/*
Theme Name: BrainBuzz Theme
Theme URI: https://brainking.online
Author: BrainBuzz
Author URI: https://brainking.online
Description: A custom dark gaming theme for BrainBuzz — the ultimate brain training and competition platform.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 7.1
Requires PHP: 8.0
License: GPL v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: brainbuzz
Tags: gaming, dark, responsive, custom-menu, custom-logo, featured-images
*/

/* =============================================
   BRAINBUZZ THEME — CSS FOUNDATION
   ============================================= */

/* --- CSS Custom Properties --- */
:root {
    --bb-navy:       #0d1117;
    --bb-dark:       #161b22;
    --bb-card:       #1c2333;
    --bb-border:     #30363d;
    --bb-blue:       #4493f8;
    --bb-blue-light: #79c0ff;
    --bb-purple:     #a855f7;
    --bb-purple-d:   #7c3aed;
    --bb-cyan:       #39d0d8;
    --bb-gold:       #f0d060;
    --bb-green:      #3fb950;
    --bb-red:        #f85149;
    --bb-white:      #ffffff;
    --bb-text:       #cdd9e5;
    --bb-muted:      #8b949e;
    --bb-gradient:   linear-gradient(135deg, var(--bb-blue) 0%, var(--bb-purple) 100%);
    --bb-gradient-dark: linear-gradient(135deg, #0d1117 0%, #1a1030 100%);
    --bb-radius:     12px;
    --bb-radius-lg:  20px;
    --bb-shadow:     0 4px 20px rgba(0,0,0,.4);
    --bb-shadow-glow:0 0 20px rgba(68,147,248,.25);
    --bb-font:       'Segoe UI', system-ui, -apple-system, sans-serif;
    --bb-font-heading:'Segoe UI', system-ui, sans-serif;
    --bb-transition: all .2s ease;
    --bb-header-h:   72px;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--bb-font);
    background: var(--bb-navy);
    color: var(--bb-text);
    line-height: 1.6;
    font-size: 16px;
    min-height: 100vh;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--bb-blue); text-decoration: none; transition: var(--bb-transition); }
a:hover { color: var(--bb-blue-light); }
h1,h2,h3,h4,h5,h6 {
    font-family: var(--bb-font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--bb-white);
}
button { cursor: pointer; font-family: var(--bb-font); }
input, textarea, select {
    font-family: var(--bb-font);
    background: var(--bb-dark);
    color: var(--bb-text);
    border: 1px solid var(--bb-border);
    border-radius: var(--bb-radius);
    padding: .6rem 1rem;
    width: 100%;
    transition: var(--bb-transition);
}
input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--bb-blue);
    box-shadow: 0 0 0 3px rgba(68,147,248,.15);
}

/* --- Layout Containers --- */
.bb-container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }
.bb-container--wide { max-width: 1440px; margin: 0 auto; padding: 0 1.5rem; }
.bb-section { padding: 5rem 0; }
.bb-section--sm { padding: 3rem 0; }

/* =============================================
   HEADER
   ============================================= */
#bb-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(13,17,23,.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--bb-border);
    height: var(--bb-header-h);
}
.bb-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    gap: 1.5rem;
}
.bb-logo { display: flex; align-items: center; gap: .65rem; text-decoration: none; flex-shrink: 0; }
.bb-logo-icon {
    width: 44px; height: 44px;
    background: var(--bb-gradient);
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    box-shadow: var(--bb-shadow-glow);
}
.bb-logo-icon svg { width: 28px; height: 28px; }
.bb-logo-text { font-size: 1.5rem; font-weight: 800; color: var(--bb-white); letter-spacing: -.5px; }
.bb-logo-text span { color: var(--bb-blue); }

/* Nav */
.bb-nav { display: flex; align-items: center; gap: .25rem; }
.bb-nav a {
    color: var(--bb-text);
    font-weight: 500;
    padding: .5rem .85rem;
    border-radius: 8px;
    font-size: .92rem;
    white-space: nowrap;
}
.bb-nav a:hover, .bb-nav a.active {
    background: rgba(68,147,248,.12);
    color: var(--bb-blue-light);
}
.bb-nav a.bb-nav--challenge {
    background: var(--bb-gradient);
    color: var(--bb-white) !important;
    padding: .5rem 1rem;
    box-shadow: var(--bb-shadow-glow);
}
.bb-nav a.bb-nav--challenge:hover { opacity: .9; transform: translateY(-1px); }

/* Header actions */
.bb-header-actions { display: flex; align-items: center; gap: .75rem; flex-shrink: 0; }
.bb-btn { display: inline-flex; align-items: center; gap: .4rem; padding: .55rem 1.1rem; border-radius: 8px; font-weight: 600; font-size: .9rem; border: none; transition: var(--bb-transition); }
.bb-btn--ghost { background: transparent; color: var(--bb-text); border: 1px solid var(--bb-border); }
.bb-btn--ghost:hover { background: var(--bb-card); color: var(--bb-white); border-color: var(--bb-blue); }
.bb-btn--primary { background: var(--bb-gradient); color: var(--bb-white); box-shadow: var(--bb-shadow-glow); }
.bb-btn--primary:hover { opacity: .9; transform: translateY(-1px); box-shadow: 0 6px 25px rgba(68,147,248,.35); }
.bb-btn--secondary { background: rgba(168,85,247,.2); color: var(--bb-purple); border: 1px solid rgba(168,85,247,.4); }
.bb-btn--secondary:hover { background: rgba(168,85,247,.3); }
.bb-btn--sm { padding: .4rem .85rem; font-size: .82rem; }
.bb-btn--lg { padding: .85rem 2rem; font-size: 1rem; border-radius: var(--bb-radius); }
.bb-btn--danger { background: rgba(248,81,73,.15); color: var(--bb-red); border: 1px solid rgba(248,81,73,.35); }
.bb-btn--danger:hover { background: rgba(248,81,73,.25); }
.bb-btn--success { background: rgba(63,185,80,.15); color: var(--bb-green); border: 1px solid rgba(63,185,80,.35); }
.bb-btn--success:hover { background: rgba(63,185,80,.25); }

/* User avatar in header */
.bb-user-avatar { width: 36px; height: 36px; border-radius: 50%; background: var(--bb-gradient); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: .88rem; color: #fff; cursor: pointer; }

/* Mobile hamburger */
.bb-hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; padding: .5rem; cursor: pointer; }
.bb-hamburger span { display: block; width: 24px; height: 2px; background: var(--bb-text); border-radius: 2px; transition: var(--bb-transition); }

/* =============================================
   HERO SECTION
   ============================================= */
.bb-hero {
    min-height: calc(100vh - var(--bb-header-h));
    display: flex;
    align-items: center;
    background: var(--bb-gradient-dark);
    position: relative;
    overflow: hidden;
    padding: 5rem 0;
}
.bb-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 70% 50%, rgba(68,147,248,.12) 0%, transparent 70%),
        radial-gradient(ellipse 60% 50% at 30% 80%, rgba(168,85,247,.1) 0%, transparent 60%);
    pointer-events: none;
}
.bb-hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; position: relative; z-index: 1; }
.bb-hero-badge {
    display: inline-flex; align-items: center; gap: .5rem;
    background: rgba(68,147,248,.15);
    border: 1px solid rgba(68,147,248,.3);
    border-radius: 20px;
    padding: .35rem .9rem;
    font-size: .82rem;
    color: var(--bb-blue-light);
    font-weight: 600;
    margin-bottom: 1.25rem;
}
.bb-hero-badge::before { content: '⚡'; }
.bb-hero h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); font-weight: 900; color: var(--bb-white); margin-bottom: 1.25rem; letter-spacing: -1px; }
.bb-hero h1 .bb-gradient-text {
    background: var(--bb-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.bb-hero p { font-size: 1.15rem; color: var(--bb-muted); margin-bottom: 2rem; line-height: 1.7; }
.bb-hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }
.bb-hero-stats { display: flex; gap: 2rem; margin-top: 2.5rem; }
.bb-hero-stat-val { font-size: 1.6rem; font-weight: 800; color: var(--bb-white); }
.bb-hero-stat-label { font-size: .78rem; color: var(--bb-muted); text-transform: uppercase; letter-spacing: .5px; }

/* Hero visual */
.bb-hero-visual { display: flex; align-items: center; justify-content: center; }
.bb-hero-card-stack { position: relative; width: 340px; height: 340px; }
.bb-hero-main-card {
    position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%);
    width: 260px; height: 260px;
    background: var(--bb-card);
    border: 1px solid var(--bb-border);
    border-radius: var(--bb-radius-lg);
    display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1rem;
    box-shadow: 0 20px 60px rgba(0,0,0,.5), 0 0 40px rgba(68,147,248,.15);
    z-index: 2;
}
.bb-hero-main-card .hero-icon { font-size: 4rem; }
.bb-hero-main-card span { font-size: 1.1rem; font-weight: 700; color: var(--bb-white); }
.bb-hero-main-card p { font-size: .82rem; color: var(--bb-muted); }
@keyframes bbFloat { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

/* =============================================
   SECTION HEADINGS
   ============================================= */
.bb-section-head { text-align: center; margin-bottom: 3rem; }
.bb-section-head h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin-bottom: .6rem; }
.bb-section-head p { color: var(--bb-muted); font-size: 1rem; }
.bb-section-head--left { text-align: left; }
.bb-section-label {
    display: inline-block;
    font-size: .75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--bb-blue);
    margin-bottom: .5rem;
}

/* =============================================
   GAME CARDS
   ============================================= */
.bb-games-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1.25rem; }
.bb-game-card {
    background: var(--bb-card);
    border: 1px solid var(--bb-border);
    border-radius: var(--bb-radius-lg);
    overflow: hidden;
    transition: var(--bb-transition);
    cursor: pointer;
    text-decoration: none;
    display: block;
}
.bb-game-card:hover {
    transform: translateY(-4px);
    border-color: var(--bb-blue);
    box-shadow: 0 12px 40px rgba(0,0,0,.4), 0 0 20px rgba(68,147,248,.1);
}
.bb-game-card-thumb {
    height: 140px;
    display: flex; align-items: center; justify-content: center;
    font-size: 3.5rem;
    position: relative;
    overflow: hidden;
}
.bb-game-card-thumb-blue   { background: linear-gradient(135deg, #0d2040 0%, #1a3a6b 100%); }
.bb-game-card-thumb-purple { background: linear-gradient(135deg, #1a0d2e 0%, #3d1f6e 100%); }
.bb-game-card-thumb-teal   { background: linear-gradient(135deg, #0d2030 0%, #1a4a5a 100%); }
.bb-game-card-thumb-red    { background: linear-gradient(135deg, #2e0d0d 0%, #6e1f1f 100%); }
.bb-game-card-thumb-green  { background: linear-gradient(135deg, #0d2010 0%, #1a4a2a 100%); }
.bb-game-card-thumb-gold   { background: linear-gradient(135deg, #2a1e00 0%, #5a4000 100%); }
.bb-game-card-body { padding: 1.25rem; }
.bb-game-card-body h3 { font-size: 1rem; margin-bottom: .3rem; color: var(--bb-white); }
.bb-game-card-body p { font-size: .82rem; color: var(--bb-muted); line-height: 1.5; margin-bottom: .85rem; }
.bb-game-card-meta { display: flex; align-items: center; justify-content: space-between; }
.bb-badge { display: inline-flex; align-items: center; padding: .2rem .65rem; border-radius: 20px; font-size: .75rem; font-weight: 600; }
.bb-badge--blue   { background: rgba(68,147,248,.15); color: var(--bb-blue); }
.bb-badge--purple { background: rgba(168,85,247,.15); color: var(--bb-purple); }
.bb-badge--green  { background: rgba(63,185,80,.15);  color: var(--bb-green); }
.bb-badge--gold   { background: rgba(240,208,96,.15); color: var(--bb-gold); }
.bb-badge--red    { background: rgba(248,81,73,.15);  color: var(--bb-red); }
.bb-badge--cyan   { background: rgba(57,208,216,.15); color: var(--bb-cyan); }
.bb-xp-label { font-size: .75rem; color: var(--bb-gold); font-weight: 600; }

/* =============================================
   DAILY CHALLENGE PREVIEW
   ============================================= */
.bb-challenge-banner {
    background: linear-gradient(135deg, #0d1f3c 0%, #1a0d35 100%);
    border: 1px solid rgba(68,147,248,.25);
    border-radius: var(--bb-radius-lg);
    padding: 2.5rem;
    display: flex; align-items: center; gap: 2rem;
    position: relative; overflow: hidden;
}
.bb-challenge-banner::before {
    content: '';
    position: absolute; right: -50px; top: -50px;
    width: 200px; height: 200px;
    background: radial-gradient(circle, rgba(68,147,248,.15) 0%, transparent 70%);
    pointer-events: none;
}
.bb-challenge-icon { font-size: 3rem; flex-shrink: 0; }
.bb-challenge-content { flex: 1; }
.bb-challenge-content h3 { font-size: 1.25rem; margin-bottom: .5rem; }
.bb-challenge-content p { color: var(--bb-muted); font-size: .9rem; margin-bottom: 1rem; }
.bb-challenge-meta { display: flex; gap: 1.5rem; font-size: .8rem; }
.bb-challenge-meta span { color: var(--bb-muted); display: flex; align-items: center; gap: .3rem; }
.bb-challenge-meta strong { color: var(--bb-text); }

/* =============================================
   LEADERBOARD PREVIEW
   ============================================= */
.bb-leaderboard-table { width: 100%; border-collapse: collapse; }
.bb-leaderboard-table th {
    text-align: left; padding: .75rem 1rem;
    font-size: .75rem; text-transform: uppercase; letter-spacing: .5px;
    color: var(--bb-muted); border-bottom: 1px solid var(--bb-border);
}
.bb-leaderboard-table td { padding: .9rem 1rem; border-bottom: 1px solid rgba(48,54,61,.5); font-size: .9rem; }
.bb-leaderboard-table tr:last-child td { border-bottom: none; }
.bb-leaderboard-table tr:hover td { background: rgba(255,255,255,.02); }
.bb-rank { font-weight: 700; font-size: .95rem; }
.bb-rank--1 { color: var(--bb-gold); }
.bb-rank--2 { color: #c0c0c0; }
.bb-rank--3 { color: #cd7f32; }
.bb-country-flag { font-size: 1.1rem; }

/* =============================================
   XP / LEVEL DISPLAY
   ============================================= */
.bb-xp-bar-wrap { display: flex; flex-direction: column; gap: .4rem; }
.bb-xp-bar-track { height: 8px; background: var(--bb-border); border-radius: 4px; overflow: hidden; }
.bb-xp-bar-fill { height: 100%; background: var(--bb-gradient); border-radius: 4px; transition: width .6s ease; }
.bb-level-chip {
    display: inline-flex; align-items: center; gap: .4rem;
    background: rgba(168,85,247,.15); color: var(--bb-purple);
    border: 1px solid rgba(168,85,247,.3);
    border-radius: 20px; padding: .3rem .8rem; font-size: .82rem; font-weight: 700;
}

/* =============================================
   USER PROFILE / STATS
   ============================================= */
.bb-profile-header {
    background: var(--bb-card); border: 1px solid var(--bb-border); border-radius: var(--bb-radius-lg);
    padding: 2rem; display: flex; gap: 2rem; align-items: flex-start; flex-wrap: wrap; margin-bottom: 2rem;
}
.bb-profile-avatar {
    width: 80px; height: 80px; border-radius: 50%;
    background: var(--bb-gradient); display: flex; align-items: center; justify-content: center;
    font-size: 2rem; font-weight: 800; color: #fff; flex-shrink: 0;
    border: 3px solid rgba(68,147,248,.3);
}
.bb-stats-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 1rem; }
.bb-stat-card {
    background: var(--bb-card); border: 1px solid var(--bb-border); border-radius: var(--bb-radius);
    padding: 1.25rem; text-align: center;
}
.bb-stat-card .val { font-size: 1.8rem; font-weight: 800; color: var(--bb-white); }
.bb-stat-card .lbl { font-size: .78rem; color: var(--bb-muted); text-transform: uppercase; letter-spacing: .5px; margin-top: .2rem; }

/* Badges */
.bb-badges-grid { display: flex; flex-wrap: wrap; gap: .85rem; }
.bb-badge-item {
    display: flex; flex-direction: column; align-items: center; gap: .4rem;
    width: 80px; text-align: center;
}
.bb-badge-icon {
    width: 56px; height: 56px; border-radius: 50%;
    background: var(--bb-dark); border: 2px solid var(--bb-border);
    display: flex; align-items: center; justify-content: center; font-size: 1.5rem;
    transition: var(--bb-transition);
}
.bb-badge-item.earned .bb-badge-icon { border-color: var(--bb-gold); background: rgba(240,208,96,.1); box-shadow: 0 0 12px rgba(240,208,96,.2); }
.bb-badge-item span { font-size: .7rem; color: var(--bb-muted); line-height: 1.3; }
.bb-badge-item.earned span { color: var(--bb-text); }

/* =============================================
   GAME AREA (in-game UI)
   ============================================= */
.bb-game-area {
    min-height: calc(100vh - var(--bb-header-h));
    background: var(--bb-navy);
    display: flex; flex-direction: column;
}
.bb-game-header {
    background: var(--bb-dark); border-bottom: 1px solid var(--bb-border);
    padding: 1rem 1.5rem;
    display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem;
}
.bb-game-title { font-size: 1.1rem; font-weight: 700; color: var(--bb-white); display: flex; align-items: center; gap: .6rem; }
.bb-game-body { flex: 1; display: flex; align-items: flex-start; justify-content: center; padding: 2rem 1.5rem; }
.bb-game-panel {
    width: 100%; max-width: 700px;
    background: var(--bb-card); border: 1px solid var(--bb-border);
    border-radius: var(--bb-radius-lg); padding: 2rem;
}

/* Score / progress bars inside game */
.bb-progress-bar { height: 6px; background: var(--bb-border); border-radius: 3px; overflow: hidden; margin-bottom: .5rem; }
.bb-progress-bar-fill { height: 100%; background: var(--bb-gradient); border-radius: 3px; transition: width .4s ease; }

/* Choices */
.bb-choices { display: grid; grid-template-columns: 1fr 1fr; gap: .85rem; }
.bb-choice-btn {
    background: var(--bb-dark); border: 2px solid var(--bb-border); border-radius: var(--bb-radius);
    padding: 1rem; color: var(--bb-text); font-size: .95rem; font-weight: 500;
    cursor: pointer; transition: var(--bb-transition); text-align: left;
}
.bb-choice-btn:hover:not(:disabled) { border-color: var(--bb-blue); background: rgba(68,147,248,.08); color: var(--bb-white); }
.bb-choice-btn.correct { border-color: var(--bb-green); background: rgba(63,185,80,.12); color: var(--bb-green); }
.bb-choice-btn.wrong { border-color: var(--bb-red); background: rgba(248,81,73,.1); color: var(--bb-red); }
.bb-choice-btn:disabled { cursor: default; }

/* Timer circle */
.bb-timer-circle {
    width: 52px; height: 52px; border-radius: 50%;
    background: conic-gradient(var(--bb-blue) var(--pct, 100%), var(--bb-border) 0);
    display: flex; align-items: center; justify-content: center;
    font-size: 1rem; font-weight: 700; color: var(--bb-white);
    position: relative;
}
.bb-timer-circle::before {
    content: '';
    position: absolute; inset: 5px;
    background: var(--bb-card); border-radius: 50%;
}
.bb-timer-circle span { position: relative; z-index: 1; }

/* Score display */
.bb-score-box {
    display: inline-flex; align-items: center; gap: .4rem;
    background: rgba(240,208,96,.1); border: 1px solid rgba(240,208,96,.2);
    border-radius: 8px; padding: .35rem .8rem;
    font-weight: 700; color: var(--bb-gold); font-size: .9rem;
}

/* Results screen */
.bb-results {
    text-align: center; padding: 2rem 1rem;
}
.bb-results-score { font-size: 4rem; font-weight: 900; color: var(--bb-white); line-height: 1; }
.bb-results-label { font-size: .9rem; color: var(--bb-muted); margin-bottom: 1.5rem; }
.bb-results-grade { font-size: 1.2rem; margin-bottom: .5rem; }

/* =============================================
   FRIENDS CHALLENGE
   ============================================= */
.bb-challenge-share {
    background: var(--bb-dark); border: 1px solid var(--bb-border); border-radius: var(--bb-radius);
    padding: 1rem 1.25rem; display: flex; align-items: center; gap: .85rem;
}
.bb-challenge-share input { flex: 1; border: none; background: transparent; color: var(--bb-text); font-size: .9rem; cursor: text; }

/* =============================================
   FORMS (Login / Register)
   ============================================= */
.bb-auth-wrap {
    min-height: calc(100vh - var(--bb-header-h));
    display: flex; align-items: center; justify-content: center;
    padding: 2rem 1rem;
    background: var(--bb-gradient-dark);
}
.bb-auth-card {
    width: 100%; max-width: 420px;
    background: var(--bb-card); border: 1px solid var(--bb-border); border-radius: var(--bb-radius-lg);
    padding: 2.5rem;
}
.bb-auth-card h2 { margin-bottom: .4rem; }
.bb-auth-card .sub { color: var(--bb-muted); font-size: .9rem; margin-bottom: 2rem; }
.bb-form-row { margin-bottom: 1.25rem; }
.bb-form-row label { display: block; font-size: .85rem; font-weight: 600; color: var(--bb-text); margin-bottom: .4rem; }
.bb-form-row .hint { font-size: .76rem; color: var(--bb-muted); margin-top: .3rem; }
.bb-form-row .error { font-size: .76rem; color: var(--bb-red); margin-top: .3rem; }
.bb-divider { display: flex; align-items: center; gap: 1rem; margin: 1.5rem 0; }
.bb-divider::before, .bb-divider::after { content: ''; flex: 1; height: 1px; background: var(--bb-border); }
.bb-divider span { font-size: .8rem; color: var(--bb-muted); }

/* =============================================
   CARDS / CONTENT CARDS
   ============================================= */
.bb-card {
    background: var(--bb-card); border: 1px solid var(--bb-border); border-radius: var(--bb-radius-lg);
    padding: 1.5rem;
}
.bb-card h3 { margin-bottom: .75rem; font-size: 1rem; }

/* =============================================
   FOOTER
   ============================================= */
#bb-footer {
    background: var(--bb-dark);
    border-top: 1px solid var(--bb-border);
    padding: 3.5rem 0 2rem;
    margin-top: auto;
}
.bb-footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 2.5rem; margin-bottom: 3rem; }
.bb-footer-brand p { color: var(--bb-muted); font-size: .88rem; margin-top: .75rem; line-height: 1.7; }
.bb-footer-col h4 { font-size: .85rem; font-weight: 700; color: var(--bb-text); text-transform: uppercase; letter-spacing: .5px; margin-bottom: 1rem; }
.bb-footer-col ul { list-style: none; display: flex; flex-direction: column; gap: .5rem; }
.bb-footer-col ul li a { color: var(--bb-muted); font-size: .87rem; }
.bb-footer-col ul li a:hover { color: var(--bb-blue-light); }
.bb-footer-bottom { border-top: 1px solid var(--bb-border); padding-top: 1.5rem; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }
.bb-footer-bottom p { color: var(--bb-muted); font-size: .82rem; }
.bb-footer-links { display: flex; gap: 1.5rem; }
.bb-footer-links a { color: var(--bb-muted); font-size: .82rem; }
.bb-footer-links a:hover { color: var(--bb-text); }

/* =============================================
   ADMIN / DASHBOARD
   ============================================= */
.bb-admin-header { background: var(--bb-dark); border-bottom: 2px solid var(--bb-blue); padding: 1rem 1.5rem; }
.bb-admin-tabs { display: flex; gap: .25rem; flex-wrap: wrap; margin-bottom: 1.5rem; }
.bb-admin-tab {
    padding: .55rem 1.1rem; border-radius: 8px; font-size: .88rem; font-weight: 600;
    background: var(--bb-dark); color: var(--bb-muted); border: 1px solid var(--bb-border);
    cursor: pointer; transition: var(--bb-transition);
}
.bb-admin-tab.active, .bb-admin-tab:hover { background: rgba(68,147,248,.1); color: var(--bb-blue); border-color: rgba(68,147,248,.3); }
.bb-admin-section { display: none; }
.bb-admin-section.active { display: block; }
.bb-table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.bb-table th { padding: .75rem 1rem; text-align: left; font-size: .75rem; text-transform: uppercase; letter-spacing: .5px; color: var(--bb-muted); border-bottom: 1px solid var(--bb-border); }
.bb-table td { padding: .85rem 1rem; border-bottom: 1px solid rgba(48,54,61,.5); color: var(--bb-text); }
.bb-table tr:hover td { background: rgba(255,255,255,.02); }

/* =============================================
   ALERTS / NOTICES
   ============================================= */
.bb-alert { padding: 1rem 1.25rem; border-radius: var(--bb-radius); margin-bottom: 1rem; font-size: .9rem; display: flex; align-items: flex-start; gap: .6rem; }
.bb-alert--success { background: rgba(63,185,80,.12); border-left: 3px solid var(--bb-green); color: var(--bb-green); }
.bb-alert--error   { background: rgba(248,81,73,.12); border-left: 3px solid var(--bb-red); color: var(--bb-red); }
.bb-alert--info    { background: rgba(68,147,248,.1); border-left: 3px solid var(--bb-blue); color: var(--bb-blue-light); }
.bb-alert--warning { background: rgba(240,208,96,.1); border-left: 3px solid var(--bb-gold); color: var(--bb-gold); }

/* =============================================
   AD ZONES
   ============================================= */
.bb-ad-zone { text-align: center; padding: 1rem; }
.bb-ad-zone--horizontal { max-width: 728px; margin: 0 auto; min-height: 90px; display: flex; align-items: center; justify-content: center; background: rgba(255,255,255,.02); border: 1px dashed var(--bb-border); border-radius: 8px; }
.bb-ad-zone--rect { max-width: 336px; min-height: 280px; display: flex; align-items: center; justify-content: center; background: rgba(255,255,255,.02); border: 1px dashed var(--bb-border); border-radius: 8px; }

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1024px) {
    .bb-footer-grid { grid-template-columns: 1fr 1fr; }
    .bb-hero-grid { gap: 2.5rem; }
    .bb-hero-visual { display: none; }
}
@media (max-width: 768px) {
    .bb-nav { display: none; flex-direction: column; position: absolute; top: var(--bb-header-h); left: 0; right: 0; background: var(--bb-dark); border-bottom: 1px solid var(--bb-border); padding: 1rem; gap: .25rem; z-index: 999; }
    .bb-nav.open { display: flex; }
    .bb-hamburger { display: flex; }
    .bb-hero-grid { grid-template-columns: 1fr; }
    .bb-hero-stats { flex-wrap: wrap; gap: 1.25rem; }
    .bb-choices { grid-template-columns: 1fr; }
    .bb-footer-grid { grid-template-columns: 1fr; }
    .bb-challenge-banner { flex-direction: column; }
    .bb-profile-header { flex-direction: column; }
    .bb-footer-bottom { flex-direction: column; text-align: center; }
    .bb-footer-links { justify-content: center; }
}
@media (max-width: 480px) {
    .bb-hero h1 { font-size: 2rem; }
    .bb-hero-actions { flex-direction: column; }
    .bb-game-panel { padding: 1.25rem; }
    .bb-auth-card { padding: 1.75rem 1.25rem; }
}

/* =============================================
   UTILITY CLASSES
   ============================================= */
.bb-text-center { text-align: center; }
.bb-text-muted { color: var(--bb-muted); }
.bb-text-gradient { background: var(--bb-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.bb-mt-1 { margin-top: .5rem; } .bb-mt-2 { margin-top: 1rem; } .bb-mt-3 { margin-top: 1.5rem; }
.bb-mb-1 { margin-bottom: .5rem; } .bb-mb-2 { margin-bottom: 1rem; } .bb-mb-3 { margin-bottom: 1.5rem; }
.bb-flex { display: flex; align-items: center; }
.bb-flex-between { display: flex; align-items: center; justify-content: space-between; }
.bb-gap-1 { gap: .5rem; } .bb-gap-2 { gap: 1rem; } .bb-gap-3 { gap: 1.5rem; }
.bb-hidden { display: none !important; }
.bb-spinner { width: 32px; height: 32px; border: 3px solid var(--bb-border); border-top-color: var(--bb-blue); border-radius: 50%; animation: bbSpin .7s linear infinite; }
@keyframes bbSpin { to { transform: rotate(360deg); } }
.bb-separator { border: none; border-top: 1px solid var(--bb-border); margin: 2rem 0; }
/* Scrollbar */
::-webkit-scrollbar { width: 6px; } ::-webkit-scrollbar-track { background: var(--bb-navy); } ::-webkit-scrollbar-thumb { background: var(--bb-border); border-radius: 3px; }
/* Pulse animation for daily challenge */
@keyframes bbPulse { 0%,100% { box-shadow: 0 0 0 0 rgba(68,147,248,.4); } 50% { box-shadow: 0 0 0 8px rgba(68,147,248,0); } }
.bb-pulse { animation: bbPulse 2s infinite; }
/* Confetti colors for victory */
.bb-confetti { position: fixed; pointer-events: none; top: 0; left: 0; width: 100%; height: 100%; z-index: 9999; }


/* =============================================
   HERO CARD - ENGAGING ANIMATIONS
   ============================================= */

@keyframes bb-hero-float {
    0%, 100% { transform: translate(-50%, -50%) translateY(0px); }
    50%       { transform: translate(-50%, -50%) translateY(-12px); }
}

@keyframes bb-hero-glow {
    0%, 100% { box-shadow: 0 8px 40px rgba(139, 92, 246, 0.25), 0 0 0 0 rgba(139, 92, 246, 0); }
    50%       { box-shadow: 0 16px 60px rgba(139, 92, 246, 0.5), 0 0 30px 8px rgba(139, 92, 246, 0.2); }
}

@keyframes bb-brain-pulse {
    0%, 100% { transform: scale(1); }
    50%       { transform: scale(1.12); }
}

@keyframes bb-hero-entrance {
    0%   { opacity: 0; transform: translate(-50%, -50%) scale(0.85) translateY(20px); }
    100% { opacity: 1; transform: translate(-50%, -50%) scale(1)    translateY(0px); }
}

.bb-hero-main-card {
    animation:
        bb-hero-entrance 0.7s cubic-bezier(0.34, 1.56, 0.64, 1) both,
        bb-hero-float    4s ease-in-out 0.7s infinite,
        bb-hero-glow     4s ease-in-out 0.7s infinite;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.bb-hero-main-card:hover {
    animation-play-state: paused;
    transform: translate(-50%, -50%) scale(1.04) translateY(-6px) !important;
    box-shadow: 0 20px 60px rgba(139, 92, 246, 0.6) !important;
}

.bb-hero-main-card .hero-icon {
    animation: bb-brain-pulse 3s ease-in-out 1.2s infinite;
    display: inline-block;
}

/* =============================================
   ARTICLE CARDS - THUMBNAIL IMAGES
   ============================================= */

.bb-game-card-thumb-article {
    background: var(--bb-card);
    overflow: hidden;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.bb-game-card-thumb-article .bb-article-thumb-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--bb-radius) var(--bb-radius) 0 0;
    display: block;
    transition: transform 0.4s ease;
}

.bb-game-card:hover .bb-article-thumb-img {
    transform: scale(1.06);
}

/* fallback emoji when no image */
.bb-game-card-thumb-article span {
    font-size: 2.5rem;
}