/* ==========================================================================
   VicentePimienta.com — Global Design System
   FT-003 · Implements 02_VP_VISUAL_STYLE_GUIDE_v1.0 + 06_VP_WEBSITE_PRODUCTION_BLUEPRINT_v1.0
   Colors per VP_LOGO_ASSET_README (approved core palette)
   ========================================================================== */

:root {
  /* Approved core palette */
  --vp-blue: #1D2A7C;          /* Primary brand color */
  --vp-blue-deep: #141d5c;     /* Secondary blue — depth/layering */
  --vp-blue-soft: #3a49a0;     /* Secondary blue — subtle emphasis */
  --vp-green: #14B58A;         /* Activation only: CTAs, confirmation */
  --vp-green-deep: #0f9873;
  --vp-accent: #00AEEF;        /* Accent blue */
  --vp-light-blue: #CDE8F5;
  --vp-gray: #D6D6D6;          /* Separators, supporting UI */
  --vp-white: #FFFFFF;

  /* Derived neutrals (text hierarchy) */
  --text-primary: #1a2036;
  --text-secondary: #4c5268;
  --text-muted: #7a8095;
  --surface: #FFFFFF;
  --surface-tint: #f6f9fc;

  /* Typography */
  --font-sans: 'DM Sans', 'Montserrat', Arial, sans-serif;

  /* Spacing scale */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6.5rem;

  --radius: 14px;
  --radius-sm: 10px;
  --shadow-card: 0 6px 24px rgba(29, 42, 124, 0.07);
  --shadow-card-hover: 0 10px 32px rgba(29, 42, 124, 0.12);
  --container: 1140px;
}

/* --------------------------------------------------------------------------
   Reset & base
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--text-primary);
  background: var(--vp-white);
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; height: auto; display: block; }

h1, h2, h3, h4 {
  color: var(--vp-blue);
  line-height: 1.2;
  margin: 0 0 var(--space-2);
  font-weight: 700;
  letter-spacing: -0.015em;
}

h1 { font-size: clamp(2.3rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.7rem, 3.5vw, 2.3rem); }
h3 { font-size: 1.3rem; }
h4 { font-size: 1.1rem; }

p { margin: 0 0 var(--space-2); }

a {
  color: var(--vp-blue);
  text-decoration: none;
  transition: color 0.2s ease;
}
a:hover { color: var(--vp-blue-soft); }

:focus-visible {
  outline: 3px solid var(--vp-accent);
  outline-offset: 3px;
  border-radius: 3px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--vp-blue);
  color: var(--vp-white);
  padding: 0.75rem 1.25rem;
  z-index: 200;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus {
  left: 0;
  color: var(--vp-white);
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 2.5rem);
}

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--vp-accent);
  margin-bottom: var(--space-2);
}

.lead {
  font-size: 1.25rem;
  line-height: 1.65;
  color: var(--text-secondary);
}

.text-muted { color: var(--text-muted); }
.measure { max-width: 46em; }
.center { text-align: center; }
.center .measure { margin-left: auto; margin-right: auto; }

/* --------------------------------------------------------------------------
   Buttons — per Visual Style Guide component spec
   -------------------------------------------------------------------------- */
.btn {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1;
  padding: 1rem 1.75rem;
  border-radius: 999px;
  border: 2px solid transparent;
  cursor: pointer;
  text-align: center;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
}
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--vp-blue);
  color: var(--vp-white);
}
.btn-primary:hover {
  background: var(--vp-blue-deep);
  color: var(--vp-white);
}

.btn-secondary {
  background: var(--vp-white);
  color: var(--vp-blue);
  border-color: var(--vp-blue);
}
.btn-secondary:hover {
  background: var(--vp-blue);
  color: var(--vp-white);
}

.btn-activate {
  background: var(--vp-green);
  color: var(--vp-white);
}
.btn-activate:hover {
  background: var(--vp-green-deep);
  color: var(--vp-white);
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}

.text-link {
  font-weight: 600;
}
.text-link::after { white-space: nowrap; }
.text-link::after {
  content: " \2192";
  transition: margin-left 0.2s ease;
}
.text-link:hover::after { margin-left: 4px; }

/* --------------------------------------------------------------------------
   Header / navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(214, 214, 214, 0.5);
}

.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  min-height: 76px;
}

.brand {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.brand img { height: 44px; width: auto; }

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 2vw, 1.75rem);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 0.4rem 0.15rem;
  border-bottom: 2px solid transparent;
}
.nav-links a:hover { color: var(--vp-blue); }
.nav-links a[aria-current="page"] {
  color: var(--vp-blue);
  border-bottom-color: var(--vp-green);
}

.nav-cta {
  background: var(--vp-green);
  color: var(--vp-white) !important;
  font-size: 0.9rem;
  font-weight: 700;
  padding: 0.7rem 1.3rem !important;
  border-radius: 999px;
  border-bottom: none !important;
}
.nav-cta:hover { background: var(--vp-green-deep); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: 0.5rem;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2.5px;
  border-radius: 2px;
  background: var(--vp-blue);
  margin: 5px 0;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--vp-white);
    border-bottom: 1px solid var(--vp-gray);
    padding: var(--space-2) clamp(1.25rem, 4vw, 2.5rem) var(--space-3);
    box-shadow: 0 12px 24px rgba(29, 42, 124, 0.08);
  }
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; }
  .nav-links a {
    display: block;
    padding: 0.85rem 0;
    font-size: 1.05rem;
    border-bottom: 1px solid var(--surface-tint);
  }
  .nav-links .nav-cta {
    display: inline-block;
    margin-top: var(--space-2);
    text-align: center;
  }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }
}

/* --------------------------------------------------------------------------
   Sections & layout
   -------------------------------------------------------------------------- */
.section { padding: var(--space-6) 0; }
.section-tint { background: var(--surface-tint); }
.section-blue {
  background: linear-gradient(160deg, var(--vp-blue) 0%, var(--vp-blue-deep) 100%);
  color: rgba(255, 255, 255, 0.88);
}
.section-blue h1, .section-blue h2, .section-blue h3 { color: var(--vp-white); }
.section-blue .lead { color: rgba(255, 255, 255, 0.82); }
.section-blue .eyebrow { color: var(--vp-light-blue); }

/* Logo-derived diagonal transition (approved graphic language) */
.diagonal-top { position: relative; }
.diagonal-top::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 100%;
  height: clamp(40px, 6vw, 80px);
  background: inherit;
  clip-path: polygon(0 0, 100% 0, 100% 18%, 0 100%);
}

.section-head { margin-bottom: var(--space-4); }

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}
.grid-2 > *, .grid-3 > * { min-width: 0; }
@media (max-width: 900px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.hero {
  padding: clamp(3.5rem, 8vw, 6.5rem) 0;
  background:
    linear-gradient(115deg, rgba(205, 232, 245, 0.35) 0%, rgba(255, 255, 255, 0) 55%),
    var(--vp-white);
}

.hero-portrait {
  position: relative;
}
.hero-portrait img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow-card-hover);
}
/* logo-derived angular frame accent */
.hero-portrait::after {
  content: "";
  position: absolute;
  right: -16px;
  bottom: -16px;
  width: 45%;
  height: 45%;
  border-right: 4px solid var(--vp-green);
  border-bottom: 4px solid var(--vp-accent);
  border-radius: 0 0 var(--radius) 0;
  z-index: -1;
}

.hero .lead { margin-bottom: var(--space-3); }

/* --------------------------------------------------------------------------
   Cards
   -------------------------------------------------------------------------- */
.card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: var(--space-4) var(--space-3);
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.25s ease, transform 0.25s ease;
  display: flex;
  flex-direction: column;
}
.card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-3px);
}
.card h3 { margin-top: var(--space-2); }
.card p { color: var(--text-secondary); flex-grow: 1; }

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--vp-light-blue);
}
.card-icon svg { width: 26px; height: 26px; }

/* --------------------------------------------------------------------------
   Editorial quote block
   -------------------------------------------------------------------------- */
.quote-block {
  border-left: 4px solid var(--vp-green);
  padding: var(--space-1) 0 var(--space-1) var(--space-3);
  margin: var(--space-4) 0;
}
.quote-block p {
  font-size: clamp(1.25rem, 2.5vw, 1.6rem);
  line-height: 1.5;
  font-weight: 500;
  color: var(--vp-blue);
  margin: 0;
}
.quote-block cite {
  display: block;
  margin-top: var(--space-2);
  font-style: normal;
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   Framework / diagram
   -------------------------------------------------------------------------- */
.flow-diagram {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin: var(--space-4) 0;
}
.flow-step {
  background: var(--surface);
  border: 2px solid var(--vp-light-blue);
  border-radius: var(--radius-sm);
  padding: 0.9rem 1.4rem;
  font-weight: 600;
  color: var(--vp-blue);
  text-align: center;
}
.flow-arrow {
  color: var(--vp-accent);
  font-size: 1.3rem;
  font-weight: 700;
}
.section-blue .flow-step {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(205, 232, 245, 0.35);
  color: var(--vp-white);
}

/* --------------------------------------------------------------------------
   Stats block
   -------------------------------------------------------------------------- */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-3);
  text-align: center;
}
.stat-value {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--vp-blue);
  line-height: 1.1;
}
.stat-label {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-top: 0.35rem;
}

/* --------------------------------------------------------------------------
   Callout banner / final CTA
   -------------------------------------------------------------------------- */
.callout {
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--vp-blue) 0%, var(--vp-blue-deep) 70%);
  color: rgba(255, 255, 255, 0.88);
  padding: clamp(2.5rem, 6vw, 4.5rem);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.callout::before {
  content: "";
  position: absolute;
  top: 0;
  right: -60px;
  width: 260px;
  height: 100%;
  background: linear-gradient(115deg, transparent 45%, rgba(0, 174, 239, 0.18) 45.5%, rgba(20, 181, 138, 0.16) 100%);
  pointer-events: none;
}
.callout h2 { color: var(--vp-white); }
.callout p {
  max-width: 40em;
  margin-left: auto;
  margin-right: auto;
  color: rgba(255, 255, 255, 0.82);
}
.callout .btn-group { justify-content: center; margin-top: var(--space-3); }

/* --------------------------------------------------------------------------
   Page hero (interior pages)
   -------------------------------------------------------------------------- */
.page-hero {
  padding: clamp(3rem, 7vw, 5.5rem) 0;
  background:
    linear-gradient(115deg, rgba(205, 232, 245, 0.35) 0%, rgba(255, 255, 255, 0) 55%),
    var(--vp-white);
  border-bottom: 1px solid var(--surface-tint);
}
.page-hero .lead { max-width: 44em; }

/* --------------------------------------------------------------------------
   Lists
   -------------------------------------------------------------------------- */
.check-list {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-3);
}
.check-list li {
  position: relative;
  padding-left: 2rem;
  margin-bottom: 0.85rem;
  color: var(--text-secondary);
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.42em;
  width: 0.95rem;
  height: 0.5rem;
  border-left: 2.5px solid var(--vp-green);
  border-bottom: 2.5px solid var(--vp-green);
  transform: rotate(-45deg);
}

/* --------------------------------------------------------------------------
   Contact form
   -------------------------------------------------------------------------- */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
}
@media (max-width: 700px) { .form-grid { grid-template-columns: 1fr; } }

.form-field { display: flex; flex-direction: column; }
.form-field.full { grid-column: 1 / -1; }
.form-field label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--vp-blue);
  margin-bottom: 0.4rem;
}
.form-field input,
.form-field select,
.form-field textarea {
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--text-primary);
  padding: 0.85rem 1rem;
  border: 1.5px solid var(--vp-gray);
  border-radius: var(--radius-sm);
  background: var(--vp-white);
  transition: border-color 0.2s ease;
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--vp-accent);
  outline: none;
}
.form-note {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--vp-blue-deep);
  color: rgba(255, 255, 255, 0.75);
  padding: var(--space-5) 0 var(--space-3);
  margin-top: var(--space-6);
  position: relative;
}
.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(90deg, var(--vp-green) 0%, var(--vp-accent) 50%, var(--vp-blue-soft) 100%);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }

.footer-brand img { height: 40px; margin-bottom: var(--space-2); }
.footer-brand p {
  font-size: 0.95rem;
  max-width: 30em;
}

.site-footer h4 {
  color: var(--vp-white);
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: var(--space-2);
}
.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
}
.footer-links li { margin-bottom: 0.6rem; }
.footer-links a {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.97rem;
}
.footer-links a:hover { color: var(--vp-white); }

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: var(--space-3);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-2);
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.55);
}
.footer-bottom a { color: rgba(255, 255, 255, 0.7); }
.footer-bottom a:hover { color: var(--vp-white); }

/* --------------------------------------------------------------------------
   Reveal on scroll (subtle, motion supports understanding)
   -------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .card, .btn { transition: none; }
}