/* =========================================================
   DydSo Landing Page — styles.css
   Mobile-first, sin frameworks externos
   ========================================================= */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Plus+Jakarta+Sans:wght@400;600;700;800&display=swap');

/* --- Variables globales --- */
:root {
  --color-bg:        #0f172a;
  --color-surface:   #1e293b;
  --color-surface2:  #263348;
  --color-accent:    #2563eb;
  --color-accent-h:  #1d4ed8;
  --color-accent-lt: #3b82f6;
  --color-text:      #f1f5f9;
  --color-muted:     #94a3b8;
  --color-border:    #334155;
  --color-white:     #ffffff;

  --font-body:    'Inter', sans-serif;
  --font-heading: 'Plus Jakarta Sans', sans-serif;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --shadow-card: 0 4px 24px rgba(0,0,0,.35);
  --shadow-glow: 0 0 40px rgba(37,99,235,.25);

  --transition: .3s ease;
  --max-w: 1140px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a  { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* --- Utilidades --- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: 20px;
}

.section { padding: 80px 0; }
.section--alt { background: var(--color-surface); }

.tag {
  display: inline-block;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--color-accent-lt);
  background: rgba(37,99,235,.12);
  border: 1px solid rgba(59,130,246,.25);
  padding: 4px 14px;
  border-radius: 99px;
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-white);
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--color-muted);
  max-width: 560px;
}

/* --- Animaciones de scroll --- */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity .65s ease, transform .65s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: .1s; }
.reveal-delay-2 { transition-delay: .2s; }
.reveal-delay-3 { transition-delay: .3s; }
.reveal-delay-4 { transition-delay: .4s; }
.reveal-delay-5 { transition-delay: .5s; }
.reveal-delay-6 { transition-delay: .6s; }

/* =========================================================
   HEADER / NAV
   ========================================================= */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 18px 0;
  transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
}

.header.scrolled {
  background: rgba(15,23,42,.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--color-border);
  padding: 12px 0;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav__logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -.02em;
}

.nav__logo span { color: var(--color-accent-lt); }

.nav__links {
  display: none;
  gap: 8px;
  align-items: center;
}

.nav__links a {
  font-size: .9rem;
  font-weight: 500;
  color: var(--color-muted);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}

.nav__links a:hover {
  color: var(--color-white);
  background: rgba(255,255,255,.06);
}

.nav__cta {
  font-size: .875rem;
  font-weight: 600;
  color: var(--color-white) !important;
  background: var(--color-accent) !important;
  padding: 9px 22px !important;
  border-radius: var(--radius-sm) !important;
  transition: background var(--transition) !important;
}
.nav__cta:hover { background: var(--color-accent-h) !important; }

.nav__burger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.nav__burger span {
  display: block;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: var(--transition);
}
.nav__burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger.open span:nth-child(2) { opacity: 0; }
.nav__burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.nav__mobile {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(15,23,42,.97);
  backdrop-filter: blur(18px);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
}
.nav__mobile.open { display: flex; }
.nav__mobile a {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-muted);
  transition: color var(--transition);
}
.nav__mobile a:hover { color: var(--color-white); }
.nav__mobile .close-btn {
  position: absolute;
  top: 22px; right: 22px;
  background: none;
  border: none;
  color: var(--color-muted);
  font-size: 2rem;
  cursor: pointer;
  line-height: 1;
}

/* Desktop nav */
@media (min-width: 768px) {
  .nav__links { display: flex; }
  .nav__burger { display: none; }
}

/* =========================================================
   HERO
   ========================================================= */
.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  position: relative;
  overflow: hidden;
}

/* Fondo con gradiente y puntos */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(37,99,235,.28) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 80% 80%,  rgba(37,99,235,.12) 0%, transparent 55%);
  pointer-events: none;
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(37,99,235,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37,99,235,.06) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 40%, black 30%, transparent 100%);
  mask-image: radial-gradient(ellipse 90% 70% at 50% 40%, black 30%, transparent 100%);
}

.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 780px;
  margin-inline: auto;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--color-accent-lt);
  background: rgba(37,99,235,.1);
  border: 1px solid rgba(59,130,246,.2);
  padding: 6px 18px;
  border-radius: 99px;
  margin-bottom: 28px;
}
.hero__eyebrow::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-accent-lt);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: .5; transform: scale(1.4); }
}

.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -.02em;
  color: var(--color-white);
  margin-bottom: 24px;
}

.hero__title .highlight {
  color: transparent;
  background: linear-gradient(135deg, #60a5fa, #2563eb);
  -webkit-background-clip: text;
  background-clip: text;
}

.hero__subtitle {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  color: var(--color-muted);
  max-width: 560px;
  margin-inline: auto;
  margin-bottom: 40px;
  line-height: 1.75;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}

/* Botones */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: .95rem;
  font-weight: 600;
  padding: 13px 28px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-white);
  box-shadow: 0 4px 20px rgba(37,99,235,.4);
}
.btn--primary:hover {
  background: var(--color-accent-h);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(37,99,235,.5);
}

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn--outline:hover {
  border-color: var(--color-accent-lt);
  color: var(--color-accent-lt);
  transform: translateY(-2px);
}

.hero__stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 32px;
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid var(--color-border);
}

.hero__stat-num {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-white);
}
.hero__stat-num span { color: var(--color-accent-lt); }
.hero__stat-label {
  font-size: .8rem;
  color: var(--color-muted);
  margin-top: 2px;
}

/* =========================================================
   SERVICIOS
   ========================================================= */
.services__header {
  text-align: center;
  margin-bottom: 56px;
}
.services__header .section-subtitle { margin-inline: auto; }

.services__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 540px)  { .services__grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 900px)  { .services__grid { grid-template-columns: repeat(3, 1fr); } }

.service-card {
  background: var(--color-surface2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(37,99,235,.07) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(59,130,246,.4);
  box-shadow: var(--shadow-glow);
}
.service-card:hover::after { opacity: 1; }

.service-card__icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-md);
  background: rgba(37,99,235,.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.5rem;
  transition: background var(--transition);
}
.service-card:hover .service-card__icon { background: rgba(37,99,235,.3); }

.service-card__title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 10px;
}

.service-card__desc {
  font-size: .9rem;
  color: var(--color-muted);
  line-height: 1.7;
}

/* =========================================================
   SOBRE NOSOTROS
   ========================================================= */
.about__inner {
  display: grid;
  gap: 56px;
  align-items: center;
}

@media (min-width: 900px) {
  .about__inner { grid-template-columns: 1fr 1fr; }
}

.about__text .section-subtitle { max-width: 100%; margin-bottom: 32px; }

.about__features {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.about__feature {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.about__feature-icon {
  flex-shrink: 0;
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(37,99,235,.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  margin-top: 2px;
}

.about__feature-title {
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 4px;
}

.about__feature-desc { font-size: .9rem; color: var(--color-muted); }

.about__card {
  background: var(--color-surface2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  position: relative;
  overflow: hidden;
}

.about__card::before {
  content: '';
  position: absolute;
  top: -60px; right: -60px;
  width: 200px; height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(37,99,235,.2), transparent 70%);
  pointer-events: none;
}

.about__card-label {
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--color-accent-lt);
  margin-bottom: 8px;
}

.about__card-title {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 16px;
}

.about__card-text { font-size: .9rem; color: var(--color-muted); line-height: 1.8; margin-bottom: 24px; }

.about__pillars {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.about__pillar {
  background: rgba(37,99,235,.1);
  border: 1px solid rgba(59,130,246,.15);
  border-radius: var(--radius-sm);
  padding: 14px;
  font-size: .85rem;
  font-weight: 600;
  color: var(--color-accent-lt);
  text-align: center;
}

/* =========================================================
   CONTACTO
   ========================================================= */
.contact__inner {
  display: grid;
  gap: 56px;
}

@media (min-width: 900px) {
  .contact__inner { grid-template-columns: 1fr 1fr; align-items: start; }
}

/* Formulario */
.contact__form-wrap {
  background: var(--color-surface2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: .85rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: .9rem;
  color: var(--color-text);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--color-muted); }

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(37,99,235,.2);
}

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

.form-privacy {
  font-size: .78rem;
  color: var(--color-muted);
  margin-bottom: 20px;
  line-height: 1.6;
}

.form-privacy a {
  color: var(--color-accent-lt);
  text-decoration: underline;
}

.form__success {
  display: none;
  background: rgba(22,163,74,.1);
  border: 1px solid rgba(22,163,74,.3);
  border-radius: var(--radius-sm);
  padding: 16px;
  color: #4ade80;
  font-size: .9rem;
  text-align: center;
  margin-top: 16px;
}

/* Info contacto */
.contact__info-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 8px;
}

.contact__info-sub {
  font-size: .95rem;
  color: var(--color-muted);
  margin-bottom: 32px;
  line-height: 1.7;
}

.contact__items {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 32px;
}

.contact__item {
  display: flex;
  gap: 16px;
  align-items: center;
}

.contact__item-icon {
  width: 44px; height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(37,99,235,.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact__item-label {
  font-size: .75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--color-muted);
  margin-bottom: 2px;
}

.contact__item-value {
  font-size: .95rem;
  font-weight: 500;
  color: var(--color-text);
}

.contact__item-value a {
  color: var(--color-text);
  transition: color var(--transition);
}
.contact__item-value a:hover { color: var(--color-accent-lt); }

.contact__hours {
  background: var(--color-surface2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px 24px;
}

.contact__hours-title {
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 10px;
  font-size: .95rem;
}

.contact__hours-row {
  display: flex;
  justify-content: space-between;
  font-size: .85rem;
  color: var(--color-muted);
  padding: 5px 0;
  border-bottom: 1px solid var(--color-border);
}
.contact__hours-row:last-child { border-bottom: none; }
.contact__hours-row span:last-child { color: var(--color-accent-lt); font-weight: 500; }

/* =========================================================
   LEGAL (modales)
   ========================================================= */
.legal-section {
  padding: 64px 0;
  background: var(--color-surface);
}

.legal-cards {
  display: grid;
  gap: 20px;
}

@media (min-width: 640px) { .legal-cards { grid-template-columns: 1fr 1fr; } }

.legal-card {
  background: var(--color-surface2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  cursor: pointer;
  transition: border-color var(--transition), transform var(--transition);
}
.legal-card:hover {
  border-color: rgba(59,130,246,.4);
  transform: translateY(-3px);
}

.legal-card__icon { font-size: 2rem; margin-bottom: 16px; }

.legal-card__title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 8px;
}

.legal-card__desc { font-size: .88rem; color: var(--color-muted); margin-bottom: 16px; }

.legal-card__btn {
  font-size: .82rem;
  font-weight: 600;
  color: var(--color-accent-lt);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* --- Modal --- */
.modal-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.7);
  backdrop-filter: blur(6px);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-backdrop.open { display: flex; }

.modal {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 720px;
  max-height: 85vh;
  overflow-y: auto;
  position: relative;
  animation: modalIn .25s ease;
}

@keyframes modalIn {
  from { opacity: 0; transform: translateY(24px) scale(.97); }
  to   { opacity: 1; transform: translateY(0)   scale(1);    }
}

.modal__header {
  position: sticky;
  top: 0;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 24px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 1;
}

.modal__title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-white);
}

.modal__close {
  background: none;
  border: none;
  color: var(--color-muted);
  font-size: 1.5rem;
  cursor: pointer;
  line-height: 1;
  padding: 4px;
  transition: color var(--transition);
}
.modal__close:hover { color: var(--color-white); }

.modal__body { padding: 28px; }

.modal__body h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-accent-lt);
  margin: 24px 0 10px;
  text-transform: uppercase;
  letter-spacing: .06em;
  font-size: .8rem;
}
.modal__body h3:first-child { margin-top: 0; }

.modal__body p {
  font-size: .88rem;
  color: var(--color-muted);
  line-height: 1.8;
  margin-bottom: 12px;
}

.modal__body ul {
  list-style: disc;
  padding-left: 20px;
  margin-bottom: 12px;
}

.modal__body ul li {
  font-size: .88rem;
  color: var(--color-muted);
  line-height: 1.8;
}

.modal__footer {
  padding: 20px 28px;
  border-top: 1px solid var(--color-border);
  text-align: right;
}

/* =========================================================
   FOOTER
   ========================================================= */
.footer {
  background: #080e1a;
  border-top: 1px solid var(--color-border);
  padding: 48px 0 28px;
}

.footer__inner {
  display: grid;
  gap: 40px;
}

@media (min-width: 768px) {
  .footer__inner { grid-template-columns: 1.5fr 1fr 1fr; }
}

.footer__brand-logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 12px;
}
.footer__brand-logo span { color: var(--color-accent-lt); }

.footer__brand-desc {
  font-size: .88rem;
  color: var(--color-muted);
  line-height: 1.8;
  margin-bottom: 20px;
  max-width: 300px;
}

.footer__col-title {
  font-family: var(--font-heading);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 16px;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer__links a {
  font-size: .88rem;
  color: var(--color-muted);
  transition: color var(--transition);
}
.footer__links a:hover { color: var(--color-accent-lt); }

.footer__contact-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .88rem;
  color: var(--color-muted);
  margin-bottom: 10px;
}
.footer__contact-row a { color: var(--color-muted); transition: color var(--transition); }
.footer__contact-row a:hover { color: var(--color-accent-lt); }

.footer__bottom {
  border-top: 1px solid var(--color-border);
  margin-top: 40px;
  padding-top: 24px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: .8rem;
  color: var(--color-muted);
}

.footer__bottom-links {
  display: flex;
  gap: 20px;
}
.footer__bottom-links button {
  background: none;
  border: none;
  color: var(--color-muted);
  cursor: pointer;
  font-size: .8rem;
  font-family: var(--font-body);
  transition: color var(--transition);
}
.footer__bottom-links button:hover { color: var(--color-accent-lt); }

/* =========================================================
   SCROLLBAR
   ========================================================= */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-accent); }

/* =========================================================
   RESPONSIVE tweaks
   ========================================================= */
@media (max-width: 540px) {
  .section { padding: 60px 0; }
  .about__pillars { grid-template-columns: 1fr; }
  .contact__form-wrap { padding: 24px 20px; }
  .modal__body { padding: 20px; }
}