/* --- Değişkenler ve Reset (Emerald & Gold Palette) --- */
:root {
    --sidebar-width: 280px;
    
    /* Renkler */
    --color-bg: #F8F5F2;        /* Fildişi / Krem */
    --color-sidebar: #0B3D28;   /* Derin Zümrüt Yeşili */
    --color-text: #2C3E50;      /* Koyu Arduvaz Grisi */
    --color-heading: #1A261F;   /* Çok Koyu Yeşil */
    --color-gold: #D4AF37;      /* Metalik Altın */
    --color-gold-hover: #B5952F;
    --color-emerald-light: #E8F5E9;
    --color-border: #D7CCC8;
    
    /* Fontlar */
    --font-heading: 'Playfair Display', serif; /* Prestijli, Klasik */
    --font-body: 'Roboto', sans-serif;         /* Modern, Teknik */
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: var(--font-body);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.8;
    font-weight: 300;
}

a { text-decoration: none; color: inherit; transition: 0.3s; }
img { max-width: 100%; display: block; border-radius: 4px; }
ul { list-style: none; }

/* --- Ana Düzen --- */
.layout-wrapper {
    display: flex;
    min-height: 100vh;
}

/* --- Sidebar (Emerald Green) --- */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--color-sidebar);
    color: #E0E0E0;
    position: fixed;
    height: 100vh;
    padding: 50px 30px;
    display: flex;
    flex-direction: column;
    z-index: 1000;
    overflow-y: auto;
    border-right: 4px solid var(--color-gold);
    box-shadow: 4px 0 20px rgba(0,0,0,0.3);
}

.brand {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 60px;
    color: var(--color-gold);
    letter-spacing: 2px;
    text-align: center;
    border-bottom: 1px solid rgba(212, 175, 55, 0.3);
    padding-bottom: 20px;
}
.coin-icon { font-size: 1.5rem; margin-left: 5px; }

.nav-menu li { margin-bottom: 20px; text-align: center; }
.nav-menu a {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    color: #A3BCA9;
    display: block;
    padding: 10px 0;
    border-bottom: 1px solid transparent;
    transition: all 0.3s ease;
}
.nav-menu a:hover, .nav-menu a.active {
    color: var(--color-gold);
    border-bottom: 1px solid var(--color-gold);
}

.sidebar-footer {
    margin-top: auto;
    font-size: 0.9rem;
    color: #8D9E94;
    padding-top: 30px;
    border-top: 1px solid rgba(212, 175, 55, 0.3);
    text-align: center;
}
.email-link { display: block; margin-top: 5px; color: #FFF; font-weight: 500; font-size: 0.85rem; }

/* Ticker Box */
.ticker-box { 
    margin-top: 15px; 
    background: rgba(0,0,0,0.3); 
    padding: 10px; 
    border-radius: 4px; 
    font-family: 'Roboto', monospace;
    font-size: 0.8rem;
    color: var(--color-gold);
}
.ticker-box span { display: block; margin-bottom: 5px; }

/* --- Sağ Ana İçerik --- */
.main-content {
    margin-left: var(--sidebar-width);
    width: calc(100% - var(--sidebar-width));
    display: flex;
    flex-direction: column;
}

/* --- Hero & Header --- */
.hero-header, .page-header {
    height: 75vh;
    background-size: cover;
    background-position: center;
    position: relative;
    border-bottom: 8px solid var(--color-sidebar);
}
.page-header.compact { height: 45vh; }

.overlay {
    background: linear-gradient(to right, rgba(11, 61, 40, 0.9), rgba(11, 61, 40, 0.4));
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 0 60px;
    color: #fff;
}

.hero-text { 
    max-width: 800px; 
    border-left: 4px solid var(--color-gold); 
    padding-left: 30px; 
    background: rgba(0,0,0,0.4);
    padding: 40px;
    border-radius: 2px;
}

.hero-header h1, .page-header h1 {
    font-family: var(--font-heading);
    font-size: 4rem;
    margin-bottom: 20px;
    font-weight: 700;
    line-height: 1.1;
    color: #fff;
    text-shadow: 2px 2px 5px rgba(0,0,0,0.5);
}
.gold-text { color: var(--color-gold); font-style: italic; }

.subtitle {
    font-size: 1.2rem;
    font-weight: 300;
    margin-bottom: 30px;
    color: #E8F5E9;
}

/* --- İçerik Konteyneri --- */
.content-container {
    max-width: 1100px; 
    margin: 0 auto;
    padding: 80px 60px;
    width: 100%;
    background-color: #FFF;
    margin-top: -50px;
    position: relative;
    z-index: 10;
    box-shadow: 0 5px 25px rgba(0,0,0,0.05);
    border: 1px solid #E0E0E0;
}

/* --- Tipografi ve Bölümler --- */
.text-section { margin-bottom: 70px; }
h2 { 
    font-family: var(--font-heading); 
    font-size: 2.5rem; 
    margin-bottom: 25px; 
    color: var(--color-heading);
    font-weight: 600;
    border-bottom: 2px solid var(--color-gold);
    display: inline-block;
    padding-bottom: 5px;
}
h3 { font-family: var(--font-heading); font-size: 1.6rem; margin-bottom: 15px; color: var(--color-sidebar); margin-top: 15px; }
p { margin-bottom: 20px; text-align: justify; font-size: 1.05rem; }

.bg-emerald {
    background-color: var(--color-sidebar);
    color: #fff;
    padding: 60px;
    border: 2px solid var(--color-gold);
}
.bg-emerald h2 { color: var(--color-gold); }
.bg-emerald p { color: #E8F5E9; }

/* --- Grid ve Kartlar (Finance Style) --- */
.grid-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-bottom: 70px;
}

.finance-card {
    background: #FFF;
    padding: 30px;
    border: 1px solid #E0E0E0;
    text-align: center;
    transition: transform 0.3s;
    border-top: 4px solid var(--color-sidebar);
}
.finance-card:hover { transform: translateY(-5px); border-color: var(--color-gold); box-shadow: 0 10px 20px rgba(0,0,0,0.05); }

.card-icon { font-size: 3rem; margin-bottom: 15px; }

/* Split Layout */
.split-layout {
    display: flex;
    gap: 60px;
    align-items: center;
    margin-bottom: 70px;
}
.split-layout img { width: 45%; border: 1px solid var(--color-gold); padding: 5px; }
.split-layout .split-content { width: 55%; }

.gold-list li { margin-bottom: 10px; padding-left: 20px; position: relative; }
.gold-list li::before { content: '♦'; color: var(--color-gold); position: absolute; left: 0; font-size: 1.2rem; }

/* --- Formlar --- */
.contact-layout { display: grid; grid-template-columns: 1fr 2fr; gap: 50px; }
.contact-info { background: #F5F5F5; padding: 40px; border-left: 5px solid var(--color-gold); }
.contact-info h3 { color: var(--color-sidebar); border-bottom: 1px solid #ccc; padding-bottom: 10px; }
.contact-info p { color: #555; }

.form-group { margin-bottom: 25px; }
label { display: block; margin-bottom: 8px; font-weight: 500; color: var(--color-heading); font-size: 1rem; }
input, select, textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #ccc;
    background: #FFF;
    font-family: var(--font-body);
    font-size: 1rem;
    transition: 0.3s;
}
input:focus, select:focus, textarea:focus { border-color: var(--color-gold); outline: none; box-shadow: 0 0 5px rgba(212, 175, 55, 0.2); }

.btn {
    display: inline-block;
    padding: 15px 40px;
    font-family: var(--font-heading);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    transition: 0.3s;
    letter-spacing: 1px;
}
.btn-gold { background-color: var(--color-gold); color: #fff; }
.btn-gold:hover { background-color: var(--color-gold-hover); }
.btn-emerald { background-color: var(--color-sidebar); color: #fff; }
.btn-emerald:hover { background-color: #052b1b; }
.btn-outline-gold { background: transparent; border: 2px solid var(--color-gold); color: var(--color-gold); }
.btn-outline-gold:hover { background: var(--color-gold); color: #fff; }
.full-width { width: 100%; }

/* --- Yorumlar --- */
.reviews-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.review-card {
    background: #FFFEFA;
    padding: 30px;
    border: 1px solid #EFEBE9;
    box-shadow: 0 2px 10px rgba(0,0,0,0.02);
    position: relative;
}
.quote-symbol { font-size: 4rem; color: rgba(212, 175, 55, 0.2); position: absolute; top: 10px; left: 10px; font-family: serif; }
blockquote { font-style: italic; color: #555; margin-bottom: 20px; font-family: var(--font-heading); z-index: 1; position: relative; }
cite { font-weight: 700; font-size: 0.9rem; display: block; color: var(--color-sidebar); text-transform: uppercase; letter-spacing: 1px; }

/* --- Footer --- */
.page-footer {
    padding: 50px;
    text-align: center;
    border-top: 1px solid #E0E0E0;
    color: #888;
    font-size: 0.9rem;
    margin-top: auto;
    background: #FFF;
}

.gold-line { border: 0; height: 2px; background: var(--color-gold); margin: 20px 0; width: 80px; }

/* --- Mobil Menü Butonu --- */
.menu-toggle { display: none; }

/* --- Duyarlı Tasarım (Mobil) --- */
@media (max-width: 900px) {
    .sidebar {
        transform: translateX(-100%);
        width: 100%;
        transition: transform 0.4s ease;
        padding-top: 80px;
    }
    .sidebar.active { transform: translateX(0); }
    
    .main-content { margin-left: 0; width: 100%; }
    
    .menu-toggle {
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 6px;
        position: fixed;
        top: 20px;
        left: 20px;
        z-index: 1001;
        background: var(--color-sidebar);
        border: 1px solid var(--color-gold);
        width: 50px;
        height: 50px;
        cursor: pointer;
    }
    .line {
        display: block;
        width: 25px;
        height: 1px;
        background: var(--color-gold);
    }

    .hero-header h1 { font-size: 2.8rem; }
    .content-container { padding: 60px 25px; margin-top: 0; }
    .split-layout, .contact-layout { display: block; }
    .split-layout img, .split-layout .split-content { width: 100%; }
    .split-layout img { margin-bottom: 20px; }
    .grid-card { margin-bottom: 40px; }
}