/* =========================================================
   SPELLING BEE NINJA — MODERN CARD DESIGN SYSTEM
   Add at the end of style2.css
   ========================================================= */

:root {
    --sbn-navy: #0b2545;
    --sbn-text: #24446c;
    --sbn-muted: #64748b;

    --sbn-page-bg: #f8fafc;
    --sbn-card-bg: #ffffff;

    --sbn-border: #e5eaf1;
    --sbn-shadow: 0 4px 16px rgba(11, 37, 69, 0.07);
    --sbn-shadow-hover: 0 10px 28px rgba(11, 37, 69, 0.12);

    --sbn-radius-sm: 12px;
    --sbn-radius: 20px;
    --sbn-radius-lg: 24px;

    --sbn-space: 24px;
}


/* =========================================================
   1. PAGE FOUNDATION
   ========================================================= */

body {
    background-color: var(--sbn-page-bg);
    color: var(--sbn-text);
    font-family:
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Arial,
        sans-serif;
    line-height: 1.6;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--sbn-navy);
    font-weight: 700;
    line-height: 1.25;
}

p {
    color: var(--sbn-text);
}

a {
    transition: color 0.2s ease;
}

a:not(.btn):hover {
    color: #3b82f6;
}


/* =========================================================
   2. BOOTSTRAP CONTAINERS AND SPACING
   ========================================================= */

/* Preserve Bootstrap's responsive layout and widths. */

.container,
.container-fluid {
    box-sizing: border-box;
}

/* Give content sections more breathing room. */

.container > .row,
.container-fluid > .row {
    margin-bottom: 20px;
}

/* Keep the spacing between Bootstrap columns consistent. */

.row {
    row-gap: 20px;
}


/* =========================================================
   3. SHARED CARD APPEARANCE
   ========================================================= */

/*
   Apply .sbn-card to elements that should look like cards.
   Also style common Bootstrap components.
*/

.sbn-card,
.card,
.list-group,
.modal-content,
.dropdown-menu,
.popover,
.accordion-item {
    background-color: var(--sbn-card-bg);
    border: 1px solid var(--sbn-border);
    border-radius: var(--sbn-radius);
    box-shadow: var(--sbn-shadow);
}

/* Avoid Bootstrap's sharp card edges. */

.card {
    overflow: hidden;
}

.card-header {
    background-color: transparent;
    border-bottom: 1px solid var(--sbn-border);
    padding: 20px 24px;
    font-weight: 700;
    color: var(--sbn-navy);
}

.card-body {
    padding: 24px;
}

.card-footer {
    background-color: transparent;
    border-top: 1px solid var(--sbn-border);
    padding: 16px 24px;
}

/* Make card headings consistent. */

.card-title {
    color: var(--sbn-navy);
    font-weight: 700;
    margin-bottom: 12px;
}

.card-text {
    color: var(--sbn-text);
}


/* =========================================================
   4. OPTIONAL HOVER EFFECT
   ========================================================= */

/*
   Use .sbn-card-hover only on cards that are clickable.
   Avoid applying hover transforms to every Bootstrap card.
*/

.sbn-card-hover,
.card.sbn-card-hover {
    transition:
        transform 0.2s ease,
        box-shadow 0.2s ease,
        border-color 0.2s ease;
}

.sbn-card-hover:hover,
.card.sbn-card-hover:hover {
    transform: translateY(-3px);
    box-shadow: var(--sbn-shadow-hover);
    border-color: #d5dfec;
}


/* =========================================================
   5. NAVIGATION
   ========================================================= */

/* Give the main navigation a clean, light appearance. */

.navbar {
    background-color: #ffffff;
    border-bottom: 1px solid var(--sbn-border);
    box-shadow: 0 2px 10px rgba(11, 37, 69, 0.04);
}

.navbar-brand {
    color: var(--sbn-navy);
    font-weight: 800;
    letter-spacing: -0.3px;
}

.navbar-brand:hover {
    color: var(--sbn-navy);
}

.navbar .nav-link {
    color: var(--sbn-text);
    font-weight: 600;
    border-radius: 10px;
    padding: 10px 14px;
    transition:
        color 0.2s ease,
        background-color 0.2s ease;
}

.navbar .nav-link:hover,
.navbar .nav-link:focus {
    color: var(--sbn-navy);
    background-color: #f1f5f9;
}

.navbar .nav-link.active,
.navbar .active > .nav-link {
    color: var(--sbn-navy);
    background-color: #eaf2ff;
}


/* =========================================================
   6. BUTTONS
   ========================================================= */

.btn {
    border-radius: 12px;
    padding: 10px 18px;
    font-weight: 600;
    transition:
        background-color 0.2s ease,
        border-color 0.2s ease,
        box-shadow 0.2s ease,
        transform 0.2s ease;
}

.btn-primary {
    background-color: #2563eb;
    border-color: #2563eb;
    color: #ffffff;
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: #1d4ed8;
    border-color: #1d4ed8;
    color: #ffffff;
}

.btn-secondary {
    background-color: #f1f5f9;
    border-color: #e2e8f0;
    color: var(--sbn-navy);
}

.btn-secondary:hover,
.btn-secondary:focus {
    background-color: #e2e8f0;
    border-color: #cbd5e1;
    color: var(--sbn-navy);
}

.btn-outline-primary {
    color: #2563eb;
    border-color: #bfdbfe;
}

.btn-outline-primary:hover,
.btn-outline-primary:focus {
    background-color: #eff6ff;
    border-color: #93c5fd;
    color: #1d4ed8;
}

.btn:focus-visible {
    outline: 3px solid rgba(59, 130, 246, 0.35);
    outline-offset: 2px;
}


/* =========================================================
   7. SEARCH FIELDS AND FORMS
   ========================================================= */

.form-control,
.form-select,
input[type="text"],
input[type="search"],
input[type="email"],
input[type="password"],
textarea,
select {
    box-sizing: border-box;
    border: 1px solid #dbe3ee;
    border-radius: 12px;
    background-color: #ffffff;
    color: var(--sbn-navy);
    padding: 11px 14px;
    min-height: 44px;
    box-shadow: none;
    transition:
        border-color 0.2s ease,
        box-shadow 0.2s ease;
}

.form-control:focus,
.form-select:focus,
input:focus,
textarea:focus,
select:focus {
    border-color: #93c5fd;
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.12);
    outline: none;
}

.form-label,
label {
    color: var(--sbn-navy);
    font-weight: 600;
    margin-bottom: 8px;
}


/* =========================================================
   8. TABLES AND LISTS
   ========================================================= */

.table {
    color: var(--sbn-text);
    margin-bottom: 0;
}

.table > :not(caption) > * > * {
    padding: 14px 16px;
    border-bottom-color: var(--sbn-border);
}

.table thead th {
    background-color: #f8fafc;
    color: var(--sbn-navy);
    font-weight: 700;
    border-bottom-width: 1px;
}

.table tbody tr:hover > * {
    background-color: #f8fafc;
}

/* Softer list group rows. */

.list-group {
    overflow: hidden;
}

.list-group-item {
    padding: 16px 20px;
    border-color: var(--sbn-border);
    color: var(--sbn-text);
}

.list-group-item:first-child,
.list-group-item:last-child {
    border-radius: 0;
}


/* =========================================================
   9. BADGES AND LABELS
   ========================================================= */

.badge {
    border-radius: 8px;
    padding: 6px 10px;
    font-weight: 600;
}

.badge.bg-primary {
    background-color: #eaf2ff !important;
    color: #2563eb !important;
}

.badge.bg-success {
    background-color: #eaf9f2 !important;
    color: #047857 !important;
}

.badge.bg-warning {
    background-color: #fff7df !important;
    color: #92400e !important;
}

.badge.bg-danger {
    background-color: #fcecf5 !important;
    color: #be185d !important;
}


/* =========================================================
   10. PAGINATION
   ========================================================= */

.pagination {
    gap: 6px;
}

.page-link {
    border: 1px solid var(--sbn-border);
    border-radius: 10px !important;
    color: var(--sbn-text);
    padding: 8px 13px;
}

.page-link:hover {
    background-color: #eff6ff;
    border-color: #bfdbfe;
    color: #2563eb;
}

.page-item.active .page-link {
    background-color: #2563eb;
    border-color: #2563eb;
    color: #ffffff;
}


/* =========================================================
   11. ALERTS
   ========================================================= */

.alert {
    border: 1px solid transparent;
    border-radius: var(--sbn-radius-sm);
    padding: 16px 20px;
}

.alert-primary {
    background-color: #eaf2ff;
    border-color: #dbeafe;
    color: #1e40af;
}

.alert-success {
    background-color: #eaf9f2;
    border-color: #d1fae5;
    color: #065f46;
}

.alert-warning {
    background-color: #fff7df;
    border-color: #fef3c7;
    color: #92400e;
}

.alert-danger {
    background-color: #fff0f3;
    border-color: #ffe4e6;
    color: #9f1239;
}


/* =========================================================
   12. RESPONSIVE ADJUSTMENTS
   ========================================================= */

@media (max-width: 767.98px) {
    .container,
    .container-fluid {
        padding-left: 16px;
        padding-right: 16px;
    }

    .card-body {
        padding: 18px;
    }

    .card-header {
        padding: 16px 18px;
    }

    .card-footer {
        padding: 14px 18px;
    }

    .row {
        row-gap: 16px;
    }

    .btn {
        padding: 9px 14px;
    }

    h1 {
        font-size: 1.8rem;
    }

    h2 {
        font-size: 1.5rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
}


/* =========================================================
   HOMEPAGE FEATURE SECTIONS
   ========================================================= */

.sbn-feature {
    padding: 24px;
    border: 1px solid rgba(11, 37, 69, 0.04);
    border-radius: 20px;
    margin-bottom: 24px;
}

.sbn-feature h2,
.sbn-feature h3 {
    color: var(--sbn-navy);
    margin-top: 0;
}

.sbn-feature p {
    color: var(--sbn-text);
}

/* Subject-inspired pastel colors */

.sbn-feature-practice {
    background-color: #eaf2ff;
}

.sbn-feature-tournaments {
    background-color: #fcecf5;
}

.sbn-feature-lists {
    background-color: #f0edff;
}

.sbn-feature-search {
    background-color: #e8f9fc;
}

.sbn-feature-rankings {
    background-color: #fff7df;
}

.sbn-feature-help {
    background-color: #eaf9f2;
}