/* ============================================================
   TekstilAI — Ana Stylesheet
   ============================================================ */
:root {
  --red:      #CC1B1B;
  --red-dark: #9E0000;
  --gold:     #F5C518;
  --gold-l:   #FFD966;
  --black:    #0A0A0A;
  --white:    #FFFFFF;
  --bg:       #F5F4F1;
  --sidebar-w:220px;
  --radius:   14px;
  --shadow:   0 2px 16px rgba(0,0,0,0.08);
}
*, *::before, *::after { box-sizing:border-box; margin:0; padding:0; }
html { scroll-behavior:smooth; }
body { font-family:'DM Sans',sans-serif; color:#1a1a1a; background:var(--bg); }
h1,h2,h3,h4,h5 { font-family:'Syne',sans-serif; }
a { color:inherit; text-decoration:none; }

/* ─── AUTH PAGES ─── */
.auth-body { background:var(--black); min-height:100vh; display:flex; align-items:stretch; }
.auth-split { display:flex; width:100%; min-height:100vh; }
.auth-left {
  flex:1; background:linear-gradient(135deg,#1a0505,var(--red-dark));
  display:flex; align-items:center; justify-content:center; padding:60px 48px;
}
.auth-left-inner { max-width:420px; }
.logo { font-family:'Syne',sans-serif; font-size:1.6rem; font-weight:800; color:white; display:inline-block; margin-bottom:40px; }
.logo span { color:var(--gold); }
.auth-left h1 { font-size:2.4rem; font-weight:800; color:white; line-height:1.2; margin-bottom:16px; }
.auth-left p  { color:rgba(255,255,255,0.65); line-height:1.7; margin-bottom:32px; }
.auth-features { display:flex; flex-direction:column; gap:12px; }
.af { color:rgba(255,255,255,0.8); font-size:0.9rem; padding:10px 14px; background:rgba(255,255,255,0.08); border-radius:10px; }
.auth-right { width:480px; background:white; display:flex; align-items:center; justify-content:center; padding:60px 48px; }
.auth-form-box { width:100%; }
.auth-form-box h2 { font-size:1.8rem; font-weight:800; margin-bottom:6px; }
.auth-sub { color:#888; margin-bottom:28px; font-size:0.9rem; }
.auth-switch { text-align:center; margin-top:20px; font-size:0.88rem; color:#666; }
.auth-switch a { color:var(--red); font-weight:600; }
.demo-hint { margin-top:16px; background:#fff8e1; border:1px solid #f5c518; border-radius:10px; padding:10px 14px; font-size:0.82rem; color:#7a6000; text-align:center; }

/* ─── FORMS ─── */
.form-group { display:flex; flex-direction:column; gap:6px; margin-bottom:16px; }
.form-group label { font-size:0.85rem; font-weight:600; color:#444; }
.form-group input,
.form-group select,
.form-group textarea {
  border:1.5px solid #e2e2e2; border-radius:10px;
  padding:11px 14px; font-family:'DM Sans',sans-serif; font-size:0.9rem;
  color:#1a1a1a; outline:none; transition:border-color 0.2s;
  background:white;
}
.form-group input:focus,
.form-group select:focus { border-color:var(--red); }
.form-row { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.form-section-title { font-family:'Syne',sans-serif; font-weight:700; font-size:0.9rem; color:var(--red); margin:20px 0 12px; padding-bottom:8px; border-bottom:2px solid #f5eded; }
.form-buttons { display:flex; gap:12px; margin-top:24px; }
.fg-small { margin-bottom:0; }

/* ─── BUTTONS ─── */
.btn-primary, a.btn-primary {
  background:linear-gradient(135deg,var(--red-dark),var(--red));
  color:white; border:none; padding:11px 24px; border-radius:50px;
  font-family:'Syne',sans-serif; font-weight:700; font-size:0.9rem;
  cursor:pointer; transition:all 0.25s; display:inline-flex; align-items:center; gap:6px;
}
.btn-primary:hover { box-shadow:0 8px 24px rgba(204,27,27,0.35); transform:translateY(-1px); }
.btn-secondary {
  background:white; color:var(--red); border:1.5px solid var(--red);
  padding:10px 22px; border-radius:50px;
  font-family:'Syne',sans-serif; font-weight:700; font-size:0.9rem;
  cursor:pointer; transition:all 0.2s;
}
.btn-secondary:hover { background:#fdf0f0; }
.btn-full { width:100%; padding:14px; border:none; border-radius:12px; background:linear-gradient(135deg,var(--red-dark),var(--red)); color:white; font-family:'Syne',sans-serif; font-weight:700; font-size:1rem; cursor:pointer; transition:all 0.25s; margin-top:4px; }
.btn-full:hover { box-shadow:0 8px 24px rgba(204,27,27,0.3); }
.btn-ghost { background:none; border:none; color:#888; font-size:0.88rem; cursor:pointer; padding:10px 16px; border-radius:8px; transition:all 0.2s; text-decoration:none; display:inline-flex; align-items:center; }
.btn-ghost:hover { background:#f0f0f0; color:#333; }
.btn-ghost-sm { background:none; border:1px solid #ddd; color:#888; font-size:0.78rem; cursor:pointer; padding:5px 12px; border-radius:8px; transition:all 0.2s; display:inline-flex; align-items:center; gap:4px; }
.btn-ghost-sm:hover { border-color:var(--red); color:var(--red); }
.btn-delete { background:none; border:none; cursor:pointer; font-size:1rem; opacity:0.5; transition:opacity 0.2s; }
.btn-delete:hover { opacity:1; }

/* ─── APP LAYOUT ─── */
.app-body { background:var(--bg); min-height:100vh; }
.sidebar {
  position:fixed; top:0; left:0; bottom:0; width:var(--sidebar-w);
  background:#fff; border-right:1px solid #ebebeb;
  display:flex; flex-direction:column; z-index:50;
  padding:0 0 24px;
}
.sidebar-logo { padding:22px 22px 16px; border-bottom:1px solid #f0f0f0; margin-bottom:12px; }
.sidebar-logo a { font-family:'Syne',sans-serif; font-weight:800; font-size:1.3rem; color:#1a1a1a; }
.sidebar-logo a span { color:var(--red); }
.sidebar-nav { flex:1; padding:0 12px; display:flex; flex-direction:column; gap:2px; }
.snav-item {
  display:flex; align-items:center; gap:10px;
  padding:10px 12px; border-radius:10px;
  font-size:0.88rem; font-weight:500; color:#555;
  transition:all 0.2s; cursor:pointer;
}
.snav-item:hover { background:#f5f5f5; color:#1a1a1a; }
.snav-item.active { background:#fdf0f0; color:var(--red); font-weight:700; }
.snav-icon { width:20px; text-align:center; }
.snav-divider { border-top:1px solid #f0f0f0; margin:8px 0; }
.snav-logout:hover { background:#fdf0f0; color:var(--red); }
.sidebar-plan { padding:12px 18px; margin:0 12px; border-radius:12px; background:#f9f9f9; border:1px solid #ebebeb; }
.sp-badge { font-size:0.72rem; text-transform:uppercase; letter-spacing:0.06em; color:var(--red); font-weight:700; margin-bottom:2px; }
.sp-name  { font-size:0.85rem; font-weight:600; color:#333; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }

.app-main { margin-left:var(--sidebar-w); display:flex; flex-direction:column; min-height:100vh; }

.topbar {
  background:white; border-bottom:1px solid #ebebeb;
  padding:14px 28px; display:flex; align-items:center; gap:16px;
  position:sticky; top:0; z-index:40;
}
.topbar-menu-btn { display:none; background:none; border:none; font-size:1.3rem; cursor:pointer; color:#555; }
.topbar-title { font-family:'Syne',sans-serif; font-weight:700; font-size:1rem; color:#1a1a1a; flex:1; }
.topbar-right { display:flex; align-items:center; gap:12px; }
.topbar-user { display:flex; align-items:center; gap:8px; font-size:0.85rem; font-weight:500; color:#555; }
.topbar-avatar {
  width:32px; height:32px; border-radius:50%;
  background:var(--red); color:white;
  font-family:'Syne',sans-serif; font-weight:800; font-size:0.85rem;
  display:flex; align-items:center; justify-content:center;
}

.page-content { padding:28px; flex:1; }
.page-header { display:flex; align-items:center; justify-content:space-between; margin-bottom:24px; }
.page-title  { font-size:1.6rem; font-weight:800; margin-bottom:2px; }
.page-sub    { font-size:0.88rem; color:#888; }

/* ─── CARDS ─── */
.card { background:white; border-radius:16px; border:1px solid #ebebeb; box-shadow:var(--shadow); padding:24px; }
.card-header { display:flex; align-items:center; justify-content:space-between; margin-bottom:20px; }
.card-header h3 { font-size:1rem; font-weight:700; }
.card-link { font-size:0.82rem; color:var(--red); font-weight:600; }
.mt-16 { margin-top:16px; }
.mt-24 { margin-top:24px; }
.mb-16 { margin-bottom:16px; }
.ml-auto { margin-left:auto; }

/* ─── KPI ─── */
.kpi-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:16px; margin-bottom:24px; }
.kpi-small .kpi-card { padding:16px; }
.kpi-card {
  background:white; border-radius:14px; padding:20px;
  border:1px solid #ebebeb; box-shadow:var(--shadow);
  display:flex; align-items:center; gap:14px;
}
.kpi-icon { font-size:1.6rem; }
.kpi-label { font-size:0.75rem; color:#888; margin-bottom:4px; text-transform:uppercase; letter-spacing:0.05em; }
.kpi-value { font-family:'Syne',sans-serif; font-size:1.5rem; font-weight:800; line-height:1; }
.kpi-card.gold .kpi-value  { color:var(--gold); }
.kpi-card.green .kpi-value { color:#16a34a; }
.kpi-card.blue .kpi-value  { color:#2563eb; }
.kpi-card.red .kpi-value   { color:var(--red); }

/* ─── DASH ─── */
.dash-cols { display:grid; grid-template-columns:1fr 1fr; gap:20px; }

/* ─── Product Kar List ─── */
.product-kar-list { list-style:none; display:flex; flex-direction:column; gap:12px; }
.pkl-row { display:flex; align-items:center; gap:10px; }
.pkl-name { min-width:140px; font-size:0.85rem; color:#333; }
.pkl-cat  { font-size:0.7rem; background:#f5f5f5; border-radius:4px; padding:2px 6px; margin-right:6px; color:#666; }
.pkl-bar-wrap { flex:1; height:6px; background:#f0f0f0; border-radius:3px; overflow:hidden; }
.pkl-bar { height:100%; border-radius:3px; transition:width 0.8s ease; }
.pkl-marj { min-width:50px; text-align:right; font-size:0.85rem; font-weight:700; }
.pkl-marj.good { color:#16a34a; }
.pkl-marj.warn { color:#ca8a04; }
.pkl-marj.bad  { color:var(--red); }

/* ─── TABLE ─── */
.table-wrap { overflow-x:auto; }
.data-table { width:100%; border-collapse:collapse; }
.data-table th { font-size:0.75rem; text-transform:uppercase; letter-spacing:0.05em; color:#888; font-weight:600; padding:10px 12px; text-align:left; border-bottom:2px solid #f0f0f0; white-space:nowrap; }
.data-table td { padding:12px 12px; font-size:0.88rem; color:#333; border-bottom:1px solid #f8f8f8; }
.data-table tr:last-child td { border-bottom:none; }
.data-table tr:hover td { background:#fafafa; }
.td-muted { color:#aaa !important; }

/* ─── BADGES ─── */
.badge { display:inline-block; padding:3px 10px; border-radius:50px; font-size:0.75rem; font-weight:700; }
.badge-green { background:#dcfce7; color:#16a34a; }
.badge-gold  { background:#fef9c3; color:#ca8a04; }
.badge-red   { background:#fee2e2; color:var(--red); }
.badge-cat   { background:#f3f4f6; color:#555; padding:3px 9px; border-radius:6px; font-size:0.78rem; }
.green { color:#16a34a; }
.gold  { color:#ca8a04; }
.red   { color:var(--red); }

/* ─── ALERTS ─── */
.alert { padding:12px 16px; border-radius:10px; margin-bottom:16px; font-size:0.9rem; font-weight:500; }
.alert-error   { background:#fee2e2; color:var(--red); border:1px solid #fca5a5; }
.alert-success { background:#dcfce7; color:#16a34a; border:1px solid #86efac; }

/* ─── EMPTY STATE ─── */
.empty-state { text-align:center; padding:32px; color:#aaa; font-size:0.9rem; }
.empty-state.large { padding:60px 32px; }
.empty-state.large h3 { font-size:1.2rem; color:#555; margin-bottom:8px; }
.empty-state a { color:var(--red); font-weight:600; }

/* ─── FILTERS ─── */
.filter-row { display:flex; align-items:center; gap:12px; flex-wrap:wrap; }
.filter-row .form-group { margin-bottom:0; }
.filter-row input, .filter-row select { min-width:180px; }

/* ─── MALIYET PAGE ─── */
.maliyet-layout { display:grid; grid-template-columns:1fr 1fr; gap:24px; align-items:start; }
.sonuc-card { position:sticky; top:76px; }
.sonuc-grid { display:grid; grid-template-columns:1fr 1fr; gap:12px; }
.sonuc-item { background:#f9f9f9; border-radius:10px; padding:14px; }
.sonuc-item.highlight { background:#fdf0f0; border:1px solid #fca5a5; grid-column:span 2; }
.sonuc-item.green-bg { background:#f0fdf4; border:1px solid #86efac; }
.sonuc-item.gold-bg  { background:#fefce8; border:1px solid #fde68a; }
.sonuc-item.red-bg   { background:#fef2f2; border:1px solid #fca5a5; }
.sonuc-label { font-size:0.75rem; color:#888; margin-bottom:4px; text-transform:uppercase; letter-spacing:0.04em; }
.sonuc-value { font-family:'Syne',sans-serif; font-size:1.3rem; font-weight:800; }
.kar-yorum { grid-column:span 2; background:#f0fdf4; border:1px solid #86efac; border-radius:10px; padding:12px 14px; font-size:0.88rem; color:#166534; line-height:1.5; }
.sonuc-placeholder { text-align:center; padding:32px 16px; color:#aaa; }

/* ─── SIMULATION ─── */
.sim-layout { display:grid; grid-template-columns:1fr; gap:20px; }
.sim-card-full {}
.sim-desc { font-size:0.88rem; color:#888; margin-bottom:16px; }
.sim-form { display:flex; flex-wrap:wrap; gap:16px; margin-bottom:20px; align-items:flex-end; }
.sim-form .form-group { min-width:140px; flex:1; }
.sim-form-col { flex-direction:column; }
.sim-layout .dash-cols { grid-template-columns:1fr 1fr; }
.slider-group { margin-bottom:16px; }
.slider-group label { font-size:0.85rem; font-weight:600; color:#444; display:block; margin-bottom:8px; }
.slider-group strong { color:var(--red); }
input[type="range"] { width:100%; accent-color:var(--red); }
.sim-result-box { background:#f9f9f9; border-radius:10px; padding:16px; display:flex; flex-direction:column; gap:8px; }
.sim-sonuc { background:#f9f9f9; border-radius:10px; padding:16px; margin-top:16px; display:flex; flex-direction:column; gap:8px; }
.sr-row { display:flex; justify-content:space-between; align-items:center; font-size:0.88rem; padding:4px 0; border-bottom:1px solid #f0f0f0; }
.sr-row:last-of-type { border-bottom:none; }
.sr-row span { color:#888; }
.sr-row strong { font-weight:700; }
.sr-yorum { margin-top:8px; padding:10px 12px; border-radius:8px; font-size:0.85rem; line-height:1.5; }
.yorum-green { background:#f0fdf4; color:#166534; border:1px solid #86efac; }
.yorum-gold  { background:#fefce8; color:#854d0e; border:1px solid #fde68a; }
.yorum-red   { background:#fef2f2; color:#991b1b; border:1px solid #fca5a5; }

/* ─── AI CHAT ─── */
.page-chat { padding:28px; height:calc(100vh - 65px); display:flex; flex-direction:column; }
.chat-layout-full { display:grid; grid-template-columns:260px 1fr; gap:20px; flex:1; min-height:0; }
.chat-side { display:flex; flex-direction:column; gap:0; overflow-y:auto; }
.chat-stats { display:grid; grid-template-columns:1fr 1fr; gap:10px; }
.cs-item { background:#f9f9f9; border-radius:8px; padding:10px; text-align:center; }
.cs-item span { display:block; font-size:0.72rem; color:#888; margin-bottom:2px; }
.cs-item strong { font-family:'Syne',sans-serif; font-size:1rem; font-weight:800; color:#1a1a1a; }
.quick-qs { display:flex; flex-direction:column; gap:8px; }
.quick-q { background:#f5f5f5; border:1px solid #ebebeb; border-radius:10px; padding:10px 12px; text-align:left; cursor:pointer; font-size:0.83rem; color:#444; transition:all 0.2s; font-family:'DM Sans',sans-serif; }
.quick-q:hover { border-color:var(--red); background:#fdf0f0; color:var(--red); }
.chat-card { display:flex; flex-direction:column; min-height:0; padding:0; overflow:hidden; }
.chat-topbar-inner { padding:16px 20px; border-bottom:1px solid #f0f0f0; display:flex; align-items:center; gap:12px; flex-shrink:0; }
.chat-topbar-inner strong { font-size:0.95rem; font-weight:700; }
.chat-topbar-inner p { font-size:0.78rem; color:#888; }
.chat-av { width:36px; height:36px; border-radius:50%; background:linear-gradient(135deg,var(--red-dark),var(--red)); color:white; font-family:'Syne',sans-serif; font-weight:800; font-size:0.9rem; display:flex; align-items:center; justify-content:center; flex-shrink:0; }
.chat-msgs { flex:1; overflow-y:auto; padding:20px; display:flex; flex-direction:column; gap:12px; }
.chat-msgs::-webkit-scrollbar { width:4px; }
.chat-msgs::-webkit-scrollbar-thumb { background:#ddd; border-radius:4px; }
.chat-welcome { text-align:center; padding:32px 16px; color:#aaa; }
.chat-welcome h3 { font-size:1.1rem; color:#555; margin-bottom:8px; }
.chat-welcome p { font-size:0.88rem; }
.msg { display:flex; }
.msg.user { justify-content:flex-end; }
.msg.ai   { justify-content:flex-start; }
.msg-b { max-width:80%; padding:10px 14px; border-radius:14px; font-size:0.88rem; line-height:1.55; }
.msg.ai   .msg-b { background:#f5f5f5; border-radius:4px 14px 14px 14px; color:#333; }
.msg.user .msg-b { background:linear-gradient(135deg,var(--red-dark),var(--red)); color:white; border-radius:14px 14px 4px 14px; }
.typing-dots { display:flex; align-items:center; gap:4px; padding:14px 18px; }
.typing-dots span { width:7px; height:7px; background:#aaa; border-radius:50%; animation:typing 1.2s infinite; }
.typing-dots span:nth-child(2) { animation-delay:0.2s; }
.typing-dots span:nth-child(3) { animation-delay:0.4s; }
@keyframes typing { 0%,80%,100%{transform:scale(1);opacity:0.5} 40%{transform:scale(1.2);opacity:1} }
.chat-input-row { padding:14px 16px; border-top:1px solid #f0f0f0; display:flex; gap:10px; flex-shrink:0; }
.chat-input-box { flex:1; border:1.5px solid #e2e2e2; border-radius:50px; padding:10px 18px; font-family:'DM Sans',sans-serif; font-size:0.88rem; outline:none; transition:border-color 0.2s; }
.chat-input-box:focus { border-color:var(--red); }
.chat-send-btn { width:40px; height:40px; border-radius:50%; background:linear-gradient(135deg,var(--red-dark),var(--red)); border:none; color:white; cursor:pointer; font-size:1rem; display:flex; align-items:center; justify-content:center; flex-shrink:0; transition:all 0.2s; }
.chat-send-btn:hover { transform:scale(1.05); box-shadow:0 4px 12px rgba(204,27,27,0.3); }

/* ─── RESPONSIVE ─── */
@media (max-width:1200px) {
  .kpi-grid { grid-template-columns:repeat(2,1fr); }
  .dash-cols { grid-template-columns:1fr; }
  .maliyet-layout { grid-template-columns:1fr; }
  .sonuc-card { position:static; }
}
@media (max-width:900px) {
  .sidebar { transform:translateX(-100%); transition:transform 0.3s; }
  .sidebar.open { transform:translateX(0); }
  .app-main { margin-left:0; }
  .topbar-menu-btn { display:block; }
  .chat-layout-full { grid-template-columns:1fr; }
  .chat-side { display:none; }
  .auth-left { display:none; }
  .auth-right { width:100%; }
  .sim-layout { grid-template-columns:1fr; }
}
@media (max-width:600px) {
  .kpi-grid { grid-template-columns:1fr 1fr; }
  .form-row { grid-template-columns:1fr; }
  .page-header { flex-direction:column; align-items:flex-start; gap:12px; }
  .filter-row { flex-direction:column; align-items:stretch; }
}