/* ファインダー — 覗くと、詩が見える */

@font-face {
  font-family: "立冬のころに";
  src:
    local("立冬のころに"),
    local("AsWinterBegins"),
    url("fonts/AsWinterBegins.otf") format("opentype"),
    url("fonts/AsWinterBegins.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  --bg: #0e0d0c;
  --finder-width: min(68vw, 440px);
  --finder-height: min(51vw, 330px);
  --finder-half: min(25.5vw, 165px);
  --finder-green: rgba(160, 210, 170, 0.55);
  --finder-green-bright: rgba(190, 235, 200, 0.85);
  --text: #e8e4dc;
  --text-muted: rgba(232, 228, 220, 0.65);
  --accent: #c4a882;
  --font-main: "立冬のころに", "Yu Mincho", serif;
}

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

html,
body {
  height: 100%;
  overflow: hidden;
}

body {
  font-family: var(--font-main);
  background: var(--bg);
  color: var(--text);
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

/* ========================================
   Opening
   ======================================== */

.opening {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000;
  transition: opacity 1.4s ease;
}

.opening.is-hidden {
  opacity: 0;
  pointer-events: none;
}

.opening-inner {
  text-align: center;
}

.opening-text {
  font-size: 1.1rem;
  letter-spacing: 0.65em;
  color: rgba(232, 228, 220, 0.92);
  padding-left: 0.65em;
  opacity: 0;
  animation: openingFadeIn 2.2s ease forwards;
}

.opening-enter {
  margin-top: 1.75rem;
  border: none;
  background: none;
  font-family: var(--font-main);
  font-size: 0.95rem;
  letter-spacing: 0.18em;
  color: var(--finder-green);
  cursor: pointer;
  opacity: 0;
  padding: 0.6rem 0.5rem;
  animation: openingFadeIn 2.2s ease 0.6s forwards;
  transition: color 0.3s ease, opacity 0.3s ease;
}

.opening-enter:hover {
  color: var(--finder-green-bright);
}

@keyframes openingFadeIn {
  0% {
    opacity: 0;
    transform: translateY(10px);
  }
  35% {
    opacity: 1;
    transform: translateY(0);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

body.is-opening .camera-body {
  opacity: 0;
}

body.is-ready .camera-body {
  opacity: 1;
}

.camera-body {
  position: relative;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(ellipse at center, #1a1816 0%, var(--bg) 70%);
  transition: opacity 1.2s ease 0.2s;
  padding:
    env(safe-area-inset-top, 0)
    env(safe-area-inset-right, 0)
    env(safe-area-inset-bottom, 0)
    env(safe-area-inset-left, 0);
}

/* ========================================
   Date archive (left)
   ======================================== */

/* ========================================
   Side panel — profile + archive
   ======================================== */

.side-panel {
  position: fixed;
  left: 2rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 5;
  max-height: 80vh;
  overflow-y: auto;
  opacity: 0.45;
  transition: opacity 0.4s ease;
  scrollbar-width: none;
}

.side-panel::-webkit-scrollbar {
  display: none;
}

.side-panel:hover {
  opacity: 0.72;
}

.side-profile {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(160, 210, 170, 0.12);
}

.side-profile-label {
  font-family: "Courier New", monospace;
  font-size: 0.55rem;
  letter-spacing: 0.25em;
  color: var(--finder-green);
  margin-bottom: 0.75rem;
}

.side-profile-name {
  border: none;
  background: none;
  padding: 0;
  font-size: 0.82rem;
  letter-spacing: 0.18em;
  color: rgba(232, 228, 220, 0.75);
  cursor: pointer;
  text-align: left;
  transition: color 0.3s ease;
}

.side-profile-name:hover,
.side-profile-name.is-active {
  color: var(--finder-green-bright);
}

.date-archive {
  position: static;
  transform: none;
  max-height: none;
  overflow: visible;
  opacity: 1;
}

.archive-year {
  font-family: "Courier New", monospace;
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  color: var(--finder-green);
  margin-bottom: 0.75rem;
}

.archive-year + .archive-list {
  margin-bottom: 1.75rem;
}

.archive-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.archive-item {
  display: block;
  border: none;
  background: none;
  padding: 0.2rem 0;
  cursor: pointer;
  font-family: "Courier New", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: rgba(232, 228, 220, 0.5);
  text-align: left;
  transition: color 0.3s ease, opacity 0.3s ease;
}

.archive-item:hover {
  color: rgba(232, 228, 220, 0.85);
}

.archive-item.is-active {
  color: var(--finder-green-bright);
  opacity: 1;
  font-size: 0.78rem;
}

.archive-date {
  display: block;
}

.archive-day {
  display: block;
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  color: rgba(232, 228, 220, 0.35);
  margin-top: 0.15rem;
}

/* ========================================
   Viewfinder frame
   ======================================== */

.finder-outer {
  position: relative;
  width: var(--finder-width);
  height: var(--finder-height);
  aspect-ratio: 4 / 3;
  padding: 0.35rem;
  background: #1c1a18;
  border-radius: 4px;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.06),
    0 20px 60px rgba(0, 0, 0, 0.6),
    inset 0 0 40px rgba(0, 0, 0, 0.5);
}

.finder-frame {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  border-radius: 2px;
  cursor: crosshair;
}

.finder-glass {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(30, 45, 35, 0.4) 0%, rgba(20, 25, 30, 0.6) 100%),
    url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' 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)' opacity='0.04'/%3E%3C/svg%3E");
  transform-origin: center center;
  transition: transform 0.15s ease-out;
}

.finder-grid {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(var(--finder-green) 1px, transparent 1px) 33.33% 0 / 1px 100% no-repeat,
    linear-gradient(var(--finder-green) 1px, transparent 1px) 66.66% 0 / 1px 100% no-repeat,
    linear-gradient(90deg, var(--finder-green) 1px, transparent 1px) 0 33.33% / 100% 1px no-repeat,
    linear-gradient(90deg, var(--finder-green) 1px, transparent 1px) 0 66.66% / 100% 1px no-repeat;
  opacity: 0.35;
  pointer-events: none;
}

.finder-corners span {
  position: absolute;
  width: 18px;
  height: 18px;
  border-color: var(--finder-green-bright);
  border-style: solid;
  border-width: 0;
  opacity: 0.7;
}

.finder-corners span:nth-child(1) {
  top: 12px;
  left: 12px;
  border-top-width: 1.5px;
  border-left-width: 1.5px;
}

.finder-corners span:nth-child(2) {
  top: 12px;
  right: 12px;
  border-top-width: 1.5px;
  border-right-width: 1.5px;
}

.finder-corners span:nth-child(3) {
  bottom: 12px;
  left: 12px;
  border-bottom-width: 1.5px;
  border-left-width: 1.5px;
}

.finder-corners span:nth-child(4) {
  bottom: 12px;
  right: 12px;
  border-bottom-width: 1.5px;
  border-right-width: 1.5px;
}

.finder-focus {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 48px;
  height: 48px;
  transform: translate(-50%, -50%);
  border: 1px solid var(--finder-green);
  border-radius: 2px;
  opacity: 0.5;
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.finder-frame.is-aiming .finder-focus {
  opacity: 0.85;
  transform: translate(-50%, -50%) scale(0.92);
}

.finder-vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 40%, rgba(0, 0, 0, 0.45) 100%);
  pointer-events: none;
  z-index: 2;
}

/* ========================================
   Shutter curtain
   ======================================== */

.shutter-curtain {
  position: absolute;
  inset: 0;
  z-index: 15;
  pointer-events: none;
  overflow: hidden;
}

.shutter-blade {
  position: absolute;
  left: 0;
  width: 100%;
  height: 50.5%;
  background: linear-gradient(180deg, #141414 0%, #080808 100%);
  transition: transform 0.14s cubic-bezier(0.55, 0.06, 0.68, 0.19);
  will-change: transform;
}

.shutter-blade-top {
  top: 0;
  transform: translateY(-101%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.shutter-blade-bottom {
  bottom: 0;
  transform: translateY(101%);
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  background: linear-gradient(0deg, #141414 0%, #080808 100%);
}

.shutter-curtain.is-closing .shutter-blade-top,
.shutter-curtain.is-closing .shutter-blade-bottom {
  transform: translateY(0);
}

.shutter-curtain.is-opening .shutter-blade-top {
  transform: translateY(-101%);
  transition-timing-function: cubic-bezier(0.22, 1, 0.36, 1);
  transition-duration: 0.18s;
}

.shutter-curtain.is-opening .shutter-blade-bottom {
  transform: translateY(101%);
  transition-timing-function: cubic-bezier(0.22, 1, 0.36, 1);
  transition-duration: 0.18s;
}

.shutter-curtain.is-closing::after {
  content: "";
  position: absolute;
  inset: 0;
  background: #000;
  opacity: 0;
  animation: shutterFlash 0.14s ease forwards;
}

@keyframes shutterFlash {
  0% { opacity: 0; }
  70% { opacity: 0.35; }
  100% { opacity: 0; }
}

/* ========================================
   Poem inside viewfinder
   ======================================== */

.poem-stage {
  position: absolute;
  inset: 0;
}

.poem-card {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.7s ease;
  pointer-events: none;
  overflow: hidden;
}

.poem-card.is-active {
  opacity: 1;
  pointer-events: auto;
}

.poem-card.is-leaving {
  opacity: 0;
}

.profile-card {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.7s ease;
  pointer-events: none;
  overflow: hidden;
}

.profile-card.is-active {
  opacity: 1;
  pointer-events: auto;
}

.profile-content {
  position: relative;
  z-index: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2.5rem 2rem;
  background: rgba(8, 12, 10, 0.5);
  text-align: center;
}

.profile-title {
  font-size: 0.9rem;
  letter-spacing: 0.35em;
  color: var(--finder-green-bright);
  margin-bottom: 1rem;
}

.profile-lead {
  font-size: 0.62rem;
  line-height: 2.4;
  letter-spacing: 0.12em;
  color: rgba(232, 228, 220, 0.8);
  margin-bottom: 1.5rem;
  max-width: 280px;
}

.profile-details {
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
}

.profile-details dt {
  color: var(--finder-green);
  margin-top: 0.85rem;
  font-size: 0.5rem;
  letter-spacing: 0.18em;
}

.profile-details dt:first-child {
  margin-top: 0;
}

.profile-details dd {
  color: rgba(232, 228, 220, 0.7);
  line-height: 2;
}

.profile-x-link {
  font-size: 0.55rem;
  letter-spacing: 0.1em;
  color: var(--finder-green-bright);
  text-decoration: none;
  border: 1px solid rgba(190, 235, 200, 0.35);
  padding: 0.55rem 1rem;
  transition: background 0.3s ease, color 0.3s ease;
}

.profile-x-link:hover {
  background: rgba(190, 235, 200, 0.12);
}

.finder-photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.88) brightness(0.75);
}

.poem-content {
  position: relative;
  z-index: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 2.5rem;
  background: rgba(8, 12, 10, 0.42);
  text-align: center;
}

.poem-title {
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.35em;
  color: var(--finder-green-bright);
  margin-bottom: 0.4rem;
}

.poem-date {
  display: block;
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  margin-bottom: 1.75rem;
}

.poem-body p {
  font-size: 0.72rem;
  line-height: 2.8;
  letter-spacing: 0.2em;
  color: var(--text);
  text-shadow: 0 0 20px rgba(0, 0, 0, 0.8);
}

/* ========================================
   HUD & controls
   ======================================== */

.finder-hud {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: var(--finder-width);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  color: var(--finder-green);
  font-family: "Courier New", monospace;
  opacity: 0.6;
  pointer-events: none;
  padding: 0 0.5rem;
}

.finder-hud-top {
  top: calc(50% - var(--finder-half) - 2rem);
  justify-content: center;
  pointer-events: auto;
}

.finder-hud-bottom {
  bottom: calc(50% - var(--finder-half) - 3rem);
}

.hud-item {
  padding: 0 0.25rem;
}

.hud-link {
  font-family: "Courier New", monospace;
  font-size: 0.55rem;
  letter-spacing: 0.12em;
  color: var(--finder-green);
  text-decoration: none;
  opacity: 0.75;
  transition: opacity 0.3s ease, color 0.3s ease;
}

.hud-link:hover {
  opacity: 1;
  color: var(--finder-green-bright);
}

.hud-hint {
  font-family: var(--font-main);
  font-size: 0.5rem;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

.shutter-btn {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  width: 56px;
  height: 56px;
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 0;
}

.shutter-ring {
  position: absolute;
  inset: 0;
  border: 2px solid rgba(255, 255, 255, 0.25);
  border-radius: 50%;
  transition: border-color 0.3s ease;
}

.shutter-core {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 38px;
  height: 38px;
  transform: translate(-50%, -50%);
  background: rgba(220, 215, 205, 0.9);
  border-radius: 50%;
  transition: transform 0.15s ease, background 0.3s ease;
}

.shutter-btn:hover .shutter-ring {
  border-color: rgba(255, 255, 255, 0.45);
}

.shutter-btn:active .shutter-core {
  transform: translate(-50%, -50%) scale(0.9);
  background: rgba(180, 175, 165, 0.95);
}

.shutter-btn.is-firing .shutter-core {
  animation: shutterClick 0.25s ease;
}

@keyframes shutterClick {
  0% { transform: translate(-50%, -50%) scale(1); }
  50% { transform: translate(-50%, -50%) scale(0.85); }
  100% { transform: translate(-50%, -50%) scale(1); }
}

.poem-dots {
  position: absolute;
  bottom: 5.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.5rem;
}

.poem-dots button {
  width: 5px;
  height: 5px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  cursor: pointer;
  transition: background 0.3s ease, transform 0.3s ease;
}

.poem-dots button.is-active {
  background: var(--finder-green-bright);
  transform: scale(1.3);
}

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 900px) {
  :root {
    --finder-width: min(82vw, 420px);
    --finder-height: min(61.5vw, 315px);
    --finder-half: min(30.75vw, 157.5px);
  }
}

@media (max-width: 600px) {
  :root {
    --finder-width: min(92vw, 400px);
    --finder-height: min(69vw, 300px);
    --finder-half: min(34.5vw, 150px);
  }

  .opening-text {
    font-size: 0.95rem;
    letter-spacing: 0.45em;
  }

  .opening-enter {
    font-size: 0.82rem;
    letter-spacing: 0.12em;
    padding: 0.9rem 1rem;
    min-height: 44px;
  }

  .camera-body {
    justify-content: flex-start;
    padding-top: calc(4.75rem + env(safe-area-inset-top, 0px));
    padding-bottom: calc(5.5rem + env(safe-area-inset-bottom, 0px));
  }

  .finder-outer {
    width: var(--finder-width);
    height: var(--finder-height);
    margin-top: auto;
    margin-bottom: auto;
  }

  .poem-content {
    padding: 1.35rem 1.1rem;
  }

  .poem-title {
    font-size: 0.72rem;
    letter-spacing: 0.22em;
  }

  .poem-date {
    font-size: 0.48rem;
    margin-bottom: 1rem;
  }

  .poem-body p {
    font-size: 0.6rem;
    line-height: 2.2;
    letter-spacing: 0.12em;
  }

  .finder-hud {
    width: min(92vw, 400px);
  }

  .finder-hud-top {
    top: calc(0.85rem + env(safe-area-inset-top, 0px));
  }

  .finder-hud-bottom {
    bottom: calc(6.75rem + env(safe-area-inset-bottom, 0px));
    flex-direction: column;
    gap: 0.2rem;
    text-align: center;
    justify-content: center;
  }

  .hud-link {
    font-size: 0.6rem;
    padding: 0.45rem 0.35rem;
  }

  .hud-hint {
    display: none;
  }

  .shutter-btn {
    bottom: calc(2.6rem + env(safe-area-inset-bottom, 0px));
    width: 60px;
    height: 60px;
  }

  .shutter-core {
    width: 40px;
    height: 40px;
  }

  .poem-dots {
    bottom: calc(5.9rem + env(safe-area-inset-bottom, 0px));
    gap: 0.65rem;
  }

  .poem-dots button {
    width: 7px;
    height: 7px;
  }

  /* 左サイドは上に固定し、ファインダーと被らないようにする */
  .side-panel {
    left: max(0.85rem, env(safe-area-inset-left, 0px));
    right: auto;
    top: calc(0.85rem + env(safe-area-inset-top, 0px));
    bottom: auto;
    transform: none;
    max-height: calc(100dvh - 7.5rem - env(safe-area-inset-bottom, 0px));
    max-width: 38vw;
    opacity: 0.78;
    z-index: 6;
  }

  .side-panel:hover,
  .side-panel:focus-within {
    opacity: 0.95;
  }

  .side-profile {
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
  }

  .side-profile-label {
    font-size: 0.5rem;
    margin-bottom: 0.45rem;
  }

  .side-profile-name {
    font-size: 0.7rem;
    min-height: 32px;
    letter-spacing: 0.14em;
  }

  .profile-content {
    padding: 1.25rem 1rem;
    overflow-y: auto;
  }

  .profile-title {
    font-size: 0.75rem;
    margin-bottom: 0.65rem;
  }

  .profile-lead {
    font-size: 0.52rem;
    line-height: 2;
    margin-bottom: 0.9rem;
  }

  .profile-details {
    font-size: 0.5rem;
    margin-bottom: 0.9rem;
  }

  .profile-details dt {
    margin-top: 0.55rem;
  }

  .profile-x-link {
    font-size: 0.5rem;
    padding: 0.55rem 0.75rem;
  }

  .date-archive {
    max-height: none;
  }

  .archive-year {
    font-size: 0.58rem;
    margin-bottom: 0.5rem;
  }

  .archive-item {
    font-size: 0.58rem;
    min-height: 28px;
    padding: 0.2rem 0;
  }

  .archive-item.is-active {
    font-size: 0.62rem;
  }
}

@media (max-width: 380px) {
  :root {
    --finder-width: min(94vw, 340px);
    --finder-height: min(70.5vw, 255px);
    --finder-half: min(35.25vw, 127.5px);
  }

  .side-panel {
    max-width: 34vw;
  }

  .poem-body p {
    font-size: 0.55rem;
    line-height: 2;
  }

  .profile-lead,
  .profile-details,
  .profile-x-link {
    font-size: 0.46rem;
  }
}