/* ============================================================
   🎨 DEĞİŞKENLER VE TEMA
   ============================================================ */
:root {
    --bg-color: #f8f9fd;
    --card-bg: #ffffff;
    --text-main: #2d3436;
    --text-dim: #636e72;
    --primary: #6c5ce7;
    --primary-light: rgba(108, 92, 231, 0.1);
    --secondary: #00b894;
    --border-color: #edf2f7;
    --input-bg: #ffffff;
    --danger: #ff7675;
    --shadow: 0 10px 30px rgba(0,0,0,0.05);
    --radius-full: 50px;
    --radius-card: 25px;
    --transition: all 0.3s ease;
}

[data-theme="dark"] {
    --bg-color: #0f172a; 
    --card-bg: #1e293b; 
    --text-main: #f1f5f9; 
    --text-dim: #94a3b8;
    --border-color: #334155; 
    --input-bg: #0f172a; 
    --shadow: 0 10px 30px rgba(0,0,0,0.2);
}

/* ============================================================
   🏗️ ANA YAPI (TÜM SAYFALAR İÇİN)
   ============================================================ */
* { 
    box-sizing: border-box; 
    font-family: 'Inter', sans-serif; 
}

html, body {
    width: 100% !important;
    overflow-x: hidden !important; /* Sağa kaymayı küresel olarak yasaklar */
    margin: 0;
    padding: 0;
}

body { 
    background-color: var(--bg-color); 
    color: var(--text-main); 
    transition: var(--transition); 
    display: block !important; /* Flex baskısını her sayfada kırar */
    padding: 15px !important;
}

.container { 
    width: 100%; 
    max-width: 1100px; 
    margin: 0 auto; 
}

/* ============================================================
   🧭 NAVİGASYON BAR (Masaüstü)
   ============================================================ */
.nav-bar {
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    background: var(--card-bg);
    padding: 10px 20px; 
    border-radius: var(--radius-full); 
    border: 1px solid var(--border-color); 
    margin-bottom: 30px; 
    box-shadow: var(--shadow);
    width: 100%;
}

.nav-links { 
    display: flex; 
    gap: 8px; 
}

.nav-link { 
    padding: 12px 20px; 
    border-radius: var(--radius-full); 
    text-decoration: none; 
    color: var(--text-dim); 
    font-weight: 600; 
    font-size: 0.9rem; 
    transition: var(--transition); 
    white-space: nowrap; 
}

.nav-link:hover { 
    color: var(--primary); 
    background: var(--primary-light); 
}

.nav-link.active { 
    background: var(--primary) !important; 
    color: white !important; 
}

.nav-theme-btn { 
    background: var(--bg-color); 
    border: 1px solid var(--border-color); 
    width: 45px; 
    height: 45px; 
    border-radius: 50%; 
    cursor: pointer; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    flex-shrink: 0;
}

/* ============================================================
   📱 MOBİL UYUMLULUK SİHRİ (768px ve altı)
   ============================================================ */
@media (max-width: 768px) {
    .nav-bar {
        flex-direction: column !important; /* Linkler üstte, tema butonu altta */
        border-radius: 20px !important; 
        padding: 15px !important;
        gap: 12px !important;
    }

    .nav-links {
        display: grid !important; 
        grid-template-columns: 1fr 1fr !important; /* Butonları 2 sütuna hapseder */
        width: 100% !important;
        gap: 8px !important;
    }

    .nav-link {
        width: 100% !important;
        justify-content: center !important;
        padding: 12px 5px !important;
        font-size: 0.85rem !important;
        border-radius: 12px !important;
        background: var(--primary-light) !important;
        margin: 0 !important;
        white-space: nowrap;
    }

    .nav-theme-btn {
        width: 100% !important;
        border-radius: 10px !important;
        height: 40px !important;
    }

    /* Diğer Sayfa Bileşenleri Mobil Düzeltme */
    .glass-header { 
        padding: 20px !important; 
        flex-direction: column !important; 
        text-align: center; 
        gap: 15px; 
    }
    
    .grid-layout, .week-grid { 
        grid-template-columns: 1fr !important; 
    }
}

/* Çok küçük cihazlar (iPhone SE vb.) */
@media (max-width: 380px) {
    .nav-link span { display: none; } /* Yazıları gizle sadece emoji kalsın */
    .nav-link { font-size: 1.2rem !important; }
}

/* ============================================================
   ✨ DİĞER BİLEŞENLER (Kartlar, Butonlar vb.)
   ============================================================ */
.glass-header { 
    background: var(--card-bg); 
    border: 1px solid var(--border-color); 
    border-radius: var(--radius-card); 
    padding: 30px; 
    margin-bottom: 30px; 
    box-shadow: var(--shadow); 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
}

.card { 
    background: var(--card-bg); 
    border: 1px solid var(--border-color); 
    border-radius: var(--radius-card); 
    padding: 25px; 
    transition: var(--transition); 
    box-shadow: var(--shadow); 
    margin-bottom: 10px;
}

.btn { 
    padding: 12px 24px; 
    border-radius: var(--radius-full); 
    border: 1px solid var(--border-color); 
    font-weight: 700; 
    cursor: pointer; 
    transition: var(--transition); 
    display: inline-flex; 
    align-items: center; 
    gap: 8px; 
    text-decoration: none; 
    font-size: 0.9rem; 
}

.btn-primary { background: var(--primary); color: white; border: none; }

input, select, textarea { 
    width: 100%; padding: 12px 15px; border-radius: 12px; 
    border: 1px solid var(--border-color); background: var(--input-bg); 
    color: var(--text-main); margin-bottom: 10px; 
}