}

.portal-login-form-side .portal-shell {
    max-width: 420px;
}

.portal-login-form-side .portal-brand {
    margin-bottom: 20px;
}

@media (max-width: 900px) {
    .portal-login-page {
        grid-template-columns: 1fr;
    }

    .portal-login-brand {
        min-height: auto;
        padding: 28px 24px 32px;
    }

    .portal-login-features { display: none; }
}