/* ============================================================
   MAIN.CSS — Variables, Reset, Tipografía
============================================================ */

:root {
  /* Brand colors */
  --color-navy:        #1B4F8A;
  --color-navy-dark:   #143A66;
  --color-navy-light:  #2563a8;
  --color-gold:        #9B8860;
  --color-gold-light:  #C4AA7A;
  --color-gold-pale:   #E8D9BC;

  /* Neutrals */
  --color-charcoal:    #1C1C1E;
  --color-charcoal-2:  #2A2A2E;
  --color-charcoal-3:  #3A3A40;
  --color-white:       #FFFFFF;
  --color-off-white:   #F5F3EF;
  --color-gray-light:  #E8E8E8;
  --color-gray:        #9A9A9A;
  --color-gray-dark:   #6A6A6A;

  /* WhatsApp green */
  --color-wa:          #25D366;
  --color-wa-dark:     #1ebe5d;

  /* Semantic */
  --bg-base:           var(--color-charcoal);
  --bg-alt:            var(--color-charcoal-2);
  --bg-card:           var(--color-charcoal-3);
  --text-primary:      var(--color-white);
  --text-secondary:    #C8C8CC;
  --text-muted:        var(--color-gray);
  --text-accent:       var(--color-gold-light);
  --border-subtle:     rgba(255,255,255,0.08);
  --border-gold:       rgba(155,136,96,0.35);

  /* Typography */
  --font-serif:        'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  --font-sans:         'Inter', system-ui, -apple-system, sans-serif;

  --fs-xs:    0.75rem;
  --fs-sm:    0.875rem;
  --fs-base:  1rem;
  --fs-md:    1.125rem;
  --fs-lg:    1.25rem;
  --fs-xl:    1.5rem;
  --fs-2xl:   2rem;
  --fs-3xl:   2.5rem;
  --fs-4xl:   3.25rem;
  --fs-hero:  clamp(2rem, 5vw, 3.5rem);

  /* Spacing */
  --sp-1:  0.25rem;
  --sp-2:  0.5rem;
  --sp-3:  0.75rem;
  --sp-4:  1rem;
  --sp-5:  1.25rem;
  --sp-6:  1.5rem;
  --sp-8:  2rem;
  --sp-10: 2.5rem;
  --sp-12: 3rem;
  --sp-16: 4rem;
  --sp-20: 5rem;
  --sp-24: 6rem;
  --sp-32: 8rem;

  /* Layout */
  --container-max:  1280px;
  --container-pad:  1.5rem;
  --section-py:     5rem;

  /* Radius */
  --r-sm:   4px;
  --r-md:   8px;
  --r-lg:   16px;
  --r-xl:   24px;
  --r-full: 9999px;

  /* Shadows */
  --shadow-card:  0 4px 24px rgba(0,0,0,0.45);
  --shadow-modal: 0 24px 80px rgba(0,0,0,0.75);
  --shadow-btn:   0 4px 18px rgba(27,79,138,0.4);
  --shadow-gold:  0 4px 18px rgba(155,136,96,0.35);

  /* Transitions */
  --t-fast: 150ms ease;
  --t-base: 250ms ease;
  --t-slow: 400ms ease;

  /* Z-index */
  --z-nav:      100;
  --z-modal:    300;
  --z-overlay:  299;
  --z-floating: 200;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  color: var(--text-primary);
  background-color: var(--bg-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, video { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
ul, ol { list-style: none; }
address { font-style: normal; }

/* ---- Typography ---- */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  line-height: 1.15;
  font-weight: 600;
}

.section-eyebrow {
  display: block;
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-gold-light);
  margin-bottom: var(--sp-3);
}

.section-title {
  font-size: clamp(var(--fs-2xl), 4vw, var(--fs-4xl));
  color: var(--text-primary);
  margin-bottom: var(--sp-4);
}

.section-subtitle {
  font-size: var(--fs-md);
  color: var(--text-secondary);
  max-width: 52ch;
  margin: 0 auto;
}

/* ---- Container ---- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 0.75rem 1.75rem;
  border-radius: var(--r-full);
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  font-weight: 500;
  letter-spacing: 0.04em;
  transition: all var(--t-base);
  white-space: nowrap;
  cursor: pointer;
  border: 2px solid transparent;
}

.btn--primary {
  background: var(--color-navy);
  color: var(--color-white);
  border-color: var(--color-navy);
  box-shadow: var(--shadow-btn);
}
.btn--primary:hover { background: var(--color-navy-light); border-color: var(--color-navy-light); transform: translateY(-1px); }
.btn--primary:active { transform: translateY(0); }

.btn--outline {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,0.6);
}
.btn--outline:hover { background: rgba(255,255,255,0.1); border-color: var(--color-white); }

.btn--wa {
  background: var(--color-wa);
  color: var(--color-white);
  border-color: var(--color-wa);
  box-shadow: 0 4px 18px rgba(37,211,102,0.4);
}
.btn--wa:hover { background: var(--color-wa-dark); border-color: var(--color-wa-dark); transform: translateY(-1px); }

.btn--lg { padding: 1rem 2.25rem; font-size: var(--fs-base); }
.btn--full { width: 100%; justify-content: center; }

/* ---- Focus visible ---- */
:focus-visible { outline: 2px solid var(--color-gold-light); outline-offset: 3px; border-radius: 2px; }