:root {
    --primary: #2563eb; 
    --primary-hover: #1d4ed8;
    --bg: #f1f5f9;
    --card-bg: #ffffff;
    --text: #0f172a;
    --text-light: #64748b;
    --border: #e2e8f0;
    --success: #16a34a; 
    --danger: #dc2626; 
    --warning: #ca8a04; 
    --input-bg: #ffffff;
    --shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
    --excel-color: #16a34a; 
}

[data-theme="dark"] {
    --primary: #3b82f6;
    --bg: #0f172a;
    --card-bg: #1e293b;
    --text: #f8fafc;
    --text-light: #94a3b8;
    --border: #334155;
    --input-bg: #0f172a;
    --shadow: 0 4px 15px rgba(0,0,0,0.3);
    
    color-scheme: dark; 
}

* { box-sizing: border-box; margin: 0; padding: 0; font-family: 'Inter', sans-serif; transition: background-color 0.3s, color 0.3s; }
body { background-color: var(--bg); color: var(--text); padding-bottom: 100px; }

header {
    background-color: var(--card-bg);
    position: sticky; 
    top: 0; 
    z-index: 1000;
    border-bottom: 1px solid var(--border);
    padding: 15px 12px; 
    box-shadow: var(--shadow);
}
.header-content {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px; 
}

.ust-satir {
    display: flex;
    justify-content: space-between;
    align-items: center;
}


.alt-satir {
    display: flex; 
    gap: 10px; 
    align-items: stretch; 
}

.baslik-ust {
    display: flex;
    justify-content: space-between; 
    align-items: center;
    width: 100%;
}
.logo-alani { display: flex; align-items: center; gap: 10px; color: var(--primary); }
.logo-alani h1 { font-size: 1.3rem; font-weight: 700; }
.logo-alani i { font-size: 1.2rem; }

.sag-butonlar { display: flex; gap: 8px; }

.theme-btn {
    background: var(--bg); border: 1px solid var(--border); color: var(--text);
    width: 40px; height: 40px; border-radius: 8px; cursor: pointer;
    display: flex; align-items: center; justify-content: center; font-size: 1.1rem;
}
.theme-btn:hover { color: var(--primary); border-color: var(--primary); }

.excel-btn-mini {
    background: var(--excel-color); border: none; color: white;
    width: 40px; height: 40px; border-radius: 8px; cursor: pointer;
    display: flex; align-items: center; justify-content: center; font-size: 1.2rem;
    box-shadow: 0 2px 5px rgba(22, 163, 74, 0.3);
}
.excel-btn-mini:hover { background: #15803d; }

.maliyet-badge {
    flex: 4; 
    background-color: rgba(37, 99, 235, 0.1); 
    color: var(--primary);
    padding: 8px 12px;
    border-radius: 10px;
    
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border: 1px solid rgba(37, 99, 235, 0.2);
}

.para-ikon { font-size: 1.2rem; }
.para-detay { display: flex; flex-direction: column; line-height: 1.1; }
.para-detay span { font-size: 0.7rem; opacity: 0.8; }
.para-detay strong { font-size: 1rem; }

.ekle-btn-mini {
    background: var(--primary); 
    border: none; 
    color: white;
    width: 40px; 
    height: 40px; 
    border-radius: 8px; 
    cursor: pointer;
    display: flex; 
    align-items: center; 
    justify-content: center; 
    font-size: 1.2rem;
    box-shadow: 0 2px 5px rgba(37, 99, 235, 0.3);
}
.ekle-btn-mini:hover { 
    background: var(--primary-hover); 
    transform: translateY(-2px);
}

.tarih-kontrol {
    flex: 6; 
    display: flex; 
    align-items: center; 
    justify-content: space-between;
    background: var(--bg); 
    padding: 5px; 
    border-radius: 10px; 
    border: 1px solid var(--border);
    position: relative;
}
.tarih-alani { 
    flex-grow: 1; 
    text-align: center;
    font-weight: 600; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    gap: 8px; 
    color: var(--text);
    cursor: pointer; 
    user-select: none; 
}
#tarih-secici {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 0; 
    height: 0;
    opacity: 0; 
    border: none;
    padding: 0;
    margin: 0;
    z-index: -1; 
}
.tarih-btn { 
    background: none; 
    border: none; 
    color: var(--text-light); 
    width: 35px; 
    height: 35px; 
    border-radius: 8px; 
    cursor: pointer; 
    z-index: 20; 
    display: flex;
    align-items: center;
    justify-content: center;
}
.tarih-btn:hover { background: var(--card-bg); color: var(--primary); }

.container { max-width: 600px; margin: 20px auto; padding: 0 15px; }

.isci-kart {
    background: var(--card-bg); border: 1px solid var(--border);
    border-radius: 12px; padding: 15px; margin-bottom: 15px;
    box-shadow: var(--shadow);
}

.kart-ust { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.sol { display: flex; gap: 12px; align-items: center; }
.avatar {
    width: 42px; height: 42px; background: var(--primary);
    color: white; border-radius: 10px; display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 1.1rem;
}
.bilgi h3 { font-size: 1rem; color: var(--text); margin-bottom: 2px; }
.bilgi p { font-size: 0.85rem; color: var(--text-light); }

.ayarlar button { background: none; border: none; color: var(--text-light); cursor: pointer; padding: 5px; font-size: 1.1rem; }
.ayarlar button:hover { color: var(--primary); }

.aksiyonlar { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; margin-bottom: 12px; }
.btn-durum {
    padding: 10px 0; border: 1px solid var(--border); border-radius: 8px;
    background: var(--bg); color: var(--text-light); font-size: 0.9rem; cursor: pointer; font-weight: 500;
}
.btn-durum:hover { background: var(--border); }

.var.aktif { background: var(--success); color: white; border-color: var(--success); }
.yarim.aktif { background: var(--warning); color: white; border-color: var(--warning); }
.izinli.aktif { background: #8b5cf6; color: white; border-color: #8b5cf6; }
.yok.aktif { background: var(--danger); color: white; border-color: var(--danger); }


.kart-alt {
    display: flex; justify-content: space-between; align-items: center;
    border-top: 1px solid var(--border); padding-top: 10px;
}
.bakiye-bilgi { font-weight: 600; font-size: 0.9rem; }
.text-yesil { color: var(--success); }
.text-kirmizi { color: var(--danger); }
.text-gri { color: var(--text-light); }
.text-turuncu { color: var(--warning); }

.btn-hesap {
    background: transparent; border: 1px solid var(--primary); color: var(--primary);
    padding: 6px 12px; border-radius: 6px; font-weight: 600; font-size: 0.85rem; cursor: pointer;
}
.btn-hesap:hover { background: var(--primary); color: white; }




.modal-dis { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); z-index: 2000; align-items: center; justify-content: center; backdrop-filter: blur(2px); }
.modal-ic { background: var(--card-bg); padding: 20px; border-radius: 16px; width: 90%; max-width: 380px; box-shadow: 0 10px 25px rgba(0,0,0,0.2); }
.modal-ic.center { text-align: center; }

.modal-baslik { display: flex; justify-content: space-between; align-items: center; margin-bottom: 15px; color: var(--text); }
.kapat-btn { background: none; border: none; font-size: 1.2rem; cursor: pointer; color: var(--text-light); }

input, textarea {
    width: 100%; padding: 12px; margin-bottom: 10px;
    border: 1px solid var(--border); border-radius: 8px;
    background: var(--input-bg); color: var(--text); font-size: 1rem; outline: none;
}
input:focus, textarea:focus { border-color: var(--primary); }

.hesap-ozeti { display: flex; gap: 10px; margin-bottom: 10px; }
.ozet-kutu { flex: 1; background: var(--bg); padding: 10px; border-radius: 8px; text-align: center; border: 1px solid var(--border); }
.ozet-kutu span { font-size: 0.75rem; display: block; color: var(--text-light); }
.ozet-kutu strong { font-size: 1.1rem; }

.bakiye-sonuc-kutusu {
    background: var(--bg); border: 1px solid var(--border);
    padding: 15px; border-radius: 8px; text-align: center; margin-bottom: 15px;
}
.bakiye-sonuc-kutusu span { display: block; font-size: 0.8rem; color: var(--text-light); margin-bottom: 5px; }
.bakiye-sonuc-kutusu strong { font-size: 1.2rem; display: block; }

.btn-full { width: 100%; padding: 12px; border: none; border-radius: 8px; color: white; font-weight: 600; cursor: pointer; margin-top: 5px; font-size: 1rem; }
.btn-primary { background: var(--primary); }
.btn-secondary { background: var(--text-light); }
.btn-danger { background: var(--danger); }
.btn-success { background: var(--success); border: none; border-radius: 8px; color: white; padding: 0 20px; font-weight: 600; cursor: pointer; }
.btn-excel { background: var(--excel-color); }
.btn-group { display: flex; gap: 10px; }
.mb-10 { margin-bottom: 10px; }
.input-group { display: flex; gap: 10px; }

#toast {
    display: none; position: fixed; bottom: 90px; left: 50%; transform: translateX(-50%);
    background: #333; color: white; padding: 10px 20px; border-radius: 20px;
    z-index: 3000; font-size: 0.9rem; box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}
input[type="date"]::-webkit-inner-spin-button,
input[type="date"]::-webkit-calendar-picker-indicator {
    display: none;
    -webkit-appearance: none;
}

.excel-buton-grubu {
    display: flex;
    flex-direction: column;
    gap: 12px; 
    margin-top: 10px;
}


.excel-btn-standard {
    width: 100%;
    height: 50px; 
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    color: white;
    cursor: pointer;
    
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px; 
    
    transition: transform 0.2s, opacity 0.2s;
}

.excel-btn-standard:active {
    transform: scale(0.98); 
}


.yesil-btn {
    background-color: #16a34a; 
}

.yesil-koyu-btn {
    background-color: #15803d; 
}

.mavi-btn {
    background-color: #3b82f6; 
}
.mavi-btn:hover {
    background-color: #2563eb; 
}

.gri-btn {
    background-color: var(--bg);
    color: var(--text-light);
    border: 1px solid var(--border);
}
.gri-btn:hover {
    background-color: var(--border);
    color: var(--text);
}


.excel-btn-standard, 
.btn-primary,        
.btn-success,        
.btn-secondary,     
.ekle-btn-mini       
{
    transition: all 0.2s cubic-bezier(0.25, 0.8, 0.25, 1); 
}

.excel-btn-standard:hover,
.btn-primary:hover,
.btn-success:hover,
.btn-secondary:hover,
.ekle-btn-mini:hover 
{
    transform: translateY(-3px); 
    filter: brightness(110%);    
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2); 
}


.excel-btn-standard:active,
.btn-primary:active,
.btn-success:active,
.btn-secondary:active,
.ekle-btn-mini:active
{
    transform: scale(0.98) translateY(0);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1); 
    filter: brightness(100%);
}