/*===============================================================
  GTR — Gestión Total del Riesgo
  Sistema de diseño v2 — "Earth Authority"
  Display: Space Grotesk · Body: DM Sans
===============================================================*/

/*=============== TOKENS ===============*/
:root {
  /* Palette — navy + celeste + red (match GTR brand) */
  --ink:          #081325;
  --ink-800:      #0e2040;
  --ink-600:      #1a3059;
  --primary:      #1d3d7a;
  --primary-600:  #2854a8;
  --primary-400:  #4a86c9;
  --primary-100:  #cfdcef;
  --celeste:      #38a3d6;
  --celeste-400:  #5cc1e8;
  --celeste-200:  #b8def2;
  --celeste-100:  #e0f0fa;
  --accent:       #c8162b;
  --accent-600:   #9b1020;
  --accent-400:   #e54555;
  --accent-100:   #fde0e4;
  --paper:        #f5f8fc;
  --paper-soft:   #fafcfe;
  --paper-alt:    #e9eff6;
  --paper-line:   #d2dbe5;
  --muted:        #5a6980;
  --muted-soft:   #8794aa;
  --white:        #ffffff;

  /* Typography */
  --font-display: 'Space Grotesk', 'Syne', system-ui, sans-serif;
  --font-body:    'DM Sans', system-ui, -apple-system, sans-serif;

  --fs-display:   clamp(3rem, 7vw, 5.75rem);
  --fs-h1:        clamp(2.25rem, 5vw, 4.25rem);
  --fs-h2:        clamp(1.9rem, 3.8vw, 3rem);
  --fs-h3:        clamp(1.35rem, 2.3vw, 1.8rem);
  --fs-h4:        1.125rem;
  --fs-body:      1.0625rem;
  --fs-sm:        0.9375rem;
  --fs-micro:     0.75rem;

  --lh-tight:     1.05;
  --lh-snug:      1.25;
  --lh-body:      1.65;

  /* Spacing */
  --s-1: 0.5rem;
  --s-2: 1rem;
  --s-3: 1.5rem;
  --s-4: 2rem;
  --s-5: 3rem;
  --s-6: 4.5rem;
  --s-7: 6.5rem;
  --s-8: 9rem;

  /* Radius */
  --r-sm: 6px;
  --r-md: 14px;
  --r-lg: 24px;

  /* Shadow */
  --shadow-sm: 0 1px 2px rgba(8, 19, 37, 0.08);
  --shadow-md: 0 10px 30px -12px rgba(8, 19, 37, 0.22);
  --shadow-lg: 0 30px 60px -20px rgba(8, 19, 37, 0.3);

  /* Motion */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);          /* out-expo: soft, fluid finish */
  --ease-smooth: cubic-bezier(0.65, 0, 0.35, 1);  /* in-out-cubic: symmetric */
  --dur:  450ms;
  --dur-fast: 260ms;
  --dur-slow: 800ms;

  /* Legacy aliases (retrocompat con clases existentes) */
  --primary-color: var(--primary);
  --primary-light: var(--primary-600);
  --accent-color:  var(--accent);
  --dark:          var(--ink);
  --dark-alt:      var(--ink-800);
  --gray:          var(--muted);
  --gray-light:    var(--paper-line);
  --gray-lighter:  var(--paper-alt);
  --font-heading:  var(--font-display);
  --h1-size:       var(--fs-h1);
  --h2-size:       var(--fs-h2);
  --h3-size:       var(--fs-h3);
  --h4-size:       var(--fs-h4);
  --body-size:     var(--fs-body);
  --small-size:    var(--fs-sm);
  --spacing-xs:    var(--s-1);
  --spacing-sm:    var(--s-2);
  --spacing-md:    var(--s-3);
  --spacing-lg:    var(--s-5);
  --spacing-xl:    var(--s-7);
  --radius-sm:     var(--r-sm);
  --radius-md:     var(--r-md);
  --radius-lg:     var(--r-lg);
  --transition:    all var(--dur) var(--ease);
}

/*=============== RESET / BASE ===============*/
* { margin: 0; padding: 0; box-sizing: border-box; }

*::selection { background: var(--primary); color: var(--paper); }
::selection     { background: var(--primary); color: var(--paper); }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px; /* fixed-header offset when anchoring */
  -webkit-text-size-adjust: 100%;
}

section[id] { scroll-margin-top: 96px; }

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--ink);
  background: var(--paper);
  overflow-x: clip;
  font-feature-settings: "ss01";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  animation: pageIn 700ms var(--ease) both;
}

@keyframes pageIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

html { overflow-x: clip; }

/* Skip to content — accessibility */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--ink);
  color: var(--paper);
  padding: 0.75rem 1.25rem;
  border-radius: var(--r-sm);
  font-weight: 600;
  font-size: 0.9375rem;
  z-index: 2000;
  transition: top var(--dur) var(--ease);
}

.skip-link:focus { top: 1rem; }

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(29, 61, 122, 0.06), transparent 60%),
    radial-gradient(900px 500px at 110% 110%, rgba(200, 22, 43, 0.05), transparent 60%);
  pointer-events: none;
  z-index: -1;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: var(--lh-tight);
  letter-spacing: -0.025em;
  color: var(--ink);
}

h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); font-weight: 600; }
h4 { font-size: var(--fs-h4); font-weight: 600; letter-spacing: -0.01em; }

a { color: inherit; text-decoration: none; transition: color var(--dur) var(--ease); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

button { font: inherit; cursor: pointer; border: none; background: none; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 3px;
}

/*=============== LAYOUT HELPERS ===============*/
.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 var(--s-3);
}

.section {
  padding: var(--s-7) 0;
}

/*=============== SECTION HEADER ===============*/
.section-header {
  max-width: 760px;
  margin: 0 auto var(--s-6);
  text-align: center;
}

.section-header__label {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-body);
  font-size: var(--fs-micro);
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: var(--s-2);
  padding: 0;
  background: none;
  border-radius: 0;
}

.section-header__label::before,
.section-header__label::after {
  content: '';
  width: 28px;
  height: 1px;
  background: currentColor;
  opacity: 0.6;
}

.section-header__title {
  max-width: 760px;
  margin: 0 auto var(--s-3);
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  font-weight: 700;
}

.section-header__description {
  max-width: 580px;
  margin: 0 auto;
  color: var(--muted);
  font-size: 1.0625rem;
}

/*=============== BUTTONS ===============*/
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  padding: 0.95rem 1.75rem;
  border-radius: 999px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: -0.005em;
  cursor: pointer;
  border: 1.5px solid transparent;
  white-space: nowrap;
  overflow: hidden;
  isolation: isolate;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  transform: translateY(101%);
  transition: transform var(--dur-slow) var(--ease);
  z-index: -1;
}

.btn:hover::before { transform: translateY(0); }

.btn--primary {
  background: var(--ink);
  color: var(--paper);
}
.btn--primary::before { background: var(--accent); }
.btn--primary:hover { color: var(--ink); }

.btn--secondary {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink);
}
.btn--secondary::before { background: var(--ink); }
.btn--secondary:hover { color: var(--paper); border-color: var(--ink); }

.btn--light {
  background: var(--paper);
  color: var(--ink);
}
.btn--light::before { background: var(--accent); }
.btn--light:hover { color: var(--ink); }

.btn--full { width: 100%; }

.btn > svg,
.btn > span { position: relative; z-index: 1; }

/*=============== HEADER / NAV ===============*/
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(245, 248, 252, 0.8);
  backdrop-filter: blur(16px) saturate(1.1);
  -webkit-backdrop-filter: blur(16px) saturate(1.1);
  border-bottom: 1px solid transparent;
  z-index: 1000;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.header.scrolled {
  background: rgba(245, 248, 252, 0.96);
  border-bottom-color: var(--paper-line);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.125rem var(--s-3);
}

.nav__logo {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: 12px;
  transition: background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.nav__logo::after {
  content: '';
  position: absolute;
  right: -10px;
  top: 50%;
  width: 1px;
  height: 28px;
  background: var(--paper-line);
  transform: translateY(-50%);
}

.nav__logo:hover {
  background: var(--celeste-100);
  transform: translateY(-1px);
}

.nav__logo-img {
  height: 48px;
  width: auto;
  display: block;
}

.nav__menu { display: flex; align-items: center; }

.nav__list {
  display: flex;
  gap: var(--s-4);
  margin: 0;
}

.nav__link {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--ink);
  padding: 0.5rem 0;
  position: relative;
  display: inline-block;
}

.nav__link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform var(--dur) var(--ease);
}

.nav__link:hover::after {
  transform: scaleX(1);
  transform-origin: left center;
}

.nav__link.active {
  color: var(--primary);
  font-weight: 600;
}

.nav__toggle,
.nav__close {
  display: none;
  cursor: pointer;
  color: var(--ink);
}

/*=============== HERO ===============*/
.hero {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: 9rem 0 5rem;
  position: relative;
  overflow: hidden;
  contain: layout paint;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--paper-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--paper-line) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: 0.35;
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, black 20%, transparent 75%);
          mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, black 20%, transparent 75%);
  pointer-events: none;
}

.hero::after {
  content: '15';
  position: absolute;
  right: -3vw;
  top: 10vh;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18rem, 38vw, 38rem);
  line-height: 0.8;
  color: var(--paper-alt);
  letter-spacing: -0.08em;
  z-index: 0;
  pointer-events: none;
  user-select: none;
  mix-blend-mode: multiply;
  opacity: 0.55;
  transform: translate3d(0, var(--parallax-y, 0px), 0);
  will-change: transform;
}

.hero__container {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--s-5);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero__content { animation: riseIn 900ms var(--ease) both; }

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.95rem;
  background: var(--ink);
  color: var(--paper);
  border-radius: 999px;
  font-size: var(--fs-sm);
  font-weight: 500;
  margin-bottom: var(--s-4);
}

.hero__badge svg { color: var(--celeste-400); }

.hero__title {
  font-size: var(--fs-display);
  line-height: 0.95;
  letter-spacing: -0.035em;
  font-weight: 700;
  margin-bottom: var(--s-3);
}

.hero__title-main {
  display: block;
  color: var(--ink);
}

.hero__title-sub {
  display: inline-block;
  position: relative;
  color: var(--primary);
  font-style: italic;
  font-weight: 600;
  padding-right: 0.15em;
}

.hero__title-sub::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0.08em;
  width: 100%;
  height: 0.35em;
  background: var(--accent);
  z-index: -1;
  opacity: 0.22;
  border-radius: 2px;
  transform: skewX(-8deg);
}

.hero__subtitle {
  font-size: 1.35rem;
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--ink-800);
  margin-bottom: var(--s-3);
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.hero__subtitle::before {
  content: '';
  display: block;
  width: 36px;
  height: 2px;
  background: var(--accent);
  flex-shrink: 0;
}

.hero__description {
  color: var(--muted);
  max-width: 520px;
  margin-bottom: var(--s-5);
  font-size: 1.0625rem;
  line-height: 1.75;
}

.hero__buttons {
  display: flex;
  gap: 0.875rem;
  flex-wrap: wrap;
}

/* Hero visual — swiss composition */
.hero__visual {
  position: relative;
  height: 520px;
  animation: riseIn 900ms var(--ease) 200ms both;
}

.hero__shape {
  position: absolute;
  border-radius: var(--r-lg);
  animation: heroFloat 14s ease-in-out infinite;
  will-change: transform;
}

.hero__shape--1 {
  width: 64%;
  height: 62%;
  top: 10%;
  right: 14%;
  background: var(--ink);
  background-image: radial-gradient(circle at 1px 1px, rgba(245, 248, 252, 0.14) 1px, transparent 0);
  background-size: 18px 18px;
  box-shadow: var(--shadow-lg);
  animation-delay: 0s;
}

.hero__shape--1::before {
  content: '';
  position: absolute;
  top: 22px;
  left: 22px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 5px rgba(200, 22, 43, 0.22);
  animation: blink 2.6s ease-in-out infinite;
}

.hero__shape--1::after {
  content: '';
  position: absolute;
  right: 22px;
  bottom: 22px;
  width: 40%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent));
}

.hero__shape--2 {
  width: 52%;
  height: 13%;
  bottom: 12%;
  right: 2%;
  background: var(--accent);
  animation-delay: -4.5s;
  box-shadow: 0 18px 40px -12px rgba(200, 22, 43, 0.45);
}

.hero__shape--2::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    -45deg,
    transparent 0 10px,
    rgba(8, 19, 37, 0.12) 10px 11px
  );
  border-radius: inherit;
}

.hero__shape--3 {
  width: 30%;
  aspect-ratio: 1;
  top: 22%;
  right: 58%;
  background: var(--celeste-100);
  border: 2px solid var(--primary);
  border-radius: 50%;
  animation-delay: -9s;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
}

.hero__shape--3::before {
  content: '';
  display: block;
  width: 38%;
  height: 20%;
  border-left: 3px solid var(--primary);
  border-bottom: 3px solid var(--primary);
  transform: rotate(-45deg) translate(3px, -6px);
  margin-top: -6%;
}

@keyframes heroFloat {
  0%, 100% { transform: translate3d(0, 0, 0) rotate(0deg); }
  33%      { transform: translate3d(0, -16px, 0) rotate(-1.2deg); }
  66%      { transform: translate3d(0, 10px, 0) rotate(0.8deg); }
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.35; }
}

@keyframes riseIn {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}

/*=============== TRUST STRIP ===============*/
.trust-strip {
  padding: var(--s-4) 0;
  background: var(--paper-soft);
  border-top: 1px solid var(--paper-line);
  border-bottom: 1px solid var(--paper-line);
  position: relative;
}

.trust-strip::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--celeste) 50%, var(--accent) 100%);
}

.trust-strip__list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s-3);
  list-style: none;
  margin: 0;
  padding: 0;
}

.trust-strip__item {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 0.25rem 0;
  min-width: 0;
}

.trust-strip__item + .trust-strip__item {
  padding-left: var(--s-3);
  border-left: 1px solid var(--paper-line);
}

.trust-strip__icon {
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--ink);
  color: var(--celeste-400);
  border-radius: 12px;
  flex-shrink: 0;
  position: relative;
}

.trust-strip__icon::after {
  content: '';
  position: absolute;
  right: -3px;
  bottom: -3px;
  width: 10px;
  height: 10px;
  background: var(--accent);
  border-radius: 3px;
}

.trust-strip__text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.trust-strip__value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--ink);
  letter-spacing: -0.01em;
  line-height: 1.1;
}

.trust-strip__label {
  font-size: var(--fs-sm);
  color: var(--muted);
  line-height: 1.3;
}

@media (max-width: 768px) {
  .trust-strip__list {
    grid-template-columns: 1fr;
    gap: var(--s-2);
  }
  .trust-strip__item + .trust-strip__item {
    padding-left: 0;
    border-left: none;
    padding-top: var(--s-2);
    border-top: 1px solid var(--paper-line);
  }
}

/*=============== SERVICES OVERVIEW ===============*/
.services-overview {
  padding: var(--s-7) 0 var(--s-6);
  position: relative;
}

.services-overview .section-header {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: var(--s-4);
  max-width: 100%;
  text-align: left;
  margin: 0 0 var(--s-5);
}

.services-overview .section-header__label { grid-column: 1; }
.services-overview .section-header__label::after { display: none; }

.services-overview .section-header__title {
  grid-column: 1;
  grid-row: 2;
  margin: 0;
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  max-width: 680px;
}

.services-overview .section-header__description {
  grid-column: 2;
  grid-row: 2;
  max-width: 340px;
  margin: 0;
  padding-bottom: 0.5rem;
  text-align: left;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--paper-line);
  border: 1px solid var(--paper-line);
  border-radius: var(--r-lg);
  overflow: hidden;
  counter-reset: service;
}

.service-card {
  position: relative;
  background: var(--paper-soft);
  padding: var(--s-5) var(--s-4);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-height: 340px;
  overflow: hidden;
  counter-increment: service;
  isolation: isolate;
  transition: background var(--dur) var(--ease);
}

.service-card::before {
  content: counter(service, decimal-leading-zero);
  position: absolute;
  top: var(--s-3);
  right: var(--s-3);
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--muted-soft);
  letter-spacing: 0.18em;
  transition: color var(--dur) var(--ease);
}

.service-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--ink);
  transform: translateY(100%);
  transition: transform var(--dur-slow) var(--ease);
  z-index: -1;
}

.service-card:hover::after { transform: translateY(0); }

.service-card:hover .service-card__title,
.service-card:hover .service-card__description { color: var(--paper); }

.service-card:hover .service-card__link { color: var(--accent); }

.service-card:hover::before { color: var(--accent); }

.service-card__icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  background: transparent;
  border: 1.5px solid var(--primary);
  border-radius: var(--r-sm);
  margin-bottom: var(--s-3);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.service-card:hover .service-card__icon {
  color: var(--accent);
  border-color: var(--accent);
  transform: rotate(-4deg);
}

.service-card__title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.02em;
  margin-bottom: 0.35rem;
  transition: color var(--dur) var(--ease);
}

.service-card__description {
  color: var(--muted);
  font-size: 0.9375rem;
  line-height: 1.6;
  flex: 1;
  transition: color var(--dur) var(--ease);
}

.service-card__link {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: var(--s-2);
  letter-spacing: 0.02em;
  transition: color var(--dur) var(--ease), gap var(--dur) var(--ease);
}

.service-card:hover .service-card__link { gap: 0.65rem; }

/*=============== CTA SECTION ===============*/
.cta-section {
  padding: var(--s-6) 0 var(--s-7);
}

.cta-card {
  position: relative;
  background: var(--ink);
  color: var(--paper);
  border-radius: var(--r-lg);
  padding: var(--s-6);
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: var(--s-4);
  align-items: center;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.cta-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 6px;
  background: var(--accent);
}

.cta-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(600px 300px at 110% 0%, rgba(200, 22, 43, 0.12), transparent 60%);
  pointer-events: none;
}

.cta-card__content {
  position: relative;
  z-index: 2;
}

.cta-card__title {
  color: var(--paper);
  font-size: clamp(1.75rem, 3.6vw, 2.75rem);
  line-height: 1.08;
  margin-bottom: var(--s-3);
}

.cta-card__description {
  color: rgba(245, 248, 252, 0.75);
  margin-bottom: var(--s-4);
  font-size: 1.0625rem;
  max-width: 520px;
}

.cta-card__decoration {
  position: relative;
  height: 240px;
  z-index: 1;
}

.cta-card__shape {
  position: absolute;
  inset: 10%;
  border: 2px solid rgba(245, 248, 252, 0.12);
  border-radius: 50%;
  animation: rotateBorder 34s linear infinite;
}

.cta-card__shape::before {
  content: '';
  position: absolute;
  inset: 18%;
  border: 2px dashed rgba(200, 22, 43, 0.35);
  border-radius: 50%;
  animation: rotateBorder 22s linear infinite reverse;
}

.cta-card__shape::after {
  content: '';
  position: absolute;
  inset: 38%;
  background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
  opacity: 0.55;
  filter: blur(6px);
}

@keyframes rotateBorder {
  to { transform: rotate(360deg); }
}

/*=============== CONTACT ===============*/
.contact {
  padding: var(--s-7) 0;
  background: var(--paper-alt);
  position: relative;
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: var(--s-6);
  align-items: start;
}

.contact__info .section-header__label {
  margin-bottom: var(--s-2);
}

.contact__info .section-header__label::after { display: none; }

.contact__title {
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  line-height: 1.05;
  margin-bottom: var(--s-3);
}

.contact__description {
  color: var(--muted);
  margin-bottom: var(--s-5);
  max-width: 440px;
  font-size: 1.0625rem;
}

.contact__details {
  display: flex;
  flex-direction: column;
  margin-bottom: var(--s-4);
}

.contact__detail {
  display: flex;
  gap: 1rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--paper-line);
}

.contact__detail:first-child { border-top: 1px solid var(--paper-line); }

.contact__detail-icon {
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1.5px solid var(--ink);
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  flex-shrink: 0;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.contact__detail:hover .contact__detail-icon {
  background: var(--ink);
  color: var(--accent);
}

.contact__detail-label {
  font-size: var(--fs-micro);
  color: var(--muted);
  margin-bottom: 2px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 600;
}

.contact__detail-value {
  font-weight: 600;
  color: var(--ink);
  font-size: 1.0625rem;
  display: inline-block;
}

a.contact__detail-value { transition: color var(--dur) var(--ease); }
a.contact__detail-value:hover { color: var(--accent-600); }

.contact__detail-note {
  display: block;
  font-size: var(--fs-sm);
  color: var(--muted-soft);
  font-style: italic;
  margin-top: 2px;
}

.contact__social {
  padding-top: var(--s-3);
  border-top: 1px solid var(--paper-line);
}

.contact__social-label {
  font-size: var(--fs-micro);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: var(--s-2);
}

.contact__social-links {
  display: flex;
  gap: 0.75rem;
  margin-bottom: var(--s-2);
}

.contact__social-link {
  width: 42px;
  height: 42px;
  background: var(--paper-soft);
  border: 1px solid var(--paper-line);
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.contact__social-link:hover {
  background: var(--ink);
  color: var(--accent);
  border-color: var(--ink);
  transform: translateY(-3px);
}

.contact__social-link[aria-disabled="true"] {
  opacity: 0.45;
  pointer-events: none;
  cursor: not-allowed;
}

.contact__social-note {
  font-size: var(--fs-sm);
  color: var(--muted-soft);
  font-style: italic;
}

/*=============== CONTACT FORM ===============*/
.contact__form-wrapper {
  position: relative;
  background: var(--ink);
  padding: var(--s-5);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  isolation: isolate;
}

.contact__form-wrapper::before {
  content: '';
  position: absolute;
  inset: -1px;
  background:
    radial-gradient(500px 300px at -10% 110%, rgba(200, 22, 43, 0.12), transparent 60%),
    radial-gradient(500px 300px at 110% -10%, rgba(56, 163, 214, 0.08), transparent 60%);
  z-index: -1;
  pointer-events: none;
}

.contact__form-wrapper::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--primary-400), transparent);
}

.contact__form { position: relative; z-index: 1; }

.form-group { margin-bottom: var(--s-3); }

.form-label {
  display: block;
  margin-bottom: 0.55rem;
  font-weight: 500;
  color: rgba(245, 248, 252, 0.88);
  font-size: 0.875rem;
  letter-spacing: 0.02em;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.9rem 1rem;
  border: 1.5px solid rgba(245, 248, 252, 0.16);
  border-radius: var(--r-sm);
  font-family: var(--font-body);
  font-size: 1rem;
  background: rgba(245, 248, 252, 0.04);
  color: var(--paper);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.form-input::placeholder,
.form-textarea::placeholder { color: rgba(245, 248, 252, 0.4); }

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(245, 248, 252, 0.08);
  box-shadow: 0 0 0 3px rgba(200, 22, 43, 0.18);
}

.form-textarea { resize: vertical; min-height: 130px; }

select.form-input {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f5f8fc' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}

select.form-input option { background: var(--ink); color: var(--paper); }

.form-note {
  margin-top: var(--s-2);
  font-size: var(--fs-sm);
  color: rgba(245, 248, 252, 0.5);
  text-align: center;
}

.form-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.625rem;
  margin-top: var(--s-3);
}

.form-actions__divider {
  display: none;
}

.btn--whatsapp {
  background: #25D366;
  color: #ffffff;
  border-color: transparent;
}

.btn--whatsapp::before { background: #128c7e; }
.btn--whatsapp:hover { color: #ffffff; }

.btn--whatsapp svg {
  position: relative;
  z-index: 1;
}

.contact__form .btn--primary {
  background: var(--accent);
  color: var(--ink);
}
.contact__form .btn--primary::before { background: var(--paper); }
.contact__form .btn--primary:hover { color: var(--ink); }

@media screen and (max-width: 540px) {
  .form-actions { grid-template-columns: 1fr; }
}

/*=============== FOOTER ===============*/
.footer {
  background: var(--ink);
  color: var(--paper);
  padding: var(--s-6) 0 var(--s-3);
  position: relative;
  overflow: hidden;
}

.footer::before {
  content: 'GTR';
  position: absolute;
  bottom: -3rem;
  right: -1rem;
  font-family: var(--font-display);
  font-size: clamp(10rem, 26vw, 22rem);
  font-weight: 700;
  color: rgba(245, 248, 252, 0.035);
  line-height: 0.8;
  letter-spacing: -0.06em;
  pointer-events: none;
  user-select: none;
}

.footer .container { position: relative; z-index: 1; }

.footer__grid {
  display: grid;
  grid-template-columns: 2.2fr 1fr 1fr 1fr;
  gap: var(--s-5);
  margin-bottom: var(--s-4);
  padding-bottom: var(--s-4);
  border-bottom: 1px solid rgba(245, 248, 252, 0.08);
}

.footer__logo {
  display: inline-flex;
  align-items: center;
  margin-bottom: var(--s-3);
  transition: transform var(--dur) var(--ease);
}

.footer__logo:hover { transform: translateY(-2px); }

.footer__logo-img {
  height: 56px;
  width: auto;
  display: block;
  /* Logo has navy GTR text; on dark footer bg we lift luminosity so
     it reads clearly without needing any background plate. */
  filter: brightness(1.55) saturate(1.1);
}

.footer__description {
  color: rgba(245, 248, 252, 0.62);
  line-height: 1.7;
  max-width: 320px;
}

.footer__title {
  color: var(--paper);
  margin-bottom: var(--s-3);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-family: var(--font-body);
}

.footer__list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer__list li,
.footer__list a {
  color: rgba(245, 248, 252, 0.68);
  font-size: 0.9375rem;
}

.footer__list a {
  display: inline-block;
  transition: color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.footer__list a:hover {
  color: var(--accent);
  transform: translateX(4px);
}

.footer__bottom { text-align: center; padding-top: var(--s-2); }

.footer__copyright {
  color: rgba(245, 248, 252, 0.42);
  font-size: var(--fs-sm);
}

/*=============== WHATSAPP FLOAT ===============*/
.whatsapp-float {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 60px;
  height: 60px;
  background: #25D366;
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 30px rgba(37, 211, 102, 0.35);
  z-index: 999;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.whatsapp-float::before {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  background: #25D366;
  opacity: 0.35;
  animation: waPulse 2.4s ease-in-out infinite;
  z-index: -1;
}

.whatsapp-float:hover {
  transform: scale(1.08) rotate(-4deg);
  box-shadow: 0 14px 40px rgba(37, 211, 102, 0.5);
}

@keyframes waPulse {
  0%, 100% { transform: scale(1);   opacity: 0.35; }
  50%      { transform: scale(1.35); opacity: 0; }
}

/*=============== CROSS-LINK CARD ===============*/
.cross-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-2);
  margin-top: var(--s-3);
  padding: var(--s-3);
  background: var(--paper-alt);
  border: 1px solid var(--paper-line);
  border-left: 4px solid var(--celeste);
  border-radius: var(--r-md);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
  text-decoration: none;
}

.cross-link:hover {
  border-left-color: var(--accent);
  transform: translateX(3px);
}

.cross-link__text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.cross-link__label {
  font-size: var(--fs-micro);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--primary);
}

.cross-link__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--ink);
}

.cross-link__arrow {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--ink);
  color: var(--paper);
  border-radius: 50%;
  transition: background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.cross-link:hover .cross-link__arrow {
  background: var(--accent);
  transform: translateX(3px);
}

/*=============== BACK TO TOP ===============*/
.back-to-top {
  position: fixed;
  right: 1.5rem;
  bottom: calc(1.5rem + 60px + 0.875rem);
  width: 48px;
  height: 48px;
  background: var(--primary);
  color: var(--paper);
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 10px 24px -8px rgba(29, 61, 122, 0.5);
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transform: translateY(14px);
  transition:
    opacity var(--dur) var(--ease),
    visibility var(--dur) var(--ease),
    transform var(--dur) var(--ease),
    background var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 14px 28px -8px rgba(200, 22, 43, 0.55);
}

.back-to-top:active {
  transform: translateY(-1px);
}

.back-to-top svg {
  transition: transform var(--dur) var(--ease);
}

.back-to-top:hover svg {
  transform: translateY(-2px);
}

/*=============== TOAST NOTIFICATION ===============*/
.toast {
  position: fixed;
  left: 50%;
  bottom: 1.5rem;
  transform: translate(-50%, 120%);
  min-width: 280px;
  max-width: calc(100vw - 2rem);
  padding: 0.95rem 1.25rem;
  background: var(--ink);
  color: var(--paper);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  z-index: 2000;
  opacity: 0;
  pointer-events: none;
  border-left: 4px solid var(--accent);
  transition:
    opacity var(--dur) var(--ease),
    transform var(--dur) var(--ease);
}

.toast.visible {
  opacity: 1;
  transform: translate(-50%, 0);
  pointer-events: auto;
}

.toast__icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  color: var(--accent);
}

.toast__text {
  font-size: 0.9375rem;
  line-height: 1.45;
}

@media (max-width: 540px) {
  .toast {
    left: 1rem;
    right: 1rem;
    bottom: 1rem;
    transform: translateY(120%);
    min-width: 0;
    max-width: none;
  }
  .toast.visible { transform: translateY(0); }
}

/*=============== 404 PAGE ===============*/
.error-hero {
  min-height: calc(100svh - 200px);
  min-height: calc(100vh - 200px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 9rem 0 var(--s-6);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.error-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--paper-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--paper-line) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: 0.35;
  -webkit-mask-image: radial-gradient(ellipse 60% 50% at 50% 50%, black 20%, transparent 75%);
          mask-image: radial-gradient(ellipse 60% 50% at 50% 50%, black 20%, transparent 75%);
  pointer-events: none;
}

.error-hero__code {
  font-family: var(--font-display);
  font-size: clamp(8rem, 22vw, 18rem);
  font-weight: 700;
  line-height: 0.85;
  letter-spacing: -0.05em;
  color: var(--ink);
  margin-bottom: var(--s-3);
  position: relative;
  display: inline-block;
}

.error-hero__code::after {
  content: '';
  position: absolute;
  right: -12px;
  bottom: 18%;
  width: 28px;
  height: 28px;
  background: var(--accent);
  border-radius: 6px;
  box-shadow: 0 0 0 6px rgba(200, 22, 43, 0.18);
  animation: blink 2.6s ease-in-out infinite;
}

.error-hero__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: var(--s-2);
  color: var(--ink);
}

.error-hero__description {
  max-width: 480px;
  margin: 0 auto var(--s-4);
  color: var(--muted);
  font-size: 1.0625rem;
  line-height: 1.6;
}

.error-hero__actions {
  display: inline-flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
}

@media (max-width: 540px) {
  .error-hero__actions { flex-direction: column; width: 100%; max-width: 320px; }
  .error-hero__actions .btn { width: 100%; }
}

/*=============== REVEAL ON SCROLL ===============*/
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 850ms var(--ease), transform 850ms var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal[data-delay="1"] { transition-delay: 80ms; }
.reveal[data-delay="2"] { transition-delay: 160ms; }
.reveal[data-delay="3"] { transition-delay: 240ms; }
.reveal[data-delay="4"] { transition-delay: 320ms; }
.reveal[data-delay="5"] { transition-delay: 400ms; }

/*=============== RESPONSIVE ===============*/
@media screen and (max-width: 1080px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
}

@media screen and (max-width: 992px) {
  .hero::after { font-size: clamp(14rem, 45vw, 28rem); opacity: 0.4; }

  .hero__container,
  .contact__grid {
    grid-template-columns: 1fr;
  }

  .hero__visual {
    height: 340px;
    order: -1;
    margin-bottom: var(--s-3);
  }

  .cta-card {
    grid-template-columns: 1fr;
    padding: var(--s-5);
  }

  .cta-card__decoration {
    height: 140px;
    max-width: 200px;
    margin-left: auto;
    margin-right: auto;
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--s-4);
  }

  .footer__grid > :first-child {
    grid-column: 1 / -1;
  }

  .services-overview .section-header {
    grid-template-columns: 1fr;
  }
  .services-overview .section-header__description {
    grid-column: 1;
    grid-row: 3;
    max-width: 100%;
    padding-bottom: 0;
  }
}

@media screen and (max-width: 768px) {
  :root {
    --fs-display: clamp(2.5rem, 11vw, 4rem);
  }

  .nav__menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 85%;
    max-width: 400px;
    height: 100vh;
    background: var(--paper);
    padding: 5rem 2rem 2rem;
    box-shadow: var(--shadow-lg);
    transition: right var(--dur) var(--ease);
    overflow-y: auto;
    flex-direction: column;
    align-items: flex-start;
  }

  .nav__menu.show { right: 0; }

  .nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
    width: 100%;
  }

  .nav__link { font-size: 1.15rem; }

  .nav__toggle,
  .nav__close { display: block; }

  .nav__close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
  }

  .hero {
    padding: 7rem 0 3rem;
  }

  .hero__visual { height: 320px; }

  .hero__buttons { flex-direction: column; }
  .hero__buttons .btn { width: 100%; }

  .services-grid { grid-template-columns: 1fr; }
  .service-card { min-height: 260px; padding: var(--s-4); }

  .whatsapp-float {
    bottom: 1rem;
    right: 1rem;
    width: 54px;
    height: 54px;
  }

  .back-to-top {
    right: 1rem;
    bottom: calc(1rem + 54px + 0.75rem);
    width: 44px;
    height: 44px;
  }

  .contact__form-wrapper { padding: var(--s-4); }

  .footer__grid { grid-template-columns: 1fr 1fr; gap: var(--s-3); }
}

@media screen and (max-width: 480px) {
  .container { padding: 0 1rem; }
  .nav__logo-img,
  .footer__logo-img { height: 44px; }

  .hero::after { top: 6vh; font-size: 14rem; right: -8vw; }
  .hero::before { background-size: 48px 48px; }

  .cta-card { padding: var(--s-4); }
  .cta-card__decoration { display: none; }

  .footer__grid {
    grid-template-columns: 1fr;
    text-align: left;
  }
  .footer__grid > :first-child { grid-column: 1; }

  .back-to-top,
  .whatsapp-float {
    box-shadow: 0 6px 16px -4px rgba(8, 19, 37, 0.4);
  }
}

/* Reduce decorative motion on small/touch-only devices */
@media (hover: none) and (pointer: coarse) {
  .hero__shape { animation-duration: 20s; }
  .cta-card__shape,
  .cta-card__shape::before { animation-duration: 45s; }
  .whatsapp-float::before { animation-duration: 3.2s; }
}

/*=============== PREFERS-REDUCED-MOTION ===============*/
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .hero__content,
  .hero__visual { animation: none; opacity: 1; }
}