/* =========================================================
   Dr. en Der. Penal Ricardo Avilés Mendoza
   Sitio estático listo para Cloudflare Pages
   ========================================================= */

:root {
  --graphite: #25282b;
  --graphite-deep: #1b1d1f;
  --graphite-soft: #34383c;
  --silver: #b8b8b2;
  --ivory: #f1ede3;
  --paper: #ece9e2;
  --paper-deep: #dedbd4;
  --ink: #292b2e;
  --muted: #676b6e;
  --line: rgba(241, 237, 227, 0.36);
  --line-dark: rgba(37, 40, 43, 0.20);
  --shadow: 0 20px 50px rgba(18, 20, 22, 0.12);
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

body.menu-open {
  overflow: hidden;
}

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

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

.skip-link {
  position: fixed;
  left: 16px;
  top: -60px;
  z-index: 9999;
  padding: 10px 14px;
  background: var(--ivory);
  color: var(--graphite);
  text-decoration: none;
  border-radius: 6px;
}

.skip-link:focus {
  top: 16px;
}

.container {
  width: min(calc(100% - 40px), var(--max-width));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1000;
  background: rgba(27, 29, 31, 0.82);
  border-bottom: 1px solid rgba(241, 237, 227, 0.10);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.site-header.scrolled {
  background: rgba(27, 29, 31, 0.96);
  box-shadow: 0 10px 35px rgba(0, 0, 0, 0.16);
}

.header-inner {
  width: min(calc(100% - 40px), var(--max-width));
  min-height: 82px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  color: var(--ivory);
  text-decoration: none;
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-kicker {
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--silver);
  margin-bottom: 5px;
}

.brand strong {
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.main-nav a {
  position: relative;
  color: var(--ivory);
  text-decoration: none;
  font-size: 0.94rem;
  letter-spacing: 0.06em;
  padding: 8px 0;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 2px;
  width: 0;
  height: 1px;
  background: var(--ivory);
  transition: width 0.25s ease;
}

.main-nav a:hover::after,
.main-nav a:focus-visible::after {
  width: 100%;
}

.menu-toggle {
  display: none;
  width: 46px;
  height: 42px;
  border: 1px solid rgba(241, 237, 227, 0.20);
  background: transparent;
  border-radius: 6px;
  padding: 10px;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 1px;
  background: var(--ivory);
  margin: 5px 0;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

/* Shared */
.section-dark {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 14% 24%, rgba(255,255,255,0.06), transparent 28%),
    linear-gradient(145deg, var(--graphite-soft) 0%, var(--graphite) 45%, var(--graphite-deep) 100%);
  color: var(--ivory);
}

.eyebrow {
  margin: 0 0 12px;
  font-size: 0.76rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--silver);
}

.eyebrow.dark {
  color: #676b6e;
}

.rule {
  width: 76px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--ivory), transparent);
  margin: 24px auto;
}

.rule-dark {
  background: linear-gradient(90deg, transparent, var(--ink), transparent);
}

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

.reveal.visible {
  animation: revealIn 0.72s ease both;
}

@keyframes revealIn {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Hero */
.hero {
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: 132px 20px 88px;
  text-align: center;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.35;
  background-image:
    linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px);
  background-size: 28px 28px;
}

.hero-inner {
  position: relative;
  z-index: 2;
  width: min(100%, 900px);
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.45rem, 7vw, 5.7rem);
  line-height: 0.98;
  font-weight: 500;
  letter-spacing: -0.025em;
  text-wrap: balance;
}

.hero-services {
  display: grid;
  gap: 5px;
  justify-items: center;
  margin-top: 30px;
  color: #ece8de;
  font-size: clamp(1rem, 2vw, 1.22rem);
  letter-spacing: 0.025em;
}

.hero-actions {
  margin-top: 34px;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: 6px;
  text-decoration: none;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  transition: transform 0.25s ease, background 0.25s ease, border-color 0.25s ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--ivory);
  color: var(--graphite-deep);
  border-color: var(--ivory);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: #fff;
}

.btn-ghost {
  color: var(--ivory);
  border-color: rgba(241, 237, 227, 0.36);
  background: rgba(255,255,255,0.02);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  border-color: var(--ivory);
  background: rgba(255,255,255,0.06);
}

.decor {
  position: absolute;
  width: 340px;
  height: 340px;
  border: 1px solid rgba(241, 237, 227, 0.09);
  border-radius: 50%;
}

.decor-one {
  top: -170px;
  right: -100px;
}

.decor-two {
  bottom: -210px;
  left: -120px;
  width: 440px;
  height: 440px;
}

.scroll-indicator {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 34px;
  background: rgba(241, 237, 227, 0.22);
}

.scroll-indicator span {
  display: block;
  width: 1px;
  height: 10px;
  background: var(--ivory);
  animation: scrollPulse 1.7s infinite ease-in-out;
}

@keyframes scrollPulse {
  0% { transform: translateY(0); opacity: 0; }
  30% { opacity: 1; }
  100% { transform: translateY(24px); opacity: 0; }
}

/* Services */
.services-section {
  padding: 105px 0 118px;
  background:
    linear-gradient(rgba(37,40,43,.03) 1px, transparent 1px),
    var(--paper);
  background-size: 100% 36px;
}

.section-heading {
  max-width: 730px;
  margin: 0 auto 56px;
  text-align: center;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(2.05rem, 4vw, 3.5rem);
  line-height: 1.08;
  font-weight: 500;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.service-card {
  position: relative;
  min-height: 220px;
  padding: 28px;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  background: rgba(255,255,255,0.36);
  border: 1px solid rgba(37,40,43,0.16);
  box-shadow: 0 10px 24px rgba(37,40,43,0.05);
  transition: transform 0.28s ease, box-shadow 0.28s ease, background 0.28s ease;
}

.service-card::before {
  content: "";
  position: absolute;
  inset: auto -30px -40px auto;
  width: 150px;
  height: 150px;
  border: 1px solid rgba(37,40,43,0.08);
  border-radius: 50%;
}

.service-card:hover {
  transform: translateY(-7px);
  box-shadow: var(--shadow);
  background: rgba(255,255,255,0.57);
}

.service-number {
  position: absolute;
  top: 22px;
  left: 26px;
  color: #7d7f80;
  font-size: 0.75rem;
  letter-spacing: 0.20em;
}

.service-card h3 {
  position: relative;
  z-index: 1;
  margin: 0;
  font-size: clamp(1.25rem, 2.1vw, 1.75rem);
  line-height: 1.24;
  font-weight: 500;
  max-width: 90%;
}

.service-card-wide {
  grid-column: 2 / span 2;
}

/* Contact */
.contact-section {
  padding: 112px 0;
}

.contact-layout {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 70px;
  align-items: start;
}

.contact-intro {
  position: sticky;
  top: 126px;
}

.contact-intro h2 {
  margin: 0;
  font-size: clamp(2.05rem, 4vw, 3.3rem);
  line-height: 1.12;
  font-weight: 500;
}

.contact-intro .rule {
  margin-left: 0;
}


.contact-panels {
  display: grid;
  gap: 16px;
}

.contact-card {
  padding: 30px 32px;
  background: rgba(255,255,255,0.045);
  border: 1px solid rgba(241, 237, 227, 0.15);
  box-shadow: 0 12px 26px rgba(0,0,0,.07);
}

.contact-label {
  display: block;
  margin-bottom: 12px;
  color: var(--silver);
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.phone-list {
  display: grid;
  gap: 6px;
}

.phone-list a,
.mail-link {
  width: fit-content;
  max-width: 100%;
  color: var(--ivory);
  text-decoration: none;
  font-size: clamp(1.2rem, 3vw, 1.72rem);
  line-height: 1.2;
  overflow-wrap: anywhere;
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s ease;
}

.phone-list a:hover,
.phone-list a:focus-visible,
.mail-link:hover,
.mail-link:focus-visible {
  border-color: var(--ivory);
}

.contact-card address {
  color: #e7e2d7;
  font-style: normal;
  font-size: 1.08rem;
}

/* Quick contact */
.quick-contact {
  padding: 42px 0;
  background: var(--paper-deep);
  border-top: 1px solid rgba(37,40,43,0.12);
  border-bottom: 1px solid rgba(37,40,43,0.12);
}

.quick-contact-inner {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  align-items: center;
  gap: 28px;
}

.quick-contact p {
  margin: 0 0 3px;
  color: var(--muted);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

.quick-contact strong {
  font-size: 1.24rem;
  font-weight: 600;
}

.quick-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px 18px;
}

.quick-links a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid rgba(37,40,43,.24);
  overflow-wrap: anywhere;
}

/* Footer */
.site-footer {
  background: var(--graphite-deep);
  color: var(--ivory);
  padding: 58px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 36px;
}

.footer-kicker {
  margin: 0 0 4px;
  color: var(--silver);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.17em;
}

.footer-grid strong {
  font-size: 1.16rem;
}

.footer-contact {
  display: grid;
  gap: 6px;
}

.footer-contact a {
  color: #ddd8cf;
  text-decoration: none;
  overflow-wrap: anywhere;
}

.footer-grid address {
  color: #c7c2b8;
  font-style: normal;
}

.footer-bottom {
  margin-top: 46px;
  padding: 18px 20px;
  text-align: center;
  color: #9f9b93;
  border-top: 1px solid rgba(241,237,227,.08);
  font-size: 0.82rem;
}

/* Back to top */
.back-to-top {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 900;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(241,237,227,.18);
  border-radius: 50%;
  background: rgba(27,29,31,.92);
  color: var(--ivory);
  font-size: 1.2rem;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity .25s ease, transform .25s ease;
}

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

/* Focus */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--ivory);
  outline-offset: 4px;
}

/* Responsive */
@media (max-width: 920px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .service-card-wide {
    grid-column: auto;
  }

  .contact-layout {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .contact-intro {
    position: static;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-grid address {
    grid-column: 1 / -1;
  }
}

@media (max-width: 760px) {
  .header-inner {
    min-height: 72px;
  }

  .menu-toggle {
    display: block;
    position: relative;
    z-index: 1002;
  }

  .main-nav {
    position: fixed;
    inset: 0;
    z-index: 1001;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 24px;
    background: rgba(27,29,31,.985);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform .3s ease, opacity .3s ease, visibility .3s ease;
  }

  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .main-nav a {
    font-size: 1.35rem;
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  .hero {
    padding-top: 116px;
  }

  .hero-services {
    font-size: 1rem;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .service-card {
    min-height: 175px;
  }

  .quick-contact-inner {
    grid-template-columns: 1fr;
  }

  .quick-links {
    justify-content: flex-start;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid address {
    grid-column: auto;
  }
}

@media (max-width: 480px) {
  .container,
  .header-inner {
    width: min(calc(100% - 28px), var(--max-width));
  }

  .brand-kicker {
    font-size: 0.66rem;
  }

  .brand strong {
    font-size: 0.98rem;
  }

  .hero {
    min-height: 100svh;
    padding-left: 14px;
    padding-right: 14px;
  }

  .hero h1 {
    font-size: clamp(2.3rem, 13vw, 3.6rem);
  }

  .hero-actions {
    width: 100%;
  }

  .btn {
    width: 100%;
  }

  .services-section,
  .contact-section {
    padding: 82px 0;
  }

  .service-card {
    padding: 24px;
  }

  .contact-card {
    padding: 24px 20px;
  }

  .phone-list a,
  .mail-link {
    font-size: 1.15rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }

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