/* ============================================
   Unix Timestamp - Layout & Styles

   Breakpoints:
     Mobile:    < 768px   (single column)
     Desktop:   >= 768px  (live clock full width, 2 columns below)
     Wide:      >= 1400px (+ ad sidebars)
   ============================================ */

/* ======================
   BASE LAYOUT
   ====================== */

html {
  background-color: #0d9488;
}

body {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
  background: linear-gradient(135deg, #0d9488 0%, #0f766e 100%);
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 40% 20%, rgba(255, 255, 255, 0.03) 0%, transparent 50%);
  animation: float 20s ease-in-out infinite;
  pointer-events: none;
  z-index: 0;
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(5deg); }
}

/* ======================
   HEADER
   ====================== */

.header {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  padding: var(--space-3) 0;
  flex-shrink: 0;
  position: relative;
  z-index: 10;
}

.header-content {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.logo-link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: white;
  transition: all var(--transition-base);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(5px);
  flex-shrink: 0;
}

.logo-link:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.logo-text {
  color: white;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.logo-dot {
  color: #fbbf24;
  animation: pulse-logo 2s ease-in-out infinite;
}

@keyframes pulse-logo {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.2); }
}

.title {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  color: rgba(255, 255, 255, 0.9);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}

/* ======================
   PAGE BODY
   ====================== */

.page-body {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: 1fr;
  grid-template-areas: "content";
  overflow: hidden;
  position: relative;
  z-index: 1;
}

/* ======================
   AD SIDEBARS
   ====================== */

.ad-sidebar {
  display: none;
  align-self: start;
  padding: var(--space-4) 0;
}

.ad-sidebar-left { grid-area: ad-left; justify-self: center; }
.ad-sidebar-right { grid-area: ad-right; justify-self: center; }

.ad-sticky {
  position: sticky;
  top: var(--space-4);
}

.ad-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  width: 160px;
  height: 600px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 2px dashed rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-md);
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  line-height: 1.4;
}

/* ======================
   MAIN CONTENT
   ====================== */

.main-content {
  grid-area: content;
  overflow-y: auto;
  padding: var(--space-4) 0 var(--space-6);
}

/* ======================
   TOOLS CONTAINER
   ====================== */

.tools-container {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-areas:
    "live"
    "to-date"
    "to-ts";
  gap: var(--space-4);
}

.tools-container .info-related-row {
  grid-column: 1 / -1;
}

@media (min-width: 768px) {
  .tools-container {
    grid-template-columns: 1fr 1fr;
    grid-template-areas:
      "live to-date"
      "live to-ts";
  }
}

#card-live    { grid-area: live; }
#card-to-date { grid-area: to-date; }
#card-to-ts   { grid-area: to-ts; }

/* ======================
   TOOL CARDS
   ====================== */

.tool-card {
  background: rgba(255, 255, 255, 0.95);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.3);
  overflow: hidden;
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.3),
    0 0 0 1px rgba(255, 255, 255, 0.1);
  transition: box-shadow var(--transition-base);
}

.tool-card:hover {
  box-shadow:
    0 30px 80px rgba(0, 0, 0, 0.4),
    0 0 0 1px rgba(255, 255, 255, 0.2);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) var(--space-4);
  background: linear-gradient(135deg, rgba(13, 148, 136, 0.1), rgba(15, 118, 110, 0.1));
  border-bottom: 1px solid var(--color-border);
}

.card-title {
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--color-gray-500);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ======================
   LIVE INDICATOR
   ====================== */

.live-indicator {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: #10b981;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.live-dot {
  width: 7px;
  height: 7px;
  background: #10b981;
  border-radius: 50%;
  animation: pulse-dot 1.5s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.75); }
}

/* ======================
   CARD INPUT ROW
   ====================== */

.card-input-row {
  display: flex;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  align-items: center;
}

.ts-input,
.date-input {
  flex: 1;
  min-width: 0;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  background: var(--color-surface);
  color: var(--color-text);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.ts-input {
  font-family: var(--font-mono);
}

.ts-input:focus,
.date-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.card-input-row .btn-sm {
  flex-shrink: 0;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-xs);
}

/* ======================
   CARD ERROR
   ====================== */

.card-error {
  padding: var(--space-3) var(--space-4);
  color: var(--color-error);
  font-size: var(--text-sm);
  border-bottom: 1px solid var(--color-border);
}

/* ======================
   RESULT ROWS
   ====================== */

.result-rows {
  display: flex;
  flex-direction: column;
}

.result-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-4);
  border-top: 1px solid var(--color-border);
  min-height: 36px;
}

.result-row:first-child {
  border-top: none;
}

.result-label {
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--color-gray-500);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  min-width: 88px;
  flex-shrink: 0;
}

.result-value {
  flex: 1;
  font-size: var(--text-sm);
  color: var(--color-gray-900);
  word-break: break-all;
  line-height: 1.4;
}

.result-value.mono {
  font-family: var(--font-mono);
}

/* ======================
   COPY VALUE BUTTON
   ====================== */

.copy-val-btn {
  flex-shrink: 0;
  padding: var(--space-1) var(--space-2);
  background: rgba(13, 148, 136, 0.1);
  border: none;
  border-radius: var(--radius-sm);
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  cursor: pointer;
  transition: background var(--transition-base);
  white-space: nowrap;
  line-height: 1.4;
}

.copy-val-btn:hover {
  background: rgba(13, 148, 136, 0.2);
}

/* ======================
   STATUS BAR
   ====================== */

.status-bar {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding: var(--space-2) 0;
  flex-shrink: 0;
  position: relative;
  z-index: 10;
}

.status-content {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  font-size: var(--text-sm);
}

.status-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.status-label {
  color: rgba(255, 255, 255, 0.8);
  font-weight: var(--font-medium);
}

#tz-display,
#utc-offset {
  color: white;
  font-weight: var(--font-semibold);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
}

/* ============================================
   RESPONSIVE: Wide Desktop (>= 1400px)
   ============================================ */

@media (min-width: 1400px) {
  .page-body {
    grid-template-columns: 200px 1fr 200px;
    grid-template-areas: "ad-left content ad-right";
  }

  .ad-sidebar {
    display: block;
  }
}

/* ============================================
   RESPONSIVE: Mobile (< 768px)
   ============================================ */

@media (max-width: 767px) {
  .header {
    padding: var(--space-2) 0;
  }

  .title {
    font-size: var(--text-sm);
  }

  .logo-link {
    font-size: var(--text-sm);
    padding: var(--space-1) var(--space-2);
  }

  .main-content {
    padding: var(--space-3) 0 var(--space-4);
  }

  .tools-container {
    gap: var(--space-3);
  }

  .card-header {
    padding: var(--space-3) var(--space-4);
  }

  .result-label {
    min-width: 76px;
  }

  .status-content {
    gap: var(--space-3);
    font-size: var(--text-xs);
  }

  #tz-display,
  #utc-offset {
    font-size: var(--text-xs);
  }
}

/* ============================================
   DARK MODE
   ============================================ */

html[data-theme="dark"] {
  background-color: #0f172a;
}

[data-theme="dark"] body {
  background: #0f172a;
}

[data-theme="dark"] .header {
  background: rgba(0, 0, 0, 0.3);
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .tool-card {
  background: rgba(15, 23, 42, 0.95);
  border-color: rgba(255, 255, 255, 0.1);
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .tool-card:hover {
  box-shadow:
    0 30px 80px rgba(0, 0, 0, 0.6),
    0 0 0 1px rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .card-header {
  background: linear-gradient(135deg, rgba(13, 148, 136, 0.15), rgba(15, 118, 110, 0.15));
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .card-title {
  color: var(--color-gray-100);
}

[data-theme="dark"] .card-input-row {
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .ts-input,
[data-theme="dark"] .date-input {
  background: var(--color-gray-800);
  color: var(--color-gray-100);
  border-color: var(--color-gray-600);
}

[data-theme="dark"] .date-input {
  color-scheme: dark;
}

[data-theme="dark"] .result-row {
  border-top-color: rgba(255, 255, 255, 0.08);
}

[data-theme="dark"] .result-label {
  color: var(--color-gray-400);
}

[data-theme="dark"] .result-value {
  color: var(--color-gray-100);
}

[data-theme="dark"] .copy-val-btn {
  background: rgba(13, 148, 136, 0.2);
  color: var(--color-primary-light);
}

[data-theme="dark"] .copy-val-btn:hover {
  background: rgba(13, 148, 136, 0.35);
}

[data-theme="dark"] .card-error {
  border-bottom-color: rgba(255, 255, 255, 0.08);
}

[data-theme="dark"] .status-bar {
  background: rgba(0, 0, 0, 0.3);
  border-top-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .ad-placeholder {
  background: rgba(0, 0, 0, 0.2);
  border-color: rgba(255, 255, 255, 0.15);
}

/* ── About/Related fix: allow scrolling past tool UI ─────────────────────── */
.main-content { overflow-y: auto; }

/* ── Compact header ─────────────────────────────────────────────────────── */
.header { padding: var(--space-1) 0; }
.logo-link { font-size: var(--text-sm); padding: var(--space-1) var(--space-2); }
.title { font-size: var(--text-sm); }

/* ── Mobile: natural page scroll ────────────────────────────────────────── */
@media (max-width: 767px) {
  body { height: auto; min-height: 100vh; overflow-y: auto; }
  .page-body { overflow: visible; }
  .main-content { overflow: visible !important; padding-bottom: var(--space-8); }
}