/* ==========================================================================
   Centro Melani Costa — estilos
   Paleta tomada del logotipo: azul marino corporativo + azules de las ondas
   ========================================================================== */

:root {
  --navy: #1d3e6f;
  --navy-dark: #142c50;
  --navy-deep: #0e2144;
  --blue: #4f7fd9;
  --blue-light: #9db9e8;
  --bg: #ffffff;
  --bg-soft: #f4f7fc;
  --text: #2b3442;
  --text-soft: #5b6675;
  --white: #ffffff;
  --radius: 18px;
  --shadow: 0 10px 30px rgba(20, 44, 80, 0.10);
  --shadow-lg: 0 18px 45px rgba(20, 44, 80, 0.16);
  --font-head: "Poppins", sans-serif;
  --font-body: "Inter", sans-serif;
  --header-h: 76px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }

body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  width: min(1120px, 92%);
  margin-inline: auto;
}

/* ---------- tipografía de sección ---------- */
.section__kicker {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 0.6rem;
}

.section__title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.7rem, 3.4vw, 2.5rem);
  line-height: 1.2;
  color: var(--navy);
  margin-bottom: 1rem;
}

.section__lead {
  max-width: 640px;
  color: var(--text-soft);
  margin-bottom: 2.5rem;
}

section { padding: clamp(4rem, 8vw, 6.5rem) 0; }

/* ---------- botones ---------- */
.btn {
  display: inline-block;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.8rem 1.9rem;
  border-radius: 999px;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
}

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

.btn--primary {
  background: var(--navy);
  color: var(--white);
  box-shadow: 0 6px 18px rgba(29, 62, 111, 0.35);
}
.btn--primary:hover { background: var(--navy-dark); }

.btn--light {
  background: var(--white);
  color: var(--navy);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25);
}

.btn--ghost {
  color: var(--white);
  border: 1.5px solid rgba(255, 255, 255, 0.6);
}
.btn--ghost:hover { background: rgba(255, 255, 255, 0.12); }

.btn--lg { padding: 1rem 2.6rem; font-size: 1.05rem; }

/* ==========================================================================
   Header
   ========================================================================== */
.header {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  z-index: 100;
  transition: box-shadow 0.25s ease;
}

.header.is-scrolled { box-shadow: 0 4px 20px rgba(20, 44, 80, 0.12); }

.header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.header__logo-img { height: 52px; width: auto; }

.nav {
  display: flex;
  align-items: center;
  gap: 1.7rem;
}

.nav__link {
  font-family: var(--font-head);
  font-weight: 500;
  font-size: 0.92rem;
  color: var(--navy);
  text-decoration: none;
  position: relative;
  white-space: nowrap;
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 0; bottom: -5px;
  width: 0; height: 2px;
  background: var(--blue);
  transition: width 0.25s ease;
}

.nav__link:hover::after { width: 100%; }

.nav__cta { padding: 0.6rem 1.4rem; font-size: 0.88rem; }

.nav__langs {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  font-family: var(--font-head);
}

.nav__lang {
  padding: 0.2rem 0.45rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-soft);
  text-decoration: none;
  border-radius: 8px;
}

.nav__lang:hover { color: var(--navy); background: var(--bg-soft); }

.nav__lang.is-active {
  color: var(--navy);
  font-weight: 700;
  background: var(--bg-soft);
}

.header__burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px; height: 44px;
  background: none;
  border: 0;
  cursor: pointer;
}

.header__burger span {
  display: block;
  width: 24px; height: 2px;
  margin-inline: auto;
  background: var(--navy);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.header__burger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.header__burger.is-open span:nth-child(2) { opacity: 0; }
.header__burger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: radial-gradient(120% 140% at 20% 0%, #24498a 0%, var(--navy-dark) 45%, var(--navy-deep) 100%);
  overflow: hidden;
  padding: calc(var(--header-h) + 2rem) 0 4rem;
}

.hero__waves,
.quote__waves,
.footer__waves {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero__waves svg,
.quote__waves svg,
.footer__waves svg {
  width: 100%;
  height: 100%;
}

.hero__content { position: relative; }

.hero__logo {
  height: clamp(120px, 20vw, 180px);
  width: auto;
  margin: 0 auto 2rem;
  /* logo azul marino → blanco */
  filter: brightness(0) invert(1);
}

.hero__title {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(1.9rem, 4.5vw, 3.2rem);
  line-height: 1.25;
  color: var(--white);
  margin-bottom: 1.2rem;
}

.hero__title em {
  font-style: normal;
  font-weight: 700;
  color: var(--blue-light);
}

.hero__tags {
  font-family: var(--font-head);
  font-weight: 500;
  font-size: clamp(0.8rem, 1.6vw, 0.95rem);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 2.6rem;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  width: 26px; height: 42px;
  border: 2px solid rgba(255, 255, 255, 0.5);
  border-radius: 999px;
}

.hero__scroll span {
  position: absolute;
  top: 8px; left: 50%;
  width: 4px; height: 8px;
  margin-left: -2px;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 4px;
  animation: scrollhint 1.8s ease-in-out infinite;
}

@keyframes scrollhint {
  0%   { transform: translateY(0); opacity: 1; }
  70%  { transform: translateY(12px); opacity: 0; }
  100% { transform: translateY(0); opacity: 0; }
}

/* ==========================================================================
   Intro
   ========================================================================== */
.intro { background: var(--bg); }

.intro__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
}

.intro__features {
  list-style: none;
  display: grid;
  gap: 1.4rem;
}

.feature {
  display: grid;
  grid-template-columns: 54px 1fr;
  grid-template-rows: auto auto;
  column-gap: 1.1rem;
  padding: 1.3rem 1.5rem;
  background: var(--bg-soft);
  border-radius: var(--radius);
}

.feature__icon {
  grid-row: 1 / 3;
  width: 54px; height: 54px;
  display: grid;
  place-items: center;
  background: var(--navy);
  color: var(--white);
  border-radius: 14px;
}

.feature__icon svg { width: 28px; height: 28px; }

.feature h3 {
  font-family: var(--font-head);
  font-size: 1.02rem;
  color: var(--navy);
}

.feature p { font-size: 0.92rem; color: var(--text-soft); }

/* ==========================================================================
   Servicios
   ========================================================================== */
.services { background: var(--bg-soft); }

.services__grid {
  margin-top: 2.5rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.8rem;
}

.card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }

.card__media { aspect-ratio: 4 / 3; overflow: hidden; }

.card__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.card:hover .card__media img { transform: scale(1.05); }

.card__body {
  padding: 1.6rem 1.6rem 1.8rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.card__title {
  font-family: var(--font-head);
  font-size: 1.2rem;
  color: var(--navy);
  margin-bottom: 0.7rem;
}

.card__body > p { font-size: 0.94rem; color: var(--text-soft); }

.card__list {
  list-style: none;
  margin: 1.1rem 0 1.4rem;
  display: grid;
  gap: 0.45rem;
}

.card__list li {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text);
  padding-left: 1.5rem;
  position: relative;
}

.card__list li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.42em;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--blue);
}

.card__link {
  margin-top: auto;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--navy);
  text-decoration: none;
}

.card__link:hover { color: var(--blue); }

/* ==========================================================================
   Técnicas y aparatología
   ========================================================================== */
.techniques__grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(2rem, 6vw, 4.5rem);
  align-items: center;
}

.techniques__photo {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.techniques__lead {
  color: var(--text-soft);
  margin-bottom: 1.8rem;
}

.techniques__list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
}

.techniques__list li {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.75rem 1.1rem;
  background: var(--bg-soft);
  border-radius: 12px;
  font-family: var(--font-head);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--navy);
}

.techniques__list li::before {
  content: "";
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--blue);
  flex-shrink: 0;
}

/* ==========================================================================
   Cita / frase
   ========================================================================== */
.quote {
  position: relative;
  background: linear-gradient(115deg, var(--navy-dark), var(--navy) 60%, #2a5291);
  overflow: hidden;
  text-align: center;
  padding: clamp(3.5rem, 7vw, 5.5rem) 0;
}

.quote .container { position: relative; }

.quote__text {
  font-family: var(--font-head);
  font-weight: 500;
  font-size: clamp(1.4rem, 3.2vw, 2.2rem);
  color: rgba(255, 255, 255, 0.85);
}

.quote__text strong { font-weight: 700; color: var(--white); }

/* ==========================================================================
   El centro
   ========================================================================== */
.center__gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
}

.center__item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  aspect-ratio: 3 / 4;
}

.center__item--wide {
  grid-column: span 2;
  aspect-ratio: auto;
}

.center__item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.center__item:hover img { transform: scale(1.04); }

/* ==========================================================================
   Sobre mí
   ========================================================================== */
.about { background: var(--bg-soft); }

.about__grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(2rem, 6vw, 4.5rem);
  align-items: center;
}

.about__photo {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.about__text p { margin-bottom: 1rem; color: var(--text-soft); }

.about__quote {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--navy) !important;
  margin: 1.4rem 0 1.8rem;
}

/* ==========================================================================
   Contacto
   ========================================================================== */
.contact { text-align: center; }

.contact .section__lead { margin-inline: auto; }

.contact__hours {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin: -1.2rem auto 2.6rem;
  padding: 0.65rem 1.5rem;
  background: var(--bg-soft);
  border-radius: 999px;
  font-family: var(--font-head);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--navy);
}

.contact__hours svg { width: 20px; height: 20px; color: var(--blue); flex-shrink: 0; }

.contact__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.4rem;
  max-width: 1020px;
  margin: 0 auto 2.8rem;
}

.contact__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  padding: 1.8rem 1.2rem;
  background: var(--bg-soft);
  border-radius: var(--radius);
  text-decoration: none;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.contact__item:hover { transform: translateY(-4px); box-shadow: var(--shadow); }

.contact__icon {
  width: 52px; height: 52px;
  display: grid;
  place-items: center;
  background: var(--navy);
  color: var(--white);
  border-radius: 50%;
  margin-bottom: 0.6rem;
}

.contact__icon svg { width: 26px; height: 26px; }

.contact__label {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-soft);
}

.contact__value {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1.08rem;
  color: var(--navy);
}

.contact__widget {
  max-width: 560px;
  margin: 0 auto 3rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  position: relative;
  background: var(--navy-deep);
  overflow: hidden;
  padding: 3.5rem 0 2.5rem;
  text-align: center;
}

.footer__inner { position: relative; }

.footer__logo {
  height: 74px;
  width: auto;
  margin: 0 auto 1.6rem;
  filter: brightness(0) invert(1);
}

.footer__nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.6rem;
  margin-bottom: 1.6rem;
}

.footer__nav a {
  font-family: var(--font-head);
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
}

.footer__nav a:hover { color: var(--white); }

.footer__copy {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.45);
}

.footer__credit {
  margin-top: 0.5rem;
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.35);
}

.footer__credit a {
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.25);
}

.footer__credit a:hover { color: var(--white); border-bottom-color: var(--white); }

/* ==========================================================================
   Animaciones de aparición
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero__scroll span { animation: none; }
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 960px) {
  .services__grid { grid-template-columns: 1fr 1fr; }
  .contact__grid { grid-template-columns: 1fr 1fr; max-width: 640px; }
  .intro__grid { grid-template-columns: 1fr; }
  .techniques__grid { grid-template-columns: 1fr; }
  .techniques__photo { max-width: 480px; }
  .about__grid { grid-template-columns: 1fr; }
  .about__photo { max-width: 420px; }
}

@media (max-width: 990px) {
  .header__burger { display: flex; }

  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    flex-direction: column;
    align-items: center;
    gap: 1.4rem;
    padding: 2rem 0 2.4rem;
    background: var(--white);
    box-shadow: 0 18px 30px rgba(20, 44, 80, 0.15);
    transform: translateY(-130%);
    transition: transform 0.3s ease;
    z-index: 90;
  }

  .nav.is-open { transform: translateY(0); }

  .nav__link { font-size: 1.05rem; }
}

@media (max-width: 720px) {
  .services__grid { grid-template-columns: 1fr; }
  .techniques__list { grid-template-columns: 1fr; }
  .center__gallery { grid-template-columns: 1fr; }
  .center__item { aspect-ratio: 4 / 3; }
  .center__item--wide { grid-column: auto; }
  .contact__grid { grid-template-columns: 1fr; max-width: 420px; }
}