/* =========================================================
   Tema institucional - UNIDAD EDUCATIVA PCEI TUNGURAHUA
   Paleta extraída de la identidad de marca
   ========================================================= */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700;800&family=Inter:wght@400;500;600&display=swap');

:root {
    --brand-navy:       #0a1a3f;
    --brand-navy-2:     #0f244f;
    --brand-blue:       #16357d;
    --brand-blue-light: #1e4bb8;
    --brand-gold:       #f5b81e;
    --brand-gold-dark:  #d99a00;
    --brand-gold-light: #ffd24d;
    --brand-ink:        #1a2238;
    --brand-soft:       #f4f6fb;

    --bs-primary: #16357d;
    --bs-primary-rgb: 22, 53, 125;
}

/* ---------- Base ---------- */
body {
    font-family: 'Inter', system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    color: var(--brand-ink);
    background-color: var(--brand-soft);
}

h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    color: var(--brand-navy);
    letter-spacing: -0.01em;
}

/* ---------- Fondo con degradado para páginas públicas/login ---------- */
.brand-bg {
    background: radial-gradient(1200px 600px at 80% -10%, rgba(30,75,184,0.25), transparent 60%),
                linear-gradient(135deg, var(--brand-navy) 0%, var(--brand-navy-2) 45%, var(--brand-blue) 100%);
    min-height: 100vh;
}

/* ---------- Sidebar ---------- */
.sidebar {
    min-height: 100vh;
    background: linear-gradient(180deg, var(--brand-navy) 0%, var(--brand-navy-2) 60%, var(--brand-blue) 100%) !important;
    box-shadow: 4px 0 24px rgba(10,26,63,0.18);
    padding-bottom: 1rem;
}
.sidebar h6 { color: #fff !important; font-family: 'Poppins', sans-serif; }
.sidebar small { color: rgba(255,255,255,0.65); }
.sidebar a {
    color: rgba(255,255,255,0.82) !important;
    text-decoration: none;
    padding: 11px 18px !important;
    display: flex !important;
    align-items: center;
    gap: 10px;
    font-weight: 500;
    border-left: 3px solid transparent;
    transition: all 0.18s ease;
}
.sidebar a i { font-size: 1.05rem; width: 20px; text-align: center; }
.sidebar a:hover {
    background: rgba(255,255,255,0.08) !important;
    color: #fff !important;
    border-left-color: var(--brand-gold);
}
.sidebar a.active {
    background: linear-gradient(90deg, rgba(245,184,30,0.18), transparent) !important;
    color: #fff !important;
    border-left-color: var(--brand-gold);
}
.sidebar a.active i { color: var(--brand-gold); }

/* Logo del sidebar con anillo dorado */
.sidebar img {
    border: 3px solid var(--brand-gold);
    box-shadow: 0 4px 14px rgba(0,0,0,0.3);
    background: #fff !important;
}

/* ---------- Botones ---------- */
.btn-primary {
    --bs-btn-bg: var(--brand-blue);
    --bs-btn-border-color: var(--brand-blue);
    --bs-btn-hover-bg: var(--brand-blue-light);
    --bs-btn-hover-border-color: var(--brand-blue-light);
    --bs-btn-active-bg: var(--brand-navy);
    --bs-btn-active-border-color: var(--brand-navy);
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(22,53,125,0.25);
}
.btn-outline-primary {
    --bs-btn-color: var(--brand-blue);
    --bs-btn-border-color: var(--brand-blue);
    --bs-btn-hover-bg: var(--brand-blue);
    --bs-btn-hover-border-color: var(--brand-blue);
    --bs-btn-active-bg: var(--brand-blue);
    font-weight: 600;
}
.btn-gold {
    background: linear-gradient(135deg, var(--brand-gold) 0%, var(--brand-gold-dark) 100%);
    border: none;
    color: var(--brand-navy);
    font-weight: 700;
    box-shadow: 0 4px 14px rgba(245,184,30,0.4);
}
.btn-gold:hover { color: var(--brand-navy); filter: brightness(1.05); }

/* ---------- Enlaces ---------- */
a { color: var(--brand-blue); }
a:hover { color: var(--brand-blue-light); }

/* ---------- Cards ---------- */
.card {
    border: none;
    border-radius: 14px;
    box-shadow: 0 6px 24px rgba(10,26,63,0.07);
    overflow: hidden;
}
.card-header {
    background: #fff;
    border-bottom: 2px solid rgba(22,53,125,0.08);
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    color: var(--brand-navy);
    padding: 1rem 1.25rem;
}
.card-header.bg-primary {
    background: linear-gradient(135deg, var(--brand-blue) 0%, var(--brand-blue-light) 100%) !important;
    color: #fff !important;
}
.card-header.bg-primary small { color: rgba(255,255,255,0.8); }

/* ---------- Tarjetas de estadística (dashboard) ---------- */
.stat-card { border-radius: 14px; transition: transform 0.2s, box-shadow 0.2s; border: none; }
.stat-card:hover { transform: translateY(-6px); box-shadow: 0 12px 28px rgba(10,26,63,0.18); }
.stat-card .card-title { font-weight: 600; opacity: 0.9; }
.stat-card.bg-primary { background: linear-gradient(135deg, var(--brand-blue), var(--brand-navy)) !important; }
.stat-card.bg-success { background: linear-gradient(135deg, #157347, #0f5132) !important; }
.stat-card.bg-warning { background: linear-gradient(135deg, var(--brand-gold), var(--brand-gold-dark)) !important; color: var(--brand-navy) !important; }
.stat-card.bg-info    { background: linear-gradient(135deg, var(--brand-blue-light), #2a6fd6) !important; color: #fff !important; }

/* ---------- Tablas ---------- */
.table thead th,
.table > thead { border-color: rgba(22,53,125,0.15); }
.table-primary, .table thead.table-primary tr, .table .table-primary > * {
    --bs-table-bg: var(--brand-blue);
    color: #fff !important;
}
thead.table-primary th { background: var(--brand-blue) !important; color: #fff !important; border-color: var(--brand-blue-light) !important; }
.table-success { --bs-table-bg: #e7f3ec; }

/* ---------- Formularios ---------- */
.form-control:focus, .form-select:focus {
    border-color: var(--brand-blue-light);
    box-shadow: 0 0 0 0.2rem rgba(30,75,184,0.18);
}
.form-label { font-weight: 600; color: var(--brand-navy); }

/* ---------- Badges ---------- */
.badge.bg-primary { background: var(--brand-blue) !important; }

/* ---------- Tarjetas centradas (login / pago) ---------- */
.brand-card {
    max-width: 460px;
    margin: 0 auto;
    background: #fff;
    border-radius: 18px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.25);
    overflow: hidden;
}
.brand-card .brand-card-head {
    background: linear-gradient(135deg, var(--brand-navy) 0%, var(--brand-blue) 100%);
    color: #fff;
    text-align: center;
    padding: 2rem 1.5rem 1.5rem;
}
.brand-card .brand-card-head h1 { color: #fff; font-size: 1.35rem; margin: 0.5rem 0 0.2rem; }
.brand-card .brand-card-head p { color: rgba(255,255,255,0.8); margin: 0; font-size: 0.9rem; }
.brand-card .brand-logo {
    width: 88px; height: 88px; border-radius: 50%;
    border: 3px solid var(--brand-gold);
    background: #fff; object-fit: cover;
    box-shadow: 0 6px 18px rgba(0,0,0,0.3);
}
.brand-accent { height: 4px; background: linear-gradient(90deg, var(--brand-gold), var(--brand-gold-light), var(--brand-gold)); }

/* ---------- Eslogan institucional ---------- */
.brand-eslogan {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    font-size: 0.82rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--brand-gold) !important;
    margin: 0.15rem 0 0.4rem;
}

/* ---------- Encabezado superior del panel ---------- */
.page-title {
    border-left: 5px solid var(--brand-gold);
    padding-left: 12px;
    margin-top: 1.5rem;
}

/* ---------- Scrollbar sutil ---------- */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: rgba(22,53,125,0.3); border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background: rgba(22,53,125,0.5); }