/* ============================================================================
 * UniCheck QR RUTS (RUTS Training Check-in System)
 * ไฟล์สไตล์หลักของระบบลงทะเบียนเข้าอบรมด้วย QR Code มหาวิทยาลัยเทคโนโลยีราชมงคลศรีวิชัย
 * Proprietary Stylesheet for Rajamangala University of Technology Srivijaya (RUTS)
 * Prefix: .ruts-* (Supports Day Mode 🌞 & Night Mode 🌙)
 * ============================================================================ */

@import url('https://fonts.googleapis.com/css2?family=Prompt:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --ruts-navy-950: #061527;
  --ruts-navy-900: #0c2340;
  --ruts-navy-800: #15325b;
  --ruts-navy-700: #1e3a8a;
  --ruts-gold-600: #b89225;
  --ruts-gold-500: #d4af37;
  --ruts-gold-400: #f59e0b;
  --ruts-gold-100: #fef3c7;
  --ruts-bg-soft: #f1f5f9;
  --ruts-card-bg: #ffffff;
  --ruts-card-header-bg: #f8fafc;
  --ruts-border: #cbd5e1;
  --ruts-text-main: #0f172a;
  --ruts-text-muted: #334155;
}

/* ตัวแปรสีสำหรับโหมดกลางคืน (Night Mode Variables) */
html.ruts-night-mode {
  --ruts-bg-soft: #09111f;
  --ruts-card-bg: #111c33;
  --ruts-card-header-bg: #0c1629;
  --ruts-border: #233554;
  --ruts-text-main: #f8fafc;
  --ruts-text-muted: #cbd5e1;
}

/* ตั้งค่าพื้นฐานของหน้าเว็บ / Base Typography & Layout */
body.ruts-body {
  font-family: 'Prompt', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--ruts-bg-soft);
  color: var(--ruts-text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.ruts-mono {
  font-family: 'JetBrains Mono', monospace;
}

/* แถบเมนูนำทางส่วนบนสีกรมท่า มทร.ศรีวิชัย / RUTS Deep Navy Navigation Bar */
.ruts-navbar {
  background: linear-gradient(135deg, var(--ruts-navy-950) 0%, var(--ruts-navy-900) 55%, var(--ruts-navy-700) 100%);
  border-bottom: 3px solid var(--ruts-gold-500);
  box-shadow: 0 4px 20px rgba(12, 35, 64, 0.28);
}

.ruts-nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.9rem;
  border-radius: 0.5rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.92);
  white-space: nowrap;
  transition: all 0.2s ease;
}

.ruts-nav-link:hover {
  color: #ffffff;
  background-color: rgba(255, 255, 255, 0.14);
}

.ruts-nav-active {
  color: var(--ruts-navy-950) !important;
  background: linear-gradient(135deg, var(--ruts-gold-500) 0%, var(--ruts-gold-400) 100%) !important;
  font-weight: 600;
  box-shadow: 0 2px 10px rgba(212, 175, 55, 0.35);
}

/* ปุ่มสลับโหมดกลางวัน / กลางคืน / Day-Night Theme Toggle Button */
.ruts-theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.78rem;
  font-weight: 600;
  background-color: rgba(255, 255, 255, 0.12);
  color: #fef3c7;
  border: 1px solid rgba(251, 191, 36, 0.45);
  cursor: pointer;
  transition: all 0.2s ease;
}

.ruts-theme-toggle:hover {
  background-color: rgba(251, 191, 36, 0.22);
  color: #ffffff;
}

/* พื้นหลังหน้าเข้าสู่ระบบ / Login Gradient */
.ruts-login-bg {
  background: radial-gradient(circle at top right, #1e3a8a 0%, #0c2340 55%, #061527 100%);
  min-height: 100vh;
}

/* การ์ดแสดงผลข้อมูล / RUTS Cards */
.ruts-card {
  background: var(--ruts-card-bg);
  color: var(--ruts-text-main);
  border-radius: 0.875rem;
  border: 1px solid var(--ruts-border);
  box-shadow: 0 4px 15px rgba(15, 23, 42, 0.06);
  transition: box-shadow 0.2s ease, transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.ruts-card-hover:hover {
  box-shadow: 0 10px 25px rgba(12, 35, 64, 0.12);
  transform: translateY(-2px);
}

/* แบนเนอร์ส่วนหัวของแต่ละหน้า (บังคับพื้นหลังสีน้ำเงินเข้มและตัวอักษรสีขาวชัดเจนเสมอ) / Hero Banner */
.ruts-hero-banner,
.ruts-card.ruts-hero-banner {
  background: linear-gradient(135deg, #091d36 0%, #0c2340 50%, #1e3a8a 100%) !important;
  border: 1px solid rgba(212, 175, 55, 0.35) !important;
  border-left: 6px solid var(--ruts-gold-500) !important;
  color: #ffffff !important;
  box-shadow: 0 8px 24px rgba(12, 35, 64, 0.22) !important;
}

.ruts-hero-banner h1,
.ruts-hero-banner h2,
.ruts-hero-banner h3 {
  color: #ffffff !important;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.ruts-hero-banner p {
  color: #e2e8f0 !important;
}

.ruts-card-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--ruts-border);
  background: var(--ruts-card-header-bg);
  border-top-left-radius: 0.875rem;
  border-top-right-radius: 0.875rem;
}

.ruts-stat-card {
  background: var(--ruts-card-bg);
  color: var(--ruts-text-main);
  border-radius: 0.875rem;
  border: 1px solid var(--ruts-border);
  border-top: 4px solid var(--ruts-navy-700);
  padding: 1.25rem;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.05);
}

html.ruts-night-mode .ruts-stat-card {
  border-top-color: #3b82f6;
}

.ruts-stat-card-gold {
  border-top-color: var(--ruts-gold-500) !important;
}

/* ปุ่มกดมาตรฐาน มทร.ศรีวิชัย / RUTS Action Buttons */
.ruts-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1.15rem;
  border-radius: 0.6rem;
  font-weight: 500;
  font-size: 0.875rem;
  transition: all 0.18s ease;
  cursor: pointer;
  border: 1px solid transparent;
  line-height: 1.25rem;
}

.ruts-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.ruts-btn-primary {
  background: linear-gradient(135deg, var(--ruts-navy-900) 0%, var(--ruts-navy-700) 100%);
  color: #ffffff !important;
  box-shadow: 0 2px 8px rgba(12, 35, 64, 0.25);
}

.ruts-btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--ruts-navy-800) 0%, #1d4ed8 100%);
  box-shadow: 0 4px 12px rgba(12, 35, 64, 0.35);
}

.ruts-btn-gold {
  background: linear-gradient(135deg, var(--ruts-gold-500) 0%, var(--ruts-gold-400) 100%);
  color: var(--ruts-navy-950) !important;
  font-weight: 600;
  box-shadow: 0 3px 10px rgba(212, 175, 55, 0.35);
}

.ruts-btn-gold:hover:not(:disabled) {
  background: linear-gradient(135deg, #e5c148 0%, #fbbf24 100%);
  box-shadow: 0 5px 15px rgba(212, 175, 55, 0.5);
}

.ruts-btn-outline {
  background: var(--ruts-card-bg);
  color: var(--ruts-text-main);
  border-color: var(--ruts-border);
}

.ruts-btn-outline:hover:not(:disabled) {
  background: var(--ruts-card-header-bg);
  border-color: var(--ruts-gold-500);
}

.ruts-btn-success {
  background: linear-gradient(135deg, #059669 0%, #10b981 100%);
  color: #ffffff !important;
}

.ruts-btn-danger {
  background: linear-gradient(135deg, #dc2626 0%, #ef4444 100%);
  color: #ffffff !important;
}

.ruts-btn-sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.78rem;
  border-radius: 0.45rem;
}

/* ป้ายกำกับสถานะการสแกนและสิทธิ์ / RUTS Status & Role Badges */
.ruts-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.22rem 0.65rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
}

.ruts-badge-ontime {
  background-color: #dcfce7;
  color: #14532d !important;
  border: 1px solid #86efac;
}

.ruts-badge-late {
  background-color: #fef3c7;
  color: #78350f !important;
  border: 1px solid #fcd34d;
}

.ruts-badge-duplicate {
  background-color: #dbeafe;
  color: #1e3a8a !important;
  border: 1px solid #93c5fd;
}

.ruts-badge-rejected,
.ruts-badge-outside,
.ruts-badge-invalid {
  background-color: #fee2e2;
  color: #7f1d1d !important;
  border: 1px solid #fca5a5;
}

.ruts-badge-member {
  background-color: #e0e7ff;
  color: #1e3a8a !important;
  border: 1px solid #a5b4fc;
}

.ruts-badge-walkin {
  background-color: #fae8ff;
  color: #701a75 !important;
  border: 1px solid #f0abfc;
}

.ruts-badge-channel {
  background-color: #e2e8f0;
  color: #0f172a !important;
  border: 1px solid #94a3b8;
}

/* ฟอร์มและอินพุต / Form Controls */
.ruts-input,
.ruts-select,
.ruts-textarea {
  width: 100%;
  padding: 0.55rem 0.85rem;
  border-radius: 0.55rem;
  border: 1px solid var(--ruts-border);
  background-color: var(--ruts-card-bg);
  color: var(--ruts-text-main);
  font-size: 0.875rem;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.ruts-input::placeholder,
.ruts-textarea::placeholder {
  color: #64748b;
}

html.ruts-night-mode .ruts-input,
html.ruts-night-mode .ruts-select,
html.ruts-night-mode .ruts-textarea {
  background-color: #0b1324;
  border-color: #334155;
  color: #f8fafc;
}

html.ruts-night-mode .ruts-input::placeholder,
html.ruts-night-mode .ruts-textarea::placeholder {
  color: #94a3b8;
}

.ruts-input:focus,
.ruts-select:focus,
.ruts-textarea:focus {
  outline: none;
  border-color: #2563eb;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

.ruts-label {
  display: block;
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--ruts-text-main);
  margin-bottom: 0.35rem;
}

/* ตารางข้อมูล / RUTS Data Tables */
.ruts-table-wrap {
  width: 100%;
  overflow-x: auto;
  border-radius: 0.75rem;
  border: 1px solid var(--ruts-border);
}

.ruts-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.85rem;
  color: var(--ruts-text-main);
}

.ruts-table thead th {
  background-color: var(--ruts-card-header-bg);
  color: var(--ruts-text-main);
  font-weight: 700;
  padding: 0.75rem 1rem;
  border-bottom: 2px solid var(--ruts-border);
  white-space: nowrap;
}

.ruts-table tbody td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--ruts-border);
  vertical-align: middle;
  color: var(--ruts-text-main);
}

.ruts-table tbody tr:hover {
  background-color: rgba(59, 130, 246, 0.06);
}

/* กล่องกล้องสแกน QR Code / Camera QR Scanner Box */
.ruts-scanner-box {
  position: relative;
  max-width: 480px;
  margin: 0 auto;
  border-radius: 1rem;
  overflow: hidden;
  border: 3px solid var(--ruts-gold-500);
  background: #000000;
  box-shadow: 0 10px 30px rgba(12, 35, 64, 0.25);
}

.ruts-scanner-laser {
  position: absolute;
  left: 8%;
  right: 8%;
  height: 2px;
  background: linear-gradient(90deg, transparent, #f59e0b, #ef4444, #f59e0b, transparent);
  box-shadow: 0 0 10px #f59e0b;
  animation: rutsScanLaser 2.2s infinite ease-in-out;
  pointer-events: none;
  z-index: 10;
}

@keyframes rutsScanLaser {
  0% { top: 15%; opacity: 0.8; }
  50% { top: 82%; opacity: 1; }
  100% { top: 15%; opacity: 0.8; }
}

/* หน้าจอโปรเจคเตอร์แสดง QR Code สด / Live Projector View */
.ruts-live-projector {
  background: radial-gradient(circle at center, #15325b 0%, #0c2340 65%, #061527 100%) !important;
  min-height: 100vh;
  color: #ffffff !important;
}

.ruts-qr-box {
  background: #ffffff !important;
  padding: 1.5rem;
  border-radius: 1.25rem;
  border: 5px solid var(--ruts-gold-500);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.45);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* หน้าต่าง Modal / RUTS Modal Dialog */
.ruts-modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(6, 21, 39, 0.72);
  backdrop-filter: blur(3px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 50;
}

.ruts-modal-backdrop.hidden {
  display: none !important;
}

.ruts-modal-box {
  background: var(--ruts-card-bg);
  color: var(--ruts-text-main);
  border-radius: 1rem;
  width: 100%;
  border: 1px solid var(--ruts-border);
  border-top: 5px solid var(--ruts-gold-500);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
  overflow: hidden;
}

/* กล่องแจ้งเตือน / Alert Boxes */
.ruts-alert {
  padding: 0.875rem 1.15rem;
  border-radius: 0.75rem;
  font-size: 0.875rem;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.ruts-alert-info {
  background-color: #eff6ff;
  border: 1px solid #93c5fd;
  color: #1e3a8a;
}

.ruts-alert-warning {
  background-color: #fffbeb;
  border: 1px solid #fcd34d;
  color: #78350f;
}

.ruts-alert-success {
  background-color: #f0fdf4;
  border: 1px solid #86efac;
  color: #14532d;
}

.ruts-alert-danger {
  background-color: #fef2f2;
  border: 1px solid #fca5a5;
  color: #7f1d1d;
}

/* ============================================================================
 * การปรับสีอัตโนมัติในโหมดกลางวันและโหมดกลางคืน (Day & Night Contrast Overrides)
 * ============================================================================ */

/* ในโหมดกลางวัน ปรับสีข้อความสีเทาจางให้อ่านชัดเจนขึ้น / Crisp dark text in Day Mode */
html:not(.ruts-night-mode) .ruts-card:not(.ruts-hero-banner) .text-slate-500,
html:not(.ruts-night-mode) .ruts-stat-card .text-slate-500 {
  color: #334155 !important;
}

html:not(.ruts-night-mode) .ruts-card:not(.ruts-hero-banner) .text-slate-400 {
  color: #475569 !important;
}

/* ในโหมดกลางคืน ปรับพื้นหลังและสีข้อความของ Tailwind ให้อ่านง่ายสบายตา / Night Mode Overrides */
html.ruts-night-mode .ruts-card:not(.ruts-hero-banner) .text-slate-900,
html.ruts-night-mode .ruts-card:not(.ruts-hero-banner) .text-slate-800,
html.ruts-night-mode .ruts-stat-card .text-slate-900,
html.ruts-night-mode .ruts-stat-card .text-slate-800,
html.ruts-night-mode .ruts-modal-box .text-slate-900,
html.ruts-night-mode .ruts-modal-box .text-slate-800 {
  color: #f8fafc !important;
}

html.ruts-night-mode .ruts-card:not(.ruts-hero-banner) .text-slate-700,
html.ruts-night-mode .ruts-card:not(.ruts-hero-banner) .text-slate-600,
html.ruts-night-mode .ruts-stat-card .text-slate-700,
html.ruts-night-mode .ruts-stat-card .text-slate-600,
html.ruts-night-mode .ruts-modal-box .text-slate-700,
html.ruts-night-mode .ruts-modal-box .text-slate-600 {
  color: #cbd5e1 !important;
}

html.ruts-night-mode .ruts-card:not(.ruts-hero-banner) .text-slate-500,
html.ruts-night-mode .ruts-card:not(.ruts-hero-banner) .text-slate-400,
html.ruts-night-mode .ruts-stat-card .text-slate-500 {
  color: #94a3b8 !important;
}

html.ruts-night-mode .ruts-card:not(.ruts-hero-banner) .bg-white,
html.ruts-night-mode .ruts-modal-box .bg-white {
  background-color: #111c33 !important;
}

html.ruts-night-mode .ruts-card:not(.ruts-hero-banner) .bg-slate-50,
html.ruts-night-mode .ruts-card:not(.ruts-hero-banner) .bg-slate-100,
html.ruts-night-mode .ruts-modal-box .bg-slate-50 {
  background-color: #0c1629 !important;
}

html.ruts-night-mode .ruts-card:not(.ruts-hero-banner) .border-slate-100,
html.ruts-night-mode .ruts-card:not(.ruts-hero-banner) .border-slate-200,
html.ruts-night-mode .ruts-card:not(.ruts-hero-banner) .border-slate-300,
html.ruts-night-mode .ruts-modal-box .border-slate-200 {
  border-color: #233554 !important;
}

html.ruts-night-mode .ruts-card:not(.ruts-hero-banner) .bg-amber-50\/60,
html.ruts-night-mode .ruts-card:not(.ruts-hero-banner) .bg-amber-50 {
  background-color: rgba(245, 158, 11, 0.12) !important;
  color: #fde68a !important;
}

html.ruts-night-mode .ruts-card:not(.ruts-hero-banner) .bg-blue-50,
html.ruts-night-mode .ruts-card:not(.ruts-hero-banner) .bg-indigo-50 {
  background-color: rgba(59, 130, 246, 0.15) !important;
}

html.ruts-night-mode .ruts-alert-info {
  background-color: rgba(30, 58, 138, 0.35);
  border-color: #3b82f6;
  color: #dbeafe;
}

html.ruts-night-mode .ruts-alert-warning {
  background-color: rgba(146, 64, 14, 0.35);
  border-color: #f59e0b;
  color: #fef3c7;
}

html.ruts-night-mode .ruts-alert-success {
  background-color: rgba(20, 83, 45, 0.4);
  border-color: #22c55e;
  color: #dcfce7;
}

html.ruts-night-mode .ruts-alert-danger {
  background-color: rgba(127, 29, 29, 0.4);
  border-color: #ef4444;
  color: #fee2e2;
}