/* ==========================================================================
   KLIBRA CONSULTING — Sistema de diseño web  v1.0
   Importa este archivo en tu web: <link rel="stylesheet" href="klibra.css">
   ========================================================================== */

/* ---------- Tipografías (auto-alojadas, carpeta /fonts) ---------- */
@font-face { font-family: "Montserrat"; font-weight: 500; font-style: normal; font-display: swap; src: url("fonts/montserrat-latin-500-normal.woff2") format("woff2"); }
@font-face { font-family: "Montserrat"; font-weight: 600; font-style: normal; font-display: swap; src: url("fonts/montserrat-latin-600-normal.woff2") format("woff2"); }
@font-face { font-family: "Montserrat"; font-weight: 700; font-style: normal; font-display: swap; src: url("fonts/montserrat-latin-700-normal.woff2") format("woff2"); }
@font-face { font-family: "Inter"; font-weight: 400; font-style: normal; font-display: swap; src: url("fonts/inter-latin-400-normal.woff2") format("woff2"); }
@font-face { font-family: "Inter"; font-weight: 500; font-style: normal; font-display: swap; src: url("fonts/inter-latin-500-normal.woff2") format("woff2"); }
@font-face { font-family: "Inter"; font-weight: 600; font-style: normal; font-display: swap; src: url("fonts/inter-latin-600-normal.woff2") format("woff2"); }

:root {
  /* ---------- Paleta de marca ---------- */
  --k-petroleo:    #124E59;  /* Teal profundo · fondos de icono, hover de botones */
  --k-teal:        #155E6B;  /* COLOR PRINCIPAL · botones, enlaces, títulos de acento */
  --k-teal-medio:  #1C6B78;  /* Banda interior del símbolo */
  --k-agua:        #3A8D9B;  /* Acento · gráficos, iconos, detalles. No para texto pequeño */
  --k-agua-claro:  #6FB7C3;  /* Acento para texto/enlaces sobre fondo oscuro */
  --k-agua-50:     #E7F2F4;  /* Fondos suaves de acento */

  --k-noche:       #1C232A;  /* Fondo oscuro profundo (footer, hero) */
  --k-grafito:     #262F38;  /* Fondo oscuro de marca · texto principal sobre claro */
  --k-pizarra:     #5B6772;  /* Texto secundario sobre claro */
  --k-niebla:      #8A96A3;  /* Texto secundario sobre oscuro */
  --k-linea:       #DDE3E8;  /* Bordes y separadores sobre claro */
  --k-nube:        #F4F6F7;  /* Fondo claro alternativo */
  --k-blanco:      #FFFFFF;

  /* ---------- Roles (úsalos en vez de los colores directos) ---------- */
  --color-bg:            var(--k-blanco);
  --color-bg-alt:        var(--k-nube);
  --color-bg-dark:       var(--k-grafito);
  --color-bg-deep:       var(--k-noche);
  --color-text:          var(--k-grafito);
  --color-text-muted:    var(--k-pizarra);
  --color-text-inverse:  var(--k-blanco);
  --color-text-inverse-muted: var(--k-niebla);
  --color-primary:       var(--k-teal);
  --color-primary-hover: var(--k-petroleo);
  --color-accent:        var(--k-agua);
  --color-accent-on-dark:var(--k-agua-claro);
  --color-border:        var(--k-linea);
  --color-focus:         var(--k-agua);

  /* ---------- Tipografía ---------- */
  --font-display: "Montserrat", "Segoe UI", system-ui, sans-serif;
  --font-body:    "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;

  --fs-overline: 0.8125rem;                         /* 13px */
  --fs-small:    0.875rem;                          /* 14px */
  --fs-body:     1.0625rem;                         /* 17px */
  --fs-lead:     clamp(1.125rem, 1rem + 0.5vw, 1.3125rem);
  --fs-h4:       1.25rem;
  --fs-h3:       clamp(1.375rem, 1.2rem + 0.6vw, 1.625rem);
  --fs-h2:       clamp(1.75rem, 1.4rem + 1.4vw, 2.5rem);
  --fs-h1:       clamp(2.25rem, 1.6rem + 2.8vw, 4rem);

  --tracking-overline: 0.22em;   /* Eco del espaciado de "CONSULTING" */
  --tracking-display:  -0.01em;

  /* ---------- Espaciado (base 8) ---------- */
  --s-1: 0.25rem; --s-2: 0.5rem; --s-3: 0.75rem; --s-4: 1rem; --s-5: 1.5rem;
  --s-6: 2rem; --s-7: 3rem; --s-8: 4rem; --s-9: 6rem; --s-10: 8rem;
  --section-y: clamp(4rem, 3rem + 5vw, 7.5rem);
  --container: 1200px;
  --gutter: clamp(1rem, 0.5rem + 2.5vw, 2.5rem);

  /* ---------- Forma ---------- */
  --radius-sm: 4px;      /* El logo es de cantos vivos: radios contenidos */
  --radius:    8px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 2px rgba(28, 35, 42, .06), 0 1px 3px rgba(28, 35, 42, .08);
  --shadow:    0 6px 24px -8px rgba(28, 35, 42, .18);
  --shadow-lg: 0 24px 60px -20px rgba(18, 78, 89, .35);

  /* Ángulo de la marca: la diagonal del chevron (≈53°) */
  --k-angle: 53deg;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

/* ==========================================================================
   Base
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: var(--tracking-display);
  margin: 0 0 var(--s-4);
  text-wrap: balance;
}
h1 { font-size: var(--fs-h1); font-weight: 700; }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }
h4 { font-size: var(--fs-h4); }
p  { margin: 0 0 var(--s-4); text-wrap: pretty; }

a { color: var(--color-primary); text-underline-offset: 3px; }
a:hover { color: var(--color-primary-hover); }
:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 3px; }

/* ==========================================================================
   Componentes
   ========================================================================== */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.section   { padding-block: var(--section-y); }
.section--alt  { background: var(--color-bg-alt); }
.section--dark { background: var(--color-bg-dark); color: var(--color-text-inverse); }
.section--dark a { color: var(--color-accent-on-dark); }

/* Antetítulo con el punto de la marca */
.overline {
  display: inline-flex; align-items: center; gap: .6em;
  font-family: var(--font-display); font-weight: 600;
  font-size: var(--fs-overline); letter-spacing: var(--tracking-overline);
  text-transform: uppercase; color: var(--color-primary);
  margin-bottom: var(--s-4);
}
.overline::before {
  content: ""; width: .55em; height: .55em; border-radius: 50%;
  background: var(--color-accent);
}
.section--dark .overline { color: var(--color-accent-on-dark); }

.lead { font-size: var(--fs-lead); color: var(--color-text-muted); max-width: 62ch; }
.section--dark .lead { color: var(--color-text-inverse-muted); }

/* Botones */
.btn {
  display: inline-flex; align-items: center; gap: .6em;
  font-family: var(--font-display); font-weight: 600; font-size: .9375rem;
  letter-spacing: .02em; text-decoration: none;
  padding: .9em 1.5em; border-radius: var(--radius-sm);
  border: 1.5px solid transparent; cursor: pointer;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease);
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--color-primary); color: var(--k-blanco); }
.btn--primary:hover { background: var(--color-primary-hover); color: var(--k-blanco); }
.btn--outline { border-color: currentColor; color: var(--color-primary); background: transparent; }
.btn--outline:hover { background: var(--color-primary); border-color: var(--color-primary); color: var(--k-blanco); }
.section--dark .btn--outline, .hero .btn--outline { color: var(--k-blanco); }
.section--dark .btn--outline:hover, .hero .btn--outline:hover { background: var(--k-blanco); color: var(--k-grafito); border-color: var(--k-blanco); }
.btn--light { background: var(--k-blanco); color: var(--k-grafito); }
.btn--light:hover { background: var(--k-agua-50); color: var(--k-grafito); }
/* Flecha-chevron: eco del símbolo */
.btn .chev { width: .7em; height: .7em; transition: transform .2s var(--ease); }
.btn:hover .chev { transform: translateX(3px); }

/* Tarjetas */
.card {
  background: var(--k-blanco); border: 1px solid var(--color-border);
  border-radius: var(--radius); padding: var(--s-6);
  transition: box-shadow .25s var(--ease), border-color .25s var(--ease), transform .25s var(--ease);
}
.card:hover { box-shadow: var(--shadow); border-color: transparent; transform: translateY(-2px); }
.card__icon {
  width: 48px; height: 48px; border-radius: var(--radius-sm);
  display: grid; place-items: center;
  background: var(--k-agua-50); color: var(--color-primary); margin-bottom: var(--s-5);
}

/* Barra de acento: el "pilar" de la K */
.accent-bar { display: block; width: 44px; height: 4px; background: var(--color-accent); border: 0; margin: 0 0 var(--s-5); }

/* Patrón de chevrons (fondo decorativo) */
.k-pattern {
  background-image:
    linear-gradient(calc(90deg + var(--k-angle)), transparent 46%, rgba(58,141,155,.08) 46% 54%, transparent 54%);
  background-size: 48px 64px;
}

/* Formularios */
.field { display: grid; gap: var(--s-2); margin-bottom: var(--s-5); }
.field label { font-weight: 500; font-size: var(--fs-small); }
.field input, .field textarea, .field select {
  font: inherit; color: var(--color-text);
  padding: .8em 1em; border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  background: var(--k-blanco); transition: border-color .2s, box-shadow .2s;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--color-accent); box-shadow: 0 0 0 3px rgba(58,141,155,.2);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}