/* ===========================================================
   JAK Design — Sistema de diseño unificado
   Editorial Khouri & Mela · Servicios Tecnológicos
   =========================================================== */

:root{
  /* Paleta principal */
  --navy-950: #06112c;
  --navy-900: #0b1740;
  --navy-800: #122253;
  --navy-700: #1d3275;
  --gold-600: #b48427;
  --gold-500: #c99b3f;
  --gold-400: #e0b85f;
  --gold-200: #f0d790;
  --paper:    #fbf6ec;
  --paper-2:  #f3ead7;
  --sand:     #e5dbc8;
  --ink:      #0f1320;
  --ink-2:    #2a2f40;
  --muted:    #6b6e7d;
  --line:     #e2d8c2;
  --crimson:  #a72f2a;
  --teal:     #1f6f6c;

  /* Sombras */
  --shadow-sm: 0 2px 6px rgba(11,23,64,.07);
  --shadow-md: 0 12px 30px rgba(11,23,64,.10);
  --shadow-lg: 0 28px 60px rgba(11,23,64,.18);
  --shadow-xl: 0 40px 90px rgba(11,23,64,.25);

  /* Tipografía */
  --serif: 'Fraunces', 'Cormorant Garamond', Georgia, serif;
  --sans:  'Manrope', system-ui, -apple-system, sans-serif;
  --mono:  'JetBrains Mono', ui-monospace, 'SF Mono', monospace;

  /* Layout */
  --max: 1240px;
  --gutter: clamp(20px, 4vw, 56px);
  --radius: 14px;
  --radius-lg: 22px;
}

/* Reset */
*,*::before,*::after{ box-sizing:border-box }
html{ scroll-behavior:smooth }
body{
  margin:0;
  font-family: var(--sans);
  font-size: 16.5px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img{ max-width:100%; display:block }
a{ color: inherit; text-decoration:none }
button{ font: inherit; cursor:pointer; border:none; background:none }

/* ============================================================
   Tipografía
   ============================================================ */
.eyebrow{
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold-500);
  font-weight: 600;
}
h1,h2,h3,h4{ font-family: var(--serif); font-weight: 500; line-height: 1.05; letter-spacing: -0.01em; margin:0 }
h1{ font-size: clamp(2.5rem, 6.4vw, 5.6rem); font-weight: 400; }
h2{ font-size: clamp(2rem, 4.4vw, 3.6rem); font-weight: 400; }
h3{ font-size: clamp(1.4rem, 2.4vw, 1.85rem); font-weight: 500; }
h4{ font-size: 1.1rem; font-weight: 600; font-family: var(--sans); letter-spacing:.02em }

.lead{ font-size: clamp(1.05rem, 1.5vw, 1.22rem); line-height:1.7; color: var(--ink-2) }

.serif-italic{ font-family: var(--serif); font-style: italic; font-weight: 300 }

/* ============================================================
   Layout helpers
   ============================================================ */
.wrap{ max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter) }
.section{ padding: clamp(60px, 9vw, 130px) 0 }
.section-tight{ padding: clamp(48px, 6vw, 80px) 0 }
.divider{ height:1px; background: linear-gradient(90deg, transparent, var(--line) 18%, var(--line) 82%, transparent) }

/* ============================================================
   Top Bar / Navigation
   ============================================================ */
.topbar{
  position: sticky; top:0; z-index: 60;
  background: rgba(251,246,236,.82);
  backdrop-filter: blur(18px) saturate(1.2);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
  border-bottom: 1px solid rgba(11,23,64,.07);
}
.topbar .row{
  display:flex; align-items:center; gap:24px;
  padding: 14px 0;
}
.brand{
  display:flex; align-items:center; gap:12px;
  font-family: var(--serif); font-weight: 500; font-size: 1.32rem;
  letter-spacing: -0.01em; color: var(--navy-900); flex-shrink:0;
}
.brand-mark{
  width:38px; height:38px; border-radius:50%;
  background: radial-gradient(circle at 30% 30%, var(--gold-400), var(--gold-600) 70%);
  position: relative; box-shadow: var(--shadow-sm);
  display:grid; place-items:center;
  color: var(--navy-900); font-family: var(--serif); font-weight:700; font-size: 1rem;
}
.brand-mark::after{
  content:""; position:absolute; inset:3px; border-radius:50%;
  border: 1px dashed rgba(11,23,64,.35);
}
.brand small{ display:block; font-family: var(--mono); font-size:.62rem; letter-spacing:.18em; text-transform:uppercase; color: var(--muted); font-weight: 500 }

nav.primary{ margin-left:auto; display:flex; gap: 4px; flex-wrap: wrap }
nav.primary a{
  padding: 8px 14px; border-radius: 999px;
  font-size: .92rem; color: var(--ink-2); font-weight: 500;
  transition: all .25s ease;
  position: relative;
}
nav.primary a:hover{ color: var(--navy-900); background: rgba(11,23,64,.05) }
nav.primary a.active{ color: var(--paper); background: var(--navy-900) }

.nav-toggle{ display:none; padding:10px; border-radius: 10px; background: var(--navy-900); color: var(--paper); margin-left:auto }

.btn-wapp{
  display: inline-flex; align-items:center; gap:8px;
  padding: 9px 16px; border-radius: 999px;
  background: var(--navy-900); color: var(--paper);
  font-size: .9rem; font-weight: 600;
  transition: transform .2s ease, box-shadow .2s ease;
}
.btn-wapp:hover{ transform: translateY(-1px); box-shadow: var(--shadow-md) }
.btn-wapp .dot{ width: 7px; height: 7px; border-radius: 50%; background: #25d366; box-shadow: 0 0 0 4px rgba(37,211,102,.18); animation: pulse 2s infinite }
@keyframes pulse{ 0%,100%{ box-shadow: 0 0 0 4px rgba(37,211,102,.18)} 50%{ box-shadow: 0 0 0 7px rgba(37,211,102,.05)} }

@media (max-width: 880px){
  nav.primary{ display:none; position:absolute; left:0; right:0; top:100%;
    flex-direction: column; padding: 12px var(--gutter); background: var(--paper);
    border-bottom: 1px solid var(--line); gap: 2px;
  }
  nav.primary.open{ display:flex }
  nav.primary a{ padding: 12px 14px }
  .nav-toggle{ display:inline-flex }
  .btn-wapp.desktop{ display:none }
}

/* ============================================================
   Botones
   ============================================================ */
.btn{
  display: inline-flex; align-items:center; gap: 10px;
  padding: 14px 26px; border-radius: 999px;
  font-weight: 600; font-size: .96rem;
  transition: all .28s cubic-bezier(.2,.7,.3,1.2);
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn-primary{ background: var(--navy-900); color: var(--paper) }
.btn-primary:hover{ background: var(--navy-800); transform: translateY(-2px); box-shadow: var(--shadow-md) }
.btn-gold{ background: var(--gold-500); color: var(--navy-900) }
.btn-gold:hover{ background: var(--gold-400); transform: translateY(-2px); box-shadow: var(--shadow-md) }
.btn-ghost{ background: transparent; color: var(--navy-900); border-color: var(--navy-900) }
.btn-ghost:hover{ background: var(--navy-900); color: var(--paper) }
.btn-paper{ background: var(--paper); color: var(--navy-900) }
.btn-paper:hover{ background: var(--paper-2) }

.arrow{
  width: 18px; height: 18px;
  transition: transform .3s ease;
}
.btn:hover .arrow{ transform: translateX(4px) }

/* ============================================================
   Footer
   ============================================================ */
footer.site{
  background: var(--navy-950);
  color: var(--paper);
  padding: 70px 0 28px;
  position: relative;
  overflow: hidden;
}
footer.site::before{
  content: ""; position: absolute; inset: 0;
  background-image:
    radial-gradient(2px 2px at 12% 24%, rgba(255,255,255,.4) 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 78% 18%, rgba(255,255,255,.3) 50%, transparent 51%),
    radial-gradient(1px 1px at 32% 78%, rgba(255,255,255,.5) 50%, transparent 51%),
    radial-gradient(2px 2px at 88% 62%, rgba(201,155,63,.6) 50%, transparent 51%),
    radial-gradient(1px 1px at 56% 42%, rgba(255,255,255,.3) 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 22% 58%, rgba(255,255,255,.25) 50%, transparent 51%);
  opacity: .8;
}
footer.site .wrap{ position: relative }
footer.site h4{ font-family: var(--serif); font-size: 1.15rem; font-weight: 500; color: var(--gold-400); margin-bottom: 12px }
.foot-grid{
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px;
  padding-bottom: 50px; border-bottom: 1px solid rgba(255,255,255,.1);
}
@media (max-width: 880px){
  .foot-grid{ grid-template-columns: 1fr 1fr; gap: 32px }
}
.foot-grid p, .foot-grid a, .foot-grid li{ font-size: .92rem; color: rgba(251,246,236,.78); line-height: 1.7 }
.foot-grid a:hover{ color: var(--gold-400) }
.foot-grid ul{ list-style:none; padding:0; margin: 0; display:grid; gap: 6px }
.foot-bottom{
  display:flex; justify-content: space-between; align-items: center; gap: 16px;
  padding-top: 22px; font-size: .8rem; color: rgba(251,246,236,.5);
  flex-wrap: wrap;
}

/* ============================================================
   Cards comunes
   ============================================================ */
.card-tile{
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all .35s cubic-bezier(.2,.7,.3,1.2);
  position: relative;
  overflow: hidden;
}
.card-tile:hover{ transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--gold-200) }
.card-tile .num{
  font-family: var(--serif); font-size: 3rem; line-height:1; color: var(--gold-500);
  font-style: italic; font-weight: 300;
}

/* ============================================================
   Animaciones de entrada
   ============================================================ */
.reveal{ opacity:0; transform: translateY(28px); transition: opacity .9s ease, transform .9s cubic-bezier(.2,.7,.3,1.2) }
.reveal.in{ opacity: 1; transform: none }

/* ============================================================
   Utilitarios
   ============================================================ */
.center{ text-align:center }
.muted{ color: var(--muted) }
.gold{ color: var(--gold-500) }
.navy-bg{ background: var(--navy-900); color: var(--paper) }
.paper-bg{ background: var(--paper-2) }
.grid{ display: grid; gap: 24px }
.flex-row{ display:flex; gap: 14px; flex-wrap: wrap; align-items: center }
.tag{
  display: inline-block; padding: 5px 12px; border-radius: 999px;
  font-size: .72rem; font-weight: 600; letter-spacing: .04em;
  background: var(--paper-2); color: var(--ink-2); border: 1px solid var(--line);
}
.tag.gold{ background: var(--gold-500); color: var(--navy-900); border-color: transparent }
.tag.navy{ background: var(--navy-900); color: var(--paper); border-color: transparent }

/* selección */
::selection{ background: var(--gold-400); color: var(--navy-900) }