/*
  Projexa — app/ — style.css
  โค้ดจริง (ไม่ใช่ prototype) ของโมดูล Screen Tracking (ขอบเขต NoSQL — งานส่ง
  หลักสูตร) — คัดลอก Design Tokens มาจาก docs/02-design/01-prototypes/DESIGN.md
  ("Warm Terracotta Workspace": Sand & Cream + Terracotta & Sage, ฟอนต์
  Mitr/Noto Sans Thai/Figtree, ปุ่ม/แท็ก/status pill ทรง pill เต็มขอบ 999px,
  sidebar พื้นเขียวเข้ม accent2-900, การ์ด/panel แบบ flat ไม่มี shadow) — เหมือน
  หน้าตา docs/02-design/01-prototypes/v2/ ทุกประการ แต่เป็นไฟล์แยกต่างหาก
  (ไม่อ้างอิงข้าม ไม่แก้ v2/ ตามกฎ self-contained snapshot ของ prototype)
*/

:root {
  /* พื้นหลัง (Neutral — Sand & Cream, DESIGN.md §2.1) */
  --color-bg-page: #F5EAD8;        /* bg-page */
  --color-bg-surface: #F9F4ED;     /* sand-100 */
  --color-bg-surface-alt: #EBDDC5; /* surface-alt — input field */
  --color-bg-hover: #EEE7DB;       /* sand-200 — hover state แถวตาราง */
  --color-border: #DCD3C4;         /* sand-300 */
  --color-border-strong: #C0B6A5;  /* sand-400 */
  /* ข้อความ */
  --color-text-muted: #A19786;     /* sand-500 */
  --color-text-secondary: #645C50; /* sand-700 */
  --color-text-tag: #474238;       /* ink-800 — ตัวอักษร tag/pill แบบ neutral */
  --color-text-primary: #2E2B25;   /* ink-900 */
  /* accent — Terracotta & Sage */
  --color-accent-tint: #FFF2EB;    /* accent-100 */
  --color-accent: #C67139;        /* accent-base */
  --color-accent-hover: #B2622D;  /* accent-600 */
  --color-accent-outline: #8C491A;/* accent-700 — ข้อความ/ขอบของ "สถานะถัดไป" แบบ outline */
  --color-accent2-tint: #F0FAE1;  /* accent2-100 */
  --color-accent2: #8FA073;       /* accent2-500 */
  --color-sidebar-bg: #272E1B;    /* accent2-900 — พื้น sidebar เขียวเข้มเกือบดำ (ข้อยกเว้นพื้นเข้มจุดเดียว) */
  /* semantic */
  --color-success: #5B7A45; --color-success-bg: #F0FAE1;
  --color-warning: #B3812E; --color-warning-bg: #FFF2EB;
  --color-danger:  #B23A2D; --color-danger-bg:  #FBE4DE;
  --color-info:    #6E63C8; --color-info-bg:    #EBE8FA;
  /* typography (DESIGN.md §2.2) */
  --font-th: "Noto Sans Thai", "Figtree", system-ui, sans-serif;   /* เนื้อหาไทยทั่วไป */
  --font-heading: "Mitr", system-ui, sans-serif;                   /* หัวข้อ/แบรนด์/ปุ่ม (ไทย) */
  --font-en: "Figtree", system-ui, sans-serif;                     /* label อังกฤษ/ตัวเลข/วันที่ */
  --font-mono: "IBM Plex Mono", monospace;                         /* รหัสอ้างอิง เช่น SCR-xxx */
  /* spacing (4px grid, DESIGN.md §2.3) */
  --sp-1: 4px; --sp-2: 8px; --sp-3: 12px; --sp-4: 16px;
  --sp-6: 24px; --sp-8: 32px; --sp-12: 48px; --sp-16: 64px;
  /* radius / border / shadow (DESIGN.md §2.4) */
  --radius-sm: 8px; --radius-md: 16px; --radius-lg: 28px; --radius-pill: 999px;
  --shadow-sm: 0 1px 2px rgba(46, 43, 37, 0.14);
  --shadow-md: 0 3px 10px rgba(46, 43, 37, 0.16);
  --shadow-lg: 0 12px 32px rgba(46, 43, 37, 0.22);
  --shadow-float: var(--shadow-sm);
  --shadow-modal: var(--shadow-lg);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
body {
  margin: 0; background: var(--color-bg-page); color: var(--color-text-primary);
  font-family: var(--font-th); font-size: 14px; line-height: 22px;
}
.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 240px; flex: none; background: var(--color-sidebar-bg);
  padding: var(--sp-6) var(--sp-4); color: var(--color-bg-page);
}
.sidebar-group { margin-bottom: var(--sp-6); }
.sidebar-group h4 {
  font-family: var(--font-heading); font-size: 12px; color: rgba(245, 234, 216, 0.6);
  text-transform: uppercase; margin: 0 0 var(--sp-2) var(--sp-2); font-weight: 500;
}
.sidebar-logo { display: block; width: 100%; height: auto; margin: 0 0 var(--sp-2); }
.sidebar-item {
  display: block; padding: var(--sp-2) var(--sp-3); border-radius: var(--radius-sm);
  color: var(--color-bg-page); text-decoration: none; font-size: 13px;
}
.sidebar-item:hover { background: rgba(245, 234, 216, 0.08); }
.sidebar-item.active { background: rgba(245, 234, 216, 0.14); box-shadow: var(--shadow-sm); font-weight: 500; }
.content { flex: 1; padding: var(--sp-12) var(--sp-8); max-width: 1200px; }
.breadcrumb { font-size: 13px; color: var(--color-text-secondary); margin-bottom: var(--sp-3); font-family: var(--font-en); }
.breadcrumb a { color: var(--color-text-secondary); text-decoration: none; }
.breadcrumb .sep { color: var(--color-border-strong); margin: 0 var(--sp-1); }
.page-header { display: flex; align-items: center; gap: var(--sp-3); margin-bottom: var(--sp-2); flex-wrap: wrap; }
.page-header h1 { font-family: var(--font-heading); font-size: 28px; line-height: 36px; font-weight: 600; margin: 0; }
.page-sub { color: var(--color-text-secondary); margin: 0 0 var(--sp-6); }
.pill {
  display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 500;
  padding: 4px var(--sp-3); border-radius: var(--radius-pill);
}
.pill::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.pill-draft { color: var(--color-text-muted); background: var(--color-bg-surface); }
.pill-review { color: var(--color-info); background: var(--color-info-bg); }
.pill-confirmed { color: var(--color-accent2); background: var(--color-accent2-tint); }
.pill-progress { color: var(--color-bg-surface); background: var(--color-accent); }
.pill-blocked { color: var(--color-danger); background: var(--color-danger-bg); }
.tag {
  display: inline-block; font-size: 12px; padding: 4px var(--sp-3); border-radius: var(--radius-pill);
  background: var(--color-accent2-tint); color: var(--color-accent2); font-weight: 500;
}
.tag-suggested { background: var(--color-warning-bg); color: var(--color-warning); }
.card {
  background: var(--color-bg-surface); border-radius: var(--radius-md);
  padding: var(--sp-6); margin-bottom: var(--sp-6);
}
.card h2 { font-family: var(--font-heading); font-size: 20px; line-height: 28px; font-weight: 600; margin: 0 0 var(--sp-4); }
.card h3 { font-size: 16px; line-height: 24px; font-weight: 500; margin: 0 0 var(--sp-3); }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; font-size: 16px; font-weight: 500; background: var(--color-bg-surface); padding: var(--sp-2) var(--sp-3); border-bottom: 1px solid var(--color-border); }
td { padding: var(--sp-2) var(--sp-3); border-bottom: 1px solid var(--color-border); vertical-align: middle; }
tr:nth-child(even) td { background: var(--color-bg-page); }
tbody tr:hover td { background: var(--color-bg-hover); }
.btn {
  display: inline-flex; align-items: center; gap: var(--sp-2); border-radius: var(--radius-pill);
  padding: var(--sp-2) var(--sp-4); font-size: 14px; font-weight: 500; border: 1px solid transparent;
  cursor: pointer; text-decoration: none; font-family: var(--font-heading); background: transparent;
}
.btn-primary { background: var(--color-accent); color: var(--color-bg-surface); }
.btn-primary:hover { background: var(--color-accent-hover); }
.btn-secondary { background: transparent; border-color: var(--color-border-strong); color: var(--color-text-primary); }
.btn-secondary:hover { background: var(--color-bg-hover); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-link {
  background: none; border: none; padding: 0; color: var(--color-accent-outline); font-family: var(--font-th);
  font-size: 12px; text-decoration: underline; cursor: pointer;
}
.field { margin-bottom: var(--sp-4); }
.field label { display: block; font-size: 13px; margin-bottom: var(--sp-1); color: var(--color-text-secondary); }
.field input, .field select, .field textarea {
  width: 100%; padding: var(--sp-2) var(--sp-3); border: 1px solid var(--color-border);
  border-radius: var(--radius-sm); background: var(--color-bg-surface-alt); font-family: inherit; font-size: 14px;
  color: var(--color-text-primary);
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--color-accent); box-shadow: 0 0 0 2px var(--color-accent-tint);
}
.field.has-error input, .field.has-error textarea, .field.has-error select { border-color: var(--color-danger); }
.field-error { display: none; font-size: 12px; color: var(--color-danger); margin-top: var(--sp-1); }
.field.has-error .field-error { display: block; }
.ai-block {
  border: 1px dashed var(--color-warning); border-radius: var(--radius-md); padding: var(--sp-4);
  position: relative; margin-bottom: var(--sp-4); background: var(--color-bg-page);
}
.ai-block::before {
  content: "AI เสนอ"; position: absolute; top: -10px; left: var(--sp-3); background: var(--color-warning-bg);
  color: var(--color-warning); font-size: 11px; padding: 2px 8px; border-radius: var(--radius-pill);
}
.ai-block.is-confirmed { border-style: solid; border-color: var(--color-border); }
.ai-block.is-confirmed::before { content: "ยืนยันแล้ว"; background: var(--color-accent2-tint); color: var(--color-accent2); }
.trail { display: flex; align-items: center; gap: var(--sp-2); flex-wrap: wrap; margin-bottom: var(--sp-6); }
.trail .tag { background: var(--color-bg-surface); color: var(--color-text-secondary); }
.trail .arrow { color: var(--color-border-strong); }
.empty-state { text-align: center; padding: var(--sp-12) var(--sp-6); color: var(--color-text-secondary); }
.empty-state .btn-primary { margin-top: var(--sp-4); }
.note { font-size: 12px; color: var(--color-text-muted); margin-top: var(--sp-2); }
.field-label-row { position: relative; display: flex; align-items: center; justify-content: space-between; gap: var(--sp-2); margin-bottom: var(--sp-1); }
.field-label-row label { margin-bottom: 0; }

.toast {
  position: fixed; top: var(--sp-6); right: var(--sp-6); z-index: 100; max-width: 320px;
  background: var(--color-bg-surface); border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg); padding: var(--sp-3) var(--sp-4); font-size: 13px;
  opacity: 0; transform: translateY(-8px); transition: opacity 200ms ease-out, transform 200ms ease-out;
}
.toast.is-visible { opacity: 1; transform: translateY(0); }
.toast-success { border-left: 3px solid var(--color-success); }
.toast-danger { border-left: 3px solid var(--color-danger); }
.toast-close { margin-left: var(--sp-3); background: none; border: none; cursor: pointer; color: var(--color-text-muted); font-size: 14px; }
@media (prefers-reduced-motion: reduce) {
  .toast { transition: none; }
}

/* ---------------------------------------------------------------------
   ส่วนเสริมเฉพาะโมดูล Screen Tracking (Avatar, Status Chip, Workflow Stepper,
   ประวัติ statusHistory, filter bar, 2-column assign layout, ผลลัพธ์ batch)
--------------------------------------------------------------------- */
.avatar {
  display: inline-flex; align-items: center; justify-content: center; flex: none;
  width: 24px; height: 24px; border-radius: 50%; font-size: 11px; font-weight: 600;
  background: var(--color-accent-tint); color: var(--color-text-primary); font-family: var(--font-en);
}
.avatar.is-accent2 { background: var(--color-accent2-tint); }
.avatar-row { display: inline-flex; align-items: center; gap: var(--sp-2); }
.avatar-row .avatar-empty { color: var(--color-text-muted); font-size: 12px; }

.status-chip {
  display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 500;
  padding: 4px var(--sp-3); border-radius: var(--radius-pill); border: 1px solid transparent; white-space: nowrap;
}
.status-chip.is-current { background: var(--color-accent); color: var(--color-bg-surface); }
.status-chip.is-next { background: transparent; border-color: var(--color-accent-outline); color: var(--color-accent-outline); }
.status-chip.is-neutral { background: var(--color-bg-page); color: var(--color-text-tag); border-color: var(--color-border); }

.filter-bar { display: flex; gap: var(--sp-3); align-items: flex-end; margin-bottom: var(--sp-4); flex-wrap: wrap; }
.filter-bar .field { margin-bottom: 0; min-width: 180px; }
.filter-bar-actions { margin-left: auto; display: flex; gap: var(--sp-2); align-items: center; }
.selected-count { font-size: 13px; color: var(--color-text-secondary); margin-bottom: var(--sp-3); }
.selected-count strong { color: var(--color-accent); font-family: var(--font-en); }
.select-col { width: 28px; }

.split-layout { display: grid; grid-template-columns: 1.4fr 1fr; gap: var(--sp-6); align-items: start; }
@media (max-width: 900px) { .split-layout { grid-template-columns: 1fr; } }

.result-list { list-style: none; margin: var(--sp-3) 0 0; padding: 0; display: flex; flex-direction: column; gap: var(--sp-2); font-size: 13px; }
.result-item { display: flex; align-items: center; gap: var(--sp-2); }
.result-item .dot { width: 8px; height: 8px; border-radius: 50%; flex: none; }
.result-item.is-success .dot { background: var(--color-success); }
.result-item.is-failed .dot { background: var(--color-danger); }
.result-item.is-failed { color: var(--color-text-secondary); }
.result-item.is-neutral .dot { background: var(--color-text-muted); }
.result-item.is-neutral { color: var(--color-text-secondary); }

.stepper { display: flex; flex-direction: column; gap: 0; }
.stepper-step { display: flex; align-items: flex-start; gap: var(--sp-3); position: relative; padding-bottom: var(--sp-6); }
.stepper-step:last-child { padding-bottom: 0; }
.stepper-step:not(:last-child)::after {
  content: ""; position: absolute; left: 7px; top: 20px; bottom: 0; width: 2px; background: var(--color-border-strong);
}
.stepper-dot { width: 16px; height: 16px; border-radius: 50%; flex: none; margin-top: 2px; background: var(--color-border-strong); }
.stepper-step.is-passed .stepper-dot { background: var(--color-accent2); }
.stepper-step.is-current .stepper-dot { background: var(--color-accent); }
.stepper-label { font-size: 13px; font-weight: 500; }
.stepper-step.is-upcoming .stepper-label { color: var(--color-text-muted); font-weight: 400; }
.stepper-step.is-current .stepper-label { color: var(--color-accent); }

.history-list { list-style: none; margin: var(--sp-4) 0 0; padding: 0; display: flex; flex-direction: column; gap: var(--sp-3); }
.history-item { border-left: 2px solid var(--color-border); padding-left: var(--sp-3); }
.history-item .history-meta { font-size: 12px; color: var(--color-text-muted); font-family: var(--font-en); }
.history-item .history-change { font-size: 13px; margin: 2px 0; }
.history-item .history-reason { font-size: 12px; color: var(--color-text-secondary); }

.status-btn-row { display: flex; gap: var(--sp-3); flex-wrap: wrap; margin-bottom: var(--sp-4); }
.status-select-btn {
  border-radius: var(--radius-pill); padding: var(--sp-2) var(--sp-6); font-family: var(--font-heading);
  font-size: 14px; font-weight: 500; cursor: pointer; border: 1px solid var(--color-border-strong);
  background: transparent; color: var(--color-text-primary);
}
.status-select-btn.is-selected { background: var(--color-accent); border-color: var(--color-accent); color: var(--color-bg-surface); }

.loading-note { font-size: 13px; color: var(--color-text-muted); }

.btn-danger { background: var(--color-danger); color: var(--color-bg-surface); }
.btn-danger:hover { background: #96301F; }

.modal-overlay {
  position: fixed; inset: 0; background: rgba(46, 43, 37, 0.5); z-index: 200;
}
.modal-overlay:not([hidden]) { display: flex; align-items: center; justify-content: center; }
.modal {
  background: var(--color-bg-surface); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-modal); padding: var(--sp-6); max-width: 420px; width: 90%;
}
.modal h3 { font-family: var(--font-heading); font-size: 18px; font-weight: 600; margin: 0 0 var(--sp-3); }
.modal-actions { display: flex; justify-content: flex-end; gap: var(--sp-3); margin-top: var(--sp-4); }

/* ---------------------------------------------------------------------
   หน้าเข้าสู่ระบบ / สมัครสมาชิก (login.html, signup.html — ไม่มี sidebar)
--------------------------------------------------------------------- */
.auth-shell {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding: var(--sp-6); background: var(--color-bg-page);
}
.auth-card { width: 100%; max-width: 380px; margin-bottom: 0; }
.auth-title { font-family: var(--font-heading); font-size: 22px; font-weight: 600; margin: 0 0 var(--sp-1); }
.auth-logo { display: block; width: 100%; max-width: 220px; height: auto; margin: 0 auto var(--sp-3); }
.auth-links { text-align: center; font-size: 13px; color: var(--color-text-secondary); margin: var(--sp-4) 0 0; }
.auth-links a { color: var(--color-accent-outline); }

/* ผู้ใช้ปัจจุบัน + ออกจากระบบ ท้าย sidebar ของทุกหน้าที่ล็อกอินแล้ว */
.sidebar-user-group {
  border-top: 1px solid rgba(245, 234, 216, 0.14); padding-top: var(--sp-4);
  display: flex; align-items: center; justify-content: space-between; gap: var(--sp-2);
  font-size: 13px;
}
.sidebar-user-name { color: var(--color-bg-page); }
.sidebar-user-logout {
  background: none; border: none; cursor: pointer; padding: 0;
  color: rgba(245, 234, 216, 0.7); font-size: 12px; text-decoration: underline; font-family: inherit;
}
.sidebar-user-logout:hover { color: var(--color-bg-page); }