@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600&family=Inter:wght@400;500&display=swap');

:root {
  --bg: #EDEBE6;
  --surface: #F7F6F2;
  --ink: #23211D;
  --ink-soft: #635F56;
  --line: #C9C4B8;
  --line-strong: #A29C8C;
  --blueprint: #3B5BA5;
  --blueprint-soft: #E4EAF4;
  --signal: #E8592B;
  --signal-soft: #FBE6DC;

  --font-display: 'Space Grotesk', 'Arial Narrow', sans-serif;
  --font-body: 'Inter', -apple-system, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* =========================
   HEADER / STAMP
========================= */
header {
  padding: 2.5rem 1.5rem 1.5rem;
  max-width: 1040px;
  margin: 0 auto;
  width: 100%;
}

.eyebrow {
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  display: flex;
  align-items: center;
  gap: 10px;
}

.eyebrow .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--signal);
}

h1 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(28px, 4vw, 40px);
  margin: 0.4rem 0 0;
  letter-spacing: -0.01em;
}

.subtitle {
  color: var(--ink-soft);
  font-size: 15px;
  margin-top: 0.4rem;
  max-width: 46ch;
  line-height: 1.6;
}

/* =========================
   TIMELINE RULER (signature element)
========================= */
.ruler-wrap {
  max-width: 1040px;
  margin: 0 auto;
  width: 100%;
  padding: 0 1.5rem;
}

.ruler-scroll {
  overflow-x: auto;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
  padding: 18px 0 10px;
  scrollbar-width: thin;
}

.ruler {
  display: flex;
  align-items: flex-end;
  gap: 0;
  min-width: max-content;
  position: relative;
}

.ruler-month {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  border-left: 1px solid var(--line-strong);
  padding: 0 10px 0 10px;
  position: relative;
}

.ruler-month-label {
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 10px;
  white-space: nowrap;
}

.ruler-days {
  display: flex;
  gap: 3px;
  align-items: flex-end;
}

.ruler-tick {
  width: 7px;
  border-radius: 1px;
  background: var(--line-strong);
  cursor: pointer;
  transition: background 0.12s ease, transform 0.12s ease;
  position: relative;
}

.ruler-tick:hover {
  background: var(--blueprint);
  transform: scaleY(1.15);
}

.ruler-tick.active {
  background: var(--signal);
}

.ruler-tick.empty {
  background: var(--line);
  cursor: default;
  opacity: 0.4;
}

.ruler-tick.empty:hover {
  background: var(--line);
  transform: none;
}

/* =========================
   DAY HEADER
========================= */
main {
  max-width: 1040px;
  margin: 0 auto;
  width: 100%;
  padding: 1.75rem 1.5rem 4rem;
  flex: 1;
}

.day-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.day-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 500;
}

.day-count {
  font-size: 13px;
  color: var(--ink-soft);
}

/* =========================
   PHOTO GRID
========================= */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 10px;
}

.thumb {
  aspect-ratio: 3 / 2;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 3px;
  overflow: hidden;
  cursor: pointer;
  position: relative;
}

.thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.thumb .time {
  position: absolute;
  left: 6px;
  bottom: 6px;
  font-family: var(--font-display);
  font-size: 11px;
  padding: 2px 6px;
  background: rgba(35, 33, 29, 0.72);
  color: #F7F6F2;
  border-radius: 2px;
}

.thumb-skeleton {
  background: linear-gradient(90deg, var(--surface) 25%, var(--line) 50%, var(--surface) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* =========================
   STATES
========================= */
.state {
  padding: 3rem 0;
  text-align: center;
  color: var(--ink-soft);
  font-size: 14px;
}

.state strong {
  display: block;
  font-family: var(--font-display);
  font-size: 17px;
  color: var(--ink);
  margin-bottom: 6px;
  font-weight: 500;
}

/* =========================
   LIGHTBOX
========================= */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(20, 19, 16, 0.92);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 50;
  padding: 2rem;
}

.lightbox.open { display: flex; }

.lightbox img {
  max-width: 100%;
  max-height: 82vh;
  border-radius: 2px;
}

.lightbox-bar {
  position: absolute;
  top: 1.25rem;
  left: 1.5rem;
  right: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #F7F6F2;
  font-family: var(--font-display);
  font-size: 13px;
}

.lightbox-close, .lightbox-nav {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.25);
  color: #F7F6F2;
  border-radius: 3px;
  padding: 6px 12px;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 13px;
}

.lightbox-nav-row {
  position: absolute;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
}

.lightbox-download {
  color: var(--blueprint-soft);
  text-decoration: none;
}

@media (max-width: 600px) {
  header { padding: 1.75rem 1rem 1.25rem; }
  .ruler-wrap, main { padding-left: 1rem; padding-right: 1rem; }
  .grid { grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); }
}