/* ==========================================
   BLACK GYM - Chronometer Styles
   ========================================== */

:root {
  --bg-main: #05070a;
  --bg-alt: #0b1118;
  --bg-hero: #020617;
  --card-bg: #101621;
  --card-soft: #121826;
  --accent: #8DD5F5;
  --accent-soft: rgba(141, 213, 245, 0.16);
  --text-main: #f9fafb;
  --text-muted: #9ca3af;
  --border-soft: #1f2933;
  --danger: #ff6b6b;
  --success: #22c55e;
  --safe-top: env(safe-area-inset-top);
  --safe-bottom: env(safe-area-inset-bottom);
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; height: 100%; }

body {
  margin: 0;
  font-family: "Montserrat", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: radial-gradient(circle at top, #020617 0, #020617 35%, #05070a 70%);
  color: var(--text-main);
  line-height: 1.6;
  height: 100%;
}

a { color: inherit; text-decoration: none; }

/* Utilities */
.is-hidden { display: none !important; }
.text-work { color: var(--accent) !important; }
.text-rest { color: #fbbf24 !important; }

.seo-loc {
  color: rgba(229, 231, 235, 0.7);
  margin-top: 1.5rem;
  font-size: 0.92rem;
}

.mini-cta.secondary {
  margin-left: 1rem;
  color: var(--text-muted);
  font-size: 0.9em;
}
.mini-cta.secondary:hover {
  color: #fff;
}

/* Related Links */
.related-links {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-soft);
  text-align: left;
}
.related-links h3 {
  font-size: 1.1rem;
  color: var(--accent);
  margin-bottom: 0.8rem;
}
.related-links ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}
.related-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: color 0.2s;
}
.related-links a:hover {
  color: #fff;
  text-decoration: underline;
}

/* Breadcrumb */
.breadcrumb {
  margin-top: 1rem;
  margin-bottom: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.breadcrumb ol {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 0.5rem;
}
.breadcrumb li:not(:last-child)::after {
  content: "›";
  margin-left: 0.5rem;
  color: rgba(255,255,255,0.3);
}
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb [aria-current="page"] { color: #fff; font-weight: 600; }

/* Skip Link (Accessible) */
.skip-link {
  position: absolute; left: -9999px; top: 10px;
  background: #fff; color: #000; padding: .5rem .75rem; border-radius: 10px; z-index: 9999;
}
.skip-link:focus { left: 10px; }

/* Layout & Containers */
.container { width: 100%; max-width: 1360px; margin: 0 auto; padding: 0 1.5rem; }

/* Header & Nav */
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: linear-gradient(to bottom, rgba(50, 50, 50, 0.96), rgba(42, 42, 42, 0.92));
  border-bottom: 1px solid rgba(58, 58, 58, 0.5);
  backdrop-filter: blur(12px);
  padding-top: var(--safe-top);
}

.nav-container { display: flex; align-items: center; justify-content: space-between; padding: 0.75rem 1.5rem; }

.logo { display: flex; align-items: center; gap: 0.6rem; text-decoration: none; }
.logo-mark { display: block; height: 42px; width: auto; }
.logo-text { display: flex; align-items: baseline; font-family: "Russo One", system-ui; font-style: italic; font-weight: 700; letter-spacing: 0.09em; font-size: 1.3rem; }
.logo-text-main { color: #f9fafb; }
.logo-text-accent { color: var(--accent); margin-left: 0.18rem; }

.nav-toggle { display: none; } /* Hidden on desktop, shown on mobile via media query */

/* Language Switcher */
.lang-link {
  font-size: 0.85rem; font-weight: 700; color: var(--text-muted);
  border: 1px solid var(--border-soft); padding: 4px 8px; border-radius: 6px;
  transition: all 0.2s;
}
.lang-link:hover { color: var(--accent); border-color: var(--accent); }

/* App UI */
main { padding-bottom: calc(20px + var(--safe-bottom)); }

.chrono-app {
  min-height: calc(100vh - 78px);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 2.5rem 1rem;
}

.chrono-container {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-soft);
  border-radius: 20px;
  padding: 2.5rem;
  width: 100%; max-width: 560px;
  box-shadow: 0 0 50px rgba(0, 0, 0, 0.5);
  position: relative; overflow: hidden;
}

.chrono-container::before {
  content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
  background: radial-gradient(circle, var(--accent-soft) 0%, transparent 70%);
  pointer-events: none;
}

/* Top Row */
.top-row { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 1rem; z-index: 2; }
.mode-tabs { display: inline-flex; background: rgba(0, 0, 0, 0.3); border: 1px solid var(--border-soft); border-radius: 999px; padding: 4px; gap: 4px; }
.tab { border: 0; background: transparent; color: var(--text-muted); font-weight: 800; font-size: 0.8rem; letter-spacing: 0.5px; padding: 8px 14px; border-radius: 999px; cursor: pointer; transition: 0.18s ease; font-family: 'Montserrat', sans-serif; }
.tab[aria-selected="true"] { background: var(--accent-soft); color: #fff; border: 1px solid rgba(141, 213, 245, 0.3); }

.icon-btn {
  width: 44px; height: 44px; display: inline-flex; align-items: center; justify-content: center;
  border-radius: 12px; background: rgba(255, 255, 255, 0.05); border: 1px solid var(--border-soft); color: var(--text-muted); cursor: pointer; transition: 0.2s ease; flex-shrink: 0;
}
.icon-btn:hover { color: #fff; background: rgba(255, 255, 255, 0.1); }
.icon-btn svg { width: 22px; height: 22px; }

/* Circular Timer */
.time-wrap {
  width: min(440px, 85vw); aspect-ratio: 1 / 1;
  border-radius: 50%; border: 2px solid var(--accent);
  display: flex; flex-direction: column; justify-content: center; align-items: center;
  margin: 1.2rem auto 1.5rem; padding: 0;
  position: relative; z-index: 1; background: transparent;
  box-shadow: 0 0 20px rgba(143, 230, 255, 0.05);
}

.phase-label {
  font-family: "Russo One", sans-serif; font-size: 1.5rem; line-height: 1.2;
  text-transform: uppercase; letter-spacing: 2px; margin-bottom: 0.5rem;
  min-height: 1.8rem; transition: color 0.3s ease, opacity 0.3s ease;
  opacity: 0; text-align: center; width: 100%;
}
.phase-label.visible { opacity: 1; }

.time-display {
  font-family: "Montserrat", monospace; font-weight: 700; font-variant-numeric: tabular-nums;
  font-size: clamp(3.5rem, 13vw, 5.5rem); color: var(--text-main);
  text-shadow: 0 0 20px rgba(141, 213, 245, 0.3); line-height: 1;
  display: flex; justify-content: center; align-items: baseline; width: auto; margin: 0; transition: color 0.3s ease;
}
.time-display.text-work { color: var(--text-main) !important; text-shadow: 0 0 30px rgba(141, 213, 245, 0.6); }
.time-display.text-rest { text-shadow: 0 0 30px rgba(251, 191, 36, 0.4); }
.time-display .ms { font-size: 0.5em; color: var(--accent); font-variant-numeric: tabular-nums; margin-left: 6px; font-weight: 600; transition: color 0.3s ease; }
.time-display.text-work .ms { color: var(--accent) !important; opacity: 1; }
.time-display.text-rest .ms { color: inherit; opacity: 0.8; }

.subline { display: flex; justify-content: center; gap: 8px; align-items: center; margin-top: 0.8rem; color: var(--text-muted); font-size: 0.92rem; width: 90%; flex-wrap: wrap; }
.subline.is-interval { flex-direction: column; align-items: center; gap: 6px; }
.subline.is-interval #badgeRight { order: 1; }
.subline.is-interval #badgeLeft { order: 2; font-size: 0.8rem; padding: 4px 10px; opacity: 0.9; }
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px; border-radius: 999px; background: rgba(255, 255, 255, 0.04); border: 1px solid var(--border-soft); min-width: auto; justify-content: center; font-family: 'Montserrat', monospace; font-size: 0.85rem; }
.badge b { color: #fff; font-weight: 700; font-variant-numeric: tabular-nums; font-feature-settings: "tnum"; display: inline-block; min-width: 4.8em; text-align: center; }
.badge .ms-badge { color: var(--accent); font-size: 0.75em; }

/* Controls */
.controls { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1.5rem; position: relative; z-index: 1; }
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 0.78rem 1.5rem; border-radius: 999px; font-size: 0.85rem; font-weight: 600; text-decoration: none; text-transform: uppercase; letter-spacing: 0.14em; border: 1px solid transparent; cursor: pointer; transition: all 0.2s ease; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; pointer-events: none; }
.btn-success { background-color: var(--success) !important; color: #ffffff !important; box-shadow: none !important; }

.btn-main { grid-column: span 2; background-color: var(--accent); color: #0b0b0f; box-shadow: none; min-height: 54px; font-size: 1rem; }
.btn-main:hover { background-color: var(--accent); filter: brightness(1.1); box-shadow: none; transform: translateY(-1px); }
.btn-secondary { background-color: transparent; border: 1px solid rgba(255, 255, 255, 0.2); color: #fff; min-height: 50px; }
.btn-secondary:hover { border-color: #fff; background-color: rgba(255, 255, 255, 0.08); }
.btn-reset { color: var(--danger); border-color: rgba(255, 107, 107, 0.3); min-height: 50px; }
.btn-reset:hover { border-color: var(--danger); background-color: rgba(255, 107, 107, 0.1); color: var(--danger); }

/* Laps */
.lap-panel { position: relative; margin-top: 12px; background: rgba(0, 0, 0, 0.2); border: 1px solid var(--border-soft); border-radius: 16px; overflow: hidden; z-index: 1; }
.lap-header { display: flex; justify-content: space-between; align-items: center; padding: 12px 16px; background: rgba(255, 255, 255, 0.02); border-bottom: 1px solid var(--border-soft); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 1px; color: var(--text-muted); }
.laps { max-height: 250px; overflow: auto; padding: 8px; }
.laps::-webkit-scrollbar { width: 6px; }
.laps::-webkit-scrollbar-track { background: rgba(255, 255, 255, 0.02); }
.laps::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.1); border-radius: 3px; }
.lap-item { display: grid; grid-template-columns: 40px 1fr 1fr; gap: 10px; align-items: center; padding: 10px 12px; background: rgba(255, 255, 255, 0.03); border: 1px solid transparent; margin-bottom: 6px; border-radius: 8px; font-family: 'Montserrat', monospace; transition: background 0.2s; }
.lap-item.best { background: rgba(141, 213, 245, 0.08); border-color: rgba(141, 213, 245, 0.2); }
.lap-idx { color: var(--text-muted); font-size: 0.85rem; font-weight: 600; }
.lap-col { display: flex; flex-direction: column; }
.lap-col .label { font-size: 0.7rem; color: var(--text-muted); text-transform: uppercase; margin-bottom: 2px; }
.lap-col .val { font-size: 1rem; color: var(--text-main); font-weight: 600; }
.lap-col .val .ms-small { font-size: 0.75em; color: var(--accent); }

.hint { margin-top: 1rem; text-align: center; color: var(--text-muted); font-size: 0.85rem; z-index: 1; position: relative; }
.kbd { display: inline-block; border: 1px solid rgba(255, 255, 255, 0.15); border-bottom-width: 2px; border-radius: 6px; padding: 0.1rem 0.4rem; font-size: 0.8em; color: #e5e7eb; background: rgba(0, 0, 0, 0.3); margin: 0 2px; }

/* SEO & Footer */
.chrono-seo, .chrono-faq { max-width: 860px; margin: 3rem auto; padding: 0 1rem 2rem; color: var(--text-muted); }
.chrono-seo { text-align: center; }
.chrono-seo h1 { font-family: "Russo One", sans-serif; color: #fff; font-size: 1.6rem; margin: 0 0 1rem; text-transform: uppercase; }
.chrono-seo h2, .chrono-faq h2 { color: var(--accent); font-size: 1.2rem; margin-top: 2rem; }
.chrono-faq h2 { text-align: center; color: #fff; margin-bottom: 1.5rem; }
.chrono-seo p, .chrono-faq p { line-height: 1.7; margin: 1rem 0; }
.mini-cta { color: var(--accent); font-weight: 800; }
.chrono-faq details { background: rgba(255, 255, 255, 0.02); border: 1px solid var(--border-soft); padding: 1rem; border-radius: 12px; margin-bottom: 10px; }
.chrono-faq summary { color: #fff; font-weight: 700; cursor: pointer; }
.chrono-faq p { margin-top: 10px; }

.site-footer { border-top: 1px solid var(--border-soft); background: #020617; padding: 1.5rem 0; font-size: 0.85rem; color: var(--text-muted); }
.footer-content { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }
.footer-links a { margin-left: 1rem; color: var(--text-muted); }
.footer-links a:hover { color: var(--accent); }

/* Dialog */
dialog { width: min(500px, 92vw); background: var(--card-bg); border: 1px solid var(--border-soft); border-radius: 20px; color: var(--text-main); box-shadow: 0 25px 50px rgba(0, 0, 0, 0.7); padding: 0; }
dialog::backdrop { background: rgba(0, 0, 0, 0.7); backdrop-filter: blur(4px); }
.sheet-head { padding: 16px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--border-soft); background: rgba(255, 255, 255, 0.02); }
.sheet-head .h { font-family: "Russo One", sans-serif; font-size: 1.1rem; text-transform: uppercase; letter-spacing: 1px; }
.sheet-body { padding: 20px; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
label { display: flex; flex-direction: column; gap: 8px; font-size: 0.9rem; font-weight: 600; color: var(--accent); text-transform: uppercase; letter-spacing: 0.5px; }
input, select { padding: 12px; border-radius: 10px; background: #05070a; border: 1px solid var(--border-soft); color: #fff; font-family: 'Montserrat', sans-serif; font-weight: 600; outline: none; }
input:focus, select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.switch { display: flex; align-items: center; justify-content: space-between; padding: 14px; border-radius: 12px; background: rgba(255, 255, 255, 0.03); border: 1px solid var(--border-soft); margin-top: 12px; }
.switch .txt { font-weight: 600; font-size: 0.95rem; }
.switch .txt small { display: block; font-weight: 400; color: var(--text-muted); font-size: 0.8rem; margin-top: 2px; }
.switch input[type="checkbox"] { width: 44px; height: 24px; appearance: none; background: rgba(255, 255, 255, 0.1); border-radius: 999px; border: 1px solid rgba(255, 255, 255, 0.2); position: relative; cursor: pointer; padding: 0; }
.switch input[type="checkbox"]::after { content: ""; position: absolute; top: 2px; left: 2px; width: 18px; height: 18px; background: #fff; border-radius: 50%; transition: 0.2s; }
.switch input[type="checkbox"]:checked { background: var(--accent); border-color: var(--accent); }
.switch input[type="checkbox"]:checked::after { left: 22px; }
.sheet-actions { display: flex; gap: 12px; padding: 16px; border-top: 1px solid var(--border-soft); background: rgba(255, 255, 255, 0.02); }

.toast { position: fixed; left: 50%; bottom: 30px; transform: translateX(-50%); background: var(--card-bg); border: 1px solid var(--accent); padding: 12px 24px; border-radius: 99px; color: #fff; font-weight: 600; box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5); display: none; z-index: 999; }
.toast.show { display: block; }

/* Responsive */
@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .nav { position: absolute; top: 100%; left: 0; right: 0; background: #020617; border-bottom: 1px solid var(--border-soft); display: none; padding: 1rem; }
  .nav.is-open { display: block; }
  .nav-links { flex-direction: column; gap: 0.5rem; }
  .hint { display: none; }
  .time-display { font-size: 3.8rem; }
}

@media (max-width: 480px) {
  .chrono-app { padding: 0; align-items: flex-start; min-height: calc(100vh - 65px); }
  .chrono-container { width: 100%; max-width: 100%; border: none; box-shadow: none; border-radius: 0; background: rgba(255, 255, 255, 0.03); padding: 20px 16px; min-height: calc(100vh - 65px); }
  .chrono-container::before { display: none; }
  .top-row { gap: 8px; margin-bottom: 0.8rem; }
  .tab { padding: 7px 10px; font-size: 0.7rem; }
  .icon-btn { width: 40px; height: 40px; border-radius: 10px; }
  .time-wrap { width: min(300px, 85vw); margin: 0.6rem auto 1rem; }
  .time-display { font-size: clamp(3rem, 14vw, 4rem); }
  .controls { grid-template-columns: 1fr; gap: 0.8rem; }
  .btn-main { grid-column: auto; }
}

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }