/* =============================================================
   1. Tokens
   ============================================================= */
:root {
  --bg: #0f1113;
  --panel: #16191c;
  --panel-2: #1d2125;
  --border: #2a2f34;
  --text: #eceff1;
  --muted: #9aa3ab;
  --accent: #7fd1ae;
  --danger: #e5686b;
  --warn: #e0b355;
  --ok: #7fd1ae;
  --whatsapp: #25d366;
  --cream: #f2f1ec;
  --radius: 12px;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f6f7f5;
    --panel: #ffffff;
    --panel-2: #f0f1ee;
    --border: #dfe3e0;
    --text: #16191c;
    --muted: #5c6570;
  }
}

/* =============================================================
   2. Reset & base
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html { -webkit-text-size-adjust: 100%; tab-size: 2; }
body {
  font-family: "Inter", "Manrope", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  background: var(--bg);
  color: var(--text);
  overflow-x: clip;
}
img, svg, video, canvas { display: block; max-width: 100%; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; }
h1, h2, h3 { text-wrap: balance; line-height: 1.15; letter-spacing: -0.01em; }
code { font-family: "JetBrains Mono", monospace; font-size: 0.9em; }
p { text-wrap: pretty; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.skip-link {
  position: fixed; top: -100px; left: 1rem;
  padding: .6rem 1rem; background: var(--cream); color: #111;
  z-index: 9999; border-radius: 8px; font-weight: 600;
}
.skip-link:focus { top: 1rem; }

/* =============================================================
   3. Utilities
   ============================================================= */
.container { max-width: 980px; margin: 0 auto; padding: 1.5rem 1.25rem 4rem; }
.container-narrow { max-width: 460px; margin: 0 auto; padding: 1.5rem 1.25rem 4rem; }

/* =============================================================
   4. Header / footer
   ============================================================= */
.site-header {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 1rem 1.25rem; border-bottom: 1px solid var(--border);
}
.site-header .tag { font-size: .8rem; color: var(--muted); }
.site-header nav { display: flex; align-items: center; gap: 1rem; font-size: .9rem; }
.site-header nav a { color: var(--muted); }
.site-header nav a:hover { color: var(--text); }
.site-footer {
  border-top: 1px solid var(--border); padding: 1.5rem 1.25rem; margin-top: 2rem;
  color: var(--muted); font-size: .85rem; text-align: center;
}

/* =============================================================
   5. Components (shared)
   ============================================================= */
.subtitle { color: var(--muted); margin: .5rem 0 1.5rem; max-width: 60ch; }

.tool-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.grid-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem 1.25rem;
  margin-bottom: 1.5rem;
}
.grid-form.single-col { grid-template-columns: 1fr; }
.field { display: flex; flex-direction: column; gap: .4rem; }
.field.two-col { grid-column: 1 / -1; display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.field span, fieldset legend { font-size: .85rem; font-weight: 600; color: var(--muted); }
.field input[type="text"], .field input[type="email"], .field input[type="password"],
.field input[type="tel"], .field select, .field textarea {
  background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
  border-radius: 8px; padding: .6rem .7rem; font-size: .95rem; font-family: inherit;
}
.field textarea { resize: vertical; min-height: 4.5rem; }
.field input[type="color"] {
  width: 100%; height: 2.4rem; border: 1px solid var(--border); border-radius: 8px; background: var(--panel-2); padding: 2px;
}
fieldset { border: 1px solid var(--border); border-radius: 8px; padding: .7rem .8rem; }
.radio { display: flex; align-items: center; gap: .5rem; font-size: .9rem; padding: .25rem 0; }

@media (max-width: 640px) {
  .grid-form { grid-template-columns: 1fr; }
  .field.two-col { grid-template-columns: 1fr 1fr; }
}

.result-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; align-items: start; }
@media (max-width: 800px) { .result-row { grid-template-columns: 1fr; } }

.preview-col { display: flex; flex-direction: column; gap: 1rem; }
.qr-2d { background: #fff; border-radius: 8px; padding: .75rem; display: flex; justify-content: center; }
.qr-2d canvas { max-width: 100%; height: auto; }

.check-inline {
  display: flex; align-items: center; gap: .5rem;
  font-size: .85rem; color: var(--muted); margin-top: -.4rem;
}
.qr-mode-info { display: flex; flex-wrap: wrap; gap: .5rem; font-size: .8rem; }
.qr-mode-info .pill {
  border: 1px solid var(--border); border-radius: 999px; padding: .2rem .65rem;
  background: var(--panel-2); color: var(--muted);
}
.qr-mode-info .pill.good { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 40%, var(--border)); }
.qr-mode-info .pill.hint { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 40%, var(--border)); cursor: pointer; }

.viewer-wrap {
  position: relative; aspect-ratio: 4/3;
  background: linear-gradient(180deg, #e8e9eb, #d3d5d8);
  border: 1px solid var(--border); border-radius: 8px; overflow: hidden;
}
.viewer { width: 100%; height: 100%; }
.viewer-msg {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  color: #4a4d52; font-size: .85rem; text-align: center; padding: 1rem; pointer-events: none;
}
.viewer-msg[hidden] { display: none; }

.warnings { display: flex; flex-direction: column; gap: .5rem; margin-bottom: 1.25rem; }
.warn-item {
  display: flex; gap: .5rem; align-items: flex-start; font-size: .85rem;
  border-radius: 8px; padding: .55rem .7rem; border: 1px solid var(--border);
}
.warn-item.ok { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 40%, var(--border)); }
.warn-item.warn { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 40%, var(--border)); }
.warn-item.danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 40%, var(--border)); }

.downloads { display: flex; flex-direction: column; gap: .6rem; }
.btn {
  padding: .75rem 1rem; border-radius: 8px; border: 1px solid var(--border);
  background: var(--panel-2); font-weight: 600; font-size: .9rem;
  transition: transform .15s var(--ease-out), background .15s var(--ease-out);
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  text-decoration: none;
}
.btn:hover:not(:disabled) { transform: translateY(-1px); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: #0f1113; border-color: transparent; }
.btn-ghost { background: transparent; }
.btn-block { width: 100%; }
.btn-whatsapp { background: var(--whatsapp); color: #06210f; border-color: transparent; font-size: 1.05rem; padding: 1rem; }

.hint { color: var(--muted); font-size: .8rem; margin-top: .9rem; }
.error-msg {
  color: var(--danger); font-size: .85rem; background: color-mix(in srgb, var(--danger) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--danger) 40%, var(--border)); border-radius: 8px; padding: .6rem .8rem;
}
.error-msg[hidden] { display: none; }

/* =============================================================
   Live dimension sliders
   ============================================================= */
.dims { border: 1px solid var(--border); border-radius: 8px; padding: 1rem; margin-top: .25rem; }
.dims legend { font-size: .8rem; font-weight: 600; color: var(--muted); padding: 0 .3rem; }
.dims-grid { display: flex; flex-direction: column; gap: .75rem; }
.dim-row { display: grid; grid-template-columns: 9rem 1fr 5rem; align-items: center; gap: .6rem; }
.dim-row label { font-size: .85rem; color: var(--text); }
.dim-row input[type="range"] { width: 100%; accent-color: var(--accent); }
.dim-row input[type="number"] {
  background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
  border-radius: 6px; padding: .3rem .4rem; font-size: .85rem; width: 100%;
}
@media (max-width: 560px) { .dim-row { grid-template-columns: 1fr; row-gap: .3rem; } }
.dim-hint { font-size: .78rem; color: var(--muted); margin: -.35rem 0 0; padding-left: .1rem; }

/* =============================================================
   Auth
   ============================================================= */
.auth-tabs { display: flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; margin-bottom: 1.5rem; }
.auth-tabs button {
  flex: 1; padding: .7rem; font-size: .9rem; font-weight: 600; color: var(--muted);
  background: var(--panel-2);
}
.auth-tabs button.active { background: var(--accent); color: #0f1113; }
.auth-form { display: flex; flex-direction: column; gap: 1rem; }
.auth-form[hidden] { display: none; }
.or-sep {
  display: flex; align-items: center; gap: .8rem; color: var(--muted); font-size: .78rem;
  text-transform: uppercase; letter-spacing: .05em; margin: 0 0 1rem;
}
.or-sep::before, .or-sep::after { content: ""; flex: 1; height: 1px; background: var(--border); }

/* =============================================================
   Dashboard / pet list
   ============================================================= */
.dash-head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-bottom: 1.5rem; flex-wrap: wrap; }
.pet-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 1rem; }
.pet-card {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.2rem; display: flex; flex-direction: column; gap: .7rem;
}
.pet-card h3 { font-size: 1.1rem; }
.pet-card .slug { font-size: .78rem; color: var(--muted); }
.pet-card .scan-count {
  font-size: .8rem; color: var(--accent); background: color-mix(in srgb, var(--accent) 14%, transparent);
  border-radius: 999px; padding: .15rem .6rem; display: inline-flex; width: fit-content;
}
.pet-card .actions { display: flex; gap: .5rem; flex-wrap: wrap; margin-top: auto; }
.pet-card .actions .btn { flex: 1; font-size: .8rem; padding: .5rem .6rem; }
.empty-state {
  text-align: center; padding: 3rem 1rem; color: var(--muted); border: 1px dashed var(--border); border-radius: var(--radius);
}

.scan-table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.scan-table th, .scan-table td { text-align: left; padding: .6rem .5rem; border-bottom: 1px solid var(--border); }
.scan-table th { font-size: .72rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); }
.badge { font-size: .74rem; border-radius: 999px; padding: .1rem .55rem; border: 1px solid var(--border); }
.badge.precise { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 40%, var(--border)); }

/* =============================================================
   Public scan page
   ============================================================= */
.scan-page { max-width: 480px; margin: 0 auto; padding: 2rem 1.25rem 3rem; }
.pet-hero { text-align: center; margin-bottom: 1.5rem; }
.pet-hero .avatar {
  width: 96px; height: 96px; border-radius: 50%; margin: 0 auto .9rem;
  background: var(--panel-2); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center; font-size: 2.4rem;
}
.pet-hero h1 { font-size: 1.5rem; }
.pet-notes {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1rem 1.1rem; margin-bottom: 1.25rem; font-size: .92rem; color: var(--text);
  white-space: pre-wrap;
}
.privacy-note {
  font-size: .78rem; color: var(--muted); text-align: center; margin-top: 1rem; line-height: 1.5;
}
.location-offer {
  margin-top: 1rem; text-align: center; font-size: .85rem; color: var(--muted);
}
.location-offer button { color: var(--accent); font-weight: 600; text-decoration: underline; }

/* =============================================================
   Free public generator: ad slot + how-it-works
   ============================================================= */
.ad-slot {
  min-height: 90px; margin: 2rem 0; border: 1px dashed var(--border); border-radius: 8px;
  display: flex; align-items: center; justify-content: center; color: var(--muted); font-size: .8rem;
}
.how-it-works { margin-top: 1rem; }
.how-it-works h2 { font-size: 1.1rem; margin-bottom: .8rem; }
.how-it-works ol { padding-left: 1.2rem; display: flex; flex-direction: column; gap: .5rem; color: var(--muted); font-size: .92rem; }
.how-it-works li::marker { color: var(--accent); font-weight: 700; }