/* ============================================================
   National Ambulance Stores — Login Page
   ============================================================ */

:root {
    --nas-blue:        #1C352D;
    --nas-blue-dark:   #111f1a;
    --nas-blue-mid:    #2a5044;
    --nas-blue-light:  #e8efec;
    --nas-red:         #d42b2b;
    --nas-red-light:   #fdf0f0;
    --nas-gold:        #f5a623;
    --nas-white:       #ffffff;
    --nas-bg:          #f0f4f2;
    --nas-text:        #1C352D;
    --nas-muted:       #4a6058;
    --nas-border:      #c4d0cb;
    --nas-shadow-card: 0 8px 40px rgba(28, 53, 45, 0.13);
    --nas-shadow-btn:  0 4px 18px rgba(28, 53, 45, 0.35);
    --nas-radius:      14px;
    --nas-radius-sm:   8px;
    --nas-transition:  0.22s ease;
    --font:            'Inter', system-ui, sans-serif;
}

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

html, body {
    height: 100%;
    font-family: var(--font);
    background: var(--nas-bg);
    color: var(--nas-text);
}

/* ── Layout ─────────────────────────────────────────────── */

.nas-login-page {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 100vh;
}

/* ── Brand Panel (left) ──────────────────────────────────── */

.nas-brand-panel {
    position: relative;
    background: linear-gradient(150deg, var(--nas-blue-dark) 0%, var(--nas-blue) 55%, var(--nas-blue-mid) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 48px 40px;
    overflow: hidden;
    color: var(--nas-white);
}

.nas-brand-panel__inner {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    gap: 32px;
    max-width: 400px;
}

/* Decorative background shapes */
.nas-brand-panel__bg-shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.07;
    pointer-events: none;
}
.nas-brand-panel__bg-shape--1 {
    width: 480px; height: 480px;
    background: #fff;
    top: -120px; right: -180px;
}
.nas-brand-panel__bg-shape--2 {
    width: 300px; height: 300px;
    background: var(--nas-gold);
    bottom: -80px; left: -100px;
    opacity: 0.12;
}
.nas-brand-panel__bg-shape--3 {
    width: 160px; height: 160px;
    background: #fff;
    bottom: 120px; right: 40px;
    opacity: 0.05;
}

/* Emblem */
.nas-emblem {
    display: flex;
    align-items: center;
    gap: 12px;
}
.nas-emblem__cross {
    font-size: 2.8rem;
    color: var(--nas-red);
    filter: drop-shadow(0 0 12px rgba(212, 43, 43, 0.45));
}
.nas-emblem__truck {
    font-size: 2.2rem;
    color: rgba(255,255,255,0.85);
}

/* Brand title */
.nas-brand-panel__title {
    font-size: clamp(1.7rem, 2.6vw, 2.25rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.03em;
    color: var(--nas-white);
}
.nas-brand-panel__title span {
    color: var(--nas-gold);
}

.nas-brand-panel__tagline {
    margin-top: 8px;
    font-size: 0.88rem;
    font-weight: 500;
    color: rgba(255,255,255,0.65);
    line-height: 1.55;
    letter-spacing: 0.01em;
}

/* Feature list */
.nas-brand-panel__features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 24px 0;
    border-top: 1px solid rgba(255,255,255,0.12);
    border-bottom: 1px solid rgba(255,255,255,0.12);
}
.nas-brand-panel__features li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.84rem;
    font-weight: 500;
    color: rgba(255,255,255,0.78);
}
.nas-brand-panel__features li i {
    font-size: 1rem;
    color: var(--nas-gold);
    flex-shrink: 0;
}

.nas-brand-panel__footer {
    font-size: 0.72rem;
    color: rgba(255,255,255,0.38);
    letter-spacing: 0.02em;
}

/* ── Form Panel (right) ──────────────────────────────────── */

.nas-form-panel {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 48px 32px;
    background: var(--nas-bg);
}

.nas-form-card {
    width: 100%;
    max-width: 420px;
    background: var(--nas-white);
    border-radius: var(--nas-radius);
    box-shadow: var(--nas-shadow-card);
    padding: 40px 36px 32px;
    border: 1px solid var(--nas-border);
}

/* Card header */
.nas-form-card__header {
    margin-bottom: 28px;
}

.nas-form-card__badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--nas-blue-light);
    color: var(--nas-blue);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: 999px;
    margin-bottom: 14px;
}

.nas-form-card__title {
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--nas-text);
    line-height: 1.2;
}

.nas-form-card__subtitle {
    margin-top: 6px;
    font-size: 0.85rem;
    color: var(--nas-muted);
}

/* ── Alerts ─────────────────────────────────────────────── */

.nas-alerts {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}

.nas-alert {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 10px 14px;
    border-radius: var(--nas-radius-sm);
    font-size: 0.82rem;
    font-weight: 500;
    line-height: 1.45;
}
.nas-alert i { flex-shrink: 0; margin-top: 1px; font-size: 0.9rem; }

.nas-alert--error,
.nas-alert--danger {
    background: var(--nas-red-light);
    color: #991b1b;
    border: 1px solid #fecaca;
}
.nas-alert--warning {
    background: #fffbeb;
    color: #92400e;
    border: 1px solid #fde68a;
}
.nas-alert--success {
    background: #f0fdf4;
    color: #166534;
    border: 1px solid #bbf7d0;
}
.nas-alert--info {
    background: var(--nas-blue-light);
    color: var(--nas-blue);
    border: 1px solid #bfdbfe;
}

/* ── Form fields ─────────────────────────────────────────── */

.nas-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.nas-field { display: flex; flex-direction: column; gap: 6px; }

.nas-field__label {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #374151;
}

.nas-field__input-wrap {
    position: relative;
    display: flex;
    align-items: center;
    border: 1.5px solid var(--nas-border);
    border-radius: var(--nas-radius-sm);
    background: #fafbfd;
    transition: border-color var(--nas-transition), box-shadow var(--nas-transition);
    overflow: hidden;
}
.nas-field__input-wrap:focus-within {
    border-color: var(--nas-blue);
    box-shadow: 0 0 0 3px rgba(0, 53, 128, 0.1);
    background: var(--nas-white);
}
.nas-field__input-wrap.is-invalid {
    border-color: var(--nas-red);
}
.nas-field__input-wrap.is-invalid:focus-within {
    box-shadow: 0 0 0 3px rgba(212, 43, 43, 0.1);
}

.nas-field__icon {
    padding: 0 12px;
    color: var(--nas-muted);
    font-size: 0.95rem;
    flex-shrink: 0;
    line-height: 1;
}

.nas-field__input {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    font-family: var(--font);
    font-size: 0.9rem;
    color: var(--nas-text);
    padding: 11px 10px 11px 0;
    min-width: 0;
}
.nas-field__input::placeholder { color: #aab4be; }

.nas-field__eye {
    border: none;
    background: transparent;
    color: var(--nas-muted);
    padding: 0 12px;
    cursor: pointer;
    font-size: 0.95rem;
    line-height: 1;
    display: flex;
    align-items: center;
    transition: color var(--nas-transition);
}
.nas-field__eye:hover { color: var(--nas-blue); }

.nas-field__error {
    font-size: 0.76rem;
    color: var(--nas-red);
    display: flex;
    align-items: center;
    gap: 4px;
    font-weight: 500;
}

/* ── Form row (remember + forgot) ───────────────────────── */

.nas-form__row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.nas-checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}
.nas-checkbox__input {
    width: 15px;
    height: 15px;
    border-radius: 4px;
    border: 1.5px solid var(--nas-border);
    cursor: pointer;
    accent-color: var(--nas-blue);
}
.nas-checkbox__label {
    font-size: 0.82rem;
    color: var(--nas-muted);
    user-select: none;
}

.nas-link {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--nas-blue);
    text-decoration: none;
    transition: color var(--nas-transition);
}
.nas-link:hover { color: var(--nas-blue-dark); text-decoration: underline; }

/* ── Submit button ───────────────────────────────────────── */

.nas-btn-submit {
    margin-top: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 13px 20px;
    border: none;
    border-radius: var(--nas-radius-sm);
    background: linear-gradient(135deg, var(--nas-blue-mid) 0%, var(--nas-blue-dark) 100%);
    color: var(--nas-white);
    font-family: var(--font);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    cursor: pointer;
    box-shadow: var(--nas-shadow-btn);
    transition: opacity var(--nas-transition), transform var(--nas-transition), box-shadow var(--nas-transition);
}
.nas-btn-submit:hover:not(:disabled) {
    opacity: 0.92;
    transform: translateY(-1px);
    box-shadow: 0 6px 24px rgba(0, 53, 128, 0.42);
}
.nas-btn-submit:active:not(:disabled) {
    transform: translateY(0);
    box-shadow: var(--nas-shadow-btn);
}
.nas-btn-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}
.nas-btn-submit__icon { font-size: 1.05rem; }

/* Spin animation */
@keyframes nas-spin { to { transform: rotate(360deg); } }
.nas-spin { display: inline-block; animation: nas-spin 0.7s linear infinite; }

/* ── Card footer ─────────────────────────────────────────── */

.nas-form-card__copy {
    margin-top: 24px;
    font-size: 0.7rem;
    color: #b0bac6;
    text-align: center;
    line-height: 1.5;
}

/* ── Responsive ─────────────────────────────────────────── */

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

    .nas-brand-panel {
        padding: 36px 24px;
        min-height: auto;
    }

    .nas-brand-panel__inner {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 16px;
        max-width: 100%;
        align-items: center;
    }

    .nas-brand-panel__features,
    .nas-brand-panel__footer {
        display: none;
    }

    .nas-brand-panel__text {
        flex: 1;
    }

    .nas-brand-panel__title {
        font-size: 1.35rem;
    }

    .nas-form-panel {
        padding: 32px 20px;
    }
}

@media (max-width: 480px) {
    .nas-form-card {
        padding: 28px 20px 24px;
        border-radius: var(--nas-radius-sm);
        box-shadow: none;
        border: none;
        background: transparent;
    }

    .nas-form-panel {
        padding: 20px 16px;
        background: var(--nas-white);
    }

    .nas-form__row {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
}