:root {
  --navy: #0a1628;
  --deep-blue: #0d2247;
  --mid-blue: #1a3a6e;
  --gold: #f0b429;
  --gold-light: #ffd770;
  --red: #c0392b;
  --white: #f5f0e8;
  --parchment: #ede0c4;
  --ink: #1a1209;
}

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

body {
  background: var(--navy);
  font-family: 'Barlow', sans-serif;
  color: var(--white);
  min-height: 100vh;
  background-image:
    radial-gradient(ellipse at 20% 50%, rgba(26,58,110,0.4) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(240,180,41,0.08) 0%, transparent 50%),
    url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.02'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

/* ── TABS ── */
.tab-bar {
  display: flex;
  justify-content: center;
  gap: 0;
  padding: 0 2rem;
  margin-bottom: 0;
  position: relative;
  z-index: 10;
}

.tab-btn {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.12);
  border-bottom: none;
  color: rgba(245,240,232,0.5);
  padding: 0.6rem 2rem;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.2s;
  border-radius: 6px 6px 0 0;
}

.tab-btn:hover { color: var(--white); background: rgba(255,255,255,0.08); }

.tab-btn.active {
  background: rgba(240,180,41,0.12);
  border-color: rgba(240,180,41,0.4);
  color: var(--gold);
}

.tab-deck-count {
  display: inline-block;
  background: var(--gold);
  color: var(--navy);
  font-size: 0.7rem;
  font-weight: 700;
  border-radius: 10px;
  padding: 1px 6px;
  margin-left: 6px;
  vertical-align: middle;
  min-width: 20px;
  text-align: center;
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── HEADER ── */
header {
  text-align: center;
  padding: 3rem 2rem 1.5rem;
  position: relative;
}

header::after {
  content: '';
  display: block;
  width: 80%; max-width: 600px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  margin: 1.5rem auto 0;
}

.header-label {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 600; font-size: 0.85rem;
  letter-spacing: 0.3em; color: var(--gold);
  text-transform: uppercase; margin-bottom: 0.5rem;
}

h1 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(3rem, 8vw, 6rem);
  letter-spacing: 0.05em; line-height: 0.9;
  color: var(--white);
  text-shadow: 0 0 40px rgba(240,180,41,0.3);
}

h1 span { color: var(--gold); }

.subtitle {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1.1rem; letter-spacing: 0.15em;
  color: rgba(245,240,232,0.6); margin-top: 0.75rem;
}

/* ── FILTER BAR ── */
.filter-bar {
  display: flex; gap: 0.5rem;
  justify-content: center; flex-wrap: wrap;
  padding: 1.5rem 2rem 0.5rem;
}

.filter-btn {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.15);
  color: rgba(245,240,232,0.7);
  padding: 0.4rem 1rem; border-radius: 2px;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.85rem; letter-spacing: 0.1em;
  text-transform: uppercase; cursor: pointer; transition: all 0.2s;
}

.filter-btn:hover, .filter-btn.active {
  background: var(--gold); border-color: var(--gold);
  color: var(--navy); font-weight: 600;
}

/* ── CARD GRID ── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
  padding: 1.5rem 3rem 4rem;
  max-width: 1400px; margin: 0 auto;
}

/* ── CARD ── */
.ship-card {
  width: 100%; max-width: 340px;
  margin: 0 auto;
  perspective: 1000px;
}

.card-inner {
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.7s cubic-bezier(0.4,0,0.2,1);
  border-radius: 12px;
}

.ship-card.flippable:hover .card-inner { transform: rotateY(180deg); }

.card-front, .card-back-face {
  backface-visibility: hidden; border-radius: 12px; overflow: hidden;
}

.card-back-face {
  position: absolute; inset: 0;
  transform: rotateY(180deg);
  display: flex; flex-direction: column;
  justify-content: center; align-items: center;
  padding: 2rem; text-align: center;
  background: linear-gradient(135deg, var(--deep-blue) 0%, var(--navy) 50%, #1a0d00 100%);
  border: 2px solid rgba(240,180,41,0.4);
}

.card-back-logo { font-family: 'Bebas Neue', sans-serif; font-size: 2rem; color: var(--gold); letter-spacing: 0.1em; margin-bottom: 0.5rem; }
.card-back-sub { font-family: 'Barlow Condensed', sans-serif; font-size: 0.75rem; letter-spacing: 0.2em; color: rgba(245,240,232,0.4); text-transform: uppercase; }
.card-back-anchor { font-size: 3rem; margin: 1rem 0; opacity: 0.3; }

/* ── CARD SHELL ── */
.card-shell {
  border-radius: 12px; padding: 10px; position: relative;
  box-shadow: 0 20px 60px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,255,255,0.1), inset 0 1px 0 rgba(255,255,255,0.2);
}

.card-shell::before {
  content: ''; position: absolute; inset: 0; border-radius: 12px;
  background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, transparent 50%);
  pointer-events: none;
}

/* LOCKED card — grayscale, muted */
.ship-card.locked .card-shell {
  background: linear-gradient(160deg, #1a1a1a, #111111, #0d0d0d) !important;
  border: 2px solid #333 !important;
  box-shadow: 0 10px 30px rgba(0,0,0,0.8);
}

.ship-card.locked .card-body {
  background: linear-gradient(175deg, #d0d0d0 0%, #b8b8b8 100%);
}

.ship-card.locked .card-art { filter: grayscale(100%) contrast(0.7) brightness(0.85); }
.ship-card.locked .card-name { color: #555; }
.ship-card.locked .card-hp { color: #666; }
.ship-card.locked .era-tag { background: rgba(0,0,0,0.15); color: #777; }
.ship-card.locked .stat-item { border-color: #aaa !important; background: rgba(0,0,0,0.08); }
.ship-card.locked .stat-value { color: #555; }
.ship-card.locked .stat-label { color: #888; }
.ship-card.locked .card-flavor { color: #888; border-color: rgba(0,0,0,0.12); }
.ship-card.locked .card-nation { color: #999; }
.ship-card.locked .card-number { color: #aaa; }
.ship-card.locked .type-badge { background: #555 !important; color: #999 !important; }
.ship-card.locked .card-type-bar { color: #888; }

/* UNLOCKED type colors */
.ship-card.unlocked .type-warship .card-shell { background: linear-gradient(160deg, #1a2a4a, #0d1a33, #1e1000); border: 2px solid #4a7aaa; }
.ship-card.unlocked .type-training .card-shell { background: linear-gradient(160deg, #1a3a1a, #0d2a0d, #1a1a00); border: 2px solid #4aaa4a; }
.ship-card.unlocked .type-historic .card-shell { background: linear-gradient(160deg, #3a1a1a, #2a0d0d, #2a1500); border: 2px solid #aa4a4a; }
.ship-card.unlocked .type-navy .card-shell { background: linear-gradient(160deg, #2a2a1a, #1a1a0d, #1a0d1a); border: 2px solid #aaaa4a; }

.ship-card.unlocked .type-warship .stat-item { border-color: #4a7aaa; }
.ship-card.unlocked .type-training .stat-item { border-color: #4aaa4a; }
.ship-card.unlocked .type-historic .stat-item { border-color: #aa4a4a; }
.ship-card.unlocked .type-navy .stat-item { border-color: #aaaa4a; }

.ship-card.unlocked .badge-warship { background: #1a3a6e; color: #a0c4ff; }
.ship-card.unlocked .badge-training { background: #1a3a1a; color: #a0ffa0; }
.ship-card.unlocked .badge-historic { background: #3a1a1a; color: #ffa0a0; }
.ship-card.unlocked .badge-navy { background: #2a2a1a; color: #ffffa0; }

/* Collect glow for unlocked */
.ship-card.unlocked .card-shell {
  box-shadow: 0 20px 60px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,255,255,0.1),
              inset 0 1px 0 rgba(255,255,255,0.2), 0 0 30px rgba(240,180,41,0.15);
}

/* Locked art overlay */
.art-overlay {
  position: absolute; inset: 0; z-index: 5;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  background: rgba(0,0,0,0.25);
  pointer-events: none;
}

.ship-card.unlocked .art-overlay { display: none; }

.art-overlay-lock { font-size: 1.8rem; opacity: 0.5; margin-bottom: 4px; }

.art-overlay-text {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.6rem; font-weight: 700; letter-spacing: 0.2em;
  color: rgba(255,255,255,0.4); text-transform: uppercase;
}

/* Collected stamp */
.collected-stamp {
  position: absolute;
  top: 34px; left: 12px; z-index: 10;
  background: rgba(240,180,41,0.9);
  color: var(--navy); font-family: 'Bebas Neue', sans-serif;
  font-size: 0.65rem; letter-spacing: 0.15em;
  padding: 1px 6px; border-radius: 2px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.3);
  pointer-events: none;
}

.ship-card.locked .collected-stamp { display: none; }

.card-body {
  background: linear-gradient(175deg, #f5f0e8 0%, #ede0c4 100%);
  border-radius: 6px; overflow: hidden; color: var(--ink);
}

.card-topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 8px 12px 6px;
}

.card-name { font-family: 'Bebas Neue', sans-serif; font-size: 1.3rem; letter-spacing: 0.04em; line-height: 1; color: var(--ink); }

.card-topbar-right { display: flex; align-items: center; gap: 5px; flex-shrink: 0; }

.war-icon { font-size: 0.75rem; letter-spacing: -2px; line-height: 1; }

.era-tag { font-family: 'Barlow Condensed', sans-serif; font-size: 0.6rem; font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase; background: rgba(0,0,0,0.12); border-radius: 2px; padding: 2px 5px; color: rgba(26,18,9,0.65); white-space: nowrap; }

.card-hp { font-family: 'Barlow Condensed', sans-serif; font-weight: 700; font-size: 1.1rem; color: var(--ink); white-space: nowrap; }
.card-hp span { font-size: 0.7rem; font-weight: 400; opacity: 0.6; letter-spacing: 0.05em; }

.card-art { position: relative; height: 160px; overflow: hidden; margin: 0 10px; border-radius: 4px; border: 2px solid rgba(0,0,0,0.15); background: var(--deep-blue); }

.ship-svg-container { width: 100%; height: 100%; position: relative; }

.card-type-bar { display: flex; justify-content: space-between; align-items: center; padding: 6px 12px; font-family: 'Barlow Condensed', sans-serif; font-size: 0.75rem; letter-spacing: 0.08em; color: rgba(26,18,9,0.65); }

.type-badge { padding: 2px 8px; border-radius: 2px; font-weight: 700; font-size: 0.65rem; letter-spacing: 0.12em; text-transform: uppercase; background: #555; color: #999; }

.card-divider { height: 1px; background: linear-gradient(90deg, transparent, rgba(0,0,0,0.2), transparent); margin: 0 10px; }

.card-stats { padding: 10px 12px; }

.stat-row { display: flex; gap: 8px; margin-bottom: 6px; flex-wrap: wrap; }

.stat-item { flex: 1; min-width: 80px; background: rgba(0,0,0,0.06); border-radius: 3px; padding: 5px 8px; border-left: 2px solid #aaa; }

.stat-label { font-family: 'Barlow Condensed', sans-serif; font-size: 0.6rem; letter-spacing: 0.1em; text-transform: uppercase; opacity: 0.55; display: block; margin-bottom: 1px; }

.stat-value { font-family: 'Barlow Condensed', sans-serif; font-weight: 700; font-size: 0.88rem; line-height: 1.1; color: var(--ink); }

.card-flavor { padding: 6px 12px 8px; font-size: 0.72rem; font-style: italic; color: rgba(26,18,9,0.6); line-height: 1.4; border-top: 1px solid rgba(0,0,0,0.08); }

.card-bottom { display: flex; justify-content: space-between; align-items: center; padding: 6px 12px 8px; }

.card-nation { font-family: 'Barlow Condensed', sans-serif; font-size: 0.7rem; letter-spacing: 0.08em; color: rgba(26,18,9,0.5); }

.card-flag { font-size: 1rem; }

.card-number { font-family: 'Barlow Condensed', sans-serif; font-size: 0.65rem; color: rgba(26,18,9,0.4); }

/* ── COLLECT BUTTON ── */
.collect-btn {
  display: block; width: calc(100% - 20px);
  margin: 6px 10px 10px;
  padding: 8px;
  background: transparent;
  border: 1px dashed #999;
  border-radius: 4px;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.75rem; font-weight: 600;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: #888; cursor: pointer;
  transition: all 0.2s;
}

.collect-btn:hover { border-color: var(--gold); color: var(--gold); background: rgba(240,180,41,0.05); }

.ship-card.unlocked .collect-btn { display: none; }

/* Power bar on back */
.power-section { width: 100%; margin-top: 12px; }

.power-label { font-family: 'Barlow Condensed', sans-serif; font-size: 0.65rem; letter-spacing: 0.12em; text-transform: uppercase; opacity: 0.5; margin-bottom: 3px; text-align: left; }

.power-bar-outer { width: 100%; height: 8px; background: rgba(255,255,255,0.1); border-radius: 4px; overflow: hidden; margin-bottom: 6px; }

.power-bar-inner { height: 100%; border-radius: 4px; }

/* ── COLLECT MODAL ── */
.modal-overlay {
  position: fixed; inset: 0; z-index: 1000;
  background: rgba(5,12,28,0.92);
  backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  padding: 1rem;
  opacity: 0; pointer-events: none;
  transition: opacity 0.3s;
}

.modal-overlay.open { opacity: 1; pointer-events: all; }

.modal-box {
  background: linear-gradient(160deg, #0d2247, #0a1628);
  border: 1px solid rgba(240,180,41,0.4);
  border-radius: 12px;
  padding: 2.5rem;
  max-width: 480px; width: 100%;
  text-align: center;
  transform: scale(0.9);
  transition: transform 0.3s;
  position: relative;
}

.modal-overlay.open .modal-box { transform: scale(1); }

.modal-ship-name { font-family: 'Bebas Neue', sans-serif; font-size: 2rem; color: var(--gold); letter-spacing: 0.08em; margin-bottom: 0.25rem; }

.modal-subtitle { font-family: 'Barlow Condensed', sans-serif; font-size: 0.8rem; letter-spacing: 0.2em; color: rgba(245,240,232,0.4); text-transform: uppercase; margin-bottom: 1.5rem; }

.modal-hint { font-size: 0.85rem; color: rgba(245,240,232,0.6); line-height: 1.6; margin-bottom: 1.5rem; }

.modal-hint strong { color: var(--gold); }

/* ── TRIVIA OPTIONS ── */
.trivia-options {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 1rem;
  text-align: left;
}

.trivia-btn {
  width: 100%; padding: 0.85rem 1rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 8px;
  color: rgba(245,240,232,0.85);
  font-family: 'Barlow', sans-serif;
  font-size: 0.88rem; line-height: 1.5;
  text-align: left; cursor: pointer;
  transition: border-color 0.2s, background 0.2s, color 0.2s;
}

.trivia-btn:hover:not(:disabled) {
  border-color: var(--gold);
  background: rgba(240,180,41,0.08);
  color: var(--white);
}

.trivia-btn.correct {
  border-color: #4aaa4a;
  background: rgba(74,170,74,0.15);
  color: #a0ffa0;
}

.trivia-btn.wrong {
  border-color: #c0392b;
  background: rgba(192,57,43,0.12);
  color: #ff9999;
  animation: shake 0.4s;
}

.trivia-btn:disabled { cursor: default; }

@keyframes shake {
  0%,100% { transform: translateX(0); }
  20% { transform: translateX(-8px); }
  40% { transform: translateX(8px); }
  60% { transform: translateX(-6px); }
  80% { transform: translateX(6px); }
}

.modal-error { color: #e74c3c; font-size: 0.8rem; margin-top: 0.5rem; min-height: 1.2em; }

.modal-close {
  position: absolute; top: 1rem; right: 1rem;
  background: none; border: none; color: rgba(245,240,232,0.4);
  font-size: 1.2rem; cursor: pointer; padding: 0.25rem 0.5rem;
  transition: color 0.2s;
}

.modal-close:hover { color: var(--white); }


.card-learn-more {
  display: block;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  text-decoration: none;
  opacity: 0.65;
  margin-top: 1rem; margin-bottom: 0.25rem;
  transition: opacity 0.2s;
}
.card-learn-more:hover { opacity: 1; text-decoration: underline; }

/* ── UNLOCK ANIMATION ── */
.unlock-flash {
  position: fixed; inset: 0; z-index: 2000;
  pointer-events: none;
  background: radial-gradient(ellipse at center, rgba(240,180,41,0.5) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.1s;
}

.unlock-flash.pop { opacity: 1; }

/* ── MY DECK ── */
.deck-header {
  text-align: center; padding: 2rem 2rem 1rem;
}

.deck-progress {
  display: inline-flex; align-items: center; gap: 1rem;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(240,180,41,0.2);
  border-radius: 8px; padding: 1rem 2rem;
  margin-bottom: 1.5rem;
}

.deck-progress-num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 3rem; color: var(--gold); line-height: 1;
}

.deck-progress-label {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.8rem; letter-spacing: 0.15em;
  color: rgba(245,240,232,0.5); text-transform: uppercase;
  text-align: left;
}

.deck-progress-bar-outer {
  width: 200px; height: 6px;
  background: rgba(255,255,255,0.1);
  border-radius: 3px; overflow: hidden; margin-top: 4px;
}

.deck-progress-bar-inner {
  height: 100%; border-radius: 3px;
  background: linear-gradient(90deg, var(--gold), #ff8c00);
  transition: width 0.8s ease;
}

.deck-empty {
  text-align: center; padding: 4rem 2rem;
  color: rgba(245,240,232,0.3);
}

.deck-empty-icon { font-size: 4rem; margin-bottom: 1rem; opacity: 0.3; }

.deck-empty-title { font-family: 'Bebas Neue', sans-serif; font-size: 2rem; letter-spacing: 0.1em; margin-bottom: 0.5rem; color: rgba(245,240,232,0.4); }

.deck-empty-text { font-size: 0.9rem; line-height: 1.6; max-width: 400px; margin: 0 auto; }

.deck-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
  padding: 1rem 3rem 4rem;
  max-width: 1400px; margin: 0 auto;
}

.deck-card {
  background: linear-gradient(160deg, rgba(26,58,110,0.3), rgba(10,22,40,0.5));
  border: 1px solid rgba(240,180,41,0.25);
  border-radius: 8px; overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}

.deck-card:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(0,0,0,0.5); }

.deck-card-art { height: 120px; overflow: hidden; position: relative; }

.deck-card-art svg { width: 100%; height: 100%; }

.deck-card-info { padding: 0.75rem 1rem; }

.deck-card-name { font-family: 'Bebas Neue', sans-serif; font-size: 1.1rem; letter-spacing: 0.05em; color: var(--white); }

.deck-card-meta { font-family: 'Barlow Condensed', sans-serif; font-size: 0.75rem; color: rgba(245,240,232,0.5); margin-top: 2px; }

.deck-card-badge { display: inline-block; padding: 1px 6px; border-radius: 2px; font-family: 'Barlow Condensed', sans-serif; font-size: 0.6rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; margin-top: 4px; }

/* ── WAVE BG ── */
.wave-bg { position: fixed; bottom: 0; left: 0; right: 0; height: 200px; pointer-events: none; opacity: 0.06; z-index: 0; }

/* ── INTRO ── */
.intro { text-align: center; max-width: 600px; margin: 0 auto 1rem; padding: 0 2rem; font-size: 0.95rem; line-height: 1.7; color: rgba(245,240,232,0.6); }
.intro strong { color: var(--gold); font-weight: 600; }

.hover-hint { text-align: center; font-family: 'Barlow Condensed', sans-serif; font-size: 0.8rem; letter-spacing: 0.15em; text-transform: uppercase; color: rgba(245,240,232,0.3); margin-bottom: 0.5rem; }

@media (max-width: 600px) {
  .card-grid, .deck-grid { padding: 1rem 1rem 3rem; gap: 1.5rem; }
  .deck-progress { flex-wrap: wrap; text-align: center; justify-content: center; }
  .deck-progress-bar-outer { width: 100%; }
}