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

:root {
  --bg-color: #f8f9fa;
  --card-bg: #ffffff;
  --text-color: #212529;
  --heading-color: #000000;
  --subtle-text: #6c757d;
  --border-color: #dee2e6;
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.05), 0 1px 3px rgba(0, 0, 0, 0.05);
  --accent-blue-start: #007aff;
  --accent-blue-end: #00c6ff;
  --accent-purple-start: #5856d6;
  --accent-purple-end: #c659ff;
}

html {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  background-color: var(--bg-color);
  color: var(--text-color);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  padding: 3rem 2rem;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.container.loaded {
  opacity: 1;
  transform: translateY(0);
}

.header {
  text-align: center;
  margin-bottom: 3rem;
}

.header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--heading-color);
  margin: 0;
}

.header p {
  font-size: 1.1rem;
  color: var(--subtle-text);
  margin-top: 0.5rem;
}

.header-with-button {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 3rem;
}

.btn-logout {
  background: var(--card-bg);
  color: var(--subtle-text);
  border: 1px solid var(--border-color);
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-logout:hover {
  border-color: var(--text-color);
  color: var(--text-color);
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.card {
  background: var(--card-bg);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 15px rgba(0,0,0,0.07), 0 4px 6px rgba(0,0,0,0.06);
}

.card-title {
  font-size: 1rem;
  font-weight: 500;
  color: var(--subtle-text);
  margin: 0 0 0.5rem 0;
}

.card-value {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--heading-color);
  line-height: 1.2;
}

.chart-container {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 16px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
  margin-bottom: 3rem;
}

.chart-container h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 1.5rem 0;
  color: var(--heading-color);
}

#loader {
  text-align: center;
  padding: 4rem;
  font-size: 1.2rem;
  color: var(--subtle-text);
}

/* Index Page Styles */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes subtlePulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.8; }
}

:root {
  --primary-color: #007AFF;
  --danger-color: #FF3B30;
  --background-color: #FBFBFD;
  --card-background: #FFFFFF;
  --text-primary: #1D1D1F;
  --text-secondary: #86868B;
  --border-color: #D2D2D7;
  --input-background: #F0F0F0;
  --hover-color: #F5F5F7;
  --shadow-color: rgba(0,0,0,0.08);
  --focus-ring: rgba(0, 122, 255, 0.25);
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  margin: 0;
  background: linear-gradient(135deg, #FBFBFD 0%, #ECECF2 100%);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  letter-spacing: -0.01em;
}

.container {
  width: 100%;
  max-width: 900px;
  margin: 2em;
  padding: 3em;
  background: var(--card-background);
  border-radius: 18px;
  box-shadow: 0 12px 48px var(--shadow-color);
  border: 1px solid var(--border-color);
  animation: fadeIn 0.5s ease-out;
}

h1, h2 {
  color: var(--text-primary);
  font-weight: 700;
}

h1 { font-size: 2.5em; margin-bottom: 0.5em; text-align: center; }
h2 { font-size: 1.4em; margin-top: 2.5em; margin-bottom: 1.5em; color: var(--text-secondary); font-weight: 600; }

.btn-secondary {
  background-color: transparent;
  color: var(--primary-color);
  border: 1px solid var(--primary-color);
  padding: 10px 18px;
  font-size: 0.9em;
  font-weight: 600;
  text-decoration: none;
}

.btn-secondary:hover {
  background-color: rgba(0, 122, 255, 0.05);
  transform: translateY(-1px);
}

.table-section {
  margin-top: 2.5em;
}

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 16px var(--shadow-color);
  border: 1px solid var(--border-color);
}

th, td {
  padding: 16px 20px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
}

th {
  background-color: var(--hover-color);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.75em;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-bottom: 2px solid var(--border-color);
}

tbody tr {
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

tbody tr:hover {
  background-color: var(--hover-color);
  transform: scale(1.005);
  box-shadow: 0 2px 8px var(--shadow-color);
}

tr:last-child td { border-bottom: none; }

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1.5fr auto;
  gap: 1.2em;
  align-items: end;
}

input, select, button {
  padding: 14px 18px;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  font-size: 1em;
  background-color: var(--input-background);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  -webkit-appearance: none;
  font-family: inherit;
}

input:focus, select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 4px var(--focus-ring);
  background-color: var(--card-background);
  transform: translateY(-1px);
}

button {
  cursor: pointer;
  color: #fff;
  border: none;
  font-weight: 600;
  border-radius: 12px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary {
  background-color: var(--primary-color);
  box-shadow: 0 4px 12px rgba(0, 122, 255, 0.3);
}

.btn-primary:hover {
  background-color: #0051D5;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 122, 255, 0.4);
}

.btn-danger {
  background-color: var(--danger-color);
  padding: 10px 16px;
  font-size: 0.9em;
  box-shadow: 0 2px 8px rgba(255, 59, 48, 0.3);
}

.btn-danger:hover {
  background-color: #D70015;
  transform: translateY(-1px);
}

#login-view { text-align: center; }
#admin-view { display: none; }
.hidden { display: none; }

#admin-secret {
  width: calc(100% - 36px);
  margin-bottom: 1.5em;
  text-align: center;
  font-size: 1.1em;
}

.message {
  padding: 1.2em 1.5em;
  margin-bottom: 1.5em;
  border-radius: 12px;
  font-size: 0.95em;
  font-weight: 500;
  animation: fadeIn 0.3s ease-out;
}

.message-error { background-color: #FFEEE8; color: #D70015; }
.message-success { background-color: #E8F5E9; color: #2E7D32; }

.footer-link {
  text-align: center;
  margin-top: 3em;
  font-size: 0.9em;
}

.footer-link a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-link a:hover {
  color: var(--primary-color);
}

/* Guide Page Styles */
:root {
  --primary-color: #007AFF;
  --background-color: #FBFBFD;
  --card-background: #FFFFFF;
  --text-primary: #1D1D1F;
  --text-secondary: #86868B;
  --border-color: #D2D2D7;
  --code-background: #F5F5F7;
  --info-box-background: #F5F5F7;
  --shadow-color: rgba(0,0,0,0.08);
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  margin: 0;
  background: linear-gradient(135deg, #FBFBFD 0%, #ECECF2 100%);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 2em 1em;
  box-sizing: border-box;
  line-height: 1.6;
}

.container {
  max-width: 800px;
  width: 100%;
  padding: 3em;
  background: var(--card-background);
  border-radius: 18px;
  box-shadow: 0 12px 48px var(--shadow-color);
  border: 1px solid var(--border-color);
  animation: fadeIn 0.5s ease-out;
}

h1, h2 {
  color: var(--text-primary);
  font-weight: 700;
}

h1 { font-size: 2.5em; margin-bottom: 0.5em; text-align: center; }
h2 { font-size: 1.4em; margin-top: 2em; margin-bottom: 1em; color: var(--text-secondary); font-weight: 600; }

code {
  background-color: var(--code-background);
  padding: 3px 8px;
  border-radius: 6px;
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;
  font-size: 0.9em;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.info-box {
  margin-top: 2em;
  padding: 1.8em;
  background-color: var(--info-box-background);
  border-radius: 14px;
  border: 1px solid var(--border-color);
  transition: box-shadow 0.3s ease;
}

.info-box:hover {
  box-shadow: 0 4px 16px var(--shadow-color);
}

.info-box h2 {
  margin-top: 0;
  margin-bottom: 1em;
  color: var(--primary-color);
}

.info-box p { margin: 1em 0; }
.info-box ul { padding-left: 1.5em; }
.info-box li { margin-bottom: 0.5em; }

.info-box .example-block {
  padding: 1.2em;
  background-color: var(--card-background);
  border-radius: 10px;
  margin-top: 1.2em;
  border: 1px solid var(--border-color);
}

.note {
  font-size: 0.95em;
  color: var(--text-secondary);
  margin-top: 1.5em;
  line-height: 1.7;
}

a {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

a:hover {
  color: #0051D5;
  text-decoration: underline;
}

.back-link {
  text-align: center;
  margin-top: 3em;
  padding-top: 2em;
  border-top: 1px solid var(--border-color);
}