/* ═══════════════════════════════════════════════════════════════════
   QuizEarn Pro — Unified Design System v5.0
   Fixes: ad gaps, spacing, responsiveness, premium UI polish
   ═══════════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+Devanagari:wght@400;500;600;700;800&family=Sora:wght@400;500;600;700;800;900&display=swap');

/* ─── ROOT VARIABLES ─────────────────────────────────────────────── */
:root {
    --bg-deep:     #0c0818;
    --bg-mid:      #141028;
    --bg-card:     #1e1738;
    --bg-card2:    #191430;
    --gold:        #f5c97a;
    --peach:       #f4a882;
    --violet:      #a78bfa;
    --white:       #ffffff;
    --text-main:   #ffffff;
    --text-muted:  rgba(255,255,255,0.52);
    --border:      rgba(255,255,255,0.07);
    --border-gold: rgba(245,201,122,0.18);
    --glass:       rgba(255,255,255,0.04);
    --glass-hover: rgba(255,255,255,0.07);
    --shadow-gold: 0 8px 28px rgba(245,201,122,0.20);
    --shadow-card: 0 4px 24px rgba(0,0,0,0.30);
    --radius-sm:   10px;
    --radius-md:   14px;
    --radius-lg:   20px;
    --radius-xl:   26px;
    --font-brand:  'Sora', sans-serif;
    --font-body:   'Noto Sans Devanagari', 'Sora', sans-serif;
    --transition:  0.22s cubic-bezier(0.4,0,0.2,1);
    --nav-height:  62px;
}

/* ─── RESET & BASE ───────────────────────────────────────────────── */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background: var(--bg-deep);
    background-image:
        radial-gradient(ellipse 90% 55% at 5% 0%,   rgba(167,139,250,0.08) 0%, transparent 55%),
        radial-gradient(ellipse 70% 50% at 95% 95%, rgba(245,201,122,0.06) 0%, transparent 55%);
    background-attachment: fixed;
    font-family: var(--font-body);
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-tap-highlight-color: transparent;
}

/* ─── ANIMATIONS ─────────────────────────────────────────────────── */
@keyframes slideUp    { from{opacity:0;transform:translateY(14px)} to{opacity:1;transform:none} }
@keyframes scaleIn    { from{opacity:0;transform:scale(0.95)}      to{opacity:1;transform:none} }
@keyframes fadeIn     { from{opacity:0} to{opacity:1} }
@keyframes qe-slideup { from{opacity:0;transform:translateY(14px)} to{opacity:1;transform:none} }
@keyframes qe-pulse   { 0%,100%{transform:scale(1);opacity:0.4} 50%{transform:scale(1.1);opacity:0.25} }
@keyframes qe-fadein  { from{opacity:0} to{opacity:1} }
@keyframes shimmer    { from{background-position:-200% 0} to{background-position:200% 0} }

/* ─── LAYOUT SHELL ───────────────────────────────────────────────── */
.qe-shell {
    display: flex;
    min-height: 100vh;
    width: 100%;
}

.qe-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.qe-page {
    flex: 1;
    padding: 16px;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    animation: slideUp 0.34s ease-out;
}

/* ─── DESKTOP SIDEBAR NAV ────────────────────────────────────────── */
.qe-desktop-nav {
    display: none;
    width: 220px;
    flex-shrink: 0;
    background: var(--bg-mid);
    border-right: 1px solid var(--border);
    padding: 18px 12px;
    flex-direction: column;
    gap: 2px;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}

.qe-desktop-nav .nav-logo {
    text-align: center;
    margin-bottom: 18px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--border);
}

.qe-desktop-nav .nav-logo img {
    height: 48px;
    border-radius: var(--radius-md);
    box-shadow: 0 4px 14px rgba(0,0,0,0.4);
}

.qe-desktop-nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 13px;
    border-radius: var(--radius-md);
    color: var(--text-muted);
    text-decoration: none;
    font-family: var(--font-brand);
    font-weight: 600;
    font-size: 13px;
    transition: var(--transition);
    border: 1px solid transparent;
    letter-spacing: -0.1px;
}

.qe-desktop-nav a i { width:16px; font-size:13px; color:var(--peach); transition:var(--transition); flex-shrink:0; }

.qe-desktop-nav a:hover:not(.active-page) {
    background: var(--glass-hover);
    color: var(--text-main);
    transform: translateX(2px);
}

.qe-desktop-nav a.active-page {
    background: linear-gradient(135deg, var(--gold), var(--peach));
    color: var(--bg-deep);
    border-color: transparent;
    box-shadow: 0 4px 14px rgba(245,201,122,0.22);
}

.qe-desktop-nav a.active-page i { color:var(--bg-deep); }
.qe-desktop-nav .logout-nav { color:var(--peach) !important; margin-top:8px; }
.qe-desktop-nav .nav-version {
    text-align:center; font-size:10px;
    color:var(--text-muted); font-family:var(--font-brand);
    padding-top:14px; margin-top:auto;
    letter-spacing:0.5px;
}

/* ─── AD ZONES — ZERO BLANK SPACE GUARANTEED ─────────────────────── */
/*
   Script tags from ad networks render as block elements and create
   height even when the ad fails/is blocked. We clamp this with
   max-height:0 default and only expand if the ad actually loads.
*/

.qe-ad-top {
    position: sticky;
    top: 0;
    z-index: 200;
    width: 100%;
    background: linear-gradient(90deg, rgba(12,8,24,0.97), rgba(20,16,40,0.97));
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 0;
    /* No height unless ad injects content */
}

.qe-ad-top > * { max-height: 54px; overflow: hidden; }
.qe-ad-top:empty,
.qe-ad-top > script:only-child { display: none; }

/* Inline ad zones — collapse by default */
.qe-ad-zone {
    width: 100%;
    min-height: 0;
    overflow: hidden;
    border-radius: var(--radius-sm);
    /* Script tags render no visible content alone */
    font-size: 0;
    line-height: 0;
}

/* Hide stray script-only zones */
.qe-ad-zone > script:only-child,
.qe-ad-zone:empty { display: none; }

/* If ad network renders an iframe or div, give it breathing room */
.qe-ad-zone iframe,
.qe-ad-zone > div:not(:empty),
.qe-ad-zone > ins { display: block; width: 100%; }

/* ─── TOPBAR ─────────────────────────────────────────────────────── */
.qe-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.qe-topbar .menu-btn,
.qe-topbar .icon-btn {
    width: 40px; height: 40px;
    border-radius: var(--radius-md);
    background: var(--glass);
    border: 1px solid var(--border);
    display: flex; align-items:center; justify-content:center;
    color: var(--text-main);
    cursor: pointer; font-size: 16px;
    text-decoration: none;
    transition: var(--transition);
    flex-shrink: 0;
}

.qe-topbar .icon-btn.accent {
    background: linear-gradient(135deg, var(--peach), var(--gold));
    border-color: transparent;
    color: var(--bg-deep);
    box-shadow: var(--shadow-gold);
}

.qe-topbar .menu-btn:hover,
.qe-topbar .icon-btn:hover:not(.accent) { background:var(--glass-hover); border-color:var(--border-gold); }
.qe-topbar .icon-btn.accent:hover { filter:brightness(1.07); transform:scale(1.04); }

.qe-topbar .logo-img {
    height: 40px;
    object-fit: contain;
    filter: drop-shadow(0 3px 8px rgba(0,0,0,0.3));
}

.qe-page-title {
    font-family: var(--font-brand);
    font-size: clamp(16px, 4vw, 22px);
    font-weight: 800;
    background: linear-gradient(135deg, var(--gold), var(--peach));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

/* ─── SECTION TITLE ─────────────────────────────────────────────── */
.qe-section-title {
    font-family: var(--font-brand);
    font-size: 11px;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1.2px;
    margin: 14px 0 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.qe-section-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
    border-radius: 2px;
}

/* ─── CARDS ──────────────────────────────────────────────────────── */
.qe-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 16px;
    box-shadow: var(--shadow-card);
    transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.qe-card:hover {
    border-color: var(--border-gold);
    box-shadow: 0 8px 32px rgba(0,0,0,0.32);
}

/* ─── BANNER ─────────────────────────────────────────────────────── */
.qe-banner {
    background: linear-gradient(135deg, #f5c97a 0%, #f4a882 100%);
    border-radius: var(--radius-lg);
    padding: 24px 20px;
    color: var(--bg-deep);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-gold);
    text-align: center;
}

.qe-banner::before {
    content:'';
    position:absolute; top:-50px; right:-50px;
    width:160px; height:160px;
    background:rgba(255,255,255,0.12);
    border-radius:50%;
    animation: qe-pulse 5s ease-in-out infinite;
    pointer-events:none;
}

.qe-banner::after {
    content:'';
    position:absolute; bottom:-40px; left:-20px;
    width:100px; height:100px;
    background:rgba(255,255,255,0.07);
    border-radius:50%;
    pointer-events:none;
}

.qe-banner .bal-label {
    font-family:var(--font-brand); font-size:10px; font-weight:700;
    text-transform:uppercase; letter-spacing:1.8px; opacity:0.62;
}

.qe-banner .bal-amount {
    font-family:var(--font-brand);
    font-size: clamp(32px,6vw,50px);
    font-weight:900; letter-spacing:-2px;
    margin:6px 0 14px; position:relative; z-index:1;
    line-height:1;
}

/* ─── STATS GRID ─────────────────────────────────────────────────── */
.qe-stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.qe-stat-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 14px 12px;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.qe-stat-box::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--gold), var(--peach));
    opacity: 0;
    transition: opacity var(--transition);
}

.qe-stat-box:hover { transform:translateY(-3px); border-color:var(--border-gold); box-shadow: var(--shadow-gold); }
.qe-stat-box:hover::before { opacity:1; }

.qe-stat-box .stat-icon {
    font-size:17px;
    background:linear-gradient(135deg,var(--gold),var(--peach));
    -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
    display:block; margin-bottom:6px;
}

.qe-stat-box .stat-label {
    font-size:9px; font-family:var(--font-brand);
    text-transform:uppercase; letter-spacing:1px;
    color:var(--text-muted); display:block; margin-bottom:4px;
}

.qe-stat-box .stat-value {
    font-family:var(--font-brand); font-size:18px; font-weight:800;
    background:linear-gradient(135deg,var(--gold),var(--peach));
    -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
    line-height: 1.1;
}

/* ─── PROGRESS BAR ───────────────────────────────────────────────── */
.qe-progress-wrap {
    height: 7px;
    background: rgba(0,0,0,0.35);
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 12px;
}

.qe-progress-bar {
    height:100%;
    background:linear-gradient(90deg, var(--gold), var(--peach));
    border-radius:8px;
    box-shadow:0 0 8px rgba(245,201,122,0.5);
    transition:width 0.9s cubic-bezier(0.4,0,0.2,1);
    position: relative;
    overflow: hidden;
}

.qe-progress-bar::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.28), transparent);
    background-size: 200% 100%;
    animation: shimmer 2.2s infinite;
}

/* ─── BUTTONS ────────────────────────────────────────────────────── */
.qe-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    border-radius: var(--radius-md);
    font-family: var(--font-brand);
    font-weight: 700;
    font-size: 13.5px;
    cursor: pointer;
    border: none;
    text-decoration: none;
    transition: var(--transition);
    text-align: center;
    width: 100%;
    letter-spacing: -0.2px;
    position: relative;
    overflow: hidden;
}

.qe-btn.primary {
    background: linear-gradient(135deg, var(--gold), var(--peach));
    color: var(--bg-deep);
    box-shadow: var(--shadow-gold);
}

.qe-btn.primary:hover { transform:translateY(-2px); filter:brightness(1.07); box-shadow: 0 12px 32px rgba(245,201,122,0.30); }
.qe-btn.primary:active { transform:scale(0.97); }

.qe-btn.ghost {
    background: var(--glass);
    color: var(--text-main);
    border: 1px solid var(--border);
}

.qe-btn.ghost:hover { background:var(--glass-hover); border-color:var(--border-gold); }

.qe-btn.dark {
    background: rgba(0,0,0,0.28);
    color: var(--text-main);
    box-shadow: var(--shadow-card);
    width: auto;
    border: 1px solid rgba(255,255,255,0.10);
}

.qe-btn.dark:hover { background:rgba(0,0,0,0.4); }

.qe-btn:disabled, .qe-btn.disabled {
    background: rgba(255,255,255,0.06) !important;
    color: rgba(255,255,255,0.25) !important;
    box-shadow: none !important;
    cursor: not-allowed;
    pointer-events: none;
}

/* ─── FORMS & INPUTS ─────────────────────────────────────────────── */
.qe-input-group { position:relative; margin-bottom:12px; }

.qe-input-group i {
    position:absolute; left:13px; top:50%; transform:translateY(-50%);
    color:var(--gold); font-size:14px; pointer-events:none;
}

.qe-input {
    width:100%; padding:12px 13px 12px 42px;
    background:rgba(0,0,0,0.25);
    border:1.5px solid var(--border);
    border-radius:var(--radius-md);
    color:var(--text-main);
    font-family:var(--font-body); font-size:14px;
    transition:var(--transition);
}

.qe-input:focus {
    outline:none; border-color:var(--gold);
    background:rgba(0,0,0,0.32);
    box-shadow:0 0 0 3px rgba(245,201,122,0.10);
}

.qe-input::placeholder { color:rgba(255,255,255,0.35); }

/* ─── ALERTS ─────────────────────────────────────────────────────── */
.qe-alert {
    padding:11px 14px; border-radius:var(--radius-md);
    font-size:13px; font-weight:600;
    display:flex; align-items:center; gap:9px;
    margin-bottom:12px; border:1px solid;
    line-height: 1.4;
}

.qe-alert.error   { background:rgba(239,68,68,0.08);   color:#f87171; border-color:rgba(239,68,68,0.15); }
.qe-alert.success { background:rgba(52,211,153,0.08);  color:#6ee7b7; border-color:rgba(52,211,153,0.15); }
.qe-alert.info    { background:rgba(59,130,246,0.08);  color:#93c5fd; border-color:rgba(59,130,246,0.15); }
.qe-alert.warning { background:rgba(245,158,11,0.08);  color:#fcd34d; border-color:rgba(245,158,11,0.15); }

/* ─── AVATAR ─────────────────────────────────────────────────────── */
.qe-avatar {
    width:48px; height:48px;
    border-radius:var(--radius-md);
    background:linear-gradient(135deg, var(--gold), var(--peach));
    display:flex; align-items:center; justify-content:center;
    font-family:var(--font-brand); font-size:17px; font-weight:800;
    color:var(--bg-deep); overflow:hidden; flex-shrink:0;
    border:2px solid rgba(255,255,255,0.10);
    box-shadow: 0 4px 12px rgba(245,201,122,0.25);
}

.qe-avatar img { width:100%; height:100%; object-fit:cover; }

/* ─── PROFILE CARD ───────────────────────────────────────────────── */
.qe-profile-card {
    display:flex; align-items:center; gap:13px;
    background: linear-gradient(135deg, var(--bg-card), var(--bg-card2));
    border:1px solid var(--border);
    border-radius:var(--radius-lg);
    padding:14px 16px;
    box-shadow: var(--shadow-card);
    transition: border-color var(--transition);
}

.qe-profile-card:hover { border-color: var(--border-gold); }
.qe-profile-card .welcome-msg p { font-size:12px; color:var(--text-muted); margin-bottom:2px; }
.qe-profile-card .welcome-msg h2 { font-family:var(--font-brand); font-size:16px; font-weight:800; }

/* ─── DASHBOARD GRID ─────────────────────────────────────────────── */
.qe-dashboard-grid { display:flex; flex-direction:column; gap:12px; }

/* ─── REFERRAL BOX ───────────────────────────────────────────────── */
.qe-referral-box {
    background: var(--bg-card);
    border: 1px solid var(--border-gold);
    border-radius: var(--radius-lg);
    padding: 16px;
    box-shadow: 0 4px 20px rgba(245,201,122,0.08);
}

.qe-referral-box h4 {
    font-family:var(--font-brand); font-size:13.5px; font-weight:700;
    margin-bottom:10px;
    background:linear-gradient(135deg,var(--gold),var(--peach));
    -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
}

.qe-copy-btn {
    width:100%; display:flex; align-items:center; justify-content:space-between;
    gap:10px; padding:10px 13px;
    background:rgba(0,0,0,0.25); border:1.5px dashed rgba(245,201,122,0.22);
    border-radius:var(--radius-sm); cursor:pointer;
    color:var(--text-main); transition:var(--transition);
}

.qe-copy-btn:hover { border-color:var(--gold); background:rgba(245,201,122,0.06); }

/* ─── BOTTOM NAVIGATION (mobile) ────────────────────────────────── */
.qe-bottom-nav {
    display: flex;
    position: fixed;
    bottom: 0; left: 0; right: 0;
    background: rgba(12,8,24,0.96);
    border-top: 1px solid var(--border);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    z-index: 9000;
    padding: 6px 4px calc(6px + env(safe-area-inset-bottom));
    box-shadow: 0 -8px 24px rgba(0,0,0,0.3);
}

.qe-bottom-nav a {
    flex: 1;
    display: flex; flex-direction:column; align-items:center; justify-content:center;
    gap: 3px;
    color: var(--text-muted);
    text-decoration: none;
    font-family: var(--font-brand);
    font-size: 9.5px; font-weight: 600;
    transition: var(--transition);
    padding: 4px 0;
    border-radius: var(--radius-sm);
}

.qe-bottom-nav a i { font-size: 17px; transition: var(--transition); }
.qe-bottom-nav a.active { color: var(--gold); }
.qe-bottom-nav a.active i {
    filter: drop-shadow(0 0 6px rgba(245,201,122,0.55));
    transform: scale(1.1);
}

/* ─── QUIZ META ──────────────────────────────────────────────────── */
.quiz-meta {
    display: flex; justify-content:space-between; align-items:center;
    margin-bottom: 10px;
    font-family: var(--font-brand); font-size:13px; font-weight:700;
}

.quiz-count {
    background: linear-gradient(135deg,var(--gold),var(--peach));
    -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
    font-weight:800;
}

/* ─── RESPONSIVE ─────────────────────────────────────────────────── */
@media (min-width: 900px) {
    .qe-desktop-nav { display: flex; }
    .qe-topbar .menu-btn { display: none; }
    .qe-bottom-nav { display: none; }
    .qe-page { padding: 26px 32px; }
    .qe-stats-grid { grid-template-columns: repeat(4, 1fr); }
    .qe-dashboard-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 16px;
        align-items: start;
    }
}

@media (max-width: 899px) {
    body { padding-bottom: 70px; }
    .qe-page { padding: 12px; }
}

@media (max-width: 480px) {
    .qe-page { padding: 10px; }
    .qe-banner { padding: 20px 16px; }
    .qe-card { padding: 13px; }
    .qe-stats-grid { gap: 8px; }
    .qe-topbar { margin-bottom: 12px; padding-bottom: 10px; }
}