@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
    --renk-ana: #6d5ef8;
    --renk-ana-koyu: #4f3fe0;
    --renk-ana-parlak: #8b7cff;
    --renk-aksesuar: #17b26a;
    --renk-yedek: #2f8fef;
    --renk-tehlike: #e5484d;

    --bg: #f4f5f9;
    --panel-bg: #ffffff;
    --metin: #16181d;
    --metin-soft: #6b7280;
    --metin-hafif: #9aa1ac;
    --border: #e6e8ee;
    --border-soft: #f0f1f5;

    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 8px;

    --golge-sm: 0 1px 2px rgba(16, 24, 40, .04);
    --golge-md: 0 4px 16px rgba(16, 24, 40, .06);
    --golge-lg: 0 12px 32px rgba(16, 24, 40, .10);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Arial, sans-serif;
    background:
        radial-gradient(720px 480px at 8% -8%, rgba(109,94,248,.16), transparent 60%),
        radial-gradient(680px 460px at 108% 8%, rgba(23,178,106,.14), transparent 55%),
        radial-gradient(620px 520px at 50% 118%, rgba(47,143,239,.13), transparent 55%),
        var(--bg);
    background-attachment: fixed;
    color: var(--metin);
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
}

/* ---------------------------------------------------- */
/* Ust bar                                               */
/* ---------------------------------------------------- */
.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient(115deg, #7a3ff2 0%, var(--renk-ana) 42%, #3f6ff2 100%);
    color: #fff;
    padding: 18px 32px;
    box-shadow: 0 6px 24px rgba(79,63,224,.25);
    position: sticky;
    top: 0;
    z-index: 50;
}

.canli-gosterge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 10.5px;
    font-weight: 700;
    letter-spacing: .04em;
    text-transform: uppercase;
    background: rgba(255,255,255,.16);
    padding: 4px 9px 4px 7px;
    border-radius: 20px;
}

.canli-nokta {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #4ee08a;
    box-shadow: 0 0 0 rgba(78,224,138,.6);
    animation: nabiz 1.8s infinite;
}

@keyframes nabiz {
    0%   { box-shadow: 0 0 0 0 rgba(78,224,138,.55); }
    70%  { box-shadow: 0 0 0 7px rgba(78,224,138,0); }
    100% { box-shadow: 0 0 0 0 rgba(78,224,138,0); }
}

.app-header h1 {
    font-size: 18px;
    margin: 0;
    font-weight: 700;
    letter-spacing: -.01em;
    display: flex;
    align-items: center;
    gap: 10px;
}

.app-logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    background: rgba(255,255,255,.18);
    border-radius: 8px;
    font-size: 14px;
}

.app-header h1 span.surum-etiket {
    font-size: 11px;
    font-weight: 600;
    opacity: .7;
    background: rgba(255,255,255,.15);
    padding: 3px 8px;
    border-radius: 20px;
}

.header-actions { display: flex; gap: 10px; }

.btn-secondary-light {
    background: rgba(255,255,255,.14);
    color: #fff;
    border: 1px solid rgba(255,255,255,.25);
    backdrop-filter: blur(4px);
}
.btn-secondary-light:hover { background: rgba(255,255,255,.24); }

/* ---------------------------------------------------- */
/* Genel duzen                                           */
/* ---------------------------------------------------- */
.app-main {
    display: grid;
    grid-template-columns: minmax(440px, 1fr) minmax(460px, 1.15fr);
    gap: 22px;
    padding: 28px 32px;
    align-items: start;
    max-width: 1440px;
    margin: 0 auto;
}

@media (max-width: 1020px) {
    .app-main { grid-template-columns: 1fr; padding: 20px; }
}

.panel {
    background: var(--panel-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--golge-sm), 0 1px 0 rgba(255,255,255,.5) inset;
    border: 1px solid var(--border);
    padding: 24px;
    position: relative;
    overflow: hidden;
}

.panel::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--renk-ana), var(--renk-aksesuar), var(--renk-yedek));
}

.panel-form { position: sticky; top: 88px; }
@media (max-width: 1020px) { .panel-form { position: static; } }

/* ---------------------------------------------------- */
/* Adim basligi                                           */
/* ---------------------------------------------------- */
.form-baslik {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
}

.form-baslik h2 {
    font-size: 14px;
    font-weight: 700;
    margin: 0;
    color: var(--metin);
}

.adim-no {
    width: 22px;
    height: 22px;
    border-radius: 7px;
    background: linear-gradient(135deg, var(--renk-ana), var(--renk-ana-koyu));
    color: #fff;
    font-size: 12px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

/* ---------------------------------------------------- */
/* Ana kategori cipleri (canli/renkli)                    */
/* ---------------------------------------------------- */
.chip-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 24px;
}

.yukleniyor-satir { color: var(--metin-hafif); font-size: 13px; padding: 10px 0; }

.kategori-chip {
    --chip-renk: #6d5ef8;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border-radius: 999px;
    border: 1.5px solid var(--border);
    background: #fff;
    cursor: pointer;
    font-family: inherit;
    transition: all .15s ease;
}

.kategori-chip:hover {
    border-color: var(--chip-renk);
    transform: translateY(-1px);
    box-shadow: var(--golge-sm);
}

.kategori-chip.aktif {
    background: var(--chip-renk);
    border-color: var(--chip-renk);
    box-shadow: var(--golge-md);
}

.kategori-chip .chip-kod {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--chip-renk);
    color: #fff;
    font-size: 11px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.kategori-chip.aktif .chip-kod {
    background: rgba(255,255,255,.25);
}

.kategori-chip .chip-ad {
    font-size: 13px;
    font-weight: 700;
    color: var(--metin);
}

.kategori-chip.aktif .chip-ad { color: #fff; }

/* ---------------------------------------------------- */
/* Dinamik basamak zinciri (kategori agacinda ilerleme)   */
/* ---------------------------------------------------- */
.basamak-zinciri {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
}

.basamak-secim {
    display: flex;
    align-items: center;
    gap: 12px;
    background: #fafbfc;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    animation: basamakGiris .15s ease;
}

@keyframes basamakGiris {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

.basamak-secim label {
    font-size: 11px;
    font-weight: 700;
    color: var(--metin-hafif);
    text-transform: uppercase;
    letter-spacing: .04em;
    white-space: nowrap;
    min-width: 62px;
}

.basamak-secim .basamak-select { flex: 1; }

/* ---------------------------------------------------- */
/* Kod basamak select stili                               */
/* ---------------------------------------------------- */
.basamak-select {
    width: 100%;
    padding: 8px 6px;
    border-radius: 6px;
    border: 1px solid var(--border);
    font-size: 13px;
    background: #fff;
    color: var(--metin);
    font-family: inherit;
}

.basamak-select:disabled { background: #f1f2f4; color: var(--metin-hafif); }
.basamak-select:focus { outline: none; border-color: var(--renk-ana); }

/* ---------------------------------------------------- */
/* Seri no gosterimi                                     */
/* ---------------------------------------------------- */
.seri-no-alani { margin-bottom: 20px; }

.seri-no-kutu {
    display: flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, #1a1530, #241c47);
    border-radius: var(--radius-md);
    padding: 16px 18px;
    box-shadow: var(--golge-md);
}

.seri-no-kutu label {
    font-size: 11px;
    font-weight: 700;
    color: rgba(255,255,255,.55);
    text-transform: uppercase;
    letter-spacing: .06em;
    margin-right: 2px;
}

#edtSeriNo {
    flex: 1;
    font-size: 25px;
    font-weight: 800;
    letter-spacing: 3px;
    border: none;
    background: transparent;
    color: #fff;
    outline: none;
    font-family: 'Inter', monospace;
}

.seri-sonek {
    font-size: 12px;
    font-weight: 700;
    color: #7fffb0;
    background: rgba(23,178,106,.18);
    padding: 5px 10px;
    border-radius: 20px;
}

/* ---------------------------------------------------- */
/* Formlar                                                */
/* ---------------------------------------------------- */
.ek-alanlar {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 12px;
    margin-bottom: 20px;
}

.form-grup label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--metin-soft);
    margin-bottom: 6px;
}

.form-grup input, .form-grup textarea, .form-grup select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: inherit;
    background: #fff;
    color: var(--metin);
    transition: border-color .15s, box-shadow .15s;
}

.form-grup input:focus, .form-grup textarea:focus, .form-grup select:focus {
    outline: none;
    border-color: var(--renk-ana);
    box-shadow: 0 0 0 3px rgba(109,94,248,.12);
}

.form-grup-genis { grid-column: span 1; }

.form-aksiyonlar {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* ---------------------------------------------------- */
/* Butonlar                                               */
/* ---------------------------------------------------- */
.btn {
    padding: 11px 20px;
    border-radius: var(--radius-sm);
    border: none;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all .15s ease;
    font-family: inherit;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
    background: linear-gradient(135deg, var(--renk-ana), var(--renk-ana-koyu));
    color: #fff;
    box-shadow: 0 4px 12px rgba(109,94,248,.35);
}
.btn-primary:hover { box-shadow: 0 6px 16px rgba(109,94,248,.45); }

.btn-secondary { background: #f1f2f6; color: var(--metin); }
.btn-secondary:hover { background: #e7e9ef; }

.btn-danger { background: linear-gradient(135deg, #ef5a5f, var(--renk-tehlike)); color: #fff; }
.btn-danger-outline {
    background: rgba(255,255,255,.08);
    border: 1px solid rgba(255,255,255,.35);
    color: #fff;
    backdrop-filter: blur(4px);
}
.btn-danger-outline:hover { background: rgba(255,255,255,.18); }

.btn-mini { background: #f1f2f6; color: var(--metin); padding: 7px 12px; font-size: 12px; }
.btn-mini:hover { background: #e7e9ef; }

.btn-link {
    background: none;
    border: none;
    color: var(--renk-ana-koyu);
    font-weight: 600;
    font-size: 12px;
    cursor: pointer;
    padding: 4px 6px;
}
.btn-link:hover { text-decoration: underline; }

/* ---------------------------------------------------- */
/* Kayit listesi                                          */
/* ---------------------------------------------------- */
.liste-baslik {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 10px;
}

.liste-baslik h2 { font-size: 16px; margin: 0; font-weight: 700; display: flex; align-items: center; gap: 8px; }

.liste-alt-baslik { font-size: 12.5px; font-weight: 600; color: var(--metin-hafif); }

.sayac-rozet {
    font-size: 11px;
    font-weight: 800;
    color: #fff;
    background: linear-gradient(135deg, var(--renk-ana), var(--renk-ana-koyu));
    padding: 2px 8px;
    border-radius: 20px;
    min-width: 18px;
    text-align: center;
}

.liste-araclar { display: flex; gap: 8px; }
.liste-araclar input {
    padding: 9px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 13px;
    min-width: 190px;
    font-family: inherit;
}
.liste-araclar input:focus { outline: none; border-color: var(--renk-ana); }

.tablo-govde { max-height: 640px; overflow-y: auto; border-radius: var(--radius-sm); border: 1px solid var(--border-soft); }

.kayit-tablo {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.kayit-tablo th {
    text-align: left;
    padding: 10px 12px;
    background: #f8f9fb;
    color: var(--metin-soft);
    font-weight: 700;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .04em;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1;
}

.kayit-tablo td {
    padding: 11px 12px;
    border-bottom: 1px solid var(--border-soft);
}

.kayit-tablo tbody tr { cursor: pointer; transition: background .1s; }
.kayit-tablo tbody tr:hover { background: #f8f7ff; }

.serino-etiket {
    font-family: 'Inter', monospace;
    font-weight: 700;
    letter-spacing: .5px;
    color: var(--renk-ana-koyu);
    background: rgba(109,94,248,.08);
    padding: 3px 8px;
    border-radius: 6px;
    font-size: 12px;
}

.bos-satir { text-align: center; color: var(--metin-hafif); padding: 40px !important; cursor: default; }

.satir-sil {
    background: transparent;
    border: none;
    color: var(--metin-hafif);
    cursor: pointer;
    font-size: 18px;
    width: 26px;
    height: 26px;
    border-radius: 6px;
    line-height: 1;
}
.satir-sil:hover { background: rgba(229,72,77,.12); color: var(--renk-tehlike); }

/* ---------------------------------------------------- */
/* Modal                                                  */
/* ---------------------------------------------------- */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15,15,25,.55);
    backdrop-filter: blur(2px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
}

.modal {
    background: #fff;
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--golge-lg);
    animation: modalGiris .18s ease;
}

@keyframes modalGiris {
    from { opacity: 0; transform: translateY(8px) scale(.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-genis { max-width: 740px; }
.modal-dar { max-width: 400px; }

.modal-baslik {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 22px;
    border-bottom: 1px solid var(--border);
}

.modal-baslik h3 { margin: 0; font-size: 16px; font-weight: 700; }

.modal-kapat {
    background: #f1f2f6;
    border: none;
    font-size: 18px;
    width: 30px;
    height: 30px;
    border-radius: 8px;
    cursor: pointer;
    color: var(--metin-soft);
}
.modal-kapat:hover { background: #e7e9ef; }

.modal-govde { padding: 20px 22px; }
.modal-govde p { color: var(--metin-soft); font-size: 13px; line-height: 1.5; }

.detay-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.barkod-satir { display: flex; gap: 8px; }
.barkod-satir input { flex: 1; }

.modal-alt {
    padding: 16px 22px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* ---------------------------------------------------- */
/* Toast                                                  */
/* ---------------------------------------------------- */
.toast {
    position: fixed;
    bottom: 26px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: #16181d;
    color: #fff;
    padding: 13px 22px;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 500;
    opacity: 0;
    pointer-events: none;
    transition: all .2s ease;
    z-index: 2000;
    max-width: 90vw;
    white-space: pre-line;
    text-align: center;
    box-shadow: var(--golge-lg);
}

.toast.goster {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.toast.hata { background: var(--renk-tehlike); }
.toast.basari { background: var(--renk-aksesuar); }