/* Dr. Omar Rivera · Cirugía bariátrica y metabólica
   Concepto: la escala del IMC como hilo visual (cinta métrica segmentada), tinta azul profunda + agua clínica + ámbar de señal */
:root{
  --bg:#f4f7fc; --surface:#ffffff; --sunk:#e8eef8; --line:#d3ddec;
  --ink:#0e1c33; --muted:#4e5f78; --accent:#2c5aa8; --accent-ink:#ffffff; --accent-soft:#e0e9f7;
  --signal:#d98a12; --deep:#0f2447; --deep-fg:#eef3fb;
  --ok:#1f8a4c; --ok-soft:#dcf1e4; --warn:#b26b00; --warn-soft:#fbecd2; --bad:#b43c35; --bad-soft:#f7dedb; --info:#2d6aa3; --info-soft:#dde9f6;
  --b1:#5aa9d6; --b2:#2aa876; --b3:#e4b737; --b4:#e88a2e; --b5:#d4583a; --b6:#9b2d3f;
  --f-display:"Bricolage Grotesque", "Figtree", system-ui, sans-serif;
  --f-body:"Figtree", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-data:"IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --r-s:8px; --r-m:14px; --r-l:22px;
  --shadow:0 1px 2px rgba(15,37,51,.06), 0 8px 28px rgba(15,37,51,.08);
  --wa:#1fa855;
}
@media (prefers-color-scheme: dark){ :root:not([data-theme="light"]){
  --bg:#0a1424; --surface:#101e33; --sunk:#0c182a; --line:#213350;
  --ink:#e7eefa; --muted:#9db0cc; --accent:#86aef0; --accent-ink:#08162c; --accent-soft:#18305a;
  --signal:#f0a93a; --deep:#061022; --deep-fg:#e7eefa;
  --ok:#57c785; --ok-soft:#163626; --warn:#f0a93a; --warn-soft:#3a2a10; --bad:#ec7a72; --bad-soft:#3d1c1a; --info:#7fb2e5; --info-soft:#16283c;
  --shadow:0 1px 2px rgba(0,0,0,.3), 0 10px 30px rgba(0,0,0,.35); color-scheme:dark }}
:root[data-theme="dark"]{
  --bg:#0a1424; --surface:#101e33; --sunk:#0c182a; --line:#213350;
  --ink:#e7eefa; --muted:#9db0cc; --accent:#86aef0; --accent-ink:#08162c; --accent-soft:#18305a;
  --signal:#f0a93a; --deep:#061022; --deep-fg:#e7eefa;
  --ok:#57c785; --ok-soft:#163626; --warn:#f0a93a; --warn-soft:#3a2a10; --bad:#ec7a72; --bad-soft:#3d1c1a; --info:#7fb2e5; --info-soft:#16283c;
  --shadow:0 1px 2px rgba(0,0,0,.3), 0 10px 30px rgba(0,0,0,.35); color-scheme:dark }

*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{margin:0;background:var(--bg);color:var(--ink);font:400 16px/1.6 var(--f-body);-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:var(--f-display);line-height:1.1;margin:0;text-wrap:balance;letter-spacing:-.015em}
p{margin:0}
a{color:inherit}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--signal);outline-offset:2px;border-radius:4px}
.wrap{width:100%;max-width:1180px;margin-inline:auto;padding-inline:20px}
.icon{width:20px;height:20px;flex:none;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.icon.fill{fill:currentColor;stroke:none}
.label{font:600 12.5px/1.2 var(--f-body);letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
.num{font-family:var(--f-data);font-variant-numeric:tabular-nums}

/* botones */
.btn{display:inline-flex;align-items:center;gap:10px;justify-content:center;padding:13px 22px;border-radius:999px;border:1.5px solid transparent;font-weight:600;font-size:15.5px;text-decoration:none;cursor:pointer;transition:transform .15s, background .15s, border-color .15s;white-space:nowrap}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--accent);color:var(--accent-ink)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--accent)}
.btn-wa{background:var(--wa);color:#fff}
.btn-sm{padding:8px 14px;font-size:14px}
.icon-btn{width:40px;height:40px;border-radius:50%;display:inline-grid;place-items:center;border:1.5px solid var(--line);background:transparent;cursor:pointer}
.icon-btn:hover{border-color:var(--accent)}
.theme-btn .moon{display:none}
:root[data-theme="dark"] .theme-btn .sun{display:none}
:root[data-theme="dark"] .theme-btn .moon{display:block}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .theme-btn .sun{display:none}:root:not([data-theme="light"]) .theme-btn .moon{display:block}}

/* marca */
.logo{display:block;height:46px;width:auto}
.logo.dk{display:none}
:root[data-theme="dark"] .logo.lt{display:none}:root[data-theme="dark"] .logo.dk{display:block}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .logo.lt{display:none}:root:not([data-theme="light"]) .logo.dk{display:block}}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand-mark{width:38px;height:38px;border-radius:11px;background:var(--accent);color:var(--accent-ink);display:grid;place-items:center;font:700 15px/1 var(--f-display);letter-spacing:-.02em}
.brand-text{display:flex;flex-direction:column;line-height:1.05}
.brand-text b{font:700 17px var(--f-display);letter-spacing:-.01em}
.brand-text small{font-size:11.5px;color:var(--muted);letter-spacing:.04em}

/* campos */
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.field>span{font-size:13px;font-weight:600;color:var(--muted)}
.field input,.field select,.field textarea{width:100%;padding:11px 13px;border-radius:var(--r-s);border:1.5px solid var(--line);background:var(--surface);transition:border-color .15s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--accent)}
.seg{display:inline-flex;padding:4px;border-radius:999px;background:var(--sunk);border:1px solid var(--line)}
.seg button{border:0;background:transparent;padding:7px 14px;border-radius:999px;font-size:14px;font-weight:600;color:var(--muted);cursor:pointer}
.seg button[aria-pressed="true"]{background:var(--surface);color:var(--ink);box-shadow:var(--shadow)}

/* píldoras de estado */
.pill{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;font-size:12.5px;font-weight:600;white-space:nowrap}
.pill::before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor}
.pill.ok{background:var(--ok-soft);color:var(--ok)}
.pill.warn{background:var(--warn-soft);color:var(--warn)}
.pill.bad{background:var(--bad-soft);color:var(--bad)}
.pill.info{background:var(--info-soft);color:var(--info)}
.pill.mute{background:var(--sunk);color:var(--muted)}

/* escala IMC (elemento firma) */
.bmi-scale{position:relative;padding-top:30px}
.bmi-bar{display:grid;grid-template-columns:var(--cols,13.5fr 6.5fr 5fr 5fr 5fr 10fr);height:14px;border-radius:999px;overflow:hidden}
.bmi-bar i:nth-child(1){background:var(--b1)}.bmi-bar i:nth-child(2){background:var(--b2)}.bmi-bar i:nth-child(3){background:var(--b3)}
.bmi-bar i:nth-child(4){background:var(--b4)}.bmi-bar i:nth-child(5){background:var(--b5)}.bmi-bar i:nth-child(6){background:var(--b6)}
.bmi-ticks{position:relative;height:22px;margin-top:6px;font:500 11.5px var(--f-data);color:var(--muted)}
.bmi-ticks span{position:absolute;transform:translateX(-50%)}
.bmi-marker{position:absolute;top:0;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;transition:left .6s cubic-bezier(.2,.8,.2,1)}
.bmi-marker b{font:700 13px var(--f-data);background:var(--ink);color:var(--bg);padding:2px 8px;border-radius:6px}
.bmi-marker::after{content:"";width:2px;height:22px;background:var(--ink)}

/* foto con respaldo */
.photo{position:relative;background:linear-gradient(160deg,var(--accent-soft),var(--sunk));overflow:hidden}
.photo img{width:100%;height:100%;object-fit:cover}
.photo .ph{position:absolute;inset:0;display:none;place-items:center;font:700 64px var(--f-display);color:var(--accent);opacity:.5}
.photo.noimg img{display:none}.photo.noimg .ph{display:grid}

/* WhatsApp flotante */
.wa-float{position:fixed;right:18px;bottom:calc(18px + env(safe-area-inset-bottom,0px));z-index:40;display:flex;align-items:center;gap:10px;padding:12px 18px 12px 14px;border-radius:999px;background:var(--wa);color:#fff;text-decoration:none;font-weight:600;box-shadow:0 10px 30px rgba(0,0,0,.25)}
.wa-float svg{width:26px;height:26px}
@media (max-width:640px){.wa-float span{display:none}.wa-float{padding:14px}}