:root {
    /* Açık Ton Zemin ve Kart Renkleri */
    --bg-main: #f8f9fa;
    --bg-card: #ffffff;
    --bg-hover: #f1f5f9;
    --border-color: #e2e8f0;
    
    /* Metin Renkleri */
    --text-primary: #0f172a;
    --text-secondary: #334155;
    --text-muted: #64748b;
    
    /* Borsa & Finans Vurgu Renkleri */
    --accent-green: #10b981;
    --accent-red: #ef4444;
    --accent-orange: #f59e0b;
    --accent-blue: #2563eb;
}

/* Kutu Modeli & Taşma Engelleme */
*, *::before, *::after {
    box-sizing: border-box;
}

html, body {
    max-width: 100%;
    overflow-x: hidden;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

/* ==========================================================================
   AÇIK TON TOP NAVBAR (MOBİL UYUMLU)
   ========================================================================== */
.ckn-navbar {
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: 10px 16px;
    font-size: 14px;
    width: 100%;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.ckn-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    overflow-x: auto;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.ckn-nav::-webkit-scrollbar {
    display: none;
}

.ckn-nav-link {
    color: var(--text-muted);
    text-decoration: none;
    padding: 6px 14px;
    border-radius: 6px;
    transition: all 0.2s ease;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    flex-shrink: 0;
}

.ckn-nav-link:hover {
    color: var(--text-primary);
    background-color: var(--bg-hover);
}

.ckn-nav-link.active {
    color: var(--accent-blue);
    background-color: #eff6ff;
    font-weight: 600;
}

/* ==========================================================================
   AÇIK TON KART MİMARİSİ
   ========================================================================== */
.ckn-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 18px;
    margin-bottom: 16px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

@media (hover: hover) {
    .ckn-card:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.06);
    }
}

.ckn-card-title {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    font-weight: 600;
    margin-bottom: 12px;
}

/* TAB YAPISI */
.ckn-tabs {
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    white-space: nowrap;
    background-color: #f1f5f9 !important;
    border: 1px solid var(--border-color) !important;
    padding: 4px;
    border-radius: 8px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

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

.ckn-tabs .nav-item {
    flex-shrink: 0;
}

.ckn-tabs .nav-link {
    color: var(--text-muted);
    border: none;
    background: transparent;
    padding: 6px 16px;
    font-size: 13px;
    border-radius: 6px;
    white-space: nowrap;
}

.ckn-tabs .nav-link.active {
    color: var(--text-primary);
    background-color: var(--bg-card);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    font-weight: 600;
}

/* RENK VE YARDIMCI SINIFLAR */
.text-green { color: var(--accent-green) !important; }
.text-red { color: var(--accent-red) !important; }
.text-main-dark { color: var(--text-primary) !important; }

.extra-small {
    font-size: 11px;
}

.dot-indicator {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.stat-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border-radius: 8px;
}

/* YUMUŞAK AÇIK ARKA PLANLAR (SUBTLE) */
.bg-danger-subtle { background-color: #fef2f2 !important; color: var(--accent-red) !important; }
.bg-success-subtle { background-color: #ecfdf5 !important; color: var(--accent-green) !important; }
.bg-warning-subtle { background-color: #fffbeb !important; color: var(--accent-orange) !important; }
.bg-info-subtle { background-color: #eff6ff !important; color: var(--accent-blue) !important; }

/* TABLO UYUMLULUĞU (LIGHT THEME) */
.table-responsive {
    -webkit-overflow-scrolling: touch;
    margin-bottom: 0;
}

.table-custom {
    color: var(--text-primary) !important;
}

.table-custom thead {
    background-color: #f8fafc;
    color: var(--text-muted);
    font-size: 12px;
    border-bottom: 1px solid var(--border-color);
}

.table-custom td, .table-custom th {
    border-color: var(--border-color);
}

/* ==========================================================================
   BREAKPOINTS (MOBİL DÜZENLEMELERİ)
   ========================================================================== */
@media (max-width: 768px) {
    .ckn-card {
        padding: 14px;
        margin-bottom: 12px;
    }

    .bist-mini-ticker {
        font-size: 12px;
    }

    .stat-icon {
        width: 42px;
        height: 42px;
    }
}

@media (max-width: 576px) {
    .container-fluid {
        padding-left: 12px !important;
        padding-right: 12px !important;
    }

    .ckn-navbar {
        padding: 8px 12px;
    }

    .ckn-nav-link {
        padding: 5px 10px;
        font-size: 12px;
    }
}

/* Açık Tema Metin ve Kart Başlığı Düzeltmeleri */
.text-white {
    color: var(--text-primary) !important; /* Beyaz kalan tüm yazıları siyah/koyu lacivert yapar */
}

/* Sinyal Kartlarındaki Silik Metinlerin Okunurluğunu Artırma */
.ckn-card, .ckn-card span, .ckn-card p, .ckn-card h1, .ckn-card h2, .ckn-card h3, .ckn-card h4, .ckn-card h5, .ckn-card h6 {
    color: var(--text-primary);
}

.text-muted {
    color: var(--text-muted) !important;
}

/* Sinyal Kartı İç Zemin Düzenlemesi */
.bg-dark {
    background-color: #f1f5f9 !important; /* Koyu gri zeminleri açık gri yapar */
}

/* TradingView ve Kart Border Düzeltmeleri */
.border-secondary {
    border-color: var(--border-color) !important;
}