/* GPUHour theme — light professional look with a dark brand navbar.
   Palette: #f6f8fb page / white surfaces, navy #0f172a text, deep-cyan
   #0891b2 accent (brand cyan family), green #047857 prices. */

:root {
    --gh-bg: #f6f8fb;
    --gh-surface: #ffffff;
    --gh-surface-2: #f1f5f9;
    --gh-border: #e2e8f0;
    --gh-text: #0f172a;
    --gh-muted: #64748b;
    --gh-accent: #0891b2;
    --gh-accent-strong: #0e7490;
    --gh-accent-bright: #22d3ee;
    --gh-price: #047857;
    --gh-nav: #0b1220;

    --bs-body-bg: var(--gh-bg);
    --bs-body-color: var(--gh-text);
    --bs-secondary-color: var(--gh-muted);
    --bs-border-color: var(--gh-border);
    --bs-link-color: var(--gh-accent-strong);
    --bs-link-hover-color: var(--gh-accent);
    --bs-primary: var(--gh-accent);
    --bs-primary-rgb: 8, 145, 178;
}

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background: var(--gh-bg);
    color: var(--gh-text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
}

main { flex: 1; }

/* ---------- navbar: stays dark for brand contrast ---------- */
.navbar {
    background: var(--gh-nav) !important;
    border-bottom: 1px solid #16213a;
}
.navbar .navbar-brand {
    color: #fff !important;
    letter-spacing: -0.02em;
    font-weight: 700;
}
.navbar-brand::before {
    content: "";
    display: inline-block;
    width: 0.62em; height: 0.62em;
    margin-right: 0.45em;
    background: var(--gh-accent-bright);
    border-radius: 2px;
    box-shadow: 0 0 10px rgba(34, 211, 238, 0.7);
    transform: rotate(45deg);
}
.navbar .nav-link {
    color: #94a6c4 !important;
    font-weight: 500;
}
.navbar .nav-link:hover, .navbar .nav-link.active { color: #fff !important; }
.navbar-toggler { border-color: #2a3958; }
.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(219,228,243,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}
.navbar .dropdown-menu {
    background: #131d33;
    border: 1px solid #24304d;
}
.navbar .dropdown-item { color: #dbe4f3; }
.navbar .dropdown-item:hover { background: #1c2947; color: #fff; }
.navbar .dropdown-item.active { background: var(--gh-accent-strong); }
/* nav CTA: bright cyan on dark */
.navbar .btn-primary {
    --bs-btn-bg: var(--gh-accent-bright);
    --bs-btn-color: #06232b;
    --bs-btn-border-color: var(--gh-accent-bright);
    --bs-btn-hover-bg: #67e8f9;
    --bs-btn-hover-color: #06232b;
    --bs-btn-hover-border-color: #67e8f9;
    font-weight: 600;
}

/* ---------- hero ---------- */
h1.display-5 {
    color: var(--gh-text);
    letter-spacing: -0.03em;
    font-weight: 800;
}
h1.display-5 + p.lead { color: var(--gh-muted); }

/* stat chips */
.badge.bg-primary-subtle {
    background: rgba(8, 145, 178, 0.07) !important;
    color: var(--gh-accent-strong) !important;
    border: 1px solid rgba(8, 145, 178, 0.25);
    font-weight: 500;
    font-variant-numeric: tabular-nums;
    padding: 0.45em 0.8em;
    border-radius: 999px;
}

/* ---------- filters ---------- */
.form-select, .form-control {
    background-color: var(--gh-surface);
    border-color: #cbd5e1;
    color: var(--gh-text);
}
.form-select:focus, .form-control:focus {
    border-color: var(--gh-accent);
    box-shadow: 0 0 0 0.2rem rgba(8, 145, 178, 0.12);
}
.form-label { color: var(--gh-muted); font-weight: 500; }

/* ---------- data tables ---------- */
.table {
    --bs-table-bg: var(--gh-surface);
    --bs-table-color: var(--gh-text);
    --bs-table-border-color: var(--gh-border);
    --bs-table-hover-bg: #f8fafc;
    --bs-table-hover-color: var(--gh-text);
    font-size: 0.925rem;
    margin-bottom: 0;
}
.table > :not(caption) > * > * { padding: 0.62rem 0.9rem; }
.table thead th, .table .table-light th {
    background: var(--gh-surface-2) !important;
    color: var(--gh-muted) !important;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    border-bottom: 1px solid var(--gh-border) !important;
}
.table-responsive {
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--gh-border);
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 24px rgba(15, 23, 42, 0.06);
    margin-bottom: 1rem;
    background: var(--gh-surface);
}
.table a { text-decoration: none; }
.table a.fw-semibold { color: var(--gh-text); }
.table a.fw-semibold:hover { color: var(--gh-accent-strong); }

/* price cells: green, tabular, mono */
td.fw-bold, .table .fw-bold {
    color: var(--gh-price);
    font-variant-numeric: tabular-nums;
    font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
    font-size: 0.9rem;
}

/* ---------- buttons ---------- */
.btn-primary {
    --bs-btn-bg: var(--gh-accent);
    --bs-btn-color: #fff;
    --bs-btn-border-color: var(--gh-accent);
    --bs-btn-hover-bg: var(--gh-accent-strong);
    --bs-btn-hover-color: #fff;
    --bs-btn-hover-border-color: var(--gh-accent-strong);
    --bs-btn-active-bg: var(--gh-accent-strong);
    --bs-btn-active-color: #fff;
    --bs-btn-active-border-color: var(--gh-accent-strong);
    font-weight: 600;
}
.btn-outline-secondary {
    --bs-btn-color: var(--gh-muted);
    --bs-btn-border-color: #cbd5e1;
    --bs-btn-hover-bg: var(--gh-surface-2);
    --bs-btn-hover-color: var(--gh-text);
    --bs-btn-hover-border-color: var(--gh-muted);
}

/* ---------- cards / misc surfaces ---------- */
.card {
    background: var(--gh-surface);
    border: 1px solid var(--gh-border);
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}
.alert-light {
    background: var(--gh-surface);
    border-color: var(--gh-border) !important;
    color: var(--gh-muted);
}
.breadcrumb .breadcrumb-item a { color: var(--gh-muted); text-decoration: none; }
.breadcrumb .breadcrumb-item a:hover { color: var(--gh-accent-strong); }
.breadcrumb .breadcrumb-item.active { color: var(--gh-text); }

.badge.bg-success {
    background: rgba(4, 120, 87, 0.09) !important;
    color: var(--gh-price) !important;
    border: 1px solid rgba(4, 120, 87, 0.3);
}
.badge.bg-success-subtle {
    background: rgba(4, 120, 87, 0.08) !important;
    color: var(--gh-price) !important;
    border: 1px solid rgba(4, 120, 87, 0.25);
}
.badge.bg-secondary-subtle {
    background: var(--gh-surface-2) !important;
    color: var(--gh-muted) !important;
    border: 1px solid var(--gh-border);
}
.badge.bg-info-subtle {
    background: rgba(8, 145, 178, 0.07) !important;
    color: var(--gh-accent-strong) !important;
    border: 1px solid rgba(8, 145, 178, 0.25);
}

h2.h5 { color: var(--gh-text); font-weight: 700; letter-spacing: -0.01em; }

/* feature trio under the table */
.row.g-4 h2.h5::before {
    content: "▸ ";
    color: var(--gh-accent);
}

/* ---------- footer ---------- */
footer.bg-light {
    background: var(--gh-surface) !important;
    border-top: 1px solid var(--gh-border);
    color: var(--gh-muted);
}
footer a { color: var(--gh-muted) !important; }
footer a:hover { color: var(--gh-accent-strong) !important; }

/* ---------- forms/auth pages ---------- */
.form-check-input:checked { background-color: var(--gh-accent); border-color: var(--gh-accent); }

::selection { background: rgba(34, 211, 238, 0.25); }