:root {
  --ink: #3d6e8f;
  --ink-dark: #2d5877;
  --muted: #7895a9;
  --gold: #d8b96e;
  --paper: #fffefd;
  --serif: "Cormorant Garamond", Georgia, serif;
  --display: "Petit Formal Script", "Segoe Script", cursive;
  --caps: "Italiana", "Times New Roman", serif;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 8% 5%, rgba(186, 224, 239, 0.7), transparent 30rem),
    radial-gradient(circle at 95% 40%, rgba(240, 220, 169, 0.3), transparent 28rem),
    #eef7fb;
  color: var(--ink-dark);
  font-family: var(--serif);
}

button,
input {
  font: inherit;
}

a {
  color: inherit;
}

.site-header {
  display: flex;
  width: min(100% - 32px, 1120px);
  margin: 0 auto;
  padding: 20px 0;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.site-header__brand img {
  display: block;
  width: 150px;
  height: 50px;
  object-fit: contain;
}

.site-header__nav {
  display: flex;
  align-items: center;
  gap: 18px;
}

.site-header__nav a {
  color: var(--ink);
  font-family: var(--caps);
  font-size: 0.72rem;
  letter-spacing: 0.09em;
  text-decoration: none;
  text-transform: uppercase;
}

.page {
  width: min(100% - 32px, 1120px);
  margin: 0 auto;
  padding: clamp(20px, 4vw, 48px) 0 70px;
}

.hero {
  max-width: 680px;
  margin: 0 auto clamp(24px, 4vw, 40px);
  text-align: center;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--muted);
  font-family: var(--caps);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  color: var(--ink);
  font-family: var(--display);
  font-size: clamp(2.8rem, 8vw, 5.5rem);
  font-weight: 400;
  line-height: 1.05;
}

.hero__intro {
  max-width: 520px;
  margin: 12px auto 0;
  color: #6a8a9e;
  font-size: clamp(0.95rem, 1.9vw, 1.12rem);
  line-height: 1.5;
}

.mission-counter {
  display: inline-block;
  margin: 14px auto 0;
  padding: 8px 18px;
  border: 1px solid rgba(216, 185, 110, 0.5);
  border-radius: 30px;
  background: rgba(255, 255, 255, 0.75);
  color: #5f829a;
  font-size: clamp(0.82rem, 1.8vw, 1rem);
}

.challenges {
  display: grid;
  margin-bottom: 34px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.challenge-option {
  position: relative;
}

.challenge-option input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.challenge-card {
  display: flex;
  min-height: 120px;
  padding: 22px;
  border: 1px solid rgba(61, 110, 143, 0.2);
  background: rgba(255, 254, 253, 0.9);
  box-shadow: 0 12px 30px rgba(45, 88, 119, 0.08);
  cursor: pointer;
  align-items: center;
  gap: 16px;
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.challenge-card:hover {
  border-color: rgba(61, 110, 143, 0.48);
  transform: translateY(-2px);
}

.challenge-option input:checked + .challenge-card {
  border-color: var(--gold);
  box-shadow: 0 14px 36px rgba(45, 88, 119, 0.15), inset 0 0 0 1px var(--gold);
}

.challenge-option input:focus-visible + .challenge-card {
  outline: 2px solid var(--ink);
  outline-offset: 4px;
}

.challenge-card__number {
  color: var(--gold);
  font-family: var(--caps);
  font-size: 2rem;
}

.challenge-card strong {
  color: var(--ink);
  font-size: clamp(1.05rem, 2.2vw, 1.3rem);
  font-weight: 600;
  line-height: 1.25;
}

.upload-panel {
  max-width: 720px;
  margin: 0 auto;
  padding: clamp(24px, 5vw, 44px);
  border: 1px solid rgba(61, 110, 143, 0.2);
  background:
    radial-gradient(circle at 100% 0, rgba(161, 213, 235, 0.25), transparent 35%),
    var(--paper);
  box-shadow: 0 22px 55px rgba(45, 88, 119, 0.13);
}

.upload-panel h2 {
  margin: 0 0 20px;
  color: var(--ink);
  font-family: var(--display);
  font-size: clamp(2.2rem, 6vw, 3.5rem);
  font-weight: 400;
  text-align: center;
}

.hunt-form fieldset {
  display: grid;
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
  gap: 18px;
}

.hunt-form__field {
  display: grid;
  gap: 7px;
}

.hunt-form__field > span {
  color: var(--muted);
  font-family: var(--caps);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hunt-form__field input[type="text"] {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid rgba(61, 110, 143, 0.3);
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--ink-dark);
}

.file-field {
  padding: 18px;
  border: 1px dashed rgba(61, 110, 143, 0.42);
  background: rgba(238, 247, 251, 0.55);
  cursor: pointer;
  text-align: center;
}

.file-field input {
  width: min(100%, 330px);
  color: var(--muted);
}

.file-field small {
  display: block;
  margin-top: 7px;
  color: var(--muted);
}

.photo-preview {
  overflow: hidden;
  max-width: 420px;
  margin: 0 auto;
  border: 8px solid #fff;
  box-shadow: 0 12px 30px rgba(45, 88, 119, 0.14);
}

.photo-preview img {
  display: block;
  width: 100%;
  max-height: 440px;
  object-fit: contain;
}

.primary-button,
.load-more {
  justify-self: center;
  padding: 11px 24px;
  border: 1px solid var(--ink);
  border-radius: 30px;
  background: var(--ink);
  color: #fff;
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.primary-button:disabled,
.load-more:disabled {
  cursor: wait;
  opacity: 0.55;
}

/* ── Stato / loading ─────────────────────────────────────────────── */
.status {
  min-height: 1.4em;
  margin: 0 0 18px;
  color: var(--muted);
  font-family: var(--caps);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-align: center;
  text-transform: uppercase;
}

.status.is-error {
  color: #9a4a4a;
}

.gallery {
  columns: 3;
  column-gap: 22px;
}

.gallery-card {
  break-inside: avoid;
  display: inline-block;
  width: 100%;
  overflow: hidden;
  margin-bottom: 22px;
  border: 1px solid rgba(61, 110, 143, 0.13);
  border-radius: 10px;
  background: var(--paper);
  box-shadow: 0 8px 28px rgba(45, 88, 119, 0.09);
  cursor: pointer;
  vertical-align: top;
  transition: transform 200ms ease, box-shadow 200ms ease;
}

.gallery-card:hover {
  box-shadow: 0 18px 50px rgba(45, 88, 119, 0.18);
  transform: translateY(-5px);
}

.gallery-card__image {
  display: block;
  background: #dfeef5;
}

.gallery-card__image img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
  transition: transform 350ms ease;
}

.gallery-card:hover .gallery-card__image img {
  transform: scale(1.03);
}

.gallery-card__body {
  padding: 14px 16px 16px;
}

/* Badge missione */
.gallery-card__badge {
  display: inline-block;
  margin-bottom: 8px;
  padding: 3px 10px;
  border: 1px solid rgba(216, 185, 110, 0.5);
  border-radius: 20px;
  background: rgba(216, 185, 110, 0.1);
  color: #9a7c3c;
  font-family: var(--caps);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.gallery-card__author {
  margin: 0 0 3px;
  color: var(--ink);
  font-family: var(--display);
  font-size: 1.25rem;
  font-weight: 400;
  line-height: 1.1;
}

.gallery-card__meta {
  margin: 0 0 12px;
  color: var(--muted);
  font-family: var(--caps);
  font-size: 0.58rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.like-button {
  display: inline-flex;
  padding: 6px 13px;
  border: 1px solid rgba(199, 123, 136, 0.35);
  border-radius: 30px;
  background: rgba(255, 245, 247, 0.7);
  color: #a94e61;
  cursor: pointer;
  font-family: var(--caps);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: background 150ms ease, border-color 150ms ease, transform 120ms ease;
}

.like-button:hover {
  background: rgba(255, 235, 240, 0.95);
  border-color: #c77b88;
}

.like-button__heart {
  display: inline-block;
  font-size: 1em;
  line-height: 1;
}

@keyframes heartbeat {
  0%   { transform: scale(1); }
  25%  { transform: scale(1.55); }
  55%  { transform: scale(0.9); }
  80%  { transform: scale(1.15); }
  100% { transform: scale(1); }
}

.like-button__heart.is-beating {
  animation: heartbeat 0.45s ease;
}

.like-button[aria-pressed="true"] {
  border-color: #c77b88;
  background: #fff0f3;
  color: #a94e61;
}

/* ── Divisore ornamentale sotto la hero ──────────────────────────── */
.hero-divider {
  display: flex;
  width: min(320px, 55%);
  margin: 0 auto clamp(20px, 4vw, 36px);
  align-items: center;
  gap: 10px;
}

.hero-divider::before,
.hero-divider::after {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(216, 185, 110, 0.7));
  content: "";
  flex: 1;
}

.hero-divider::after {
  background: linear-gradient(90deg, rgba(216, 185, 110, 0.7), transparent);
}

.hero-divider__gem {
  width: 6px;
  height: 6px;
  border: 1.5px solid var(--gold);
  transform: rotate(45deg);
  flex-shrink: 0;
}

/* ── Filtri galleria ─────────────────────────────────────────────── */
.gallery-filters {
  display: flex;
  margin-bottom: clamp(24px, 4vw, 40px);
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
}

.gallery-filter {
  padding: 8px 16px;
  border: 1px solid rgba(61, 110, 143, 0.22);
  border-radius: 30px;
  background: rgba(255, 254, 253, 0.88);
  color: var(--muted);
  cursor: pointer;
  font-family: var(--caps);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  transition: border-color 150ms ease, background 150ms ease, color 150ms ease, box-shadow 150ms ease;
}

.gallery-filter.is-active {
  border-color: var(--gold);
  background: var(--ink);
  box-shadow: 0 6px 18px rgba(45, 88, 119, 0.22);
  color: #fff;
}

.gallery-filter:hover:not(.is-active) {
  border-color: rgba(61, 110, 143, 0.55);
  color: var(--ink);
}

/* ── Bottone share ───────────────────────────────────────────────── */
.share-button {
  display: inline-flex;
  padding: 6px 13px;
  border: 1px solid rgba(61, 110, 143, 0.22);
  border-radius: 30px;
  background: rgba(255, 254, 253, 0.8);
  color: var(--muted);
  cursor: pointer;
  font-family: var(--caps);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  align-items: center;
  gap: 5px;
  transition: border-color 150ms ease, color 150ms ease;
}

.share-button:hover {
  border-color: var(--ink);
  color: var(--ink);
}

.gallery-card__actions {
  display: flex;
  gap: 7px;
  flex-wrap: wrap;
}

/* ── Stato / loading ─────────────────────────────────────────────── */

.empty-state {
  padding: 60px 20px;
  color: var(--muted);
  text-align: center;
}

.empty-state strong {
  display: block;
  color: var(--ink);
  font-family: var(--display);
  font-size: 2.2rem;
  font-weight: 400;
}

.load-more {
  display: block;
  margin: 32px auto 0;
}

button:focus-visible,
input:focus-visible,
a:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 4px;
}

@media (max-width: 820px) {
  .gallery {
    columns: 2;
  }
}

@media (max-width: 600px) {
  .site-header {
    align-items: flex-start;
  }

  .site-header__nav {
    align-items: flex-end;
    flex-direction: column;
    gap: 9px;
  }

  .challenges,
  .gallery {
    columns: 1;
  }

  .challenge-card {
    min-height: 96px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}