:root {
    --primary: #E31E24;
    --primary-dark: #8B1D20;
    --accent: #E31E24;
    --accent-hover: #8B1D20;
    --bg: #f5f5f5;
    --surface: #ffffff;
    --border: #e0e0e0;
    --text: #000000;
    --text-muted: #808285;
    --danger: #8B1D20;
    --success: #22c55e;
    --radius: 10px;
    --shadow: 0 1px 3px rgba(0,0,0,.08), 0 4px 12px rgba(0,0,0,.04);
}

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

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    min-height: 100vh;
}

/* Header */
.header {
    background: var(--surface);
    color: var(--text);
    padding: .75rem 0;
    box-shadow: 0 2px 8px rgba(0,0,0,.08);
    border-bottom: 3px solid var(--primary);
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-img {
    height: 52px;
    width: auto;
}

.logo-subtitle {
    font-size: .9rem;
    color: var(--text-muted);
    font-weight: 400;
    border-left: 2px solid var(--border);
    padding-left: 1rem;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: .5rem;
}

.header .btn-ghost {
    color: var(--text-muted);
}

.header .btn-ghost:hover {
    color: var(--primary);
    background: rgba(227, 30, 36, .06);
}

.section-desc {
    font-size: .88rem;
    color: var(--text-muted);
    margin-bottom: 1.25rem;
}

.email-listesi { display: flex; flex-direction: column; gap: .5rem; }

.email-satir {
    display: flex;
    gap: .5rem;
    align-items: center;
}

.email-satir input {
    flex: 1;
    padding: .6rem .85rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: .9rem;
    font-family: inherit;
}

.email-satir input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(227, 30, 36, .12);
}

.btn-email-sil {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.1rem;
    padding: .35rem .55rem;
    border-radius: 6px;
    line-height: 1;
}

.btn-email-sil:hover { color: var(--danger); border-color: var(--danger); background: #fef2f2; }

.telefon-grup {
    display: flex;
    align-items: stretch;
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    background: white;
}

.telefon-grup:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(227, 30, 36, .12);
}

.telefon-onek {
    display: flex;
    align-items: center;
    padding: 0 .85rem;
    background: var(--bg);
    color: var(--text);
    font-weight: 600;
    font-size: .9rem;
    border-right: 1px solid var(--border);
    white-space: nowrap;
}

.telefon-numara {
    flex: 1;
    border: none;
    padding: .6rem .85rem;
    font-size: .9rem;
    font-family: inherit;
    outline: none;
}

.musteri-ara-wrapper { position: relative; }

.arama-sonuclari {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: var(--shadow);
    max-height: 220px;
    overflow-y: auto;
    z-index: 50;
    margin-top: 4px;
}

.arama-sonuc-item {
    padding: .65rem .85rem;
    cursor: pointer;
    border-bottom: 1px solid var(--border);
}

.arama-sonuc-item:last-child { border-bottom: none; }

.arama-sonuc-item:hover { background: rgba(227, 30, 36, .06); }

.arama-sonuc-item strong { display: block; font-size: .92rem; }
.arama-sonuc-item span { font-size: .82rem; color: var(--text-muted); }

.panel-toolbar {
    padding: 0 1.5rem 1rem;
}

.panel-toolbar input {
    width: 100%;
    max-width: 320px;
    padding: .5rem 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: .9rem;
}

.panel-toolbar input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(227, 30, 36, .15);
}

#musteriListesi .teklif-kart,
#kullaniciListesi .kullanici-kart {
    grid-template-columns: 1fr auto;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1.5rem;
}

/* Panel */
.panel {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.panel-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.panel-header h2 { font-size: 1.2rem; color: var(--primary); }

.hidden { display: none !important; }

/* Buttons */
.btn {
    padding: .55rem 1.2rem;
    border: none;
    border-radius: 8px;
    font-size: .9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all .2s;
    display: inline-flex;
    align-items: center;
    gap: .4rem;
}

.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { background: var(--accent-hover); }

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

.btn-ghost { background: transparent; color: var(--text-muted); }
.btn-ghost:hover { background: var(--bg); color: var(--text); }

.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { background: #dc2626; }

.btn-sm { padding: .35rem .8rem; font-size: .82rem; }

.form-actions-top { display: flex; gap: .5rem; flex-wrap: wrap; }

/* Arama */
.arama-kutusu input {
    padding: .5rem 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: .9rem;
    width: 260px;
}

.arama-kutusu input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(227,30,36,.15);
}

/* Teklif Listesi */
.teklif-listesi { padding: 1rem 1.5rem 1.5rem; }

.bos-mesaj {
    text-align: center;
    color: var(--text-muted);
    padding: 3rem 1rem;
}

.teklif-kart {
    display: grid;
    grid-template-columns: 1fr auto auto auto;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-bottom: .75rem;
    transition: border-color .2s, box-shadow .2s;
    cursor: pointer;
}

.teklif-kart:hover {
    border-color: var(--accent);
    box-shadow: 0 2px 8px rgba(227,30,36,.12);
}

.teklif-kart-info h4 { font-size: 1rem; margin-bottom: .2rem; }
.teklif-kart-info p { font-size: .85rem; color: var(--text-muted); }

.teklif-kart-tutar {
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--primary);
    text-align: right;
    white-space: nowrap;
}

.durum-badge {
    padding: .25rem .7rem;
    border-radius: 20px;
    font-size: .78rem;
    font-weight: 500;
    text-transform: capitalize;
}

.durum-taslak { background: #fef3c7; color: #92400e; }
.durum-gonderildi { background: #fde8e8; color: #8B1D20; }
.durum-onaylandi { background: #dcfce7; color: #166534; }
.durum-teslim_edildi { background: #e0e7ff; color: #3730a3; }

.liste-filtreler {
    display: flex;
    gap: .5rem;
    flex-wrap: wrap;
    align-items: center;
}

.liste-filtreler select {
    padding: .5rem .75rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: .9rem;
    background: white;
}

.section-header-actions { display: flex; gap: .4rem; flex-wrap: wrap; }

.kalem-urun-grup {
    display: flex;
    gap: .25rem;
    align-items: center;
}

.kalem-urun-grup .kalem-urun { flex: 1; }

.btn-urun-sec {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: .3rem .45rem;
    cursor: pointer;
    color: var(--text-muted);
    font-size: .9rem;
}

.btn-urun-sec:hover { color: var(--primary); border-color: var(--primary); }

.kullanici-badge {
    font-size: .82rem;
    color: var(--text-muted);
    padding: .35rem .6rem;
    background: var(--bg);
    border-radius: 6px;
}

.modal-genis { max-width: 640px; width: 95%; }

.modal-ara {
    width: 100%;
    padding: .6rem .85rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-bottom: 1rem;
    font-size: .9rem;
}

.urun-sec-liste {
    max-height: 300px;
    overflow-y: auto;
    border: 1px solid var(--border);
    border-radius: 8px;
}

.urun-sec-item {
    padding: .7rem .85rem;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
}

.urun-sec-item:hover { background: rgba(227, 30, 36, .06); }
.urun-sec-item strong { display: block; }
.urun-sec-item span { font-size: .82rem; color: var(--text-muted); }

.gecmis-tablo {
    width: 100%;
    border-collapse: collapse;
    font-size: .88rem;
    margin-bottom: 1rem;
}

.gecmis-tablo th {
    background: var(--primary);
    color: white;
    padding: .5rem .6rem;
    text-align: left;
}

.gecmis-tablo td {
    padding: .5rem .6rem;
    border-bottom: 1px solid var(--border);
}

#urunListesi .urun-kart { grid-template-columns: 1fr auto auto; }

.login-body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg);
}

.login-card {
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.login-logo { height: 64px; margin-bottom: 1rem; }
.login-card h1 { font-size: 1.3rem; color: var(--text); margin-bottom: .25rem; }
.login-subtitle { color: var(--text-muted); margin-bottom: 1.5rem; font-size: .9rem; }
.login-card .form-group { text-align: left; }
.btn-block { width: 100%; justify-content: center; margin-top: .5rem; }
.login-hata { color: var(--danger); font-size: .85rem; margin-top: 1rem; }

.kart-actions { display: flex; gap: .4rem; }

.kart-actions button {
    padding: .3rem .6rem;
    font-size: .78rem;
    border: 1px solid var(--border);
    background: white;
    border-radius: 6px;
    cursor: pointer;
    color: var(--text-muted);
}

.kart-actions button:hover { background: var(--bg); color: var(--text); }
.kart-actions .btn-sil:hover { color: var(--danger); border-color: var(--danger); }

/* Form */
.form-section {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border);
}

.section-title {
    font-size: 1rem;
    color: var(--primary);
    margin-bottom: 1rem;
    font-weight: 600;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.section-header .section-title { margin-bottom: 0; }

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.span-2 { grid-column: span 2; }

.form-group label {
    display: block;
    font-size: .85rem;
    font-weight: 500;
    margin-bottom: .35rem;
    color: var(--text-muted);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: .6rem .85rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: .9rem;
    font-family: inherit;
    transition: border-color .2s, box-shadow .2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(227,30,36,.12);
}

.form-group input[readonly] {
    background: var(--bg);
    color: var(--text-muted);
}

/* Kalem Tablosu */
.kalem-tablo-wrapper { overflow-x: auto; }

.kalem-tablo {
    width: 100%;
    border-collapse: collapse;
    font-size: .88rem;
}

.kalem-tablo th {
    background: var(--primary);
    color: white;
    padding: .65rem .75rem;
    text-align: left;
    font-weight: 500;
    font-size: .82rem;
}

.kalem-tablo th:first-child { border-radius: 8px 0 0 0; }
.kalem-tablo th:last-child { border-radius: 0 8px 0 0; }

.kalem-tablo td {
    padding: .5rem .4rem;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

.kalem-tablo input {
    width: 100%;
    padding: .45rem .6rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: .85rem;
    font-family: inherit;
}

.kalem-tablo input:focus {
    outline: none;
    border-color: var(--accent);
}

.col-adet { width: 80px; }
.col-kdv { width: 70px; }
.col-fiyat { width: 130px; }
.col-tutar { width: 140px; }
.col-islem { width: 40px; text-align: center; }

.kalem-tablo th.col-adet,
.kalem-tablo th.col-kdv,
.kalem-tablo th.col-fiyat,
.kalem-tablo th.col-tutar,
.kalem-tablo td.col-adet,
.kalem-tablo td.col-kdv,
.kalem-tablo td.col-fiyat,
.kalem-tablo td.col-tutar,
.kalem-tutar {
    text-align: right;
}

.kalem-tablo input.kalem-adet,
.kalem-tablo input.kalem-kdv,
.kalem-tablo input.kalem-fiyat,
.kalem-tutar,
.toplam-deger {
    font-variant-numeric: tabular-nums;
    font-feature-settings: "tnum";
}

.kalem-tutar {
    font-weight: 600;
    padding-right: .75rem;
    white-space: nowrap;
}

.btn-kalem-sil {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.1rem;
    padding: .2rem;
    border-radius: 4px;
}

.btn-kalem-sil:hover { color: var(--danger); background: #fef2f2; }

/* Toplamlar */
.toplamlar-section {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: .75rem;
}

.fiyat-gizle-label {
    display: flex;
    align-items: center;
    gap: .5rem;
    font-size: .9rem;
    color: var(--text-muted);
    cursor: pointer;
    align-self: stretch;
    justify-content: flex-end;
}

.toplamlar {
    width: 360px;
    padding: .5rem 0;
}

.toplam-satir {
    display: grid;
    grid-template-columns: 1fr 160px;
    align-items: center;
    gap: 1rem;
    padding: .45rem 0;
    font-size: .92rem;
}

.toplam-deger {
    text-align: right;
    white-space: nowrap;
}

.toplam-satir.genel-toplam {
    border-top: 2px solid var(--primary);
    margin-top: .5rem;
    padding-top: .65rem;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--primary);
}

.kdv-input {
    width: 50px !important;
    padding: .15rem .3rem !important;
    text-align: center;
    border: 1px solid var(--border) !important;
    border-radius: 4px !important;
    font-size: .85rem !important;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    padding: .85rem 1.5rem;
    border-radius: 8px;
    color: white;
    font-size: .9rem;
    font-weight: 500;
    box-shadow: 0 4px 16px rgba(0,0,0,.15);
    z-index: 1000;
    transition: opacity .3s, transform .3s;
}

.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }

/* Modal */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.4);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    background: white;
    padding: 2rem;
    border-radius: var(--radius);
    max-width: 420px;
    width: 90%;
    box-shadow: 0 8px 32px rgba(0,0,0,.2);
}

.modal-content h3 { margin-bottom: .75rem; color: var(--primary); }
.modal-content p { color: var(--text-muted); margin-bottom: 1.5rem; }

.modal-actions { display: flex; gap: .5rem; justify-content: flex-end; }

/* Responsive */
@media (max-width: 768px) {
    .form-grid { grid-template-columns: 1fr; }
    .span-2 { grid-column: span 1; }
    .teklif-kart { grid-template-columns: 1fr; }
    .header-inner { flex-direction: column; gap: 1rem; text-align: center; }
    .header-actions { justify-content: center; flex-wrap: wrap; }
    .logo { flex-direction: column; text-align: center; }
    .logo-subtitle { border-left: none; padding-left: 0; }
    .form-actions-top { width: 100%; justify-content: center; }
    .toplamlar { width: 100%; }
}