/* =========================================================
   TRADE BINDER — One Piece TCG
   Palette: sun-bright open sea — sky blue, Jolly Roger red, straw-hat gold
   ========================================================= */

:root,
[data-theme='light'] {
  --color-bg-top: #5cc2ec;
  --color-bg-bottom: #d3f0fb;
  --color-bg: #bfe6f7;
  --color-surface: #ffffff;
  --color-surface-2: #f3faff;
  --color-panel: rgba(255, 255, 255, 0.6);
  --color-panel-border: rgba(10, 35, 66, 0.16);
  --color-slot-bg-1: #ffffff;
  --color-slot-bg-2: #eef8fd;
  --color-slot-border: rgba(10, 35, 66, 0.14);

  --color-text: #10233f;
  --color-text-strong: #071729;
  --color-text-muted: #3c5876;
  --color-text-faint: #6a86a2;

  --color-primary: #e6362a;
  --color-primary-hover: #c92920;
  --color-primary-text-on: #fff8ea;

  --color-gold: #ffb703;
  --color-gold-text-on: #1c1305;

  --scrim: rgba(8, 20, 40, 0.6);
  --shadow-card: 0 10px 26px -8px rgba(8, 30, 56, 0.28), 0 2px 6px rgba(8, 30, 56, 0.14);
  --shadow-elevated: 0 20px 46px -12px rgba(8, 30, 56, 0.4);
}

[data-theme='dark'] {
  --color-bg-top: #030816;
  --color-bg-bottom: #102040;
  --color-bg: #0a1428;
  --color-surface: #101c36;
  --color-surface-2: #16233f;
  --color-panel: rgba(255, 255, 255, 0.06);
  --color-panel-border: rgba(255, 199, 64, 0.22);
  --color-slot-bg-1: #16233f;
  --color-slot-bg-2: #0d1729;
  --color-slot-border: rgba(255, 199, 64, 0.16);

  --color-text: #e9f1fb;
  --color-text-strong: #ffffff;
  --color-text-muted: #a7bcd8;
  --color-text-faint: #6f87a8;

  --color-primary: #ff5a4c;
  --color-primary-hover: #ff7a6d;
  --color-primary-text-on: #1a0402;

  --color-gold: #ffca3a;
  --color-gold-text-on: #1c1305;

  --scrim: rgba(0, 0, 0, 0.78);
  --shadow-card: 0 10px 30px -8px rgba(0, 0, 0, 0.6), 0 2px 6px rgba(0, 0, 0, 0.4);
  --shadow-elevated: 0 24px 60px -12px rgba(0, 0, 0, 0.7);
}

/* ---- Type scale ---- */
:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.2vw, 0.8125rem);
  --text-sm: clamp(0.8125rem, 0.78rem + 0.25vw, 0.9375rem);
  --text-base: clamp(0.9375rem, 0.9rem + 0.3vw, 1.0625rem);
  --text-lg: clamp(1.125rem, 1rem + 0.6vw, 1.375rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.1vw, 2.125rem);
  --text-2xl: clamp(2.1rem, 1.4rem + 2.4vw, 3.5rem);
  --text-3xl: clamp(2.6rem, 1.2rem + 3.6vw, 5rem);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  --font-display: 'Clash Display', 'General Sans', sans-serif;
  --font-body: 'General Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
}

/* ---- Reset ---- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: linear-gradient(180deg, var(--color-bg-top) 0%, var(--color-bg-bottom) 55%, var(--color-bg-bottom) 100%) fixed;
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  transition: background 0.25s ease, color 0.25s ease;
}
:root, [data-theme='light'] { color-scheme: light; }
[data-theme='dark'] { color-scheme: dark; }
img { max-width: 100%; display: block; }
a { color: inherit; }
button { font-family: inherit; cursor: pointer; }
select, input { font-family: inherit; }

/* subtle grain overlay */
.grain-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  opacity: 0.025;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* =========================================================
   HEADER
   ========================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--color-bg-top) 55%, transparent);
  border-bottom: 1px solid var(--color-panel-border);
  backdrop-filter: blur(10px);
}
.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--space-4) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}
.brand { display: flex; align-items: center; gap: var(--space-3); }
.brand-mark { flex-shrink: 0; border-radius: 50%; }
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  color: var(--color-text-strong);
  letter-spacing: 0.01em;
}
.brand-sub {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-weight: 600;
}
.theme-toggle {
  background: var(--color-panel);
  border: 1px solid var(--color-panel-border);
  color: var(--color-primary);
  border-radius: 999px;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  transition: background 0.2s ease, transform 0.2s ease;
  flex-shrink: 0;
}
.theme-toggle:hover { background: color-mix(in srgb, var(--color-primary) 20%, transparent); transform: scale(1.05); }
.icon-moon { display: none; }
[data-theme='dark'] .icon-sun { display: none; }
[data-theme='dark'] .icon-moon { display: block; }

/* =========================================================
   HERO
   ========================================================= */
.hero {
  position: relative;
  padding: var(--space-20) var(--space-6) var(--space-16);
  background:
    radial-gradient(ellipse 60% 50% at 50% 0%, color-mix(in srgb, var(--color-gold) 30%, transparent), transparent 65%),
    radial-gradient(ellipse 40% 30% at 85% 15%, color-mix(in srgb, #ffffff 55%, transparent), transparent 70%),
    radial-gradient(ellipse 35% 25% at 12% 10%, color-mix(in srgb, #ffffff 45%, transparent), transparent 70%);
  text-align: center;
  overflow: hidden;
  border-bottom: 1px solid var(--color-panel-border);
}
.hero-inner { max-width: 780px; margin: 0 auto; position: relative; }
.hero-kicker {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-primary);
  margin: 0 0 var(--space-4);
  text-transform: uppercase;
  font-weight: 700;
}
.hero-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-3xl);
  color: var(--color-text-strong);
  margin: 0 0 var(--space-5);
  letter-spacing: -0.01em;
  line-height: 1.02;
  text-shadow: 0 2px 0 color-mix(in srgb, var(--color-gold) 45%, transparent);
}
.hero-desc {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 560px;
  margin: 0 auto var(--space-10);
  line-height: 1.5;
  font-weight: 500;
}
.stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
  max-width: 720px;
  margin: 0 auto;
}
.stat-card {
  background: var(--color-panel);
  border: 1px solid var(--color-panel-border);
  border-radius: var(--radius-md);
  padding: var(--space-5) var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  box-shadow: var(--shadow-card);
}
.stat-value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-xl);
  color: var(--color-primary);
}
.stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
}

@media (max-width: 720px) {
  .stat-row { grid-template-columns: repeat(2, 1fr); }
}

/* =========================================================
   CONTROLS
   ========================================================= */
.controls {
  background: transparent;
  padding: var(--space-8) var(--space-6) var(--space-6);
  border-bottom: 1px solid var(--color-panel-border);
}
.controls-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  align-items: stretch;
}
.search-wrap {
  flex: 1 1 320px;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-panel);
  border: 1px solid var(--color-panel-border);
  border-radius: var(--radius-sm);
  padding: 0 var(--space-4);
  color: var(--color-text-muted);
  transition: border-color 0.2s ease;
}
.search-wrap:focus-within { border-color: var(--color-primary); }
.search-wrap input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--color-text-strong);
  padding: var(--space-3) 0;
  font-size: var(--text-sm);
}
.search-wrap input::placeholder { color: var(--color-text-muted); opacity: 0.8; }
.filter-group { display: flex; gap: var(--space-3); flex-wrap: wrap; }

/* ---- Custom select (replaces native <select> to avoid iframe/OS popup click issues) ---- */
.custom-select {
  position: relative;
  min-width: 168px;
}
.custom-select-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  background: var(--color-panel);
  border: 1px solid var(--color-panel-border);
  color: var(--color-text-strong);
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  font-family: inherit;
  outline: none;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.custom-select-trigger:hover,
.custom-select-trigger:focus-visible,
.custom-select.is-open .custom-select-trigger {
  border-color: var(--color-primary);
}
.custom-select-value {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.custom-select-chevron {
  flex-shrink: 0;
  color: var(--color-text-muted);
  transition: transform 0.2s ease;
}
.custom-select.is-open .custom-select-chevron { transform: rotate(180deg); }
.custom-select-list {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  min-width: max-content;
  max-height: 280px;
  overflow-y: auto;
  margin: 0;
  padding: var(--space-2);
  list-style: none;
  background: var(--color-surface);
  border: 1px solid var(--color-panel-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-elevated);
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity 0.15s ease, transform 0.15s ease, visibility 0.15s;
}
.custom-select.is-open .custom-select-list {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.custom-select-option {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-strong);
  border-radius: var(--radius-sm);
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.12s ease;
}
.custom-select-option:hover,
.custom-select-option:focus-visible {
  background: color-mix(in srgb, var(--color-primary) 16%, transparent);
  outline: none;
}
.custom-select-option.is-selected {
  color: var(--color-primary);
  font-weight: 700;
}
.result-count {
  max-width: 1280px;
  margin: var(--space-4) auto 0;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
}

/* =========================================================
   BINDER GRID
   ========================================================= */
.binder-section {
  background: transparent;
  padding: var(--space-10) var(--space-6) var(--space-24);
}
.binder-page {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--space-5);
}
.empty-state {
  text-align: center;
  color: var(--color-text-muted);
  padding: var(--space-20) 0;
  font-size: var(--text-base);
  font-weight: 600;
}

/* ---- Card sleeve ---- */
.slot {
  position: relative;
  border-radius: var(--radius-md);
  background: linear-gradient(160deg, var(--color-slot-bg-1), var(--color-slot-bg-2));
  border: 2px solid var(--color-slot-border);
  padding: var(--space-2);
  cursor: pointer;
  transition: transform 0.25s cubic-bezier(0.2,0.8,0.2,1), box-shadow 0.25s ease, border-color 0.25s ease;
  box-shadow: var(--shadow-card);
  animation: slot-in 0.5s cubic-bezier(0.2,0.8,0.2,1) backwards;
}
.slot:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: var(--shadow-elevated);
  border-color: var(--color-primary);
  z-index: 2;
}
.slot:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

@keyframes slot-in {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

.slot-art {
  position: relative;
  border-radius: var(--radius-sm);
  overflow: hidden;
  aspect-ratio: 400/558;
  background: var(--color-bg);
}
.slot-art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.slot-art .foil-sheen {
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 30%, rgba(255,255,255,0.32) 45%, rgba(255,255,255,0.06) 55%, transparent 65%);
  transform: translateX(-120%);
  transition: transform 0.6s ease;
  pointer-events: none;
}
.slot:hover .foil-sheen { transform: translateX(120%); }

.slot-qty-badge {
  position: absolute;
  top: var(--space-2);
  right: var(--space-2);
  background: var(--color-primary);
  color: var(--color-primary-text-on);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.35);
  line-height: 1.4;
}
.slot-rarity-badge {
  position: absolute;
  bottom: var(--space-2);
  left: var(--space-2);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 999px;
  background: var(--color-gold);
  color: var(--color-gold-text-on);
  border: 1px solid rgba(0,0,0,0.15);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.slot-info { padding: var(--space-3) var(--space-2) var(--space-1); }
.slot-name {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-text-strong);
  line-height: 1.25;
  margin: 0 0 var(--space-1);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.slot-set {
  font-size: 11px;
  color: var(--color-text-faint);
  margin: 0 0 var(--space-2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: 600;
}
.slot-footer {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}
.slot-price {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--text-base);
  color: var(--color-primary);
}
.slot-number {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--color-text-muted);
}

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer {
  background: transparent;
  border-top: 1px solid var(--color-panel-border);
  padding: var(--space-8) var(--space-6);
  text-align: center;
}
.site-footer p {
  max-width: 640px;
  margin: 0 auto;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.6;
  font-weight: 500;
}
.site-footer a { color: var(--color-primary); text-decoration: underline; font-weight: 700; }

/* =========================================================
   MODAL
   ========================================================= */
.card-modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
}
.card-modal.open { display: flex; }
.card-modal-backdrop {
  position: absolute;
  inset: 0;
  background: var(--scrim);
  backdrop-filter: blur(4px);
  animation: fade-in 0.2s ease;
}
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }

.card-modal-panel {
  position: relative;
  background: linear-gradient(165deg, var(--color-slot-bg-1), var(--color-surface-2));
  border: 2px solid var(--color-slot-border);
  border-radius: var(--radius-lg);
  max-width: 640px;
  width: 100%;
  max-height: 88vh;
  overflow-y: auto;
  box-shadow: var(--shadow-elevated);
  animation: modal-in 0.28s cubic-bezier(0.2,0.8,0.2,1);
}
@keyframes modal-in {
  from { opacity: 0; transform: translateY(16px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.modal-close {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  z-index: 5;
  background: var(--color-panel);
  border: 1px solid var(--color-panel-border);
  color: var(--color-text-strong);
  width: 34px;
  height: 34px;
  border-radius: 999px;
  font-size: 20px;
  line-height: 1;
  display: grid;
  place-items: center;
  transition: background 0.2s ease;
}
.modal-close:hover { background: color-mix(in srgb, var(--color-primary) 25%, transparent); }

.modal-content { display: grid; grid-template-columns: 220px 1fr; gap: var(--space-6); padding: var(--space-8); }
.modal-art { border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-card); aspect-ratio: 400/558; border: 2px solid var(--color-slot-border); }
.modal-art img { width: 100%; height: 100%; object-fit: cover; }
.modal-details { display: flex; flex-direction: column; gap: var(--space-3); }
.modal-title { font-family: var(--font-display); font-size: var(--text-lg); font-weight: 700; color: var(--color-text-strong); margin: 0; }
.modal-set { font-size: var(--text-sm); color: var(--color-text-muted); margin: 0; font-weight: 600; }
.modal-badges { display: flex; gap: var(--space-2); flex-wrap: wrap; }
.modal-badge {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid var(--color-panel-border);
  color: var(--color-text-muted);
}
.modal-price-block {
  margin-top: var(--space-2);
  padding: var(--space-4);
  background: var(--color-panel);
  border: 1px solid var(--color-panel-border);
  border-radius: var(--radius-md);
}
.modal-price-label { font-size: var(--text-xs); color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.04em; margin: 0 0 var(--space-1); font-weight: 700; }
.modal-price-value { font-family: var(--font-mono); font-size: var(--text-xl); font-weight: 700; color: var(--color-primary); margin: 0; }
.modal-qty { font-size: var(--text-sm); color: var(--color-text-muted); margin: 0; font-weight: 600; }
.modal-cta {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  background: var(--color-primary);
  color: var(--color-primary-text-on);
  font-weight: 700;
  font-size: var(--text-sm);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: background 0.2s ease, transform 0.15s ease;
}
.modal-cta:hover { background: var(--color-primary-hover); transform: translateY(-1px); }

@media (max-width: 560px) {
  .modal-content { grid-template-columns: 1fr; }
  .modal-art { max-width: 200px; margin: 0 auto; }
}