/* Stylesheet for Prince of Persia Puzzle Simulators */

:root {
  --bg-primary: #07080b;
  --bg-secondary: rgba(18, 20, 28, 0.75);
  --bg-card: rgba(20, 23, 32, 0.85);
  --bg-card-hover: rgba(28, 33, 46, 0.95);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-focus: #cfa736;
  --sand: #cfa736;
  --sand-bright: #f5d47a;
  --sand-dim: #8b6e22;
  --sand-glow: rgba(207, 167, 54, 0.2);
  --parchment: #e9e4d3;
  --text-muted: #9da1b5;
  --text-dim: #65697d;

  --font-display: "Cinzel", "Georgia", serif;
  --font-body: "Jost", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", monospace;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;

  --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.5);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  min-height: 100vh;
  background-color: #06070a;
  background-image:
    linear-gradient(to bottom, rgba(6, 7, 10, 0.8) 0%, rgba(6, 7, 10, 0.92) 100%),
    url("../static/images/background.webp");
  background-repeat: no-repeat;
  background-position: center top;
  background-size: cover;
  background-attachment: fixed;
  color: var(--parchment);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  padding: 0 1.25rem 4rem;
  position: relative;
  overflow-x: hidden;
}

.ambient-canvas {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.ambient-dot-grid {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(rgba(207, 167, 54, 0.16) 1px, transparent 1px),
    radial-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 38px 38px, 19px 19px;
  background-position: 0 0, 19px 19px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 35%, black 20%, transparent 85%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 35%, black 20%, transparent 85%);
  opacity: 0.75;
}

.ambient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}

.ambient-orb-1 {
  width: 450px;
  height: 450px;
  top: -100px;
  left: 20%;
  background: radial-gradient(circle, rgba(207, 167, 54, 0.14) 0%, transparent 70%);
}

.ambient-orb-2 {
  width: 500px;
  height: 500px;
  bottom: 10%;
  right: -80px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.1) 0%, transparent 70%);
}

.page-container {
  max-width: 1040px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

/* Nav */
.top-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 0 2.5rem;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s ease, transform 0.2s ease;
}

.back-link svg {
  width: 18px;
  height: 18px;
}

.back-link:hover {
  color: var(--sand-bright);
  transform: translateX(-3px);
}

.nav-actions .btn-github {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.1rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--parchment);
  font-size: 0.88rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s ease;
}

.nav-actions .btn-github svg {
  width: 17px;
  height: 17px;
  fill: currentColor;
}

.nav-actions .btn-github:hover {
  background: rgba(207, 167, 54, 0.15);
  border-color: var(--sand);
  color: var(--sand-bright);
}

/* Hero */
.project-hero {
  text-align: center;
  padding: 1rem 0 3.5rem;
}

.hero-tag-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  background: rgba(207, 167, 54, 0.12);
  border: 1px solid rgba(207, 167, 54, 0.35);
  color: var(--sand-bright);
  margin-bottom: 1.25rem;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: 0.02em;
  color: #fff;
  margin-bottom: 0.6rem;
}

.highlight {
  color: var(--sand-bright);
  text-shadow: 0 0 25px var(--sand-glow);
}

.hero-tagline {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 1.4rem;
}

.hero-summary {
  max-width: 760px;
  margin: 0 auto 2rem;
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.hero-cta-group {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-primary, .btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.6rem;
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.22s ease;
}

.btn-primary {
  background: linear-gradient(135deg, #cfa736 0%, #aa8422 100%);
  color: #08080a;
  box-shadow: 0 4px 18px var(--sand-glow);
}

.btn-primary svg {
  width: 18px;
  height: 18px;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #f5d47a 0%, #cfa736 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(207, 167, 54, 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--parchment);
  border: 1px solid var(--border-subtle);
}

.btn-secondary svg {
  width: 18px;
  height: 18px;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
  color: #fff;
  transform: translateY(-2px);
}

/* Section */
.section {
  margin-bottom: 4rem;
}

.section-header {
  margin-bottom: 1.8rem;
}

.section-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--sand);
  margin-bottom: 0.35rem;
}

.section-title {
  font-family: var(--font-body);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 700;
  color: #fff;
}

/* Tabs */
.puzzle-tabs-bar {
  display: flex;
  gap: 0.6rem;
  overflow-x: auto;
  padding-bottom: 0.6rem;
  margin-bottom: 1.5rem;
}

.puzzle-tab {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.2rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s ease;
}

.puzzle-tab:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.puzzle-tab.active {
  background: rgba(207, 167, 54, 0.16);
  border-color: var(--sand);
  color: var(--sand-bright);
  font-weight: 600;
  box-shadow: 0 0 15px var(--sand-glow);
}

/* Panels */
.puzzle-container {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-card);
}

.puzzle-panel {
  display: none;
}

.puzzle-panel.active {
  display: block;
  animation: fadeIn 0.25s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.puzzle-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1.5rem;
  margin-bottom: 1.2rem;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 1rem;
  flex-wrap: wrap;
}

.puzzle-sub {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--sand);
  margin-bottom: 0.3rem;
}

.puzzle-name {
  font-family: var(--font-body);
  font-size: 1.45rem;
  font-weight: 600;
  color: #fff;
}

.btn-reset {
  padding: 0.45rem 1rem;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-subtle);
  color: var(--parchment);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-reset:hover {
  background: rgba(239, 68, 68, 0.2);
  border-color: rgba(239, 68, 68, 0.4);
  color: #f87171;
}

.puzzle-description {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 1.6rem;
}

.sim-display-box {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.6rem;
}

/* T2T Track */
.t2t-track-visual {
  margin-bottom: 1.5rem;
}

.track-label {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
}

.track-slots {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0.5rem;
}

.track-slot {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.8rem 0.4rem;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-dim);
  transition: all 0.2s;
}

.track-slot.current {
  background: rgba(207, 167, 54, 0.2);
  border-color: var(--sand);
  color: var(--sand-bright);
  box-shadow: 0 0 15px var(--sand-glow);
  font-weight: 700;
}

.statue-status-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.status-cell {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.8rem;
}

.sc-label {
  display: block;
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-bottom: 0.2rem;
}

.sc-val {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 600;
  color: #fff;
}

.highlight-val {
  color: var(--sand-bright);
}

.status-banner {
  padding: 0.8rem 1.2rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.92rem;
  margin-bottom: 1.4rem;
  text-align: center;
}

.goal-banner {
  background: rgba(34, 197, 94, 0.2);
  border: 1px solid rgba(34, 197, 94, 0.4);
  color: #4ade80;
}

/* Controls Cluster */
.ctrl-group-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--sand);
  margin-bottom: 0.6rem;
  text-transform: uppercase;
}

.btn-cluster {
  display: flex;
  gap: 0.7rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.ctrl-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.2rem;
  padding: 0.8rem 1.2rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--parchment);
  cursor: pointer;
  min-width: 100px;
  transition: all 0.2s ease;
}

.ctrl-btn strong {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: #fff;
}

.ctrl-btn span {
  font-size: 0.74rem;
  color: var(--text-dim);
}

.ctrl-btn:hover:not(.disabled) {
  background: rgba(207, 167, 54, 0.2);
  border-color: var(--sand);
  transform: translateY(-2px);
}

.ctrl-btn.disabled, .ctrl-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  transform: none;
}

/* History */
.history-box {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.8rem 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.history-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
  text-transform: uppercase;
}

.history-tags {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.hist-tag {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  background: rgba(207, 167, 54, 0.15);
  border: 1px solid rgba(207, 167, 54, 0.3);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--sand-bright);
}

.empty-hist {
  font-size: 0.82rem;
  color: var(--text-dim);
  font-style: italic;
}

/* Water Pillar Visual */
.water-pillar-visual {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  margin-bottom: 1.5rem;
}

.pillar-layer {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.2);
  border-radius: var(--radius-sm);
  padding: 0.8rem 1.2rem;
}

.pillar-label {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: #7dd3fc;
  min-width: 100px;
}

.dial-val {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 700;
  color: #fff;
  min-width: 30px;
}

.dial-dots {
  display: flex;
  gap: 0.4rem;
}

.dial-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
}

.dial-dots span.active {
  background: #38bdf8;
  box-shadow: 0 0 8px #38bdf8;
}

/* Gems Rings Visual */
.gems-rings-visual {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.2rem;
  margin-bottom: 1.5rem;
}

.gem-ring-box {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 1rem;
}

.gem-ring-box h4 {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--sand);
  margin-bottom: 0.8rem;
}

.slots-row {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 0.4rem;
}

.gem-slot {
  height: 38px;
  border: 1px solid;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 700;
}

/* Methodology Grid */
.methodology-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.4rem;
}

.meth-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.6rem;
}

.m-badge {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--sand);
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}

.meth-card h4 {
  font-family: var(--font-body);
  font-size: 1.15rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 0.5rem;
}

.meth-card p {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.6;
}

.meth-card code {
  font-family: var(--font-mono);
  color: var(--sand-bright);
}

/* Footer */
.project-footer {
  text-align: center;
  padding-top: 3rem;
  border-top: 1px solid var(--border-subtle);
}

.project-footer a {
  color: var(--sand);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
}

.project-footer a:hover {
  text-decoration: underline;
  color: var(--sand-bright);
}

.footer-note {
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-top: 0.6rem;
}