:root {
    --brand: #0f6e56;
    --brand-dark: #0a5240;
    --brand-soft: rgba(15, 110, 86, 0.12);
    --ink: #14201c;
    --muted: #5b6b64;
    --line: #d7e0db;
    --bg: #f2f6f4;
    --panel: #ffffff;
    --shadow: 0 10px 30px rgba(20, 32, 28, 0.06);
    --radius: 16px;
    --sidebar: 260px;
    --font: "Figtree", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    font-family: var(--font);
    color: var(--ink);
    background: var(--bg);
}

a { color: inherit; text-decoration: none; }

.admin-body { min-height: 100vh; }
.admin-shell {
    display: grid;
    grid-template-columns: var(--sidebar) 1fr;
    min-height: 100vh;
}

.admin-sidebar {
    background: linear-gradient(180deg, #0f6e56 0%, #0a5240 100%);
    color: #fff;
    padding: 1.25rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.admin-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.35rem 0.5rem;
}
.admin-brand__mark {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: rgba(255,255,255,0.16);
    display: grid;
    place-items: center;
    font-weight: 800;
}
.admin-brand strong { display: block; font-size: 1.05rem; }
.admin-brand small { opacity: 0.75; }

.admin-nav { display: grid; gap: 0.35rem; }
.admin-nav__link {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.75rem 0.85rem;
    border-radius: 12px;
    color: rgba(255,255,255,0.86);
    font-weight: 600;
}
.admin-nav__link:hover,
.admin-nav__link.is-active {
    background: rgba(255,255,255,0.14);
    color: #fff;
}

.admin-sidebar__foot { margin-top: auto; display: grid; gap: 0.75rem; }
.admin-user {
    display: flex;
    gap: 0.7rem;
    align-items: center;
    padding: 0.5rem;
    border-radius: 12px;
    background: rgba(0,0,0,0.12);
}
.admin-user__avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    object-fit: cover;
}
.admin-user__avatar--fallback {
    display: grid;
    place-items: center;
    background: rgba(255,255,255,0.2);
    font-weight: 700;
}
.admin-user strong { display: block; font-size: 0.92rem; }
.admin-user small { opacity: 0.75; font-size: 0.78rem; word-break: break-all; }
.admin-logout {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.55rem 0.75rem;
    border-radius: 10px;
    color: rgba(255,255,255,0.85);
    font-weight: 600;
}
.admin-logout:hover { background: rgba(255,255,255,0.1); }

.admin-main { padding: 1.75rem 1.75rem 2.5rem; }
.admin-flash {
    margin-bottom: 1rem;
    padding: 0.85rem 1rem;
    border-radius: 12px;
    font-weight: 600;
}
.admin-flash--success { background: #e7f8ef; color: #0a5240; }
.admin-flash--error { background: #fdeceb; color: #8f1d1d; }
.admin-flash--info { background: #eaf2ff; color: #1d3f8f; }

.page-header { margin-bottom: 1.5rem; }
.page-header h1 { margin: 0 0 0.35rem; font-size: 1.7rem; }
.page-header p { margin: 0; color: var(--muted); }

.grid-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
    margin-bottom: 1.25rem;
}
.stat-card,
.panel {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.stat-card { padding: 1.1rem 1.2rem; }
.stat-card .label { color: var(--muted); font-weight: 600; font-size: 0.9rem; }
.stat-card .value { font-size: 1.8rem; font-weight: 800; margin-top: 0.25rem; }
.panel { padding: 1.25rem; }
.panel h2 { margin: 0 0 0.75rem; font-size: 1.1rem; }
.muted { color: var(--muted); }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border: 0;
    border-radius: 999px;
    padding: 0.8rem 1.2rem;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}
.btn-primary {
    background: linear-gradient(135deg, var(--brand), var(--brand-dark));
    color: #fff;
}
.btn-primary:hover { filter: brightness(1.05); }
.btn-google {
    background: #fff;
    color: var(--ink);
    border: 1px solid var(--line);
    width: 100%;
}
.btn-google:hover { background: #f8faf9; }

.login-page {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 1.5rem;
    background:
        radial-gradient(circle at top left, rgba(15,110,86,0.18), transparent 40%),
        radial-gradient(circle at bottom right, rgba(15,110,86,0.12), transparent 35%),
        linear-gradient(160deg, #f7faf8, #e8f1ec);
}
.login-card {
    width: min(420px, 100%);
    background: rgba(255,255,255,0.92);
    border: 1px solid rgba(215,224,219,0.9);
    border-radius: 24px;
    box-shadow: 0 20px 50px rgba(20,32,28,0.1);
    padding: 2rem 1.75rem;
    text-align: center;
}
.login-card__mark {
    width: 64px;
    height: 64px;
    margin: 0 auto 1rem;
    border-radius: 18px;
    display: grid;
    place-items: center;
    background: var(--brand-soft);
    color: var(--brand-dark);
    font-size: 1.6rem;
    font-weight: 800;
}
.login-card h1 { margin: 0 0 0.4rem; font-size: 1.55rem; }
.login-card p { margin: 0 0 1.4rem; color: var(--muted); }
.login-note {
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--muted);
}

@media (max-width: 960px) {
    .admin-shell { grid-template-columns: 1fr; }
    .admin-sidebar { position: sticky; top: 0; z-index: 10; }
    .grid-stats { grid-template-columns: 1fr; }
}