:root {
    --admin-ink: #17211e;
    --admin-navy: #111a18;
    --admin-panel: #ffffff;
    --admin-bg: #f3f5f2;
    --admin-line: #e3e8e4;
    --admin-muted: #6c7771;
    --admin-accent: #c99432;
    --admin-accent-soft: #fff4dc;
    --admin-green: #157f61;
    --admin-red: #c64b4b;
    --admin-shadow: 0 14px 40px rgba(28, 43, 36, .08);
}

body.admin-app {
    background: var(--admin-bg) !important;
    color: var(--admin-ink);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif !important;
    -webkit-font-smoothing: antialiased;
}

.admin-app :focus-visible { outline: 3px solid rgba(201,148,50,.34) !important; outline-offset: 2px; }
.admin-app a, .admin-app button, .admin-app input, .admin-app select, .admin-app textarea { transition: color .18s ease, background .18s ease, border-color .18s ease, box-shadow .18s ease, transform .18s ease; }

#sidebar {
    width: 278px !important;
    flex: 0 0 278px;
    background: linear-gradient(180deg, #111a18 0%, #17231f 100%) !important;
    border-right: 1px solid rgba(255,255,255,.05);
    box-shadow: 16px 0 48px rgba(22,33,29,.09) !important;
    z-index: 40;
}

#sidebar > div:first-child { height: 76px !important; justify-content: flex-start !important; padding-inline: 1.25rem; border-color: rgba(255,255,255,.08) !important; background: rgba(0,0,0,.12) !important; }
#sidebar > div:first-child img { max-width: 44px; height: 40px !important; }
#sidebar > div:first-child span { font-size: .82rem !important; letter-spacing: .09em !important; }
#sidebar > .p-4.border-b { border-color: rgba(255,255,255,.07) !important; }
#sidebar nav { padding: 1rem .75rem !important; }
#sidebar nav > a,
#sidebar nav > div > button {
    min-height: 44px;
    margin-bottom: .2rem;
    padding: .72rem .85rem !important;
    border: 0 !important;
    border-radius: .7rem;
    color: #aeb9b4 !important;
    font-size: .82rem;
}
#sidebar nav > a i,
#sidebar nav > div > button i:first-child { color: #73817b; }
#sidebar nav > a:hover,
#sidebar nav > div > button:hover,
.page-dashboard #sidebar a[href="dashboard.php"],
.page-orders #sidebar a[href="orders.php"],
.page-products #sidebar a[href="products.php"],
.page-categories #sidebar a[href="categories.php"],
.page-brands #sidebar a[href="brands.php"],
.page-members #sidebar a[href="members.php"],
.page-sliders #sidebar a[href="sliders.php"],
.page-prizes #sidebar a[href="prizes.php"],
.page-redemption-history #sidebar a[href="redemption_history.php"],
.page-coupons #sidebar a[href="coupons.php"],
.page-banking #sidebar a[href="banking.php"],
.page-sales-report #sidebar a[href="sales_report.php"] {
    background: rgba(255,255,255,.085) !important;
    color: #fff !important;
}
#sidebar nav > a:hover i,
.page-dashboard #sidebar a[href="dashboard.php"] i,
.page-orders #sidebar a[href="orders.php"] i,
.page-products #sidebar a[href="products.php"] i,
.page-categories #sidebar a[href="categories.php"] i { color: #e1b85f !important; }
#sidebar .bg-red-600 { border: 1px solid rgba(255,255,255,.1); background: rgba(198,75,75,.16) !important; color: #ffb9b9; }
#sidebar .bg-red-600:hover { background: rgba(198,75,75,.26) !important; }

.admin-topbar,
.admin-app header.bg-white {
    min-height: 76px;
    padding: .9rem 1.5rem !important;
    border-bottom: 1px solid var(--admin-line);
    background: rgba(255,255,255,.92) !important;
    box-shadow: none !important;
    backdrop-filter: blur(14px);
}
.admin-topbar-title small { display: block; margin-bottom: .15rem; color: var(--admin-muted); font-size: .65rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.admin-topbar-title h2 { color: var(--admin-ink); font-size: 1.15rem; font-weight: 850; letter-spacing: -.02em; }
.admin-profile { display: flex; align-items: center; gap: .75rem; }
.admin-profile-copy { text-align: right; }
.admin-profile-copy strong { display: block; font-size: .78rem; }
.admin-profile-copy span { color: var(--admin-muted); font-size: .68rem; text-transform: capitalize; }
.admin-avatar { width: 38px; height: 38px; display: grid; place-items: center; border: 1px solid #ead9b5; border-radius: 12px; background: var(--admin-accent-soft); color: #8f651b; font-size: .8rem; font-weight: 900; }

.admin-app main { background: var(--admin-bg); }
.admin-app main > div.bg-white,
.admin-app main .bg-white.rounded,
.admin-app main .bg-white.rounded-lg,
.admin-app main .bg-white.rounded-xl,
.admin-app main .bg-white.rounded-2xl,
.admin-app div.bg-white.rounded-lg.shadow-sm {
    border: 1px solid var(--admin-line) !important;
    border-radius: 1rem !important;
    box-shadow: 0 5px 20px rgba(28,43,36,.035) !important;
}

.admin-app h1, .admin-app h2, .admin-app h3 { letter-spacing: -.025em; }
.admin-app main h2.text-3xl, .admin-app main h1.text-3xl { font-size: 1.65rem !important; }

.admin-app input:not([type="checkbox"]):not([type="radio"]):not([type="color"]),
.admin-app select,
.admin-app textarea {
    min-height: 42px;
    border: 1px solid #dce2de !important;
    border-radius: .65rem !important;
    background-color: #fff;
    color: var(--admin-ink);
}
.admin-app input:focus, .admin-app select:focus, .admin-app textarea:focus { border-color: var(--admin-accent) !important; box-shadow: 0 0 0 4px rgba(201,148,50,.12) !important; outline: none !important; }

.admin-app button.bg-black, .admin-app a.bg-black { border-radius: .65rem !important; background: var(--admin-ink) !important; box-shadow: 0 8px 18px rgba(23,33,30,.13); }
.admin-app button.bg-black:hover, .admin-app a.bg-black:hover { background: #2d3b36 !important; transform: translateY(-1px); }

.admin-app table { width: 100%; border-collapse: separate; border-spacing: 0; }
.admin-app thead { background: #edf1ee !important; color: #67726c !important; }
.admin-app thead th { border-color: var(--admin-line) !important; font-size: .67rem !important; letter-spacing: .07em; }
.admin-app tbody tr:hover { background: #fafbf9 !important; }
.admin-app tbody td { border-color: #edf0ed !important; }
.table-scroll { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }

.admin-app .border-l-4.border-green-500 { border-left-color: var(--admin-green) !important; }
.admin-app .border-l-4.border-blue-500 { border-left-color: #3d7f8e !important; }
.admin-app .border-l-4.border-yellow-500 { border-left-color: var(--admin-accent) !important; }

/* Professional split-panel staff sign-in. */
.page-index.admin-app {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 2rem;
    background:
        radial-gradient(circle at 12% 16%, rgba(201,148,50,.18), transparent 28%),
        radial-gradient(circle at 88% 84%, rgba(66,123,101,.14), transparent 31%),
        #eef2ee !important;
}
.admin-login-shell {
    width: min(1120px, 100%);
    min-height: 680px;
    display: grid;
    grid-template-columns: 1.03fr .97fr;
    overflow: hidden;
    border: 1px solid rgba(28,43,36,.09);
    border-radius: 2rem;
    background: #fff !important;
    box-shadow: 0 35px 100px rgba(23,33,30,.16);
}
.admin-login-brand {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow: hidden;
    padding: 3.3rem;
    color: #fff;
    background:
        linear-gradient(135deg, rgba(15,26,22,.96), rgba(24,49,39,.9)),
        radial-gradient(circle at 72% 25%, rgba(201,148,50,.42), transparent 30%),
        #111a18;
}
.admin-login-brand::before,
.admin-login-brand::after { content: ""; position: absolute; border: 1px solid rgba(255,255,255,.08); border-radius: 50%; pointer-events: none; }
.admin-login-brand::before { width: 430px; height: 430px; right: -210px; top: -145px; }
.admin-login-brand::after { width: 300px; height: 300px; right: -145px; top: -80px; }
.admin-login-logo { position: relative; z-index: 1; display: inline-flex; align-items: center; gap: .85rem; width: fit-content; color: #fff; letter-spacing: .13em; }
.admin-login-logo span,
.admin-login-mobile-mark span { width: 46px; height: 46px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.22); border-radius: 14px; background: var(--admin-accent); color: #15201c; font-weight: 950; letter-spacing: -.06em; }
.admin-login-logo strong { font-size: .87rem; font-weight: 900; }
.admin-login-brand-copy { position: relative; z-index: 1; max-width: 455px; }
.admin-login-eyebrow,
.admin-login-kicker { display: block; margin-bottom: 1.2rem; color: #ddb363; font-size: .66rem; font-weight: 900; letter-spacing: .2em; }
.admin-login-brand-copy h1 { margin: 0 0 1.5rem; color: #fff; font-size: clamp(2.7rem, 4.5vw, 4.25rem); font-weight: 850; line-height: .99; letter-spacing: -.055em; }
.admin-login-brand-copy p { max-width: 410px; color: rgba(255,255,255,.66); font-size: .98rem; line-height: 1.75; }
.admin-login-trust { position: relative; z-index: 1; display: flex; flex-wrap: wrap; gap: 1.35rem; color: rgba(255,255,255,.65); font-size: .7rem; font-weight: 700; }
.admin-login-trust i { margin-right: .45rem; color: #e1b85f; }
.admin-login-form-panel { display: grid; place-items: center; padding: 4rem; background: #fff; }
.admin-login-form-wrap { width: min(390px, 100%); }
.admin-login-mobile-mark { display: none; align-items: center; gap: .7rem; margin-bottom: 2.4rem; color: var(--admin-ink); font-size: .75rem; font-weight: 900; letter-spacing: .13em; }
.admin-login-mobile-mark span { width: 38px; height: 38px; border-color: #d9c28e; border-radius: 11px; }
.admin-login-heading { margin-bottom: 2rem; }
.admin-login-kicker { margin-bottom: .75rem; color: #9a7024; }
.admin-login-heading h2 { margin: 0; color: var(--admin-ink); font-size: 2rem; font-weight: 850; letter-spacing: -.04em; }
.admin-login-heading p { margin-top: .65rem; color: var(--admin-muted); font-size: .88rem; }
.admin-login-alert { display: flex; align-items: flex-start; gap: .7rem; margin-bottom: 1.25rem; padding: .9rem 1rem; border: 1px solid #f2cdcd; border-radius: .8rem; background: #fff5f5; color: #a63434; font-size: .78rem; line-height: 1.5; }
.admin-login-alert i { margin-top: .18rem; }
.admin-login-form { display: grid; gap: 1.25rem; }
.admin-login-form label { display: block; margin: 0 0 .5rem .1rem; color: #4b5752; font-size: .68rem; font-weight: 850; letter-spacing: .07em; text-transform: uppercase; }
.admin-login-input { position: relative; }
.admin-login-input > i { position: absolute; z-index: 1; left: 1rem; top: 50%; transform: translateY(-50%); color: #8a958f; font-size: .8rem; }
.admin-login-input input { width: 100%; min-height: 52px !important; padding: .8rem 3rem .8rem 2.75rem !important; border-radius: .8rem !important; background: #f9faf8 !important; font-size: .86rem; }
.admin-login-input input:focus { background: #fff !important; }
.admin-password-toggle { position: absolute; right: .55rem; top: 50%; width: 38px; height: 38px; transform: translateY(-50%); border-radius: .6rem; color: #7b8781; }
.admin-password-toggle:hover { background: #edf1ee; color: var(--admin-ink); }
.admin-login-submit { width: 100%; min-height: 54px; display: flex; align-items: center; justify-content: space-between; margin-top: .35rem; padding: .85rem 1.1rem .85rem 1.25rem; border-radius: .85rem; background: var(--admin-ink); color: #fff; box-shadow: 0 12px 25px rgba(23,33,30,.18); font-size: .84rem; font-weight: 800; }
.admin-login-submit i { width: 31px; height: 31px; display: grid; place-items: center; border-radius: .55rem; background: rgba(255,255,255,.1); color: #e2b85e; font-size: .72rem; }
.admin-login-submit:hover { background: #2d3b36; transform: translateY(-1px); box-shadow: 0 16px 28px rgba(23,33,30,.22); }
.admin-login-help { display: flex; align-items: center; gap: .45rem; margin-top: 1.3rem; color: #8a948f; font-size: .68rem; }
.admin-login-help i { color: #9a7024; }
.admin-login-copyright { margin-top: 3.6rem; color: #a0aaa5; font-size: .67rem; }

.admin-sidebar-backdrop { position: fixed; inset: 0; z-index: 30; display: none; background: rgba(8,13,11,.54); backdrop-filter: blur(2px); }
.admin-sidebar-backdrop.is-visible { display: block; }

@media (max-width: 767px) {
    #sidebar { position: fixed; inset: 0 auto 0 0; transform: translateX(-100%); }
    #sidebar:not(.-translate-x-full) { transform: translateX(0); }
    .admin-app main { padding: 1rem !important; }
    .admin-app main h2.text-3xl, .admin-app main h1.text-3xl { font-size: 1.35rem !important; }
    .admin-profile-copy { display: none; }
    .page-index.admin-app { display: block; padding: 0; background: #fff !important; }
    .admin-login-shell { min-height: 100vh; display: block; border: 0; border-radius: 0; box-shadow: none; }
    .admin-login-brand { display: none; }
    .admin-login-form-panel { min-height: 100vh; padding: 2rem 1.35rem; }
    .admin-login-mobile-mark { display: flex; }
    .admin-login-heading h2 { font-size: 1.75rem; }
    .admin-login-copyright { margin-top: 2.5rem; }
}

@media (min-width: 768px) and (max-width: 980px) {
    .admin-login-shell { grid-template-columns: .9fr 1.1fr; }
    .admin-login-brand { padding: 2.4rem; }
    .admin-login-brand-copy h1 { font-size: 3rem; }
    .admin-login-form-panel { padding: 2.8rem; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}