/* เฟส 3b: app.css — สไตล์กลางทั้งระบบ (app shell + components + login)
   เขียนใหม่ทั้งไฟล์แทนของเดิม phase 2 · ครอบคลุม 6 หน้า: dashboard / entry / import / analysis / projects / users
   หลักการ theme: นิยามทุกสีที่ :root (light เต็มชุด) ก่อนเสมอ แล้วค่อย override ใน media/[data-theme] */

/* ============ Design tokens (light — ชุดเต็ม) ============ */
:root {
  --bg: #f1f5f9;
  --surface: #ffffff;
  --surface-2: #f8fafc;
  --border: #e2e8f0;
  --text: #0f172a;
  --text-muted: #5b6472;

  --primary: #2563eb;
  --primary-contrast: #ffffff;
  --primary-weak: #e8f0fe;

  --success: #16a34a;
  --danger: #dc2626;
  --warning: #d97706;

  --radius: 14px;
  --radius-sm: 8px;
  --shadow-card: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 24px rgba(15, 23, 42, 0.06);

  --sidebar-w: 232px;
  --topbar-h: 60px;

  --font: "Noto Sans Thai", "Sarabun", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

/* dark ผ่าน system setting (ไม่ได้บังคับ light ด้วย data-theme) */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0b1120;
    --surface: #131c2e;
    --surface-2: #1b2740;
    --border: #2a3a55;
    --text: #e6ecf5;
    --text-muted: #9aa8bd;

    --primary: #5b9bff;
    --primary-contrast: #0b1120;
    --primary-weak: #1c2c4d;

    --success: #4ade80;
    --danger: #f87171;
    --warning: #fbbf24;

    --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.35);
  }
}

/* dark บังคับผ่าน toggle */
:root[data-theme="dark"] {
  --bg: #0b1120;
  --surface: #131c2e;
  --surface-2: #1b2740;
  --border: #2a3a55;
  --text: #e6ecf5;
  --text-muted: #9aa8bd;

  --primary: #5b9bff;
  --primary-contrast: #0b1120;
  --primary-weak: #1c2c4d;

  --success: #4ade80;
  --danger: #f87171;
  --warning: #fbbf24;

  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.35);
}

/* ============ reset เบา ๆ ============ */
* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

/* ลำดับชั้นตัวอักษร: family เดียว (--font) แต่ให้ขนาด+น้ำหนักเป็นตัวแบกลำดับชั้น
   base 15px · h3 18px · h2 21px · h1 26px (ratio ~1.73 ต่อ base) */
h1, h2, h3, h4 { margin: 0 0 12px; line-height: 1.25; font-weight: 700; }
h1 { font-size: 26px; letter-spacing: -0.01em; }
h2 { font-size: 21px; }
h3 { font-size: 18px; }
a { color: var(--primary); }
img { max-width: 100%; }

/* ============ App shell ============ */
.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  min-height: 100vh;
}

.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-w);
  height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border-right: 1px solid var(--border);
  z-index: 40;
  transition: transform 0.22s ease;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 18px;
  height: var(--topbar-h);
  font-weight: 700;
  font-size: 15px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.sidebar-brand .brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--primary);
  color: var(--primary-contrast);
  font-size: 13px;
  flex-shrink: 0;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 14px 12px;
}

.sidebar-section-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 16px 8px 6px;
}
.sidebar-section-label:first-child { margin-top: 0; }

.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: var(--radius-sm);
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
  margin-bottom: 2px;
}
.nav-link:hover { background: var(--surface-2); }
.nav-link svg { width: 18px; height: 18px; flex-shrink: 0; opacity: 0.85; }
.nav-link.is-active {
  background: var(--primary-weak);
  color: var(--primary);
  font-weight: 700;
}
.nav-link.is-active svg { opacity: 1; }

.sidebar-footer {
  flex-shrink: 0;
  padding: 12px;
  border-top: 1px solid var(--border);
}
.sidebar-footer .topbar-user { margin-bottom: 8px; padding: 0 4px; }

.main {
  grid-column: 2;
  margin-left: var(--sidebar-w);
  min-width: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 12px;
  height: var(--topbar-h);
  padding: 0 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.page-title {
  font-size: 17px;
  font-weight: 700;
  margin: 0;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.topbar-user {
  font-size: 13px;
  color: var(--text-muted);
  text-align: right;
  line-height: 1.35;
}
.topbar-user strong { display: block; color: var(--text); font-size: 14px; font-weight: 600; }

.hamburger {
  display: none;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}
.hamburger svg { width: 20px; height: 20px; }

.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  z-index: 35;
}
.sidebar-backdrop.is-visible { display: block; }

.page-body {
  padding: 24px;
  max-width: 1200px;
  width: 100%;
}

/* ============ Mobile ============ */
@media (max-width: 860px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { transform: translateX(-100%); }
  .sidebar.is-open { transform: translateX(0); box-shadow: 0 0 40px rgba(0, 0, 0, 0.25); }
  .main { grid-column: 1; margin-left: 0; }
  .hamburger { display: inline-flex; }
  .page-body { padding: 16px; }
  .topbar { padding: 0 14px; }
}

/* ============ Components ============ */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 20px;
}
.card + .card { margin-top: 16px; }
.card-title { font-size: 16px; font-weight: 700; margin: 0 0 14px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  line-height: 1;
}
.btn:hover { background: var(--surface-2); }
.btn:disabled { opacity: 0.55; cursor: default; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: var(--primary-contrast); }
.btn-primary:hover { filter: brightness(1.06); background: var(--primary); }
.btn-ghost { background: transparent; border-color: transparent; }
.btn-ghost:hover { background: var(--surface-2); }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-danger:hover { filter: brightness(1.06); background: var(--danger); }
.btn-sm { padding: 6px 10px; font-size: 13px; }

.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
label { font-size: 13px; font-weight: 600; color: var(--text); }

input, select, textarea {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  background: var(--surface);
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
  width: 100%;
}
textarea { resize: vertical; min-height: 68px; }
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-weak);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

.table-scroll { overflow-x: auto; width: 100%; }
table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
table.data th {
  text-align: left;
  padding: 8px;
  border-bottom: 2px solid var(--border);
  font-weight: 700;
  color: var(--text-muted);
  white-space: nowrap;
}
table.data td { padding: 8px; border-bottom: 1px solid var(--border); }
table.data tbody tr:nth-child(even) { background: var(--surface-2); }

.badge, .pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.6;
  background: var(--surface-2);
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.pill-success { background: color-mix(in srgb, var(--success) 15%, transparent); color: var(--success); border-color: transparent; }
.pill-warn { background: color-mix(in srgb, var(--warning) 16%, transparent); color: var(--warning); border-color: transparent; }
.pill-muted { background: var(--surface-2); color: var(--text-muted); border-color: var(--border); }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--primary-weak);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
}

.empty-state {
  text-align: center;
  color: var(--text-muted);
  padding: 48px 20px;
}
.empty-state .icon { font-size: 34px; display: block; margin-bottom: 10px; opacity: 0.7; }

.loading { color: var(--text-muted); padding: 24px 0; }
.loading::before { content: "⏳ "; }

.error-banner {
  background: color-mix(in srgb, var(--danger) 12%, transparent);
  color: var(--danger);
  border: 1px solid color-mix(in srgb, var(--danger) 40%, transparent);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 14px;
  margin-bottom: 16px;
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.toolbar .toolbar-group { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.toolbar select { width: auto; }

.tag-input {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
}
.tag-input input { border: none; flex: 1; min-width: 120px; padding: 4px; }
.tag-input input:focus { box-shadow: none; }

.checkbox-row { display: flex; align-items: center; gap: 8px; }
.checkbox-row input { width: auto; }
.checkbox-row label { font-weight: 400; margin: 0; }

/* delta badge (จาก format.js deltaBadge) */
.delta { display: inline-flex; align-items: center; gap: 3px; font-weight: 700; font-size: 13px; }
.delta-up { color: var(--success); }
.delta-down { color: var(--danger); }
.delta-flat { color: var(--text-muted); }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

/* ============ Login page ============ */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: var(--bg);
}
.login-card {
  width: 100%;
  max-width: 360px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 32px 28px;
}
.login-card h1 { font-size: 25px; font-weight: 700; line-height: 1.2; margin: 0 0 6px; }
.login-card .subtitle { margin: 0 0 26px; color: var(--text-muted); font-size: 14px; font-weight: 400; }
.login-card .field { margin-bottom: 16px; }
.login-card .field input { width: 100%; }
.login-card .btn-primary { width: 100%; margin-top: 4px; }
.error-message { margin: 14px 0 0; color: var(--danger); font-size: 13px; }