/* ============================================================
   MyFurKid — Dog Age Calculator
   myfurkid.online/how-old-is-my-golden/
   ============================================================ */

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

:root {
  --gold:    #c4781e;
  --gold-lt: #f5a23a;
  --gold-dk: #9a5d0a;
  --white:   #ffffff;
  --off:     #fdf8f2;
  --ink:     #2e2118;
  --gray:    #4a4a4a;
  --gray-lt: #f0f0f0;
  --line:    #e8ddd0;
  --red:     #dc3545;
  --green:   #28a745;
  --radius:  12px;
  --shadow:  0 4px 24px rgba(0,0,0,.12);
  --shadow-lg: 0 18px 50px rgba(0,0,0,.18);
}

body.mfk-calc-page {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--off);
  color: var(--gray);
  line-height: 1.6;
}

.mfk-calc-wrap        { max-width: 720px; margin: 0 auto; padding: 0 20px; }
.mfk-calc-wrap-narrow { max-width: 640px; margin: 0 auto; padding: 0 20px; }

/* ── HERO ─────────────────────────────────────────────────── */
.mfk-calc-hero {
  background: linear-gradient(135deg, #1a0a00 0%, #5c2d00 55%, #8b4513 100%);
  color: var(--white);
  padding: 54px 0 70px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.mfk-calc-hero::before {
  content: '';
  position: absolute; inset: 0;
  background: 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='0.03'%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");
  pointer-events: none;
}
.mfk-calc-wrap { position: relative; }

.mfk-badge {
  display: inline-block;
  background: var(--gold-lt);
  color: #fff;
  font-size: 12px; font-weight: 700;
  letter-spacing: .08em; text-transform: uppercase;
  padding: 5px 16px; border-radius: 20px;
  margin-bottom: 20px;
}
.mfk-calc-hero h1 {
  font-size: clamp(27px, 5.2vw, 44px);
  font-weight: 800; line-height: 1.18;
  margin-bottom: 14px; color: #fff;
}
.mfk-calc-hero h1 span { color: var(--gold-lt); font-style: italic; }
.mfk-calc-sub {
  font-size: clamp(15px, 2.4vw, 17.5px);
  color: rgba(255,255,255,.86);
  max-width: 560px; margin: 0 auto 32px;
}

/* ── FORM CARD ────────────────────────────────────────────── */
.mfk-calc-card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 28px 24px;
  text-align: left;
}
.mfk-calc-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.mfk-field { margin-bottom: 16px; }
.mfk-field label {
  display: block; font-size: 13.5px; font-weight: 700;
  color: var(--ink); margin-bottom: 6px;
}
.mfk-field .req { color: var(--gold); }
.mfk-auto-note { font-weight: 400; color: #999; font-size: 12px; }

.mfk-field input[type=text],
.mfk-field input[type=email],
.mfk-field input[type=number],
.mfk-field select {
  width: 100%; padding: 11px 13px;
  border: 1.5px solid var(--line); border-radius: 9px;
  font-size: 15.5px; font-family: inherit; color: var(--ink);
  background: #fff; transition: border-color .16s, box-shadow .16s;
}
.mfk-field input:focus, .mfk-field select:focus {
  outline: none; border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(196,120,30,.14);
}
.mfk-field .hint { font-size: 12.5px; color: #8a8177; margin-top: 6px; }

.mfk-date-row { display: grid; grid-template-columns: 1.4fr .8fr 1fr; gap: 8px; }

.mfk-linkbtn {
  background: none; border: none; padding: 6px 0 0;
  color: var(--gold); font-size: 13px; font-weight: 600;
  cursor: pointer; font-family: inherit;
}
.mfk-linkbtn:hover { color: var(--gold-dk); text-decoration: underline; }

/* ── BUTTON ───────────────────────────────────────────────── */
.mfk-btn {
  position: relative; width: 100%;
  background: linear-gradient(135deg, var(--gold), var(--gold-lt));
  color: #fff; border: none; border-radius: 9px;
  padding: 14px 20px; font-size: 16px; font-weight: 700;
  font-family: inherit; cursor: pointer;
  transition: transform .12s, box-shadow .12s, opacity .12s;
  box-shadow: 0 4px 14px rgba(196,120,30,.32);
}
.mfk-btn:hover:not(:disabled) { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(196,120,30,.42); }
.mfk-btn:disabled { opacity: .72; cursor: not-allowed; }
.mfk-btn.loading .btn-label { visibility: hidden; }
.mfk-btn .mfk-spinner { display: none; }
.mfk-btn.loading .mfk-spinner {
  display: block; position: absolute; top: 50%; left: 50%;
  width: 19px; height: 19px; margin: -9.5px 0 0 -9.5px;
  border: 2.5px solid rgba(255,255,255,.35); border-top-color: #fff;
  border-radius: 50%; animation: mfk-spin .7s linear infinite;
}
@keyframes mfk-spin { to { transform: rotate(360deg); } }

.mfk-btn-ghost {
  background: transparent; color: var(--gold);
  border: 1.5px solid var(--gold); box-shadow: none;
  margin-top: 16px; display: inline-block; width: auto;
  padding: 11px 22px; text-decoration: none;
}
.mfk-btn-ghost:hover { background: var(--gold); color: #fff; }

/* ── MESSAGES ─────────────────────────────────────────────── */
#mfk-calc-msg, #mfk-capture-msg {
  display: none; margin-top: 12px; padding: 10px 13px;
  border-radius: 8px; font-size: 14px; text-align: left;
}
#mfk-calc-msg.error, #mfk-capture-msg.error { background: #fdecee; color: var(--red); }
#mfk-calc-msg.success, #mfk-capture-msg.success { background: #eaf7ee; color: var(--green); }

/* ── RESULT ───────────────────────────────────────────────── */
.mfk-calc-result {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  margin-top: 22px; padding: 32px 24px;
  text-align: center; color: var(--gray);
  animation: mfk-rise .45s ease-out;
}
@keyframes mfk-rise {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: none; }
}

.mfk-calc-eyebrow {
  font-size: 15px; color: #8a8177;
  text-transform: uppercase; letter-spacing: .1em; font-weight: 700;
}
.mfk-calc-bignum { margin: 4px 0 2px; }
.mfk-calc-num {
  display: block; font-size: clamp(64px, 15vw, 96px);
  font-weight: 800; line-height: 1; color: var(--gold);
  font-variant-numeric: tabular-nums;
}
.mfk-calc-unit { font-size: 16px; font-weight: 600; color: var(--ink); }
.mfk-calc-actual { font-size: 14.5px; color: #8a8177; margin-top: 8px; }

.mfk-calc-stage {
  margin: 24px 0; padding: 16px 18px;
  background: var(--off); border-radius: 10px;
  border-left: 4px solid var(--gold-lt);
  text-align: left;
}
.mfk-stage-badge {
  display: inline-block; background: var(--gold); color: #fff;
  font-size: 11.5px; font-weight: 800; letter-spacing: .07em;
  text-transform: uppercase; padding: 4px 11px;
  border-radius: 20px; margin-bottom: 7px;
}
.mfk-calc-stage p { font-size: 14.5px; color: var(--gray); }
.mfk-stage-senior { border-left-color: #8b4513; }
.mfk-stage-senior .mfk-stage-badge { background: #8b4513; }

/* ── TIMELINE ─────────────────────────────────────────────── */
.mfk-calc-timeline { margin: 26px 0; text-align: left; }
.mfk-tl-head {
  display: flex; justify-content: space-between;
  font-size: 12px; color: #8a8177; font-weight: 600;
  margin-bottom: 7px;
}
.mfk-tl-bar {
  position: relative; height: 10px;
  background: var(--gray-lt); border-radius: 6px;
  margin-bottom: 34px;
}
.mfk-tl-fill {
  height: 100%; border-radius: 6px;
  background: linear-gradient(90deg, var(--gold-lt), var(--gold));
  transition: width .8s cubic-bezier(.22,.9,.3,1);
}
.mfk-tl-marker { position: absolute; top: 50%; transform: translate(-50%, -50%); }
.mfk-tl-dot {
  display: block; width: 18px; height: 18px;
  background: #fff; border: 3.5px solid var(--gold);
  border-radius: 50%; box-shadow: 0 2px 7px rgba(0,0,0,.2);
}
.mfk-tl-label {
  position: absolute; top: 24px; left: 50%;
  transform: translateX(-50%);
  font-size: 12px; font-weight: 700; color: var(--ink);
  white-space: nowrap;
}
.mfk-tl-note { font-size: 13px; color: #8a8177; line-height: 1.55; }

/* ── STATS ────────────────────────────────────────────────── */
.mfk-calc-stats {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 10px; margin-top: 24px;
}
.mfk-calc-stat {
  background: var(--off); border-radius: 10px; padding: 14px 8px;
}
.mfk-calc-stat strong {
  display: block; font-size: 24px; font-weight: 800;
  color: var(--ink); line-height: 1.15;
  font-variant-numeric: tabular-nums;
}
.mfk-calc-stat span { font-size: 11.5px; color: #8a8177; }
.mfk-calc-stat-hl { background: #fff4e6; }
.mfk-calc-stat-hl strong { color: var(--gold); }

/* ── CAPTURE ──────────────────────────────────────────────── */
.mfk-capture-card {
  background: linear-gradient(135deg, #2e1400, #5c2d00);
  border-radius: var(--radius); box-shadow: var(--shadow-lg);
  margin-top: 18px; padding: 30px 24px;
  text-align: left; color: #fff;
  animation: mfk-rise .45s ease-out .1s backwards;
}
.mfk-capture-card h2 {
  font-size: clamp(20px, 3.6vw, 25px); font-weight: 800;
  color: #fff; margin-bottom: 8px; line-height: 1.25;
}
.mfk-capture-sub { font-size: 15px; color: rgba(255,255,255,.85); margin-bottom: 18px; }
.mfk-capture-sub strong { color: var(--gold-lt); }

.mfk-capture-perks {
  display: grid; gap: 8px; margin-bottom: 20px;
  font-size: 14px; color: rgba(255,255,255,.9);
}

.mfk-capture-row { display: grid; grid-template-columns: 1fr auto; gap: 10px; }
.mfk-capture-row input {
  padding: 13px 14px; border: none; border-radius: 9px;
  font-size: 15.5px; font-family: inherit; color: var(--ink);
}
.mfk-capture-row input:focus {
  outline: none; box-shadow: 0 0 0 3px rgba(245,162,58,.45);
}
.mfk-capture-row .mfk-btn { width: auto; padding: 13px 24px; white-space: nowrap; }

.mfk-privacy { font-size: 12px; color: rgba(255,255,255,.6); margin-top: 12px; }

.mfk-capture-done { text-align: center; }
.mfk-success-icon { font-size: 46px; margin-bottom: 8px; }
.mfk-capture-done h3 { font-size: 22px; color: #fff; margin-bottom: 8px; }
.mfk-capture-done p { color: rgba(255,255,255,.85); font-size: 15px; }

/* ── EXPLAINER ────────────────────────────────────────────── */
.mfk-calc-explain { padding: 56px 0 44px; background: var(--white); }
.mfk-calc-explain h2 {
  font-size: clamp(21px, 3.6vw, 27px); font-weight: 800;
  color: var(--ink); margin: 30px 0 12px;
}
.mfk-calc-explain h2:first-child { margin-top: 0; }
.mfk-calc-explain p { font-size: 15.5px; margin-bottom: 14px; }

.mfk-calc-list { margin: 12px 0 18px; padding-left: 20px; }
.mfk-calc-list li { font-size: 15.5px; margin-bottom: 11px; }
.mfk-calc-list strong { color: var(--ink); }

.mfk-calc-disclaimer {
  margin-top: 28px; padding: 14px 16px;
  background: var(--off); border-radius: 9px;
  font-size: 13px !important; color: #8a8177;
}

/* ── FOOTER ───────────────────────────────────────────────── */
.mfk-calc-footer {
  background: #1a0a00; color: #b9ab9c;
  text-align: center; padding: 30px 20px; font-size: 14px;
}
.mfk-foot-links { margin-top: 8px; font-size: 13px; }
.mfk-calc-footer a { color: var(--gold-lt); text-decoration: none; }
.mfk-calc-footer a:hover { text-decoration: underline; }

/* ── RESPONSIVE ───────────────────────────────────────────── */
@media (max-width: 560px) {
  .mfk-calc-row     { grid-template-columns: 1fr; gap: 0; }
  .mfk-date-row     { grid-template-columns: 1fr; gap: 8px; }
  .mfk-capture-row  { grid-template-columns: 1fr; }
  .mfk-capture-row .mfk-btn { width: 100%; }
  .mfk-calc-stats   { grid-template-columns: 1fr; }
  .mfk-calc-stat    { display: flex; align-items: baseline; gap: 10px; justify-content: center; }
  .mfk-calc-stat strong { font-size: 21px; }
}

/* El checkbox de castrado va en linea con su texto, no encima */
.mfk-field label > input[type=checkbox] { width: auto; margin-right: 8px; vertical-align: middle; }