/* ═══════════════════════════════════════════════════════════════
   LIFE IN WEEKS — style.css (v2)
   ═══════════════════════════════════════════════════════════════ */

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

:root {
  --black:    #000000;
  --white:    #ffffff;
  --off:      #f5f5f5;
  --dim:      #888888;
  --dim2:     #555555;
  --border:   #1e1e1e;
  --border2:  #2a2a2a;
  --grid-gap: 3px;
  --panel-w:  360px;
}

html { scroll-behavior: smooth; }

body {
  background: var(--black);
  color: var(--white);
  font-family: 'DM Mono', monospace;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ─── GRAIN ──────────────────────────────────────────────────────────────────── */
.grain {
  position: fixed; inset: -50%; width: 200%; height: 200%;
  pointer-events: none; z-index: 9998; opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat; background-size: 128px 128px;
  animation: grain-move 0.5s steps(1) infinite;
}
@keyframes grain-move {
  0%   { transform: translate(0,0); }
  25%  { transform: translate(-2%,-3%); }
  50%  { transform: translate(1%,2%); }
  75%  { transform: translate(-1%,1%); }
  100% { transform: translate(2%,-1%); }
}

/* ─── SCREENS ────────────────────────────────────────────────────────────────── */
.screen { min-height: 100vh; }
.hidden { display: none !important; }

/* ─── LANDING ────────────────────────────────────────────────────────────────── */
#screen-landing {
  display: flex; align-items: center; justify-content: center;
  padding: clamp(32px, 6vw, 80px) 20px; position: relative;
}
#screen-landing::before {
  content: ''; position: fixed; inset: 0;
  background-image: repeating-linear-gradient(0deg, transparent, transparent 39px, #ffffff07 39px, #ffffff07 40px);
  pointer-events: none;
}

.landing-inner { text-align: center; max-width: 560px; width: 100%; position: relative; z-index: 1; }

.eyebrow {
  font-size: 10px; letter-spacing: 6px; color: var(--dim); margin-bottom: 28px;
  animation: fadeUp 0.8s ease both;
}
.hero-title {
  font-family: 'Playfair Display', serif; font-weight: 400;
  font-size: clamp(58px, 14vw, 110px); line-height: 0.9; letter-spacing: -2px;
  margin-bottom: 28px; animation: fadeUp 0.8s 0.1s ease both;
}
.hero-title em { font-style: italic; color: var(--dim); }

.hero-sub {
  font-size: 13px; letter-spacing: 1px; color: var(--dim); line-height: 1.8;
  margin-bottom: 48px; animation: fadeUp 0.8s 0.2s ease both;
}

/* ─── DOB PICKER ─────────────────────────────────────────────────────────────── */
.dob-picker { animation: fadeUp 0.8s 0.3s ease both; }

.picker-label { font-size: 9px; letter-spacing: 4px; color: var(--dim); margin-bottom: 12px; }

.picker-row {
  display: flex; align-items: center; justify-content: center;
  border: 1px solid #2a2a2a; width: fit-content; margin: 0 auto; background: #080808;
}
.select-sep { color: #333; font-size: 18px; padding: 0 4px; user-select: none; }

.select-wrap select {
  appearance: none; background: transparent; border: none;
  color: var(--white); font-family: 'DM Mono', monospace;
  font-size: clamp(13px, 2.5vw, 15px); letter-spacing: 2px;
  padding: 14px 12px; cursor: pointer; outline: none;
  min-width: 52px; text-align: center; transition: background 0.2s;
}
.select-wrap select:focus { background: #161616; }
.select-wrap select option { background: #111; color: #fff; font-size: 14px; }
#pick-month { min-width: 120px !important; }

.dob-error {
  font-size: 11px; color: #ff4444; letter-spacing: 1px; margin-top: 10px;
  min-height: 16px; opacity: 0; transition: opacity 0.3s;
}
.dob-error.visible { opacity: 1; }

.start-btn {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  margin: 28px auto 0; background: var(--white); color: var(--black);
  border: none; padding: 14px 32px; font-family: 'DM Mono', monospace;
  font-size: 11px; letter-spacing: 3px; cursor: pointer;
  transition: background 0.2s, transform 0.15s; width: fit-content;
}
.start-btn:hover { background: var(--off); transform: translateY(-1px); }
.start-btn:active { transform: translateY(0); }

.landing-quote {
  margin-top: 56px; font-size: 11px; color: #3a3a3a;
  line-height: 1.8; letter-spacing: 0.5px;
  animation: fadeUp 0.8s 0.5s ease both;
}
.landing-quote span { color: #2e2e2e; }

/* ─── APP HEADER ─────────────────────────────────────────────────────────────── */
.app-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 24px; border-bottom: 1px solid var(--border);
  position: sticky; top: 0; background: rgba(0,0,0,0.93);
  backdrop-filter: blur(12px); z-index: 500;
  gap: 12px;
}
.app-logo { font-family: 'Playfair Display', serif; font-size: 18px; letter-spacing: 2px; color: var(--dim); flex-shrink: 0; }

.header-center { text-align: center; min-width: 0; flex: 1; }
.header-name { font-size: clamp(10px, 2vw, 13px); letter-spacing: 1px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.header-sub { font-size: 9px; letter-spacing: 2px; color: var(--dim); margin-top: 2px; }

.header-right { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }

.icon-btn {
  background: transparent; border: 1px solid #2a2a2a; color: var(--dim);
  font-size: 16px; width: 34px; height: 34px; cursor: pointer;
  transition: border-color 0.2s, color 0.2s; display: flex; align-items: center; justify-content: center;
}
.icon-btn:hover { border-color: var(--white); color: var(--white); }

.reset-btn {
  background: transparent; border: 1px solid #2a2a2a; color: var(--dim);
  font-family: 'DM Mono', monospace; font-size: 9px; letter-spacing: 2px;
  padding: 7px 12px; cursor: pointer; transition: border-color 0.2s, color 0.2s; white-space: nowrap;
}
.reset-btn:hover { border-color: var(--white); color: var(--white); }

/* ─── COUNTDOWN BAR ──────────────────────────────────────────────────────────── */
.countdown-bar {
  background: #060606; border-bottom: 1px solid var(--border);
  padding: 14px 24px; text-align: center;
}
.countdown-label { font-size: 8px; letter-spacing: 4px; color: var(--dim2); margin-bottom: 10px; }

.countdown-digits {
  display: flex; align-items: center; justify-content: center;
  gap: 0; flex-wrap: wrap; row-gap: 8px;
}
.cd-unit { display: flex; flex-direction: column; align-items: center; min-width: 52px; }
.cd-unit span {
  font-family: 'Playfair Display', serif; font-size: clamp(22px, 5vw, 36px);
  font-weight: 700; letter-spacing: -1px; line-height: 1; tabular-nums: true;
  font-variant-numeric: tabular-nums;
}
.cd-unit em {
  font-style: normal; font-size: 7px; letter-spacing: 3px;
  color: var(--dim2); margin-top: 4px;
}
.cd-colon {
  font-family: 'Playfair Display', serif; font-size: clamp(18px, 4vw, 28px);
  color: #333; padding: 0 4px; padding-bottom: 14px; align-self: center;
  animation: colon-blink 1s step-end infinite;
}
@keyframes colon-blink { 0%,100% { opacity: 1; } 50% { opacity: 0.2; } }

/* ─── STATS BAR ──────────────────────────────────────────────────────────────── */
.stats-bar {
  display: flex; justify-content: center; align-items: center;
  padding: 24px 16px; gap: 0; border-bottom: 1px solid var(--border); flex-wrap: wrap;
}
.stat-item { text-align: center; padding: 8px clamp(14px, 3vw, 36px); }
.stat-value {
  font-family: 'Playfair Display', serif; font-size: clamp(20px, 4vw, 34px);
  font-weight: 700; letter-spacing: -1px; line-height: 1;
}
.stat-label { font-size: 8px; letter-spacing: 3px; color: var(--dim); margin-top: 6px; text-transform: uppercase; }
.stat-divider { width: 1px; height: 36px; background: var(--border); align-self: center; }

/* ─── PROGRESS BAR ───────────────────────────────────────────────────────────── */
.progress-track { width: 100%; height: 2px; background: #0d0d0d; }
.progress-fill { height: 100%; background: var(--white); width: 0%; transition: width 1.4s cubic-bezier(0.16,1,0.3,1); }

/* ─── LIFESPAN SLIDER ────────────────────────────────────────────────────────── */
.slider-bar {
  padding: 16px 24px 14px; border-bottom: 1px solid var(--border);
  background: #050505;
}
.slider-label-row {
  display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px;
}
.slider-label { font-size: 8px; letter-spacing: 4px; color: var(--dim2); }
.slider-value  { font-size: 11px; letter-spacing: 2px; color: var(--dim); }

input[type="range"] {
  width: 100%; appearance: none; height: 1px;
  background: #222; outline: none; cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
  appearance: none; width: 14px; height: 14px;
  background: var(--white); border-radius: 0; cursor: pointer;
  transition: transform 0.15s;
}
input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.3); }
input[type="range"]::-moz-range-thumb {
  width: 14px; height: 14px; background: var(--white); border: none;
  border-radius: 0; cursor: pointer;
}

/* ─── GRID WRAPPER ───────────────────────────────────────────────────────────── */
.grid-wrapper { padding: 24px 16px 16px; }

.grid-layout { display: flex; gap: 12px; align-items: flex-start; max-width: 1080px; margin: 0 auto; }

/* Decade labels column */
.decade-col {
  display: flex; flex-direction: column; justify-content: space-between;
  flex-shrink: 0; width: 32px; padding-top: 0;
}
.decade-label {
  font-size: 8px; letter-spacing: 1px; color: var(--dim2);
  text-align: right; line-height: 1; flex: 1;
  display: flex; align-items: flex-start; justify-content: flex-end;
}

/* Grid main */
.grid-main { flex: 1; min-width: 0; }

/* ─── LEGEND ─────────────────────────────────────────────────────────────────── */
.phase-legend {
  display: flex; flex-wrap: wrap; gap: 10px 20px;
  margin-bottom: 18px; padding-bottom: 16px; border-bottom: 1px solid #141414;
}
.legend-item { display: flex; align-items: center; gap: 7px; }
.legend-dot { width: 8px; height: 8px; flex-shrink: 0; }
.legend-dot--current { background: var(--white); outline: 2px solid var(--white); outline-offset: 1px; }
.legend-dot--milestone { background: transparent; border: 1px solid var(--white); position: relative; }
.legend-dot--milestone::after { content:''; position: absolute; top:50%; left:50%; transform: translate(-50%,-50%); width:2px; height:2px; background: var(--white); }
.legend-text { font-size: 9px; letter-spacing: 1.5px; color: var(--dim); }

/* ─── GRID ───────────────────────────────────────────────────────────────────── */
.grid {
  display: grid;
  grid-template-columns: repeat(52, 1fr);
  gap: var(--grid-gap);
}

.week {
  aspect-ratio: 1; background: #111; cursor: crosshair;
  transition: transform 0.12s ease, background 0.12s ease;
  animation: popIn 0.25s ease both; position: relative;
}
.week.past   { background: var(--phase-color, #fff); }
.week.current {
  background: var(--white); z-index: 2;
  animation: pulse-current 2s ease-in-out infinite, popIn 0.25s ease both;
  outline: 1px solid var(--white); outline-offset: 1px;
}
.week.milestone { outline: 1px solid rgba(255,255,255,0.35); outline-offset: 0; }
.week.flash { animation: flash-week 1.8s ease forwards !important; }

@keyframes popIn {
  from { opacity: 0; transform: scale(0.3); }
  to   { opacity: 1; transform: scale(1); }
}
@keyframes pulse-current {
  0%,100% { outline-color: var(--white); }
  50%     { outline-color: transparent; }
}
@keyframes flash-week {
  0%,100% { transform: scale(1);   background: var(--white); }
  25%     { transform: scale(2.5); background: var(--white); }
  50%     { transform: scale(1.5); background: var(--white); }
}

/* Desktop hover */
@media (hover: hover) {
  .week:hover { transform: scale(2); z-index: 10; background: var(--white) !important; }
}

/* ─── REFLECTION PANEL ───────────────────────────────────────────────────────── */
.panel-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.6);
  backdrop-filter: blur(2px); z-index: 600;
  opacity: 0; pointer-events: none; transition: opacity 0.3s;
}
.panel-overlay.open { opacity: 1; pointer-events: all; }

.reflection-panel {
  position: fixed; top: 0; right: 0; height: 100vh; width: var(--panel-w);
  background: #080808; border-left: 1px solid var(--border2);
  padding: 40px 32px; z-index: 700;
  transform: translateX(100%); transition: transform 0.35s cubic-bezier(0.16,1,0.3,1);
  overflow-y: auto;
}
.reflection-panel.open { transform: translateX(0); }

.panel-close {
  position: absolute; top: 20px; right: 20px;
  background: transparent; border: none; color: var(--dim); font-size: 18px;
  cursor: pointer; transition: color 0.2s; line-height: 1; padding: 4px;
}
.panel-close:hover { color: var(--white); }

.panel-eyebrow { font-size: 8px; letter-spacing: 4px; color: var(--dim2); margin-bottom: 16px; }
.panel-week-num { font-family: 'Playfair Display', serif; font-size: 26px; line-height: 1.1; margin-bottom: 6px; }
.panel-date-range { font-size: 10px; letter-spacing: 1px; color: var(--dim); margin-bottom: 24px; }

.panel-divider { height: 1px; background: var(--border); margin: 20px 0; }

.panel-row {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 8px 0; border-bottom: 1px solid #141414;
}
.panel-key { font-size: 8px; letter-spacing: 3px; color: var(--dim2); }
.panel-val { font-size: 12px; letter-spacing: 1px; text-align: right; }

.panel-message {
  margin-top: 24px; font-size: 12px; color: var(--dim);
  line-height: 1.9; font-style: italic; letter-spacing: 0.3px;
}

/* ─── SHARE MODAL ────────────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.85);
  backdrop-filter: blur(4px); z-index: 800;
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
}

.share-modal {
  background: #0a0a0a; border: 1px solid var(--border2);
  padding: 40px 36px; max-width: 420px; width: 100%; position: relative;
  animation: fadeUp 0.3s ease both;
}
.share-title { font-size: 9px; letter-spacing: 5px; color: var(--dim); margin-bottom: 24px; }
.share-card {
  white-space: pre; font-size: 11px; line-height: 1.9; color: var(--dim);
  border: 1px solid var(--border); padding: 20px; background: #060606;
  letter-spacing: 0.5px; overflow-x: auto;
}
.copy-btn {
  margin-top: 20px; width: 100%; background: var(--white); color: var(--black);
  border: none; padding: 13px; font-family: 'DM Mono', monospace;
  font-size: 10px; letter-spacing: 3px; cursor: pointer; transition: background 0.2s;
}
.copy-btn:hover { background: var(--off); }

/* ─── FOOTER ─────────────────────────────────────────────────────────────────── */
.app-footer {
  padding: 28px 24px; border-top: 1px solid var(--border);
  text-align: center; margin-top: 16px;
}
.footer-quote {
  font-size: 11px; color: #383838; letter-spacing: 0.5px;
  line-height: 1.9; max-width: 560px; margin: 0 auto; font-style: italic;
}
.footer-meta { margin-top: 12px; font-size: 9px; letter-spacing: 2px; color: #2a2a2a; }

/* ─── TOOLTIP ────────────────────────────────────────────────────────────────── */
#tooltip {
  position: fixed; background: #0a0a0a; color: var(--white);
  padding: 10px 14px; font-family: 'DM Mono', monospace; font-size: 11px;
  border: 1px solid #252525; pointer-events: none; opacity: 0;
  transition: opacity 0.1s ease; z-index: 9999; min-width: 130px;
}
.tt-week { font-size: 13px; letter-spacing: 1px; margin-bottom: 3px; }
.tt-age  { color: var(--dim); font-size: 10px; margin-bottom: 2px; }
.tt-date { color: var(--dim2); font-size: 9px; margin-bottom: 4px; letter-spacing: 0.5px; }
.tt-phase { font-size: 9px; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 3px; }
.tt-status { font-size: 8px; letter-spacing: 1px; color: #444; }
.tt-hint { font-size: 8px; color: #333; margin-top: 5px; border-top: 1px solid #1a1a1a; padding-top: 5px; }

/* ─── ANIMATIONS ─────────────────────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── SCROLLBAR ──────────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 3px; }
::-webkit-scrollbar-track { background: var(--black); }
::-webkit-scrollbar-thumb { background: #222; }
::-webkit-scrollbar-thumb:hover { background: #444; }

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE BREAKPOINTS
   ═══════════════════════════════════════════════════════════════ */

/* ── Tablet landscape ── */
@media (max-width: 1024px) {
  :root { --panel-w: 320px; }
  .stat-item { padding: 8px 20px; }
}

/* ── Tablet / large phone ── */
@media (max-width: 768px) {
  :root { --grid-gap: 2px; --panel-w: 100vw; }

  /* Header */
  .app-header { padding: 12px 16px; gap: 8px; }
  .header-sub { display: none; }
  .reset-btn span { display: none; }
  .icon-btn { width: 30px; height: 30px; font-size: 14px; }

  /* Countdown */
  .countdown-bar { padding: 12px 16px; }
  .cd-unit { min-width: 40px; }
  .cd-colon { padding: 0 2px; padding-bottom: 12px; }

  /* Stats */
  .stats-bar { padding: 16px 12px; }
  .stat-divider { display: none; }
  .stat-item { flex: 1 1 40%; padding: 8px 12px; }

  /* Slider */
  .slider-bar { padding: 12px 16px; }

  /* Grid */
  .grid-wrapper { padding: 16px 10px 10px; }
  .grid-layout { gap: 6px; }
  .decade-col { width: 24px; }
  .decade-label { font-size: 7px; }
  .phase-legend { gap: 8px 14px; margin-bottom: 12px; padding-bottom: 12px; }
  .legend-text { font-size: 8px; }

  /* Panel — full height drawer from bottom on mobile */
  .reflection-panel {
    top: auto; bottom: 0; right: 0; left: 0; width: 100vw; height: 75vh;
    border-left: none; border-top: 1px solid var(--border2);
    transform: translateY(100%);
    border-radius: 0;
  }
  .reflection-panel.open { transform: translateY(0); }

  /* Share modal */
  .share-modal { padding: 32px 24px; }
  .share-card { font-size: 10px; padding: 16px; }

  /* Footer */
  .app-footer { padding: 20px 16px; }
  .footer-meta { font-size: 8px; }

  /* Tooltip — hidden on mobile (use panel) */
  #tooltip { display: none; }
}

/* ── Small phones ── */
@media (max-width: 480px) {
  :root { --grid-gap: 1.5px; }

  .hero-title { letter-spacing: -1px; }

  /* Countdown: hide days & hours on very small */
  .cd-unit:nth-child(3),
  .cd-unit:nth-child(4),
  .cd-colon:nth-child(4) { /* keep all on 480, hide below */ }

  .app-header { padding: 10px 12px; }
  .app-logo { font-size: 15px; }

  .stats-bar { padding: 12px 8px; row-gap: 4px; }
  .stat-value { font-size: 20px; }
  .stat-item { flex: 1 1 42%; padding: 6px 8px; }

  /* Picker */
  .select-wrap select { padding: 12px 8px; font-size: 13px; }
  #pick-month { min-width: 100px !important; }

  /* Grid wrapper tight */
  .grid-wrapper { padding: 12px 6px 8px; }
  .decade-col { width: 20px; }
  .decade-label { font-size: 6px; }
  .grid-layout { gap: 4px; }

  /* Legend compact */
  .phase-legend { gap: 6px 10px; }
  .legend-dot { width: 6px; height: 6px; }
  .legend-text { font-size: 7.5px; letter-spacing: 1px; }

  /* Reflection panel */
  .reflection-panel { height: 82vh; padding: 28px 20px; }
  .panel-week-num { font-size: 20px; }

  /* Share modal */
  .share-modal { padding: 24px 16px; }
}

/* ── Tiny phones (320px) ── */
@media (max-width: 360px) {
  :root { --grid-gap: 1px; }
  .countdown-digits { gap: 0; }
  .cd-unit { min-width: 34px; }
  .cd-unit span { font-size: 18px; }
  .cd-unit em { font-size: 6px; }
  .cd-colon { font-size: 16px; }
  .stat-value { font-size: 17px; }

  /* On 320px, show only 3 countdown units */
  .cd-unit:nth-child(7),
  .cd-unit:nth-child(8),
  .cd-colon:nth-child(7) { display: none; }
}

/* ── Large screens / desktop ── */
@media (min-width: 1280px) {
  .grid-wrapper { padding: 28px 32px 24px; }
  .grid-layout { max-width: 1120px; }
  :root { --grid-gap: 3px; }
}

/* ── 4K ── */
@media (min-width: 2560px) {
  :root { --grid-gap: 4px; }
  .grid-layout { max-width: 1400px; }
}