/* ===========================================================
   Hoy No Circula — design system compartido
   Sistema visual: los 5 colores oficiales del engomado
   =========================================================== */
:root{
  --ink:#15171C; --paper:#EDEFF2; --surface:#FFFFFF;
  --muted:#6B7480; --hair:#D3D8E0;
  --lun:#F5C518; --mar:#E8588E; --mie:#D6303A; --jue:#2FA36A; --vie:#2C6FE0;
  --free:#A3ABB6;
  /* paleta bandera de México (chrome de marca) */
  --mx-green:#0B7A4B; --mx-green-dark:#06351F; --mx-red:#D7263D;
  --radius:14px; --maxw:920px;
  --gut:max(16px, calc(50vw - 460px)); /* centra contenido al ancho 920 con fondo full-width */
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);
  font-family:"Inter",system-ui,sans-serif;line-height:1.55;-webkit-font-smoothing:antialiased}
.wrap{max-width:var(--maxw);margin:0 auto;padding:clamp(20px,5vw,48px) clamp(16px,4vw,28px)}
a{color:inherit}

/* nav — banda verde oscuro a todo el ancho */
.topnav{background:var(--mx-green-dark);padding:12px var(--gut);
  display:flex;gap:6px;flex-wrap:wrap;align-items:center;font-size:.82rem}
.topnav .brand{font-family:"Bricolage Grotesque",sans-serif;font-weight:800;margin-right:auto;font-size:1rem;color:#fff;text-decoration:none;letter-spacing:-.01em}
.topnav .brand b{color:#fff}
.topnav .brand span{color:#9FE3C0}
.topnav a{text-decoration:none;color:rgba(255,255,255,.78);padding:6px 11px;border-radius:8px}
.topnav a:hover{background:rgba(255,255,255,.14);color:#fff}
.topnav a[aria-current="page"]{background:#fff;color:var(--mx-green-dark)}

/* hero — banda con imagen Pexels + degradado verde */
.hero{padding:clamp(30px,7vw,64px) var(--gut);
  background:linear-gradient(180deg, rgba(6,53,31,.62), rgba(6,53,31,.82)), var(--img,none);
  background-color:var(--mx-green-dark);background-size:cover;background-position:center;
  border-bottom:4px solid var(--mx-red)}
.hero-inner{max-width:var(--maxw)}
.hero .eyebrow{color:#9FE3C0}
.hero .eyebrow::before{background:#9FE3C0}
.hero h1{color:#fff;margin-bottom:.4rem}
.hero .lede{color:rgba(255,255,255,.92);margin:0}

.eyebrow{font-family:"DM Mono",monospace;font-size:.74rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--muted);margin:0 0 14px;display:flex;align-items:center;gap:10px}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--ink);display:inline-block}
h1{font-family:"Bricolage Grotesque",sans-serif;font-weight:800;font-size:clamp(2rem,6.5vw,3.4rem);
  line-height:1.02;letter-spacing:-.02em;margin:0 0 .5rem;max-width:18ch}
.lede{font-size:clamp(1rem,2.5vw,1.18rem);color:#3A414B;margin:0 0 30px;max-width:50ch}

section{margin-top:clamp(34px,7vw,56px)}
.h-eyebrow{font-family:"DM Mono",monospace;font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin:0 0 8px}
h2.title{font-family:"Bricolage Grotesque",sans-serif;font-weight:700;font-size:clamp(1.4rem,4vw,2rem);letter-spacing:-.01em;margin:0 0 18px}
h3{font-family:"Bricolage Grotesque",sans-serif}
p{color:#3A414B}

.card{background:var(--surface);border:1px solid var(--hair);border-radius:var(--radius);padding:18px}
.cards{display:grid;gap:14px}
@media(min-width:640px){.cards.three{grid-template-columns:repeat(3,1fr)}.cards.two{grid-template-columns:1fr 1fr}}
.card h3{font-weight:700;font-size:1.05rem;margin:0 0 6px}
.card p{margin:0;font-size:.92rem}

.tag{display:inline-block;font-family:"DM Mono",monospace;font-size:.7rem;padding:2px 8px;border-radius:999px;margin-bottom:8px;letter-spacing:.04em}
.tag.t0{background:#E6F4EC;color:#1d7a4d}.tag.t1{background:#FFF4D6;color:#8a6a08}.tag.t2{background:#FBE3E5;color:#a51f27}

/* tabla reglas */
.table{background:var(--surface);border:1px solid var(--hair);border-radius:var(--radius);overflow:hidden}
.row{display:grid;grid-template-columns:1.1fr 1fr 1fr;align-items:center;border-top:1px solid var(--hair)}
.row:first-child{border-top:0}
.row.head{background:#F4F6F9;font-family:"DM Mono",monospace;font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.cell{padding:14px 16px;font-size:.96rem}
.day{display:flex;align-items:center;gap:11px;font-weight:600}
.swatch{width:18px;height:18px;border-radius:5px;flex:0 0 auto;box-shadow:inset 0 0 0 1px rgba(0,0,0,.12)}
.row.free .cell{color:var(--muted)}

/* selector tipo placa */
.picker{background:var(--surface);border:1px solid var(--hair);border-radius:var(--radius);
  padding:clamp(18px,4vw,26px);box-shadow:0 18px 40px -28px rgba(21,23,28,.45)}
.picker h2{font-weight:600;font-size:.95rem;margin:0 0 14px;color:var(--muted)}
.plate{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}
@media(min-width:520px){.plate{grid-template-columns:repeat(10,1fr)}}
.digit{font-family:"DM Mono",monospace;font-weight:500;font-size:1.5rem;aspect-ratio:3/4;
  border:2px solid var(--ink);background:#F7F8FA;border-radius:9px;color:var(--ink);cursor:pointer;
  transition:transform .08s,background .15s,color .15s;display:flex;align-items:center;justify-content:center}
.digit:hover{background:#fff}.digit:active{transform:translateY(2px)}
.digit[aria-pressed="true"]{background:var(--ink);color:#fff}
.digit:focus-visible{outline:3px solid var(--vie);outline-offset:2px}
.seg{display:inline-flex;gap:6px;flex-wrap:wrap;margin:10px 0 0}
.seg button{font-family:"Inter",sans-serif;font-size:.9rem;padding:8px 14px;border:2px solid var(--ink);
  background:#F7F8FA;border-radius:9px;cursor:pointer}
.seg button[aria-pressed="true"]{background:var(--ink);color:#fff}
.seg button:focus-visible{outline:3px solid var(--vie);outline-offset:2px}

.result{margin-top:18px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--hair);display:none}
.result.show{display:block;animation:rise .35s cubic-bezier(.2,.7,.2,1)}
@keyframes rise{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.result-top{display:flex;align-items:center;gap:16px;padding:18px 20px;color:#fff}
.chip{width:52px;height:52px;border-radius:10px;flex:0 0 auto;border:3px solid rgba(255,255,255,.65)}
.result-top .r-day{font-family:"Bricolage Grotesque",sans-serif;font-weight:800;font-size:1.5rem;line-height:1.05}
.result-top .r-eng{font-size:.85rem;opacity:.92;font-family:"DM Mono",monospace;letter-spacing:.06em;text-transform:uppercase}
.result-body{background:var(--surface);padding:14px 20px;font-size:.95rem;color:#3A414B}
.result-body strong{color:var(--ink)}

/* calendario mensual */
.calwrap{background:var(--surface);border:1px solid var(--hair);border-radius:var(--radius);padding:clamp(14px,3vw,22px)}
.calhead{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.calhead h3{margin:0;font-size:1.2rem;text-transform:capitalize}
.calhead button{font-family:"DM Mono",monospace;border:2px solid var(--ink);background:#fff;border-radius:8px;
  width:38px;height:38px;cursor:pointer;font-size:1rem}
.calhead button:focus-visible{outline:3px solid var(--vie);outline-offset:2px}
.calgrid{display:grid;grid-template-columns:repeat(7,1fr);gap:5px}
.cal-dow{font-family:"DM Mono",monospace;font-size:.62rem;letter-spacing:.08em;text-transform:uppercase;
  color:var(--muted);text-align:center;padding:4px 0}
.cal-cell{aspect-ratio:1/1.05;border-radius:8px;border:1px solid var(--hair);padding:5px 6px;
  display:flex;flex-direction:column;gap:2px;font-size:.74rem;min-height:48px}
.cal-cell .d{font-family:"DM Mono",monospace;font-weight:500}
.cal-cell .lab{margin-top:auto;font-size:.6rem;line-height:1.15;color:#3A414B}
.cal-cell.empty{border:0}
.cal-cell.today{outline:2px solid var(--ink)}
.cal-bar{height:5px;border-radius:3px;margin-top:auto}

.callout{margin-top:18px;background:#1C1F26;color:#fff;border-radius:var(--radius);padding:18px 20px;display:flex;gap:14px;align-items:flex-start}
.callout .x{font-family:"Bricolage Grotesque",sans-serif;font-weight:800;font-size:1.4rem;color:var(--mie);line-height:1}
.callout p{margin:0;font-size:.95rem;color:#fff}
.callout strong{color:#fff}

.rule-list{list-style:none;margin:14px 0 0;padding:0;display:grid;gap:8px}
.rule-list li{display:flex;gap:10px;align-items:baseline;font-size:.94rem;background:var(--surface);border:1px solid var(--hair);border-radius:10px;padding:10px 14px}
.rule-list b{font-family:"DM Mono",monospace;font-weight:500;color:var(--vie);flex:0 0 auto}

.next{margin-top:clamp(34px,7vw,56px);background:var(--surface);border:1px solid var(--hair);border-radius:var(--radius);
  padding:22px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between}
.next p{margin:0;max-width:42ch}.next b{color:var(--ink)}
.btn{font-family:"Inter",sans-serif;font-weight:600;font-size:.95rem;text-decoration:none;background:var(--mx-green);
  color:#fff;padding:12px 20px;border-radius:10px;white-space:nowrap;transition:transform .08s,opacity .15s}
.btn:hover{opacity:.92}.btn:active{transform:translateY(1px)}
footer{margin-top:48px;width:100vw;margin-left:calc(50% - 50vw);
  background:var(--mx-green-dark);color:rgba(255,255,255,.82);
  padding:30px var(--gut);font-size:.84rem;border-top:4px solid var(--mx-red)}
footer a{color:#9FE3C0;text-decoration:none}
footer a:hover{text-decoration:underline}
.prose p{margin:0 0 14px;max-width:65ch}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}