/* =============================================
   QITRADE PREMIUM DESIGN SYSTEM
   Dark mode · Glassmorphism · Ultra-modern
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    /* Brand */
    --primary-color: #F0B90B;
    --primary-hover: #D4A20A;
    --primary-glow: rgba(240, 185, 11, 0.15);
    --accent-blue: #1E90FF;

    /* Dark backgrounds */
    --bg-color: #0B0E11;
    --bg-secondary: #13171E;
    --bg-tertiary: #1E2531;
    --card-bg: rgba(255,255,255,0.04);
    --card-border: rgba(255,255,255,0.07);
    --card-hover: rgba(255,255,255,0.07);

    /* Text */
    --text-main: #EAECEF;
    --text-muted: #848E9C;
    --text-dim: #5E6673;

    /* Status */
    --positive-color: #0ECB81;
    --positive-bg: rgba(14, 203, 129, 0.12);
    --negative-color: #F6465D;
    --negative-bg: rgba(246, 70, 93, 0.12);

    /* Border & Shadow */
    --border-color: rgba(255,255,255,0.07);
    --shadow-glow: 0 0 40px rgba(240, 185, 11, 0.05);
    --shadow-card: 0 4px 24px rgba(0,0,0,0.4);
    --shadow-modal: 0 20px 60px rgba(0,0,0,0.7);

    /* Radius */
    --border-radius-lg: 16px;
    --border-radius-md: 12px;
    --border-radius-sm: 8px;
    --border-radius-xs: 6px;
    --border-radius-pill: 100px;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-xs: clamp(10px, 1.1vw, 12px);
    --font-sm: clamp(12px, 1.3vw, 13px);
    --font-md: clamp(13px, 1.5vw, 15px);
    --font-lg: clamp(15px, 2vw, 18px);
    --font-xl: clamp(18px, 2.5vw, 22px);
    --font-xxl: clamp(28px, 4.5vw, 44px);

    --container-padding: clamp(16px, 4vw, 32px);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-main);
    font-size: var(--font-md);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    background-image:
        radial-gradient(ellipse 60% 40% at 50% -10%, rgba(240, 185, 11, 0.06) 0%, transparent 70%),
        radial-gradient(ellipse 40% 30% at 90% 80%, rgba(30, 144, 255, 0.04) 0%, transparent 70%);
    background-attachment: fixed;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; height: auto; object-fit: cover; display: block; loading: lazy; }

button, .btn, .nav-item, .icon-btn, .tab, .change-btn, .btn-primary, .btn-sm {
    min-height: 44px;
    min-width: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

/* ── Container ── */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ── Topbar ── */
.topbar {
    background: rgba(11, 14, 17, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    height: clamp(56px, 8vw, 64px);
}

.topbar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    height: 100%;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: var(--font-lg);
    color: var(--text-main);
    letter-spacing: -0.3px;
}

.logo-icon {
    width: 34px;
    height: 34px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0B0E11;
    font-size: 15px;
    font-weight: 800;
    box-shadow: 0 4px 16px var(--primary-glow);
}

.logo-area span {
    background: linear-gradient(90deg, var(--text-main), var(--primary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ── Search ── */
.search-bar {
    display: none;
    flex: 1;
    max-width: 380px;
    margin: 0 clamp(16px, 2vw, 24px);
    position: relative;
}

.search-bar input {
    width: 100%;
    min-height: 40px;
    padding: 8px 16px 8px 42px;
    border-radius: var(--border-radius-pill);
    border: 1px solid var(--border-color);
    background: var(--bg-tertiary);
    color: var(--text-main);
    font-size: var(--font-sm);
    font-family: inherit;
    outline: none;
    transition: all 0.2s;
}

.search-bar input::placeholder { color: var(--text-dim); }

.search-bar input:focus {
    border-color: var(--primary-color);
    background: var(--bg-secondary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-dim);
    font-size: 13px;
}

/* ── Topbar Actions ── */
.topbar-actions {
    display: none;
    align-items: center;
    gap: clamp(6px, 1vw, 14px);
}

.hamburger-btn {
    display: flex;
    background: none;
    border: none;
    color: var(--text-main);
    font-size: var(--font-xl);
}

.icon-btn {
    color: var(--text-muted);
    font-size: var(--font-lg);
    background: none;
    border: none;
    transition: color 0.2s;
    width: 38px;
    height: 38px;
    border-radius: var(--border-radius-xs);
}

.icon-btn:hover { color: var(--primary-color); }

.btn-deposit {
    background: #F0B90B !important;
    color: #0B0E11 !important;
    padding: 0 clamp(16px, 2vw, 22px);
    height: 38px;
    min-height: 38px;
    min-width: 44px;
    border-radius: var(--border-radius-pill);
    font-weight: 700;
    font-size: var(--font-sm);
    transition: all 0.2s ease;
    border: none;
    letter-spacing: 0.2px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    text-decoration: none;
}

.btn-deposit:hover {
    background: #D4A20A !important;
    box-shadow: 0 4px 20px rgba(240, 185, 11, 0.4) !important;
    transform: translateY(-1px);
    color: #0B0E11 !important;
}

/* ── Dashboard ── */
.dashboard-content {
    padding: clamp(24px, 4vw, 40px) 0 clamp(80px, 10vw, 100px);
    width: 100%;
}

/* ── Balance Hero Section ── */
.balance-section {
    text-align: center;
    padding: clamp(20px, 4vw, 40px) 0 clamp(24px, 3vw, 32px);
    position: relative;
}

.balance-section::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    height: 200px;
    background: radial-gradient(ellipse, var(--primary-glow) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

.balance-section > * { position: relative; z-index: 1; }

.balance-title {
    font-size: var(--font-sm);
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    letter-spacing: 0.3px;
}

.balance-amount {
    font-size: var(--font-xxl);
    font-weight: 800;
    letter-spacing: -2px;
    margin-bottom: 6px;
    color: var(--text-main);
    line-height: 1;
}

.balance-currency {
    font-size: var(--font-md);
    color: var(--text-muted);
    font-weight: 500;
    letter-spacing: 1px;
}

/* ── Shortcuts ── */
.shortcuts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(64px, 1fr));
    gap: clamp(8px, 2vw, 20px);
    margin-bottom: clamp(24px, 4vw, 36px);
    justify-items: center;
}

.shortcut-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
    text-align: center;
}

.shortcut-item:hover { transform: translateY(-4px); }

.shortcut-icon {
    width: clamp(50px, 8vw, 58px);
    height: clamp(50px, 8vw, 58px);
    background: var(--bg-tertiary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-xl);
    color: var(--primary-color);
    border: 1px solid var(--border-color);
    transition: all 0.25s ease;
    position: relative;
    overflow: hidden;
}

.shortcut-icon::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--primary-glow);
    opacity: 0;
    transition: opacity 0.25s;
}

.shortcut-item:hover .shortcut-icon {
    border-color: var(--primary-color);
    box-shadow: 0 0 20px var(--primary-glow);
}

.shortcut-item:hover .shortcut-icon::before { opacity: 1; }

.shortcut-label {
    font-size: var(--font-xs);
    font-weight: 500;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 70px;
    transition: color 0.2s;
}

.shortcut-item:hover .shortcut-label { color: var(--text-main); }

/* ── Cards Grid ── */
.cards-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: clamp(10px, 2vw, 14px);
    margin-bottom: clamp(28px, 4vw, 36px);
}

.card {
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    padding: clamp(16px, 3vw, 24px);
    border: 1px solid var(--card-border);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.03) 0%, transparent 60%);
    pointer-events: none;
}

.card:hover {
    background: var(--card-hover);
    border-color: rgba(255,255,255,0.12);
    transform: translateY(-2px);
    box-shadow: var(--shadow-card);
}

.card-title {
    font-size: var(--font-md);
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-main);
}

.card-subtitle {
    font-size: var(--font-sm);
    color: var(--text-muted);
    line-height: 1.4;
}

.card-highlight {
    font-size: var(--font-xl);
    font-weight: 700;
    color: var(--primary-color);
    margin-top: 14px;
}

.card-icon-bg {
    position: absolute;
    right: -8px;
    bottom: -12px;
    font-size: clamp(60px, 10vw, 80px);
    opacity: 0.08;
    color: var(--primary-color);
    pointer-events: none;
}

/* ── Market Section ── */
.market-section {
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--card-border);
    overflow: hidden;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-card);
}

/* ── Tabs ── */
.tabs {
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--border-color);
    overflow-x: auto;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
    padding: 0 clamp(16px, 3vw, 24px);
}

.tabs::-webkit-scrollbar { display: none; }

.tab {
    padding: 16px clamp(12px, 2vw, 20px);
    font-size: var(--font-sm);
    font-weight: 600;
    color: var(--text-muted);
    position: relative;
    white-space: nowrap;
    background: none;
    border: none;
    transition: color 0.2s;
}

.tab:hover { color: var(--text-main); }

.tab.active { color: var(--primary-color); }

.tab.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--primary-color);
    border-radius: 2px 2px 0 0;
}

/* ── Coin Table ── */
.coin-table-wrapper {
    padding: 0;
}

.coin-table-wrapper table {
    width: 100%;
    border-collapse: collapse;
}

/* Mobile Card Layout */
.coin-table-wrapper thead { display: none; }

.coin-table-wrapper tr {
    display: flex;
    flex-direction: column;
    border-bottom: 1px solid var(--border-color);
    padding: 14px clamp(16px, 3vw, 24px);
    gap: 10px;
    transition: background 0.2s;
    cursor: pointer;
}

.coin-table-wrapper tr:hover { background: rgba(255,255,255,0.03); }
.coin-table-wrapper tr:last-child { border-bottom: none; }

.coin-table-wrapper td {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: none;
    padding: 0;
}

.coin-table-wrapper td::before {
    content: attr(data-label);
    font-weight: 600;
    font-size: var(--font-xs);
    color: var(--text-dim);
    display: block;
    min-width: 80px;
}

/* Coin info */
.coin-icon {
    width: clamp(30px, 4vw, 36px);
    height: clamp(30px, 4vw, 36px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0B0E11;
    font-size: var(--font-xs);
    font-weight: 800;
    flex-shrink: 0;
}

.coin-info {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
    justify-content: flex-end;
}

.coin-name {
    font-weight: 600;
    font-size: var(--font-sm);
    color: var(--text-main);
}

.coin-pair {
    font-size: var(--font-xs);
    color: var(--text-muted);
    margin-left: 4px;
}

.price {
    font-weight: 600;
    font-size: var(--font-sm);
    color: var(--text-main);
}

/* Change badges */
.change-btn {
    padding: 5px 12px;
    border-radius: var(--border-radius-xs);
    font-weight: 700;
    font-size: var(--font-xs);
    min-width: 72px;
    text-align: center;
    letter-spacing: 0.2px;
}

.change-btn.positive {
    background: var(--positive-bg);
    color: var(--positive-color);
}

.change-btn.negative {
    background: var(--negative-bg);
    color: var(--negative-color);
}

/* ── Mobile Nav ── */
.mobile-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: rgba(19, 23, 30, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-around;
    padding: 8px 0;
    z-index: 1000;
    box-shadow: 0 -4px 24px rgba(0,0,0,0.4);
    padding-bottom: env(safe-area-inset-bottom, 8px);
}

.nav-item {
    flex-direction: column;
    gap: 4px;
    color: var(--text-dim);
    font-size: var(--font-xs);
    font-weight: 500;
    width: 25%;
    transition: color 0.2s;
}

.nav-item.active { color: var(--primary-color); }
.nav-item i { font-size: var(--font-lg); }

/* ── Sidebar Menu ── */
.mobile-menu-overlay {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100vh;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(4px);
    z-index: 2000;
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.mobile-menu-overlay.active { display: block; opacity: 1; }

.mobile-menu-panel {
    position: fixed;
    top: 0; right: -100%;
    width: clamp(260px, 80%, 380px);
    height: 100vh;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    z-index: 2001;
    transition: right 0.3s ease;
    padding: 28px 24px;
    display: flex;
    flex-direction: column;
    gap: 24px;
    overflow-y: auto;
}

.mobile-menu-panel.active { right: 0; }

.mobile-menu-close {
    align-self: flex-end;
    font-size: var(--font-xl);
    background: none;
    border: none;
    color: var(--text-muted);
    transition: color 0.2s;
}

.mobile-menu-close:hover { color: var(--text-main); }

/* ── Admin Login ── */
.admin-login {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-color);
    padding: clamp(16px, 3vw, 24px);
}

.admin-card {
    background: var(--card-bg);
    padding: clamp(28px, 5vw, 44px);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--card-border);
    box-shadow: var(--shadow-card);
    width: 100%;
    max-width: 420px;
    margin: auto;
    backdrop-filter: blur(20px);
}

/* ── Forms ── */
.form-group {
    margin-bottom: clamp(14px, 2.5vw, 18px);
}

.form-group label {
    display: block;
    margin-bottom: 7px;
    font-weight: 500;
    font-size: var(--font-sm);
    color: var(--text-muted);
}

.form-control {
    width: 100%;
    min-height: 44px;
    padding: 10px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-sm);
    font-family: inherit;
    outline: none;
    transition: all 0.2s;
    background: var(--bg-tertiary);
    color: var(--text-main);
}

.form-control::placeholder { color: var(--text-dim); }

.form-control:focus {
    border-color: var(--primary-color);
    background: var(--bg-secondary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

select.form-control { cursor: pointer; }

/* ── Primary Button ── */
.btn-primary {
    width: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: #0B0E11;
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: var(--font-md);
    font-weight: 700;
    transition: all 0.2s;
    letter-spacing: 0.2px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--primary-glow);
}

/* ── Alerts ── */
.alert {
    padding: clamp(12px, 2vw, 16px);
    border-radius: var(--border-radius-sm);
    margin-bottom: 20px;
    font-size: var(--font-sm);
    width: 100%;
    font-weight: 500;
    border: 1px solid;
}

.alert-error {
    background: var(--negative-bg);
    color: var(--negative-color);
    border-color: rgba(246, 70, 93, 0.2);
}

.alert-success {
    background: var(--positive-bg);
    color: var(--positive-color);
    border-color: rgba(14, 203, 129, 0.2);
}

/* ── Admin Grid ── */
.form-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: clamp(12px, 2vw, 16px);
}

.admin-actions-cell {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

/* ── Lang Modal ── */
#lang-modal {
    background: rgba(0,0,0,0.8);
    backdrop-filter: blur(8px);
}

#lang-modal > div {
    background: var(--bg-secondary) !important;
    border: 1px solid var(--border-color) !important;
    box-shadow: var(--shadow-modal) !important;
}

/* ── Ticker Bar (Price animation) ── */
@keyframes priceUp {
    0% { color: var(--positive-color); }
    100% { color: var(--text-main); }
}

@keyframes priceDown {
    0% { color: var(--negative-color); }
    100% { color: var(--text-main); }
}

.price-flash-up { animation: priceUp 0.8s ease forwards; }
.price-flash-down { animation: priceDown 0.8s ease forwards; }

/* ── Responsive ── */
@media (min-width: 480px) {
    .shortcuts { grid-template-columns: repeat(auto-fit, minmax(80px, 1fr)); }
}

@media (min-width: 768px) {
    .hamburger-btn { display: none; }
    .search-bar { display: block; }
    .topbar-actions { display: flex; }
    .mobile-nav { display: none; }

    .dashboard-content { padding-bottom: clamp(40px, 5vw, 60px); }

    .cards-grid { grid-template-columns: 2fr 1fr 1fr; }

    .form-grid { grid-template-columns: repeat(2, 1fr); }

    .coin-table-wrapper thead { display: table-header-group; }

    .coin-table-wrapper tr {
        display: table-row;
        border: none;
        margin-bottom: 0;
        padding: 0;
        gap: 0;
    }

    .coin-table-wrapper td,
    .coin-table-wrapper th {
        display: table-cell;
        padding: clamp(12px, 1.5vw, 16px) clamp(16px, 2.5vw, 24px);
        border-bottom: 1px solid var(--border-color);
        text-align: left;
        vertical-align: middle;
    }

    .coin-table-wrapper th {
        font-size: var(--font-xs);
        font-weight: 600;
        color: var(--text-dim);
        text-transform: uppercase;
        letter-spacing: 0.5px;
        background: transparent;
    }

    .coin-table-wrapper td::before { display: none; }

    .coin-info { justify-content: flex-start; }

    .admin-actions-cell { justify-content: flex-start; }
}

@media (min-width: 1024px) {
    .cards-grid { grid-template-columns: repeat(3, 1fr); }
    .search-bar { max-width: 500px; }
}

@media (min-width: 1280px) {
    .cards-grid { grid-template-columns: 2fr 1fr 1fr; }
}

@media (min-width: 1600px) {
    .container { max-width: 1440px; }
    .cards-grid { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
}

/* ── Painel / Saque / Depósito areas ── */
.card-header-inline {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

/* Scrollbar Global */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-color); }
::-webkit-scrollbar-thumb { background: var(--bg-tertiary); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-dim); }