/* ══════════════════════════════════════════════
   DOC DIANA SÁNCHEZ — Main Stylesheet
   Dark theme · Turquoise & White accents
   ══════════════════════════════════════════════ */

/* ── Variables ── */
:root {
  --bg:          #0a0a0a;
  --bg-2:        #111111;
  --bg-3:        #181818;
  --bg-card:     #141414;
  --red:         #c0392b;
  --red-light:   #e74c3c;
  --red-dark:    #922b21;
  --white:       #ffffff;
  --off-white:   #f0f0f0;
  --muted:       #9a9a9a;
  --border:      rgba(255,255,255,0.07);
  --border-red:  rgba(192,57,43,0.35);
  --font-serif:  'Playfair Display', Georgia, serif;
  --font-sans:   'Inter', system-ui, sans-serif;
  --radius:      10px;
  --radius-lg:   18px;
  --shadow:      0 4px 32px rgba(0,0,0,0.5);
  --shadow-red:  0 4px 24px rgba(192,57,43,0.25);
  --transition:  0.28s cubic-bezier(0.4,0,0.2,1);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--bg);
  color: var(--off-white);
  font-family: var(--font-sans);
  font-weight: 400;
  line-height: 1.7;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }
input, select, textarea { font: inherit; }

/* ── Utilities ── */
.container {
  width: 100%;
  max-width: 1160px;
  margin-inline: auto;
  padding-inline: 24px;
}
.text-red  { color: var(--red-light); }
.section   { padding-block: 96px; }
.section__label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section__title {
  font-family: var(--font-serif);
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--white);
  margin-bottom: 20px;
}
.section__desc {
  color: var(--muted);
  max-width: 540px;
}
.section__header {
  text-align: center;
  margin-bottom: 60px;
}
.section__header .section__desc { margin-inline: auto; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: var(--radius);
  font-size: 0.925rem;
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
}
.btn--primary {
  background: var(--red);
  color: var(--white);
  box-shadow: var(--shadow-red);
}
.btn--primary:hover, .btn--primary:focus-visible {
  background: var(--red-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(192,57,43,0.4);
}
.btn--ghost {
  background: transparent;
  color: var(--off-white);
  border: 1.5px solid var(--border);
}
.btn--ghost:hover, .btn--ghost:focus-visible {
  border-color: var(--red-light);
  color: var(--red-light);
  background: rgba(192,57,43,0.07);
}
.btn--full { width: 100%; }

/* ══════════════════════════════════════════════
   NAVBAR
   ══════════════════════════════════════════════ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding-block: 18px;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
}
.navbar.scrolled {
  background: rgba(10,10,10,0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--border);
  padding-block: 12px;
}
.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.navbar__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 1rem;
  color: var(--white);
  transition: opacity var(--transition);
}
.navbar__logo:hover { opacity: 0.8; }
.logo-cross {
  font-size: 1.3rem;
  color: var(--red-light);
  line-height: 1;
}
.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted);
  transition: var(--transition);
}
.nav-link:hover, .nav-link:focus-visible {
  color: var(--white);
  background: rgba(255,255,255,0.05);
}
.nav-link--cta {
  background: var(--red);
  color: var(--white) !important;
  padding: 9px 20px;
  margin-left: 8px;
}
.nav-link--cta:hover, .nav-link--cta:focus-visible {
  background: var(--red-light);
  transform: translateY(-1px);
}
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: 6px;
  transition: background var(--transition);
}
.hamburger:hover { background: rgba(255,255,255,0.06); }
.hamburger__bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--off-white);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.open .hamburger__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open .hamburger__bar:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open .hamburger__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ══════════════════════════════════════════════
   HERO
   ══════════════════════════════════════════════ */
.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
  background: var(--bg);
}
.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}
.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 50% 50%, black 30%, transparent 80%);
}
.hero__pulse {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(192,57,43,0.18) 0%, transparent 70%);
  animation: pulse-grow 6s ease-in-out infinite;
}
.pulse-1 { width: 700px; height: 700px; top: -200px; right: -200px; animation-delay: 0s; }
.pulse-2 { width: 500px; height: 500px; bottom: -150px; left: -100px; animation-delay: -3s; }
@keyframes pulse-grow {
  0%,100% { transform: scale(1); opacity: 0.6; }
  50%      { transform: scale(1.15); opacity: 1; }
}
.hero__content {
  position: relative;
  z-index: 1;
  padding-block: 60px;
  max-width: 720px;
}
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(192,57,43,0.12);
  border: 1px solid var(--border-red);
  border-radius: 100px;
  padding: 7px 18px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--red-light);
  margin-bottom: 28px;
  animation: fade-up 0.6s ease both;
}
.hero__badge-dot {
  width: 7px; height: 7px;
  background: var(--red-light);
  border-radius: 50%;
  animation: blink 1.6s ease infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.3} }
.hero__title {
  font-family: var(--font-serif);
  font-size: clamp(2.6rem, 6vw, 4.2rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--white);
  margin-bottom: 16px;
  animation: fade-up 0.6s ease 0.1s both;
}
.hero__subtitle {
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.04em;
  margin-bottom: 20px;
  animation: fade-up 0.6s ease 0.2s both;
}
.hero__desc {
  color: var(--muted);
  font-size: 1.05rem;
  margin-bottom: 40px;
  animation: fade-up 0.6s ease 0.3s both;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 56px;
  animation: fade-up 0.6s ease 0.4s both;
}
.hero__stats {
  display: flex;
  align-items: center;
  gap: 32px;
  animation: fade-up 0.6s ease 0.5s both;
}
.stat__num {
  display: block;
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1;
}
.stat__label {
  display: block;
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 4px;
}
.stat__divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}
.hero__scroll {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  color: var(--muted);
  font-size: 1.2rem;
  animation: bounce 2s ease infinite;
  transition: color var(--transition);
}
.hero__scroll:hover { color: var(--red-light); }
@keyframes bounce { 0%,100%{transform:translateX(-50%) translateY(0)} 50%{transform:translateX(-50%) translateY(8px)} }
@keyframes fade-up { from{opacity:0;transform:translateY(20px)} to{opacity:1;transform:translateY(0)} }

/* ══════════════════════════════════════════════
   ABOUT
   ══════════════════════════════════════════════ */
.about { background: var(--bg-2); }
.about__inner {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 72px;
  align-items: center;
}
.about__visual { position: relative; }
.about__card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 20px;
  position: relative;
  z-index: 1;
  box-shadow: var(--shadow);
}
.about__icon-wrap {
  width: 80px; height: 80px;
  border-radius: 50%;
  background: rgba(192,57,43,0.1);
  border: 1.5px solid var(--border-red);
  display: flex;
  align-items: center;
  justify-content: center;
}
.about__icon { width: 48px; height: 48px; }
.about__card-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.about__card-info strong {
  font-size: 1.05rem;
  color: var(--white);
  font-weight: 600;
}
.about__card-info span {
  font-size: 0.85rem;
  color: var(--red-light);
}
.about__accent {
  position: absolute;
  width: 200px; height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(192,57,43,0.15) 0%, transparent 70%);
  bottom: -40px; right: -40px;
  pointer-events: none;
}
.about__text p {
  color: var(--muted);
  margin-bottom: 16px;
}
.about__credentials {
  margin-block: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.about__credentials li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.92rem;
  color: var(--off-white);
}
.cred-icon {
  color: var(--red-light);
  font-size: 0.9rem;
  margin-top: 2px;
  flex-shrink: 0;
}

/* ══════════════════════════════════════════════
   SERVICES
   ══════════════════════════════════════════════ */
.services { background: var(--bg); }
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--red), var(--red-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.service-card:hover {
  border-color: var(--border-red);
  transform: translateY(-4px);
  box-shadow: var(--shadow-red);
}
.service-card:hover::before { transform: scaleX(1); }
.service-card__icon {
  width: 48px; height: 48px;
  color: var(--red-light);
  background: rgba(192,57,43,0.1);
  border-radius: 10px;
  padding: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.service-card__icon svg { width: 100%; height: 100%; }
.service-card__title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--white);
}
.service-card__desc {
  font-size: 0.9rem;
  color: var(--muted);
  flex: 1;
  line-height: 1.65;
}
.service-card__tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(192,57,43,0.1);
  border: 1px solid var(--border-red);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--red-light);
  align-self: flex-start;
}

/* ══════════════════════════════════════════════
   SCHEDULE
   ══════════════════════════════════════════════ */
.schedule { background: var(--bg-2); }
.schedule__inner {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 72px;
  align-items: center;
}
.schedule__text p {
  color: var(--muted);
  margin-bottom: 32px;
}
.schedule__table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}
.schedule__table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.schedule__table thead {
  background: rgba(192,57,43,0.12);
  border-bottom: 1px solid var(--border-red);
}
.schedule__table th {
  padding: 14px 20px;
  text-align: left;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--red-light);
}
.schedule__table td {
  padding: 14px 20px;
  color: var(--off-white);
  border-bottom: 1px solid var(--border);
}
.schedule__table tbody tr:last-child td { border-bottom: none; }
.schedule__table tbody tr { background: var(--bg-card); transition: background var(--transition); }
.schedule__table tbody tr:hover { background: rgba(255,255,255,0.03); }
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
}
.badge--green {
  background: rgba(39,174,96,0.15);
  color: #2ecc71;
  border: 1px solid rgba(39,174,96,0.3);
}
.badge--blue {
  background: rgba(52,152,219,0.15);
  color: #5dade2;
  border: 1px solid rgba(52,152,219,0.3);
}

/* ══════════════════════════════════════════════
   TESTIMONIALS
   ══════════════════════════════════════════════ */
.testimonials { background: var(--bg); }
.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  transition: var(--transition);
}
.testimonial-card:hover {
  border-color: var(--border-red);
  box-shadow: var(--shadow-red);
}
.testimonial-card p {
  color: var(--off-white);
  font-size: 0.95rem;
  line-height: 1.7;
  flex: 1;
  position: relative;
}
.testimonial-card p::before {
  content: '\201C';
  font-family: var(--font-serif);
  font-size: 3.5rem;
  color: var(--red);
  line-height: 1;
  display: block;
  margin-bottom: -8px;
}
.testimonial-card footer {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.testimonial-card footer strong { color: var(--white); font-size: 0.92rem; }
.testimonial-card footer span  { color: var(--muted); font-size: 0.8rem; }

/* ══════════════════════════════════════════════
   CONTACT
   ══════════════════════════════════════════════ */
.contact { background: var(--bg-2); }
.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 72px;
  align-items: start;
}
.contact__info p { color: var(--muted); margin-bottom: 36px; }
.contact__list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.contact__list li {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}
.contact-icon { font-size: 1.25rem; margin-top: 2px; flex-shrink: 0; }
.contact__list div { display: flex; flex-direction: column; gap: 2px; }
.contact__list strong { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.07em; color: var(--muted); }
.contact__list a, .contact__list span { color: var(--off-white); font-size: 0.95rem; }
.contact__list a:hover { color: var(--red-light); }

/* Form */
.contact__form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.form-group label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--off-white);
}
.required { color: var(--red-light); }
.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg-3);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  color: var(--white);
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--muted); }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(192,57,43,0.15);
}
.form-group select { appearance: none; cursor: pointer; }
.form-group select option { background: var(--bg-3); color: var(--white); }
.form-group textarea { resize: vertical; min-height: 110px; }
.field-error { font-size: 0.8rem; color: #e74c3c; min-height: 18px; }
.form-group.has-error input,
.form-group.has-error textarea { border-color: #e74c3c; }
.form-success {
  text-align: center;
  color: #2ecc71;
  font-size: 0.9rem;
  padding: 12px;
  background: rgba(39,174,96,0.1);
  border-radius: var(--radius);
  border: 1px solid rgba(39,174,96,0.25);
}

/* ══════════════════════════════════════════════
   FOOTER
   ══════════════════════════════════════════════ */
.footer {
  background: #050505;
  border-top: 1px solid var(--border);
  padding-block: 48px;
}
.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  text-align: center;
}
.footer__brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.footer__brand .logo-cross { font-size: 1.8rem; }
.footer__brand span { font-size: 1rem; font-weight: 600; color: var(--white); }
.footer__brand small { font-size: 0.8rem; color: var(--muted); }
.footer__nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px 8px;
}
.footer__nav a {
  font-size: 0.875rem;
  color: var(--muted);
  padding: 6px 10px;
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
}
.footer__nav a:hover { color: var(--white); background: rgba(255,255,255,0.05); }
.footer__copy { font-size: 0.78rem; color: var(--muted); }

/* ══════════════════════════════════════════════
   BACK TO TOP
   ══════════════════════════════════════════════ */
.back-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 90;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--red);
  color: var(--white);
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-red);
  transition: var(--transition);
  opacity: 0;
  pointer-events: none;
}
.back-top.visible { opacity: 1; pointer-events: auto; }
.back-top:hover { background: var(--red-light); transform: translateY(-3px); }

/* ══════════════════════════════════════════════
   SCROLL REVEAL
   ══════════════════════════════════════════════ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ══════════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .services__grid       { grid-template-columns: repeat(2, 1fr); }
  .testimonials__grid   { grid-template-columns: repeat(2, 1fr); }
  .about__inner         { grid-template-columns: 1fr; gap: 48px; }
  .about__visual        { max-width: 400px; margin-inline: auto; }
  .schedule__inner      { grid-template-columns: 1fr; gap: 48px; }
  .contact__inner       { grid-template-columns: 1fr; gap: 48px; }
}
@media (max-width: 768px) {
  .section { padding-block: 72px; }
  .navbar__nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: 100svh;
    background: rgba(10,10,10,0.98);
    backdrop-filter: blur(16px);
    display: flex;
    align-items: center;
    justify-content: center;
    transform: translateX(100%);
    transition: transform var(--transition);
    z-index: 99;
  }
  .navbar__nav.open { transform: translateX(0); }
  .nav-list { flex-direction: column; gap: 8px; text-align: center; }
  .nav-link { font-size: 1.2rem; padding: 12px 28px; }
  .nav-link--cta { margin-left: 0; margin-top: 8px; }
  .hamburger { display: flex; z-index: 100; }
  .services__grid     { grid-template-columns: 1fr; }
  .testimonials__grid { grid-template-columns: 1fr; }
  .hero__stats { flex-wrap: wrap; gap: 20px; }
  .stat__divider { display: none; }
  .contact__form { padding: 28px 22px; }
  .hero__title { font-size: clamp(2rem, 8vw, 3rem); }
}
@media (max-width: 480px) {
  .hero__actions { flex-direction: column; }
  .btn { width: 100%; text-align: center; }
  .schedule__table td, .schedule__table th { padding: 10px 14px; font-size: 0.82rem; }
}

/* ── Focus visible outline ── */
:focus-visible {
  outline: 2px solid var(--red-light);
  outline-offset: 3px;
}