:root {
    --login-bg: #f4f7fa;
    --login-surface: #ffffff;
    --login-text: #1a2b48;
    --login-muted: #64748b;
    --login-primary: #e8635a;
    --login-navy: #1a2b48;
    --login-border: rgba(26, 43, 72, 0.12);
    --login-shadow: 0 24px 60px rgba(26, 43, 72, 0.08);
}

* {
    box-sizing: border-box;
}

body.admin-login-page {
    margin: 0;
    min-height: 100vh;
    font-family: 'Inter', 'Segoe UI', sans-serif;
    background: var(--login-bg);
    color: var(--login-text);
}

.admin-login-shell {
    min-height: 100vh;
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
}

.admin-login-shell--single {
    grid-template-columns: 1fr;
}

.admin-login-shell--single .admin-login-main {
    min-height: 100vh;
    justify-content: center;
    padding: 2rem 1.25rem;
}

/* ===== Left panel ===== */
.admin-login-brand {
    display: flex;
    flex-direction: column;
    padding: 2.25rem 3rem 2.5rem;
    background: #fff;
    border-right: 1px solid var(--login-border);
}

.admin-login-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--login-text);
    text-decoration: none;
    margin-bottom: 2rem;
    flex-shrink: 0;
}

.admin-login-logo-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: var(--login-primary);
    color: #fff;
    display: grid;
    place-items: center;
    font-size: 1.2rem;
    flex-shrink: 0;
    box-shadow: 0 8px 20px rgba(232, 99, 90, 0.25);
}

.admin-login-logo-text {
    display: flex;
    flex-direction: column;
    gap: 0.12rem;
}

.admin-login-logo-text strong {
    font-size: 1rem;
    line-height: 1.25;
}

.admin-login-logo-text span {
    font-size: 0.8rem;
    color: var(--login-muted);
}

.admin-login-intro {
    max-width: 520px;
    margin-bottom: 1.75rem;
    flex-shrink: 0;
}

.admin-login-intro h1 {
    font-size: clamp(1.85rem, 3vw, 2.4rem);
    line-height: 1.2;
    margin-bottom: 0.85rem;
    letter-spacing: -0.02em;
}

.admin-login-intro p {
    color: var(--login-muted);
    font-size: 0.98rem;
    line-height: 1.75;
}

.admin-login-preview {
    flex: 1;
    display: flex;
    align-items: flex-end;
    min-height: 260px;
    padding-top: 1rem;
}

.admin-login-preview-frame {
    width: 100%;
    max-width: 560px;
    background: linear-gradient(145deg, #eef2f7 0%, #e8edf4 100%);
    border-radius: 20px;
    padding: 1rem 1rem 0.85rem;
    box-shadow: var(--login-shadow);
    border: 1px solid rgba(26, 43, 72, 0.06);
}

.admin-login-preview-screen {
    background: #fff;
    border-radius: 14px 14px 0 0;
    overflow: hidden;
    border: 1px solid var(--login-border);
    border-bottom: none;
}

.admin-login-preview-bar {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.55rem 0.75rem;
    background: #f8fafc;
    border-bottom: 1px solid #eef2f7;
}

.admin-login-preview-bar span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #e2e8f0;
}

.admin-login-preview-bar span:first-child {
    background: #fca5a5;
}

.admin-login-preview-bar span:nth-child(2) {
    background: #fde68a;
}

.admin-login-preview-bar span:nth-child(3) {
    background: #86efac;
}

.admin-login-preview-body {
    display: grid;
    grid-template-columns: 72px 1fr;
    min-height: 220px;
}

.admin-login-preview-sidebar {
    background: #1a2b48;
    padding: 0.65rem 0.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.admin-login-preview-sidebar span {
    display: block;
    height: 8px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.14);
}

.admin-login-preview-sidebar span:first-child {
    width: 70%;
    margin-bottom: 0.35rem;
    background: rgba(255, 255, 255, 0.28);
}

.admin-login-preview-content {
    padding: 0.75rem;
    background: #f3f6fb;
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
}

.admin-login-preview-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.45rem;
}

.admin-login-preview-cards div {
    height: 42px;
    border-radius: 8px;
    background: #fff;
    border: 1px solid #e8edf4;
}

.admin-login-preview-chart {
    flex: 1;
    min-height: 90px;
    border-radius: 10px;
    background: linear-gradient(180deg, #fff 0%, #f8fafc 100%);
    border: 1px solid #e8edf4;
    position: relative;
    overflow: hidden;
}

.admin-login-preview-chart::before {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 55%;
    background: linear-gradient(180deg, rgba(232, 99, 90, 0.08) 0%, rgba(26, 43, 72, 0.06) 100%);
    clip-path: polygon(0 80%, 15% 60%, 30% 70%, 45% 40%, 60% 55%, 75% 25%, 90% 35%, 100% 15%, 100% 100%, 0 100%);
}

.admin-login-preview-base {
    height: 14px;
    margin: 0.65rem auto 0;
    width: 38%;
    background: #dbe3ee;
    border-radius: 0 0 8px 8px;
}

/* ===== Right panel ===== */
.admin-login-main {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem 1.5rem;
    background: var(--login-bg);
}

.admin-login-card {
    width: min(100%, 420px);
    background: var(--login-surface);
    border-radius: 22px;
    padding: 2rem 1.85rem 1.75rem;
    box-shadow: var(--login-shadow);
    border: 1px solid rgba(255, 255, 255, 0.9);
}

.admin-login-card-head {
    text-align: center;
    margin-bottom: 1.5rem;
}

.admin-login-card-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 0.85rem;
    border-radius: 50%;
    background: #fff5f4;
    color: var(--login-primary);
    display: grid;
    place-items: center;
    font-size: 1.45rem;
    border: 1px solid rgba(232, 99, 90, 0.18);
}

.admin-login-card-head h2 {
    font-size: 1.5rem;
    margin-bottom: 0.3rem;
    letter-spacing: -0.01em;
}

.admin-login-card-head p {
    color: var(--login-muted);
    font-size: 0.9rem;
}

.admin-login-alert {
    background: #fef2f2;
    color: #b91c1c;
    border: 1px solid #fecaca;
    border-radius: 12px;
    padding: 0.75rem 0.9rem;
    font-size: 0.88rem;
    margin-bottom: 1rem;
}

.admin-login-field {
    margin-bottom: 1rem;
}

.admin-login-field label {
    display: block;
    font-size: 0.86rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
    color: var(--login-navy);
}

.admin-login-input-wrap {
    position: relative;
}

.admin-login-input-wrap > i:first-child {
    position: absolute;
    left: 0.95rem;
    top: 50%;
    transform: translateY(-50%);
    color: #94a3b8;
    font-size: 1rem;
    pointer-events: none;
}

.admin-login-input {
    width: 100%;
    border: 1px solid var(--login-border);
    border-radius: 12px;
    background: #fff;
    color: var(--login-text);
    padding: 0.82rem 2.75rem 0.82rem 2.65rem;
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.admin-login-input:focus {
    border-color: rgba(26, 43, 72, 0.28);
    box-shadow: 0 0 0 4px rgba(26, 43, 72, 0.06);
}

.admin-login-toggle-password {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    border: none;
    background: transparent;
    color: #94a3b8;
    cursor: pointer;
    font-size: 1rem;
    padding: 0.2rem;
}

.admin-login-toggle-password:hover {
    color: var(--login-text);
}

.admin-login-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin: 0.15rem 0 1.15rem;
    font-size: 0.86rem;
}

.admin-login-remember {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    color: var(--login-muted);
    cursor: pointer;
}

.admin-login-remember input {
    accent-color: var(--login-navy);
}

.admin-login-forgot {
    color: var(--login-primary);
    text-decoration: none;
    font-weight: 600;
    white-space: nowrap;
}

.admin-login-forgot:hover {
    text-decoration: underline;
}

.admin-login-submit {
    width: 100%;
    border: none;
    border-radius: 12px;
    background: var(--login-navy);
    color: #fff;
    font-weight: 700;
    font-size: 0.94rem;
    padding: 0.92rem 1rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: background 0.2s ease, transform 0.2s ease;
}

.admin-login-submit:hover {
    background: #243a5f;
    transform: translateY(-1px);
}

.admin-login-back {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    width: 100%;
    margin-top: 0.95rem;
    color: var(--login-muted);
    text-decoration: none;
    font-size: 0.86rem;
    font-weight: 600;
}

.admin-login-back:hover {
    color: var(--login-text);
}

.admin-login-copy {
    margin-top: 1.35rem;
    color: #94a3b8;
    font-size: 0.8rem;
    text-align: center;
    max-width: 420px;
    line-height: 1.5;
}

.admin-login-mobile-brand {
    display: none;
    align-items: center;
    gap: 0.65rem;
    margin-bottom: 1.25rem;
    color: var(--login-text);
    text-decoration: none;
}

@media (max-width: 960px) {
    .admin-login-shell {
        grid-template-columns: 1fr;
    }

    .admin-login-main {
        min-height: 100vh;
        padding: 1.5rem 1.15rem;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .admin-login-card {
        padding: 1.5rem 1.2rem 1.35rem;
        border-radius: 18px;
    }

    .admin-login-options {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.65rem;
    }
}