/* ── CSS Variables & Dark Mode ── */
:root {
  --ts-bg:          #f3f8f6;
  --ts-card:        #ffffff;
  --ts-card-border: rgba(78,179,154,0.18);
  --ts-text:        #1a2e2b;
  --ts-muted:       #5f7a74;
  --ts-input-bg:    #f9fcfb;
  --ts-input-bdr:   rgba(78,179,154,0.3);
  --ts-code-bg:     #0d2218;
  --ts-code-text:   #a8f0d0;
  --ts-chip-bg:     #e1f5ee;
  --ts-chip-text:   #1a6e55;
  --ts-alt-bg:      #edf7f3;
  --ts-shadow:      0 2px 16px rgba(78,179,154,0.10);
  --ts-brand:       #4eb39a;
  --ts-brand-d:     #3a9b83;
  --ts-error:       #c0392b;
  --ts-error-bg:    #fdf0ee;
}
body.dark-mode {
  --ts-bg:          #0d1f1b;
  --ts-card:        #122920;
  --ts-card-border: rgba(78,179,154,0.22);
  --ts-text:        #d4ede6;
  --ts-muted:       #7cb3a3;
  --ts-input-bg:    #0e2219;
  --ts-input-bdr:   rgba(78,179,154,0.35);
  --ts-code-bg:     #071510;
  --ts-code-text:   #7eefbe;
  --ts-chip-bg:     #143d2d;
  --ts-chip-text:   #5dcfaa;
  --ts-alt-bg:      #0e2017;
  --ts-shadow:      0 2px 20px rgba(0,0,0,0.35);
  background: var(--ts-bg) !important;
  color: var(--ts-text) !important;
}
body.dark-mode header,
body.dark-mode footer { background: #0b1c17 !important; border-color: rgba(78,179,154,0.18) !important; }
body.dark-mode .section-inner h2,
body.dark-mode .ts-card-title { color: var(--ts-text); }
body.dark-mode .section-inner { background: transparent; }
body.dark-mode .ts-alt-section { background: var(--ts-alt-bg) !important; }

/* ── Hero ── */
.ts-hero {
  position: relative;
  background: linear-gradient(135deg, #0e2d27 0%, #1a5c47 50%, #0e2d27 100%);
  padding: 4rem 0 3rem;
  overflow: hidden;
}
.ts-hero-bg {
  position: absolute; inset: 0;
  background-image:
    radial-gradient(ellipse 80% 60% at 70% 50%, rgba(78,179,154,0.18) 0%, transparent 70%),
    url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%234eb39a' fill-opacity='0.06'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.ts-hero-inner {
  position: relative; z-index: 1;
  display: flex; align-items: center; justify-content: space-between;
  gap: 2rem; flex-wrap: wrap;
}
.ts-hero-text { flex: 1; min-width: 280px; color: #fff; }
.ts-badge {
  display: inline-block;
  background: rgba(78,179,154,0.25);
  border: 1px solid rgba(78,179,154,0.5);
  color: #7fe8c8;
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.1em;
  text-transform: uppercase; border-radius: 20px;
  padding: 3px 12px; margin-bottom: 14px;
}
.ts-hero-text h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700; color: #fff; line-height: 1.2;
  margin-bottom: 12px;
}
.ts-hero-text p {
  color: rgba(255,255,255,0.78); font-size: 1rem; max-width: 520px;
}

/* Live clock card */
.ts-hero-live {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(78,179,154,0.35);
  backdrop-filter: blur(10px);
  border-radius: 14px;
  padding: 24px 28px;
  min-width: 240px; text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  animation: fadeSlideUp 0.6s ease both;
}
@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.ts-live-label { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.1em; color: rgba(255,255,255,0.5); }
.ts-live-ts { font-family: 'DM Mono', monospace; font-size: 2rem; font-weight: 500; color: #7fe8c8; letter-spacing: -0.5px; }
.ts-live-sub { font-family: 'DM Mono', monospace; font-size: 0.78rem; color: rgba(255,255,255,0.45); }
.ts-live-date { font-size: 0.85rem; color: rgba(255,255,255,0.72); margin-top: 4px; }
.ts-copy-btn {
  display: inline-flex; align-items: center; gap: 6px;
  margin-top: 12px; background: rgba(78,179,154,0.2);
  border: 1px solid rgba(78,179,154,0.4); color: #7fe8c8;
  padding: 6px 14px; border-radius: 20px; font-size: 0.78rem;
  cursor: pointer; transition: background 0.2s;
}
.ts-copy-btn:hover { background: rgba(78,179,154,0.35); }

/* ── Main section ── */
.ts-main-section { background: var(--ts-bg); }
.ts-alt-section  { background: var(--ts-alt-bg); }

/* Top bar */
.ts-topbar {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 10px; margin-bottom: 20px;
}
.ts-tabs { display: flex; gap: 6px; flex-wrap: wrap; }
.ts-tab {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 8px 16px; border-radius: 8px; border: 1px solid var(--ts-card-border);
  background: var(--ts-card); color: var(--ts-muted);
  font-size: 0.875rem; font-weight: 500; cursor: pointer;
  transition: all 0.18s;
}
.ts-tab:hover  { background: var(--ts-chip-bg); color: var(--ts-brand); }
.ts-tab.active { background: var(--ts-brand); color: #fff; border-color: var(--ts-brand); }


/* Card */
.ts-card {
  background: var(--ts-card);
  border: 1px solid var(--ts-card-border);
  border-radius: 14px; padding: 28px;
  box-shadow: var(--ts-shadow); margin-bottom: 20px;
  animation: fadeSlideUp 0.4s ease both;
}
.ts-card-title { font-size: 1.1rem; font-weight: 600; color: var(--ts-text); margin-bottom: 20px; }
.ts-card-sub { font-size: 0.88rem; color: var(--ts-muted); margin-bottom: 20px; }

/* Row / field */
.ts-row { display: flex; gap: 16px; flex-wrap: wrap; }
.ts-field-group { flex: 1; min-width: 220px; }
.ts-label { display: block; font-size: 0.82rem; font-weight: 600; color: var(--ts-muted); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.06em; }
.ts-hint { font-weight: 400; text-transform: none; letter-spacing: 0; }
.ts-input-row { display: flex; gap: 8px; }
.ts-input {
  width: 100%; padding: 10px 14px;
  background: var(--ts-input-bg); color: var(--ts-text);
  border: 1px solid var(--ts-input-bdr); border-radius: 8px;
  font-family: inherit; font-size: 0.95rem;
  transition: border-color 0.18s, box-shadow 0.18s;
}
.ts-input:focus { outline: none; border-color: var(--ts-brand); box-shadow: 0 0 0 3px rgba(78,179,154,0.15); }
.ts-select { cursor: pointer; }
.ts-btn-now {
  white-space: nowrap; padding: 10px 16px;
  background: var(--ts-brand); color: #fff;
  border: none; border-radius: 8px; font-size: 0.88rem; font-weight: 600;
  cursor: pointer; transition: background 0.18s, transform 0.15s;
}
.ts-btn-now:hover { background: var(--ts-brand-d); transform: translateY(-1px); }

/* Results */
.ts-results { margin-top: 24px; }
.ts-result-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; }
.ts-result-item {
  background: var(--ts-input-bg); border: 1px solid var(--ts-card-border);
  border-radius: 10px; padding: 12px 14px;
  display: flex; flex-direction: column; gap: 4px; position: relative;
}
.ts-result-label { font-size: 0.72rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.07em; color: var(--ts-muted); }
.ts-result-val { font-family: 'DM Mono', monospace; font-size: 0.92rem; color: var(--ts-text); word-break: break-all; }
.ts-copy-inline {
  align-self: flex-start; margin-top: 6px;
  background: var(--ts-chip-bg); color: var(--ts-chip-text);
  border: none; border-radius: 5px; padding: 3px 10px; font-size: 0.72rem; font-weight: 600;
  cursor: pointer; transition: background 0.18s;
}
.ts-copy-inline:hover { background: var(--ts-brand); color: #fff; }
.ts-copy-inline.copied { background: #1a7a55; color: #fff; }

/* Info chips */
.ts-info-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.ts-chip {
  background: var(--ts-chip-bg); color: var(--ts-chip-text);
  border-radius: 20px; padding: 4px 14px;
  font-size: 0.78rem; font-weight: 600;
}

/* Error */
.ts-error { margin-top: 16px; padding: 12px 16px; background: var(--ts-error-bg); border-left: 3px solid var(--ts-error); border-radius: 8px; color: var(--ts-error); font-size: 0.88rem; }

/* Multi-zone */
.ts-multizone { margin-top: 24px; }
.ts-section-subtitle { font-size: 0.95rem; font-weight: 600; color: var(--ts-text); margin-bottom: 14px; }
.ts-zone-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 10px; }
.ts-zone-item {
  background: var(--ts-input-bg); border: 1px solid var(--ts-card-border);
  border-radius: 8px; padding: 10px 14px;
}
.ts-zone-name { font-size: 0.75rem; color: var(--ts-muted); font-weight: 600; }
.ts-zone-time { font-family: 'DM Mono', monospace; font-size: 0.88rem; color: var(--ts-text); }

/* History */
.ts-history-card { animation: none; }
.ts-history-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.ts-ghost-btn { background: none; border: 1px solid var(--ts-card-border); color: var(--ts-muted); padding: 4px 12px; border-radius: 6px; font-size: 0.78rem; cursor: pointer; }
.ts-ghost-btn:hover { border-color: var(--ts-brand); color: var(--ts-brand); }
.ts-history-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.ts-history-item {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 4px;
  background: var(--ts-input-bg); border: 1px solid var(--ts-card-border);
  border-radius: 8px; padding: 8px 14px; font-size: 0.82rem;
}
.ts-history-ts { font-family: 'DM Mono', monospace; color: var(--ts-brand); }
.ts-history-date { color: var(--ts-muted); }
.ts-history-use { background: none; border: none; color: var(--ts-brand); font-size: 0.78rem; cursor: pointer; text-decoration: underline; }

/* Unit converter */
.ts-unit-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; }
.ts-unit-item { display: flex; flex-direction: column; gap: 6px; }

/* Cheat sheet */
.ts-cheat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 14px; margin-top: 24px; }
.ts-cheat-card {
  background: var(--ts-card); border: 1px solid var(--ts-card-border);
  border-radius: 12px; padding: 18px 16px; text-align: center;
  box-shadow: var(--ts-shadow); transition: transform 0.18s, box-shadow 0.18s;
}
.ts-cheat-card:hover { transform: translateY(-3px); box-shadow: 0 6px 24px rgba(78,179,154,0.18); }
.ts-cheat-icon { font-size: 1.8rem; margin-bottom: 8px; }
.ts-cheat-label { font-size: 0.78rem; font-weight: 600; color: var(--ts-muted); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.06em; }
.ts-cheat-card code { font-family: 'DM Mono', monospace; font-size: 0.8rem; color: var(--ts-brand); }

/* Code snippets */
.ts-snippet-tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; }
.ts-snippet-tab {
  padding: 7px 16px; border-radius: 7px;
  border: 1px solid var(--ts-card-border);
  background: var(--ts-card); color: var(--ts-muted);
  font-size: 0.82rem; font-weight: 600; cursor: pointer; transition: all 0.18s;
}
.ts-snippet-tab:hover  { color: var(--ts-brand); border-color: var(--ts-brand); }
.ts-snippet-tab.active { background: var(--ts-brand); color: #fff; border-color: var(--ts-brand); }
.ts-code-block { position: relative; border-radius: 12px; overflow: hidden; }
.ts-copy-code {
  position: absolute; top: 12px; right: 12px;
  background: rgba(78,179,154,0.2); border: 1px solid rgba(78,179,154,0.4);
  color: #7fe8c8; padding: 4px 12px; border-radius: 6px;
  font-size: 0.72rem; font-weight: 600; cursor: pointer; transition: background 0.18s;
}
.ts-copy-code:hover { background: rgba(78,179,154,0.4); }
pre {
  background: var(--ts-code-bg); color: var(--ts-code-text);
  padding: 28px 20px 20px; margin: 0; overflow-x: auto;
  font-family: 'DM Mono', monospace; font-size: 0.85rem; line-height: 1.75;
  border-radius: 12px; border: 1px solid rgba(78,179,154,0.15);
}
pre code { background: none; padding: 0; }
.c  { color: #4a7a63; }
.k  { color: #7fe8c8; font-weight: 600; }
.s  { color: #f6c90e; }

/* FAQ */
.ts-faq { display: flex; flex-direction: column; gap: 10px; margin-top: 24px; }
.ts-faq-item {
  background: var(--ts-card); border: 1px solid var(--ts-card-border);
  border-radius: 12px; overflow: hidden;
  box-shadow: var(--ts-shadow);
}
.ts-faq-q {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; cursor: pointer; font-weight: 600;
  color: var(--ts-text); font-size: 0.95rem; list-style: none;
  gap: 12px; user-select: none;
}
.ts-faq-q::-webkit-details-marker { display: none; }
.ts-faq-arrow { flex-shrink: 0; transition: transform 0.25s; color: var(--ts-brand); }
details[open] .ts-faq-arrow { transform: rotate(180deg); }
.ts-faq-a { padding: 0 20px 16px; color: var(--ts-muted); font-size: 0.9rem; line-height: 1.7; }

/* Responsive */
@media (max-width: 600px) {
  .ts-hero { padding: 2.5rem 0 2rem; }
  .ts-card { padding: 18px; }
  .ts-result-grid { grid-template-columns: 1fr; }
}