/* =========================================================
   Base + Theme Variables
   ========================================================= */
:root {
  --font-stack: system-ui,-apple-system,Segoe UI,Roboto,Inter,Arial,sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  --bg-primary: #ffffff;
  --bg-secondary: #f6f7f8;
  --text-primary: #111111;
  --text-secondary: #555555;

  --accent: #111111;
  --accent-hover: #000000;

  --border-color: rgba(0,0,0,0.08);
  --focus: 2px solid #0a84ff;

  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 28px;
  --space-xl: 48px;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --transition-fast: 120ms;
  --transition: 220ms;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px -2px rgba(0,0,0,0.10);

  --album-size-min: 120px;
  --album-size-max: 200px;
}

[data-theme="dark"] {
  --bg-primary: #1a1a1a;
  --bg-secondary: #252525;
  --text-primary: #ffffff;
  --text-secondary: #c8c8c8;
  --border-color: rgba(255,255,255,0.08);
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.6);
  --shadow-md: 0 4px 14px -2px rgba(0,0,0,0.65);
  --accent: #ffffff;
  --accent-hover: #e6e6e6;
}

/* =========================================================
   Reset / Base
   ========================================================= */
* {
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-stack);
  line-height: 1.4;
  color: var(--text-primary);
  background: var(--bg-primary);
  -webkit-text-size-adjust: 100%;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition-fast) ease;
}
a:hover,
a:focus-visible {
  color: var(--accent-hover);
}

p {
  margin: 0 0 var(--space-md);
  color: var(--text-secondary);
  font-size: 0.98rem;
}

h1, h2, h3 {
  line-height: 1.15;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 var(--space-md);
}

h1 { font-size: clamp(2.3rem, 5.5vw, 3.6rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
h3 { font-size: clamp(1.25rem, 2.2vw, 1.6rem); }

button {
  font: inherit;
  cursor: pointer;
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

button:focus-visible,
a:focus-visible {
  outline: var(--focus);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* =========================================================
   Layout
   ========================================================= */
main.snap-scroll-container {
  overflow-y: scroll;
  scroll-snap-type: y proximity;
}

/* Desktop: Fixed viewport height */
@media (min-width: 769px) {
  main.snap-scroll-container {
    height: 100vh;
  }
}

.container,
.section.about,
.section.music-section,
.section.strava-section {
  scroll-snap-align: start;
}

/* Mobile: Allow full scrolling through all content */
@media (max-width: 768px) {
  .container,
  .section.about,
  .section.music-section,
  .section.strava-section {
    scroll-snap-stop: normal;
  }
}

.container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 100vh;
  overflow: hidden;
}

.left, .right {
  position: relative;
  display: flex;
  flex-direction: column;
}

.left {
  justify-content: stretch;
  align-items: stretch;
  overflow: hidden;
}

.left .portrait {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  transition: transform var(--transition) ease;
}

.right {
  padding: clamp(var(--space-lg), 4vw, var(--space-xl)) clamp(var(--space-lg), 4vw, var(--space-xl));
  gap: var(--space-lg);
  justify-content: center;
}

.content-sections {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
  padding: var(--space-xl) clamp(var(--space-lg), 5vw, var(--space-xl));
  max-width: 1400px;
  margin: 0 auto;
}

.section {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  min-width: 0;
}

.section.about,
.section.music-section,
.section.strava-section {
  padding-top: var(--space-lg);
}

/* =========================================================
   Buttons
   ========================================================= */
.buttons {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0.75rem 1.3rem;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1.1;
  white-space: nowrap;
  position: relative;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.btn:hover {
  background: var(--text-primary);
  color: var(--bg-primary);
}

.btn:active {
  transform: translateY(1px);
}

.theme-toggle {
  min-width: 48px;
  justify-content: center;
  font-size: 1.1rem;
  padding: 0.75rem;
}

.btn-disabled {
  opacity: 0.5;
  cursor: pointer;
}

.btn-disabled:hover {
  background: transparent;
  color: var(--text-primary);
}

/* =========================================================
   About
   ========================================================= */
.about-inner {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: 1fr;
  max-width: 950px;
}

.about-text {
  max-width: 780px;
}

.section.about p {
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

/* =========================================================
   Music Section
   ========================================================= */
.music-grid {
  display: grid;
  grid-template-columns: 1fr; /* stack on small screens */
  gap: var(--space-lg);
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
  align-items: start;
}

@media (min-width: 900px) {
  .music-grid {
    grid-template-columns: 1fr 1fr; /* side by side on larger screens */
  }
}

.music-subsection {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
}

#spotify {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  align-items: center;
  text-align: center;
}

#spotify-track {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  width: 100%;
}

#spotify .now-playing {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

#albumArt {
  width: clamp(var(--album-size-min), 25vw, var(--album-size-max));
  height: clamp(var(--album-size-min), 25vw, var(--album-size-max));
  object-fit: cover;
  object-position: center;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  background: var(--bg-secondary);
  transition: opacity var(--transition), transform var(--transition);
}

#albumArt.no-music {
  object-fit: contain;
  padding: var(--space-md);
  opacity: 0.75;
}

#track {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 1.05rem;
  margin: 0;
}

#timeRangeButtons {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

#timeRangeButtons button {
  padding: 0.55rem 1rem;
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  background: transparent;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

#timeRangeButtons button:hover {
  background: var(--text-primary);
  color: var(--bg-primary);
  cursor: pointer;
}

#topTracks {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  min-height: 40px;
}

/* =========================================================
   Strava Section
   ========================================================= */
.strava-grid {
  display: grid;
  gap: var(--space-xl);
}

.strava-map {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

#map {
  width: 100%;
  height: 300px;
  border-radius: var(--radius-lg);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  overflow: hidden;
  position: relative;
}
@media (min-width: 768px) {
  #map { height: 320px; }
}

.run-details {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding: var(--space-lg);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.run-details h3 {
  margin: 0 0 4px;
  font-size: 1.15rem;
}

.run-details .meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.run-status {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  padding: var(--space-lg);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  width: 100%;
  align-items: center;
}

.today-status {
  width: 100%;
  max-width: 900px;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  text-align: center;
}

#runStatus {
  font-weight: 600;
  color: var(--text-primary);
}

#pingAlex {
  background: #e01e5a;
  border: 1px solid #e01e5a;
  color: #fff;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  transition: background var(--transition);
}

#pingAlex:hover {
  background: #c0174d;
}

#pingAlex:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.streak-status {
  width: 100%;
  max-width: 900px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.streak-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 var(--space-sm);
  color: var(--text-primary);
}

.streak-count {
  font-size: clamp(2.2rem, 6vw, 3.2rem);
  font-weight: 800;
  line-height: 1;
  margin: 0;
  color: var(--text-primary);
}

.streak-label {
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 0.07em;
  color: var(--text-secondary);
  margin: 0 0 var(--space-sm);
}

.streak-stats {
  display: grid;
  grid-template-columns: 1fr 1fr; /* force distance and time side-by-side */
  gap: var(--space-sm);
  width: 100%;
}

.streak-stats .stat-item {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.streak-stat-label {
  font-size: 12px;
  color: var(--text-secondary);
  letter-spacing: 0.03em;
}

.streak-stat-value {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* =========================================================
   Theme Toggle Indicator
   ========================================================= */
.theme-toggle {
  position: relative;
  overflow: hidden;
}
.theme-toggle .theme-toggle-text {
  display: inline-block;
  transition: transform var(--transition), opacity var(--transition);
}

/* =========================================================
   Utilities
   ========================================================= */
.fade-in {
  animation: fadeIn 400ms ease;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 1100px) {
  .container {
    grid-template-columns: 1fr;
    min-height: auto;
  }
  .left {
    height: 60vh;
  }
  .left .portrait {
    height: 60vh;
  }
}

@media (max-width: 880px) {
  .music-subsection {
    padding: var(--space-md) var(--space-lg);
  }
}

@media (max-width: 780px) {
  .right {
    padding: var(--space-xl) var(--space-lg);
  }
  .about-inner {
    grid-template-columns: 1fr;
  }
  #spotify .now-playing {
    flex-direction: column;
    align-items: flex-start;
  }
  .run-details, .run-status {
    padding: var(--space-lg) var(--space-md);
  }
}

@media (min-width: 900px) {
  .strava-grid {
    grid-template-columns: 1.4fr 1fr;
    align-items: start;
  }
  .strava-map {
    order: 1;
  }
  .run-status {
    order: 2;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}

/* =========================================================
   Dark Mode Specific Tweaks (minimal)
   ========================================================= */
[data-theme="dark"] .music-subsection,
[data-theme="dark"] .run-details,
[data-theme="dark"] .run-status {
  box-shadow: 0 1px 2px rgba(0,0,0,0.7);
}

[data-theme="dark"] #pingAlex {
  background: #ff2d6f;
  border-color: #ff2d6f;
}
[data-theme="dark"] #pingAlex:hover {
  background: #e0205c;
}

[data-theme="dark"] .btn:hover {
  background: var(--accent);
  color: #000;
}

/* Keep button borders visible in dark mode */
[data-theme="dark"] .btn,
[data-theme="dark"] #timeRangeButtons button,
[data-theme="dark"] #pingAlex {
  border-color: rgba(255,255,255,0.18);
}

/* =========================================================
   Footer
   ========================================================= */
.site-footer {
  padding: var(--space-xl) clamp(var(--space-lg), 5vw, var(--space-xl));
  border-top: 1px solid var(--border-color);
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.site-footer p {
  margin: 0;
}

/* =========================================================
   End
   ========================================================= */