/* ==========================
   VARIABLES
========================== */
:root {
  /* Colors */
  --color-bg: light-dark(#f9f9f9, #181a1b);
  --color-bg-hero: light-dark(#e3f0ff, #23272a);
  --color-card-bg: light-dark(#fff, #23272a);
  --color-text: light-dark(#222, #f3f3f3);
  --color-text-secondary: light-dark(#444, #c7c7c7);
  --color-primary: light-dark(#0056b3, #4ea1ff);
  --color-primary-dark: light-dark(#003d80, #0056b3);
  --color-title-accent: light-dark(#e3f0ff, #2a3a4a);
  --color-shadow: light-dark(0 2px 12px rgba(0,0,0,0.06), 0 2px 12px rgba(0,0,0,0.3));
  --color-shadow-hover: light-dark(0 4px 16px rgba(0,86,179,0.08), 0 4px 16px rgba(78,161,255,0.12));
  --color-grid-item: light-dark(#888, #aaa);
  --input-background: light-dark(#f9f9f9, #23272a);
  --white: light-dark(#fff, #23272a);

  /* Fonts & sizing */
  --radius-main: 1.2em;
  --radius-small: 0.5em;
  --padding-card: 1.5em 1.3em 1.2em 1.3em;
}

/* ==========================
   BASE STYLES
========================== */
body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: 'Inter', sans-serif;
}

h1 {
  color: var(--color-primary);
  font-size: 2.1em;
  font-weight: 800;
  margin-bottom: 1.2em;
  letter-spacing: 0.01em;
  text-align: center;
}

/* ==========================
   CONTAINERS
========================== */
.container-main-content {
  background: var(--color-card-bg);
  border-radius: var(--radius-main);
  box-shadow: var(--color-shadow);
  padding: 2em 1em;
}

.container-grid {
  transition: display 0.2s;
}

.hide-cards {
  display: none !important;
}

/* ==========================
   BUTTONS
========================== */
.button {
  background-color: var(--color-primary);
  color: var(--white);
  padding: 0.7em 1.5em;
  border: none;
  border-radius: 2em;
  cursor: pointer;
  font-size: 1.05em;
  font-weight: 600;
  transition: background 0.2s, box-shadow 0.2s, filter 0.2s;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.button:hover {
  background-color: var(--color-primary-dark);
  box-shadow: var(--color-shadow-hover);
  filter: brightness(1.08);
}

/* ==========================
   FORMS & INPUTS
========================== */
.search-form {
  display: flex;
  flex-direction: column;
  gap: 1em;
  margin-bottom: 2em;
  position: relative;
}

.search-form input[type="text"] {
  padding: 0.6em 1em;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-small);
  background: var(--input-background);
  font-size: 1em;
  color: var(--color-text);
  transition: border 0.2s;
}

.invalid-date {
  border-color: red !important;
}

.date-error {
  color: red;
  font-size: 0.98em;
  display: none;
  margin: -0.5em 0 0.5em 0;
}

.date-range {
  display: flex;
  gap: 1em;
  align-items: center;
}

/* ==========================
   FILTERS
========================== */
.filters {
  display: flex;
  gap: 1em;
  flex-wrap: wrap;
  margin-bottom: 0.5em;
}

.filter {
  padding: 0.7em 1.2em;
  background: var(--color-primary);
  border-radius: 2em;
  color: var(--white);
  font-size: 1em;
  display: flex;
  align-items: center;
  gap: 0.7em;
}

/* ==========================
   SUGGESTIONS
========================== */
.suggestions {
  background: var(--input-background);
  width: 100%;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-small);
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  position: absolute;
  margin-top: -10px;
  z-index: 10;
  display: none;
}

.suggestions.show {
  display: block;
}

.suggestion-item {
  padding: 0.7em 1em;
  border-radius: 0.4em;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

.suggestion-item:hover {
  background: var(--color-primary);
  color: var(--white);
}

/* ==========================
   VIEW TOGGLE
========================== */
.view-toggle-group {
  display: flex;
  gap: 0.5em;
  justify-content: flex-end;
  margin-bottom: 1em;
}

.view-toggle-btn {
  background: var(--color-title-accent);
  color: var(--color-primary);
  border: none;
  border-radius: var(--radius-small);
  padding: 0.4em 1.2em;
  font-size: 1em;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  display: flex;
  align-items: center;
  gap: 0.3em;
}

.view-toggle-btn.active,
.view-toggle-btn:hover {
  background: var(--color-primary);
  color: var(--white);
}

/* ==========================
   DEMO CARDS
========================== */
.demo-card {
  background: var(--color-card-bg);
  border-radius: 1.1em;
  padding: var(--padding-card);
  box-shadow: 0 2px 16px rgba(0,0,0,0.08), 0 1.5px 4px rgba(0,86,179,0.04);
  border: 1.5px solid var(--color-title-accent);
  display: flex;
  flex-direction: column;
  gap: 0.7em;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: box-shadow 0.18s, transform 0.18s, border 0.18s;
}

.demo-card:hover, .demo-card:focus {
  box-shadow: 0 6px 24px rgba(0,86,179,0.13), 0 2px 8px rgba(0,0,0,0.08);
  border-color: var(--color-primary);
  transform: translateY(-2px) scale(1.012);
  z-index: 2;
}

.demo-card-title {
  font-size: 1.25em;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 0.2em;
  display: flex;
  align-items: center;
  gap: 0.5em;
}

.demo-card-date-time,
.demo-card-location-row {
  font-size: 1.05em;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: 1.2em;
}

.demo-card-date-time i,
.demo-card-location-row i {
  color: var(--color-primary);
  margin-right: 0.3em;
}

.demo-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4em;
  margin-top: 0.2em;
}

.demo-card-tag,
.demo-table-tag {
  background: var(--color-title-accent);
  color: var(--color-primary);
  border-radius: 0.5em;
  padding: 0.13em 0.8em;
  font-size: 1em;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.18s, color 0.18s;
  border: none;
}

.demo-card-tag:hover,
.demo-table-tag:hover {
  background: var(--color-primary);
  color: var(--white);
}

.demo-card-actions {
  margin-top: 0.7em;
  display: flex;
  gap: 0.7em;
  align-items: center;
}

.demo-card-action-btn {
  background: var(--color-title-accent);
  color: var(--color-primary);
  border: none;
  border-radius: 0.5em;
  padding: 0.3em 1em;
  font-size: 1em;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.4em;
  transition: background 0.18s, color 0.18s;
}

.demo-card-action-btn:hover,
.demo-card-action-btn:focus {
  background: var(--color-primary);
  color: #fff;
}

.demo-card-badge {
  position: absolute;
  top: 1.1em;
  right: 1.1em;
  background: var(--color-primary);
  color: #fff;
  font-size: 0.95em;
  font-weight: 700;
  border-radius: 1em;
  padding: 0.2em 1em;
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
  letter-spacing: 0.02em;
}

.demo-card-badge-today { background: #ff6b6b; }
.demo-card-badge-trending { background: #ffb74d; }
.demo-card-badge-recommended { background: #6ab04c; }

.demo-card-image {
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: 12px;
  overflow: hidden;
  position: relative;
}

.demo-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.demo-card-image::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 12px;
  background: linear-gradient(to top, rgba(0,0,0,0.3), transparent);
}

/* ==========================
   TABLES
========================== */
.demo-table-container {
  width: 100%;
  overflow-x: auto;
  margin-bottom: 2em;
}

.demo-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-card-bg);
  color: var(--color-text);
  border-radius: 1em;
  box-shadow: 0 1px 8px rgba(0,0,0,0.04);
  font-size: 1em;
}

.demo-table th,
.demo-table td {
  padding: 1em 0.7em;
  text-align: left;
  border-bottom: 1px solid var(--color-title-accent);
  vertical-align: middle;
}

.demo-table th {
  background: var(--color-title-accent);
  color: var(--color-primary);
  font-size: 1.08em;
  font-weight: 700;
  letter-spacing: 0.01em;
}

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

/* ==========================
   MEDIA QUERIES
========================== */
@media (max-width: 900px) {
  .demo-table th, .demo-table td { padding: 0.7em 0.3em; font-size: 0.98em; }
}

@media (max-width: 600px) {
  .demo-table th, .demo-table td { padding: 0.5em 0.2em; font-size: 0.95em; }
  .demo-table { font-size: 0.95em; }

  .demo-card { padding: 1em 0.7em; }
  .demo-card-title { font-size: 1.08em; }
  .demo-card-date-time, .demo-card-location-row { font-size: 0.98em; }

  .view-toggle-group { justify-content: center; }
  .container-main-content { padding: 1em 0.5em; }
  h1 { font-size: 1.3em; }
}