:root {
  --cream: #fff7f1;
  --petal: #ffd9df;
  --rose: #d94e73;
  --rose-deep: #9f294f;
  --ink: #241720;
  --muted: #78626b;
  --midnight: #25233d;
  --blue: #49658f;
  --gold: #d9a441;
  --white: rgba(255, 255, 255, 0.78);
  --line: rgba(86, 50, 67, 0.14);
  --shadow: 0 24px 70px rgba(89, 47, 63, 0.18);
  --page-bg:
    radial-gradient(circle at 18% 8%, rgba(255, 217, 223, 0.95), transparent 30rem),
    radial-gradient(circle at 92% 20%, rgba(73, 101, 143, 0.22), transparent 28rem),
    linear-gradient(140deg, #fff7f1 0%, #ffeef0 42%, #eef2ff 100%);
  --surface-bg: rgba(255, 255, 255, 0.54);
  --surface-border: rgba(255, 255, 255, 0.78);
  --tag-bg: rgba(255, 255, 255, 0.7);
  --count-bg: rgba(255, 247, 241, 0.78);
  --card-bg:
    linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(255, 247, 241, 0.78)),
    linear-gradient(135deg, rgba(255, 217, 223, 0.4), rgba(238, 242, 255, 0.42));
  --card-text: #332530;
  --empty-bg: rgba(255, 255, 255, 0.42);
  --hero-overlay: linear-gradient(to top, rgba(18, 16, 31, 0.58), transparent 54%);
  --hero-tint: linear-gradient(120deg, rgba(37, 35, 61, 0.82), rgba(159, 41, 79, 0.45));
}

html[data-theme="night"] {
  --cream: #11111f;
  --petal: #473249;
  --rose: #ff7fa0;
  --rose-deep: #ffadc1;
  --ink: #fff7f1;
  --muted: #cfbec8;
  --midnight: #0c1020;
  --blue: #adc8ff;
  --gold: #f0c66c;
  --line: rgba(255, 247, 241, 0.16);
  --shadow: 0 24px 70px rgba(3, 6, 18, 0.42);
  --page-bg:
    radial-gradient(circle at 18% 8%, rgba(217, 78, 115, 0.28), transparent 30rem),
    radial-gradient(circle at 90% 16%, rgba(83, 120, 190, 0.22), transparent 28rem),
    linear-gradient(140deg, #0e1020 0%, #1a1324 48%, #101a2f 100%);
  --surface-bg: rgba(18, 19, 34, 0.72);
  --surface-border: rgba(255, 247, 241, 0.13);
  --tag-bg: rgba(255, 247, 241, 0.08);
  --count-bg: rgba(255, 247, 241, 0.08);
  --card-bg:
    linear-gradient(180deg, rgba(29, 28, 47, 0.92), rgba(20, 20, 36, 0.88)),
    linear-gradient(135deg, rgba(255, 127, 160, 0.13), rgba(173, 200, 255, 0.12));
  --card-text: #fff7f1;
  --empty-bg: rgba(255, 247, 241, 0.07);
  --hero-overlay: linear-gradient(to top, rgba(6, 8, 18, 0.68), transparent 58%);
  --hero-tint: linear-gradient(120deg, rgba(6, 8, 18, 0.78), rgba(68, 28, 56, 0.42));
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--cream);
}

body {
  min-height: 100%;
  margin: 0;
  color: var(--ink);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--page-bg);
  transition: background 220ms ease, color 220ms ease;
}

button,
input {
  font: inherit;
}

.app-shell {
  width: min(1180px, calc(100% - 28px));
  margin: 0 auto;
  padding: 24px 0 56px;
}

.top-bar {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 14px;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 42px;
  padding: 7px 12px 7px 8px;
  border: 1px solid var(--surface-border);
  border-radius: 999px;
  color: var(--ink);
  background: var(--surface-bg);
  box-shadow: 0 12px 28px rgba(89, 47, 63, 0.1);
  cursor: pointer;
  backdrop-filter: blur(14px);
  transition: transform 180ms ease, background 180ms ease, color 180ms ease, border-color 180ms ease;
}

.theme-toggle:hover {
  transform: translateY(-1px);
}

.theme-toggle-track {
  position: relative;
  width: 48px;
  height: 28px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--rose), var(--gold));
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.28);
}

.theme-toggle-thumb {
  position: absolute;
  top: 4px;
  left: 4px;
  width: 20px;
  height: 20px;
  border-radius: 999px;
  background: #fffaf7;
  box-shadow: 0 4px 10px rgba(36, 23, 32, 0.24);
  transition: transform 180ms ease, background 180ms ease;
}

html[data-theme="night"] .theme-toggle-track {
  background: linear-gradient(135deg, #26375f, var(--rose-deep));
}

html[data-theme="night"] .theme-toggle-thumb {
  transform: translateX(20px);
  background: #fbf0c9;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(260px, 0.65fr);
  gap: 24px;
  min-height: clamp(430px, 68vh, 690px);
  align-items: end;
  padding: clamp(28px, 6vw, 68px);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.66);
  border-radius: 28px;
  box-shadow: var(--shadow);
  background:
    var(--hero-tint),
    url("collage-cover.jpg")
      center / cover;
  color: #fffaf7;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--hero-overlay);
  pointer-events: none;
}

.hero-copy,
.anniversary-panel {
  position: relative;
  z-index: 1;
}

.eyebrow {
  margin: 0 0 8px;
  color: inherit;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.72;
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  max-width: 760px;
  font-family: "Playfair Display", Georgia, serif;
  font-size: clamp(3rem, 10vw, 7.4rem);
  line-height: 0.88;
}

h2 {
  font-size: clamp(1.45rem, 3vw, 2.25rem);
  line-height: 1.05;
}

.hero-text {
  max-width: 640px;
  margin: 22px 0 0;
  color: rgba(255, 250, 247, 0.84);
  font-size: clamp(1rem, 2vw, 1.25rem);
  line-height: 1.65;
}

.anniversary-panel {
  align-self: stretch;
  display: flex;
  min-height: 210px;
  flex-direction: column;
  justify-content: flex-end;
  gap: 12px;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-radius: 22px;
  background: rgba(255, 247, 241, 0.16);
  backdrop-filter: blur(1px);
}

.panel-label {
  color: rgba(255, 250, 247, 0.72);
  font-size: 0.84rem;
  font-weight: 700;
  text-transform: uppercase;
}

#anniversary-count {
  font-size: clamp(2.2rem, 6vw, 4.8rem);
  line-height: 0.95;
}

#anniversary-subtitle {
  color: rgba(255, 250, 247, 0.78);
  line-height: 1.5;
}

.controls,
.message-stage {
  margin-top: 28px;
  padding: clamp(22px, 4vw, 34px);
  border: 1px solid var(--surface-border);
  border-radius: 24px;
  background: var(--surface-bg);
  box-shadow: 0 18px 50px rgba(89, 47, 63, 0.1);
  backdrop-filter: blur(14px);
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: center;
  gap: 20px;
  text-align: center;
}

.section-heading .eyebrow,
.results-bar .eyebrow {
  color: var(--rose-deep);
}

.tag-row {
  display: flex;
  gap: 12px;
  margin: 16px -8px -8px;
  padding: 8px 28px 22px 8px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
}

.topic-tag {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 52px;
  min-width: 78px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  background: var(--tag-bg);
  cursor: pointer;
  scroll-snap-align: start;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, color 180ms ease;
}

.topic-tag:hover {
  transform: translateY(-2px);
  border-color: rgba(217, 78, 115, 0.38);
}

.topic-tag[aria-selected="true"] {
  color: #fffaf7;
  border-color: transparent;
  background: linear-gradient(135deg, var(--rose), var(--midnight));
  box-shadow: 0 10px 22px rgba(159, 41, 79, 0.22);
}

.topic-tag .emoji {
  font-size: 1.24rem;
}

.topic-tag .count {
  color: inherit;
  opacity: 0.64;
  font-size: 0.82rem;
  font-weight: 800;
}

.results-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 22px;
}

.result-count {
  flex: 0 0 auto;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--rose-deep);
  background: var(--count-bg);
  font-size: 0.88rem;
  font-weight: 800;
}

.message-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.message-card {
  display: flex;
  min-height: 210px;
  flex-direction: column;
  justify-content: space-between;
  gap: 20px;
  padding: 20px;
  border: 1px solid rgba(86, 50, 67, 0.12);
  border-radius: 18px;
  background: var(--card-bg);
  box-shadow: 0 14px 34px rgba(89, 47, 63, 0.09);
  animation: cardIn 360ms ease both;
}

.message-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
}

.sender {
  display: inline-flex;
  align-items: center;
  max-width: 100%;
  min-height: 30px;
  padding: 5px 10px;
  border: 1px solid color-mix(in srgb, var(--rose-deep) 62%, transparent);
  border-radius: 999px;
  color: var(--rose-deep);
  background: color-mix(in srgb, var(--rose-deep) 10%, transparent);
  line-height: 1;
}

.from-alan .sender {
  border-color: color-mix(in srgb, var(--blue) 62%, transparent);
  color: var(--blue);
  background: color-mix(in srgb, var(--blue) 10%, transparent);
}

.message-text {
  margin: 0;
  color: var(--card-text);
  font-size: 1rem;
  line-height: 1.65;
  overflow-wrap: anywhere;
}

.message-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.mini-tag {
  padding: 7px 10px;
  border-radius: 999px;
  color: var(--blue);
  background: rgba(73, 101, 143, 0.1);
  font-size: 0.76rem;
  font-weight: 800;
}

.empty-state {
  grid-column: 1 / -1;
  padding: 34px;
  border: 1px dashed rgba(159, 41, 79, 0.28);
  border-radius: 18px;
  color: var(--muted);
  background: var(--empty-bg);
  line-height: 1.6;
}

@keyframes cardIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 880px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: 620px;
    align-items: end;
  }

  .anniversary-panel {
    min-height: 180px;
  }

  .message-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .app-shell {
    width: min(100% - 20px, 1180px);
    padding-top: 10px;
  }

  .hero {
    min-height: calc(100svh - 20px);
    padding: 26px;
    border-radius: 22px;
    background-position: 58% center;
  }

  h1 {
    font-size: clamp(3.15rem, 18vw, 5rem);
  }

  .hero-text {
    font-size: 1rem;
  }

  .controls,
  .message-stage {
    margin-top: 18px;
    padding: 20px 16px;
    border-radius: 20px;
  }

  .results-bar {
    align-items: flex-start;
    flex-direction: column;
  }

  .message-grid {
    grid-template-columns: 1fr;
  }

  .message-card {
    min-height: 0;
    padding: 18px;
  }

}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
    animation: none !important;
  }
}