/* --- TEMA DEĞİŞKENLERİ --- */
:root {
    --bg: #0d0d0d;
    --card: #1a1a1a;
    --text: #ffffff;
    --gold: #D4AF37;
    --gray: #888888;
    --up-green: #00FF00;
    --down-red: #FF3333;
    --border: #333333;
}
[data-theme="light"] {
    --bg: #F8F9FA;
    --card: #FFFFFF;
    --text: #212529;
    --gold: #B8860B;
    --gray: #6C757D;
    --border: #DEE2E6;
}

/* --- TEMEL AYARLAR --- */
body { 
    background-color: var(--bg); 
    color: var(--text); 
    font-family: 'Segoe UI', Tahoma, sans-serif; 
    margin: 0; 
    padding: 0; 
    transition: background-color 0.4s ease, color 0.4s ease; 
}

/* --- YÜKLEME EKRANI (SPLASH) --- */
#loading-screen { 
    position: fixed; top: 0; left: 0; width: 100%; height: 100%; 
    background: var(--bg); 
    display: flex; flex-direction: column; justify-content: center; align-items: center; 
    z-index: 9999; 
    transition: opacity 0.5s ease; 
}

/* --- HEADER (ÜST BAR) --- */
header { 
    display: flex; justify-content: space-between; align-items: center; 
    padding: 20px 40px; background: var(--card); border-bottom: 2px solid var(--gold); 
    box-shadow: 0 4px 20px rgba(0,0,0,0.4); transition: background-color 0.4s ease; 
}
.header-left, .header-right { flex: 1; }
.header-left { display: flex; flex-direction: column; align-items: flex-start; }
.header-right { display: flex; justify-content: flex-end; align-items: center; }

.logo-area { flex: 2; text-align: center; }
.logo-area h1 { margin: 0; font-size: 34px; letter-spacing: 4px; color: var(--gold); text-shadow: 0px 2px 4px rgba(0,0,0,0.5); }
#live-indicator { font-size: 13px; color: var(--gray); margin-top: 8px; font-weight: bold; letter-spacing: 1.5px; display: flex; align-items: center; justify-content: center; }

.pulse-dot { display: inline-block; width: 10px; height: 10px; background-color: var(--up-green); border-radius: 50%; margin-left: 8px; box-shadow: 0 0 8px var(--up-green); animation: pulse 1.5s infinite; }
@keyframes pulse { 0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 255, 0, 0.7); } 70% { transform: scale(1); box-shadow: 0 0 0 10px rgba(0, 255, 0, 0); } 100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 255, 0, 0); } }

#current-time { font-size: 28px; font-weight: bold; letter-spacing: 2px; }
#current-date { font-size: 14px; color: var(--gold); margin-top: 2px; }

.theme-switch { font-size: 24px; background: none; border: none; cursor: pointer; transition: transform 0.3s ease; color: var(--gold); }
.theme-switch:hover { transform: scale(1.1); }

/* --- İLETİŞİM AÇILIR MENÜSÜ (DROPDOWN) --- */
.dropdown { position: relative; display: inline-block; }
.dropdown-content { display: none; position: absolute; right: 10px; top: 50px; background-color: var(--card); min-width: 180px; box-shadow: 0px 10px 25px rgba(0,0,0,0.6); border-radius: 12px; border: 1px solid var(--gold); z-index: 1001; overflow: hidden; animation: fadeInDown 0.3s ease; }
.dropdown-content a { color: var(--text); padding: 15px 20px; text-decoration: none; display: flex; align-items: center; gap: 12px; font-size: 15px; font-weight: bold; border-bottom: 1px solid var(--border); transition: background 0.3s, color 0.3s; }
.dropdown-content a:last-child { border-bottom: none; }
.dropdown-content a:hover { background-color: var(--gold); color: #000; }
.dropdown-content a:hover .fa-whatsapp { color: #25D366; }
.dropdown-content a:hover .fa-instagram { color: #E1306C; }
.show-dropdown { display: block; }
@keyframes fadeInDown { from { opacity: 0; transform: translateY(-15px); } to { opacity: 1; transform: translateY(0); } }

/* --- KAYAN BANT (TICKER) --- */
.ticker-wrapper { 
    background: var(--card); 
    padding: 12px 0; 
    overflow: hidden; 
    white-space: nowrap; 
    border-bottom: 1px solid var(--border); 
}

.ticker {
    display: inline-block;
    white-space: nowrap;
    animation: marquee 120s linear infinite;
    
    /* iOS (iPhone/iPad) Donanım Hızlandırma - Kapanma/Donma Çözümü */
    -webkit-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
    will-change: transform;
}

/* Apple (iOS) Cihazlar İçin Özel Animasyon */
@-webkit-keyframes marquee {
    0% { -webkit-transform: translateX(0); }
    100% { -webkit-transform: translateX(-50%); }
}

/* Diğer Tüm Cihazlar (Android/Windows) İçin Standart Animasyon */
@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.ticker-item { 
    margin-right: 50px; 
    font-weight: bold; 
    font-size: 15px; 
}

/* --- YENİ ANA İÇERİK DÜZENİ (VİDEO SOLDA, TABLO SAĞDA) --- */
.main-content-layout {
    display: flex;
    max-width: 1400px;
    margin: 30px auto;
    padding: 0 5px; /* Sola yanaşması için azaltıldı */
    gap: 20px;
    align-items: flex-start;
    transition: all 0.5s ease;
}

/* Video Kapanınca Tablonun Ortalanması */
.main-content-layout.video-closed { justify-content: center; }
.main-content-layout.video-closed .price-container { flex: 0 1 1000px; }

/* Mini Video (Sol Panel) */
.mini-video-panel {
    flex: 0 0 300px;
    background: var(--card);
    border: 2px solid var(--gold);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    cursor: pointer;
    position: relative;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.mini-video-panel:hover { transform: translateY(-5px); box-shadow: 0 15px 40px rgba(212, 175, 55, 0.3); }

/* Video Kapatma (X) Butonu */
.close-mini-btn {
    position: absolute; top: 5px; right: 10px; color: var(--gold); font-size: 28px; 
    font-weight: bold; line-height: 1; z-index: 10; padding: 5px; transition: color 0.3s ease;
}
.close-mini-btn:hover { color: var(--down-red); }

.video-header { background: rgba(0,0,0,0.4); color: var(--gold); padding: 10px 15px; font-size: 14px; font-weight: bold; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 8px; }
[data-theme="light"] .video-header { background: rgba(212, 175, 55, 0.1); }
.video-overlay { position: absolute; top: 38px; left: 0; width: 100%; height: calc(100% - 38px); background: rgba(0,0,0,0.6); color: #fff; display: flex; flex-direction: column; justify-content: center; align-items: center; opacity: 0; transition: opacity 0.3s ease; font-size: 18px; font-weight: bold; z-index: 2; }
.mini-video-panel:hover .video-overlay { opacity: 1; }
.mini-video-panel video { width: 100%; display: block; object-fit: cover; }

/* --- TABLO DÜZENİ --- */
.price-container { max-width: 1000px; margin: 30px auto; padding: 0 20px; }
.main-content-layout .price-container { flex: 1; margin: 0; padding: 0; max-width: none; } /* Yan yanayken tam sığması için */

table { width: 100%; background: var(--card); border-radius: 15px; box-shadow: 0 10px 30px rgba(0,0,0,0.5); border-collapse: collapse; overflow: hidden; }
th { color: var(--gold); padding: 20px; text-align: left; border-bottom: 2px solid var(--border); background-color: rgba(0,0,0,0.2); }
th i { margin-right: 8px; }
td { padding: 18px 20px; border-bottom: 1px solid var(--border); font-size: 15px; cursor: pointer; vertical-align: middle; }
tr:hover { background-color: rgba(212, 175, 55, 0.05); }
[data-theme="light"] tr:hover { background-color: rgba(184, 134, 11, 0.08); }

.price-up { color: var(--up-green); }
.price-down { color: var(--down-red); }
.sparkline-svg { display: block; margin: 0 auto; filter: drop-shadow(0px 2px 2px rgba(0,0,0,0.5)); }

/* --- MODALLAR (GRAFİK, FİLTRE, BÜYÜK VİDEO) --- */
.modal { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.85); backdrop-filter: blur(5px); z-index: 1000; }
.modal-content { position: relative; background: var(--card); margin: 5% auto; padding: 30px; width: 80%; max-width: 800px; max-height: 80vh; overflow-y: auto; border-radius: 20px; border: 1px solid var(--gold); box-shadow: 0 0 30px rgba(212, 175, 55, 0.2); }
.modal-content::-webkit-scrollbar { width: 8px; } 
.modal-content::-webkit-scrollbar-track { background: var(--bg); border-radius: 10px; } 
.modal-content::-webkit-scrollbar-thumb { background: var(--gold); border-radius: 10px; }
.close-btn { position: absolute; top: 15px; right: 20px; font-size: 36px; cursor: pointer; color: var(--gray); transition: color 0.3s ease, transform 0.3s ease; line-height: 1; z-index: 10; }
.close-btn:hover { color: var(--down-red); transform: scale(1.1); }
.period-buttons { display: flex; justify-content: space-between; margin-top: 25px; }
button { background: var(--border); color: var(--text); border: none; padding: 12px 20px; border-radius: 8px; cursor: pointer; flex: 1; margin: 0 10px; font-weight: bold; transition: all 0.3s ease; }
button:hover { background: var(--gold); color: #000; }
/* --- BÜYÜK VİDEO MODALI (EKRANA TAM SIĞDIRMA VE ORTALAMA) --- */
.video-modal-content {
    max-width: 1000px !important;
    width: 95% !important;
    padding: 0 !important; /* Siyah boşlukları kaldırdık */
    background: transparent !important;
    border: none !important;
    box-shadow: 0 0 50px rgba(0,0,0,0.9);
    overflow: visible !important; /* İç kaydırma çubuklarını iptal ettik */
    
    /* EKRANIN TAM ORTASINA SABİTLEME (Aşağı kaymayı önler) */
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    margin: 0 !important;
}

/* Çarpı (X) İşaretinin Konumu */
.video-modal-content .close-video-btn {
    top: -40px;
    right: 0;
    color: #fff;
}

/* Videonun Kendisi */
#expanded-video {
    width: 100%;
    max-height: 85vh; /* VİDEO EKRANIN %85'İNİ GEÇEMEZ (Aşağı kaymayı kesin engeller) */
    object-fit: contain; /* En-boy oranını bozmadan videoyu ekrana kusursuz sığdırır */
    border-radius: 15px;
    display: block;
    margin: 0 auto;
    background: #000;
}

/* --- HESAPLAYICI WIDGET --- */
#calculator-widget { position: fixed; bottom: 20px; right: 20px; width: 300px; background: var(--card); border: 2px solid var(--gold); border-radius: 15px; box-shadow: 0 10px 30px rgba(0,0,0,0.6); z-index: 999; overflow: hidden; transition: all 0.3s ease; }
.calc-header { background: var(--gold); color: #000; padding: 15px; font-weight: bold; cursor: pointer; display: flex; justify-content: space-between; align-items: center; }
.calc-body { padding: 20px; display: none; }
#calc-input { width: 100%; padding: 10px; margin-bottom: 15px; background: var(--bg); border: 1px solid var(--border); color: var(--text); border-radius: 8px; box-sizing: border-box; font-size: 16px; }
.calc-result { background: rgba(0,0,0,0.2); padding: 15px; border-radius: 8px; }

/* --- PREMIUM FOOTER (ALT BAR) --- */
.premium-footer { background: var(--card); border-top: 2px solid var(--gold); padding: 50px 20px 20px; margin-top: 60px; transition: background-color 0.4s ease; }
.footer-content { display: flex; flex-wrap: wrap; justify-content: space-between; max-width: 1100px; margin: 0 auto; gap: 30px; }
.footer-col { flex: 1; min-width: 250px; }
.footer-col h3 { color: var(--gold); font-size: 18px; margin-bottom: 20px; border-bottom: 1px solid var(--border); padding-bottom: 10px; }
.footer-col p { color: var(--gray); font-size: 14px; line-height: 1.8; }
.footer-col a { display: block; color: var(--text); text-decoration: none; margin-bottom: 12px; font-size: 14px; transition: color 0.3s, transform 0.3s; }
.footer-col a:hover { color: var(--gold); transform: translateX(5px); }
.footer-bottom { text-align: center; color: var(--gray); font-size: 13px; margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--border); letter-spacing: 1px; }

/* --- ALT SAYFA (METİN/SÖZLEŞME) TASARIMI --- */
.page-wrapper { max-width: 900px; margin: 50px auto; padding: 0 20px; min-height: 60vh; }
.premium-content-box { background: var(--card); padding: 50px; border-radius: 15px; box-shadow: 0 10px 30px rgba(0,0,0,0.5); border: 1px solid var(--border); transition: background-color 0.4s ease; }
.premium-content-box h2 { color: var(--gold); border-bottom: 2px solid var(--border); padding-bottom: 15px; margin-top: 0; font-size: 28px; letter-spacing: 1px; }
.premium-content-box h3 { color: var(--text); margin-top: 30px; font-size: 20px; }
.premium-content-box p { color: var(--text); line-height: 1.8; font-size: 16px; margin-bottom: 15px; opacity: 0.9; }
.premium-content-box ul { color: var(--text); line-height: 1.8; margin-bottom: 20px; opacity: 0.9; }
.premium-content-box li { margin-bottom: 10px; }


/* ======================================================
   📱 MOBİL UYUM (RESPONSIVE) VE TELEFON EKRANI AYARLARI 
   ====================================================== */
@media screen and (max-width: 768px) {
    /* Videoyu Mobilde Gizle */
    .mini-video-panel { display: none !important; }
    
    /* Tablo Düzeni (Mobilde tek başına tam ekran) */
    .main-content-layout { display: block; margin: 10px auto 100px auto; padding: 0; }
    
    /* Header (Üst Bar) */
    header { flex-direction: column; padding: 15px; gap: 15px; text-align: center; }
    .header-left { align-items: center; }
    .header-right { justify-content: center; width: 100%; gap: 10px; }
    .logo-area h1 { font-size: 22px; letter-spacing: 2px; }
    #current-time { font-size: 22px; }
    #live-indicator { font-size: 11px; }
    .theme-switch { font-size: 24px; margin: 0 5px; }

    /* İletişim Menüsü */
    .dropdown-content { right: auto; left: -10px; min-width: 200px; }

    /* Tablo Kaydırma */
    .price-container { padding: 0 10px; margin: 20px auto 100px auto; overflow-x: auto; -webkit-overflow-scrolling: touch; }
    table { min-width: 650px; }
    th, td { padding: 12px 10px; font-size: 13px; }
    .ticker-item { font-size: 13px; margin-right: 30px; }

    /* Modallar (Popup) */
    .modal-content { width: 90%; margin: 20% auto; padding: 20px; }
    .close-btn { top: 10px; right: 15px; font-size: 28px; }
    .period-buttons { flex-direction: column; gap: 10px; }
    button { margin: 0; width: 100%; }

    /* Hesap Makinesi */
    #calculator-widget { width: 90%; right: 5%; bottom: 15px; }
    #filter-checkboxes label { width: 100% !important; }

    /* Footer ve Alt Sayfa (Önceki hatadan arındırıldı) */
    .footer-content { flex-direction: column; text-align: center; }
    .footer-col h3 { justify-content: center; }
    .premium-content-box { padding: 30px 20px; }
}