/* ============================================================
   SERGIO CAROD — Constelaciones Familiares Valencia
   css/styles.css
   ============================================================ */

/* ------------------------------------------------------------
   Design Tokens
   ------------------------------------------------------------ */
:root {
  /* Colors */
  --color-primary:      #2d4a3e;
  --color-secondary:    #5a7a6a;
  --color-accent:       #a8c5b8;
  --color-bg:           #f0f5f2;
  --color-white:        #ffffff;
  --color-text-on-dark: #f0f5f2;
  --color-text:         #1a1a1a;
  --color-text-muted:   #4a5568;

  /* Typography */
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body:    -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
                  Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;

  /* Sizing */
  --max-width:       1100px;
  --section-padding: 80px;
  --nav-height:      78px;

  /* Radii & Shadow */
  --radius: 6px;
  --shadow: 0 2px 8px rgba(45, 74, 62, 0.08);

  /* Line Heights */
  --lh-body:     1.7;
  --lh-heading:  1.3;

  /* Transitions */
  --transition: 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: var(--lh-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  padding-top: var(--nav-height);
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: var(--lh-heading);
  color: inherit;
}

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

.section {
  padding-block: 48px;
}

@media (min-width: 768px) {
  .section {
    padding-block: var(--section-padding);
  }
}

.section--alt {
  background-color: var(--color-white);
}

.section--dark {
  background-color: var(--color-primary);
  color: var(--color-text-on-dark);
}

/* ------------------------------------------------------------
   Buttons
   ------------------------------------------------------------ */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: background-color var(--transition), color var(--transition),
              transform var(--transition), box-shadow var(--transition);
  text-align: center;
  cursor: pointer;
  border: 2px solid transparent;
}

.btn:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-primary);
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background-color: var(--color-secondary);
  border-color: var(--color-secondary);
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(45, 74, 62, 0.18);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-1px);
}

.btn-outline--light {
  background-color: transparent;
  color: var(--color-text-on-dark);
  border-color: var(--color-accent);
}

.btn-outline--light:hover {
  background-color: var(--color-accent);
  color: var(--color-primary);
  transform: translateY(-1px);
}

/* ------------------------------------------------------------
   Cards
   ------------------------------------------------------------ */
.card {
  background: var(--color-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px 28px;
  transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(45, 74, 62, 0.14);
}

/* ------------------------------------------------------------
   Forms
   ------------------------------------------------------------ */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
}

.form-group input,
.form-group select,
.form-group textarea {
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 10px 14px;
  border: 1.5px solid var(--color-accent);
  border-radius: var(--radius);
  background: var(--color-white);
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 3px rgba(90, 122, 106, 0.15);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.required::after {
  content: ' *';
  color: #c0392b;
}

.form-error {
  font-size: 0.85rem;
  color: #c0392b;
  margin-top: 4px;
}

.form-success {
  font-size: 0.95rem;
  color: var(--color-primary);
  background: var(--color-accent);
  border-radius: var(--radius);
  padding: 12px 16px;
  margin-top: 16px;
}

/* ------------------------------------------------------------
   Typography utilities
   ------------------------------------------------------------ */
.text-center { text-align: center; }
.text-muted   { color: var(--color-text-muted); }

.section-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-secondary);
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  line-height: var(--lh-heading);
  margin-bottom: 20px;
}

.section-subtitle {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin-bottom: 48px;
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background-color: var(--color-white);
  border-bottom: 1px solid rgba(45, 74, 62, 0.1);
  box-shadow: 0 1px 4px rgba(45, 74, 62, 0.06);
  height: var(--nav-height);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav__emblem {
  height: 56px;
  width: 56px;
  color: var(--color-primary);
}

.nav__wordmark {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 500;
  color: var(--color-primary);
  letter-spacing: 0.04em;
}

.nav__menu {
  display: none;
  flex-direction: column;
  position: absolute;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: var(--color-white);
  border-bottom: 1px solid rgba(45, 74, 62, 0.1);
  padding: 16px 20px 24px;
  gap: 4px;
}

.nav__menu.is-open {
  display: flex;
}

.nav__menu a {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text);
  padding: 10px 0;
  border-bottom: 1px solid rgba(45, 74, 62, 0.07);
  transition: color var(--transition);
}

.nav__menu a:last-child {
  border-bottom: none;
}

.nav__menu a:hover {
  color: var(--color-primary);
}

.nav__toggle {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
}

.nav__toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--color-primary);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
  transform-origin: center;
}

.nav__toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}

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

.nav__toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

@media (min-width: 768px) {
  .nav__toggle {
    display: none;
  }

  .nav__menu {
    display: flex;
    flex-direction: row;
    position: static;
    background: none;
    border: none;
    padding: 0;
    gap: 32px;
    align-items: center;
  }

  .nav__menu a {
    font-size: 0.9375rem;
    padding: 4px 0;
    border-bottom: none;
    position: relative;
  }

  .nav__menu a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--color-primary);
    transform: scaleX(0);
    transition: transform var(--transition);
  }

  .nav__menu a:hover::after {
    transform: scaleX(1);
  }
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  background: linear-gradient(160deg, #2d4a3e 0%, #3a5f4f 40%, #2d4a3e 100%);
  color: var(--color-text-on-dark);
  text-align: center;
  padding-block: 100px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at 50% 50%, rgba(168, 197, 184, 0.06) 0%, transparent 60%);
  pointer-events: none;
}

.hero__canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin-inline: auto;
}

.hero__emblem-large {
  width: 100px;
  height: 100px;
  margin: 0 auto 28px;
  display: block;
  opacity: 0.85;
}

@media (min-width: 768px) {
  .hero__emblem-large {
    width: 120px;
    height: 120px;
  }
  .hero {
    padding-block: 130px;
  }
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5.5vw, 3.4rem);
  line-height: 1.15;
  margin-bottom: 14px;
  color: var(--color-text-on-dark);
  letter-spacing: 0.01em;
  font-weight: 500;
}

.hero__subtitle {
  font-family: var(--font-body);
  font-size: clamp(0.85rem, 2vw, 1rem);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 6px;
  opacity: 0.8;
}

.hero__location {
  font-family: var(--font-heading);
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
  color: var(--color-accent);
  font-style: italic;
  margin-bottom: 32px;
  letter-spacing: 0.05em;
}

.hero__tagline {
  font-size: clamp(1rem, 2vw, 1.1875rem);
  line-height: 1.7;
  color: var(--color-accent);
  max-width: 580px;
  margin-inline: auto;
  margin-bottom: 40px;
  opacity: 0.85;
}

/* ============================================================
   EXPLAINER
   ============================================================ */
.explainer__text {
  max-width: 720px;
  margin-inline: auto;
  margin-bottom: 56px;
}

.explainer__text p {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  margin-bottom: 20px;
}

.explainer__text p:last-child {
  margin-bottom: 0;
}

.benefits {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 768px) {
  .benefits {
    grid-template-columns: repeat(3, 1fr);
  }
}

.benefit {
  text-align: center;
  padding: 36px 24px;
}

.benefit__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--color-secondary);
}

.benefit__icon svg {
  width: 48px;
  height: 48px;
}

.benefit h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.benefit p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: var(--lh-body);
}

/* ============================================================
   SOBRE MI
   ============================================================ */
.about__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: center;
}

@media (min-width: 768px) {
  .about__grid {
    grid-template-columns: 1.5fr 1fr;
    gap: 64px;
  }
}

.about__text h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  color: var(--color-primary);
  margin-bottom: 24px;
}

.about__text p {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  margin-bottom: 20px;
}

.about__text p:last-child {
  margin-bottom: 0;
}

.about__photo-frame {
  aspect-ratio: 3 / 4;
  border-radius: var(--radius);
  overflow: hidden;
  order: -1;
}

.about__photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
}

@media (min-width: 768px) {
  .about__photo-frame {
    order: 0;
  }
}

/* ============================================================
   SERVICIOS
   ============================================================ */
.services__header {
  text-align: center;
  margin-bottom: 48px;
}

.services__header h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  color: var(--color-primary);
  margin-bottom: 16px;
}

.services__subtitle {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  max-width: 560px;
  margin-inline: auto;
}

.services {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 768px) {
  .services {
    grid-template-columns: repeat(3, 1fr);
  }
}

.service {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 40px 28px 36px;
}

.service__name {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.service__price {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 20px;
  line-height: 1;
}

.service__price sup {
  font-size: 1.25rem;
  vertical-align: super;
}

.service__desc {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: var(--lh-body);
  margin-bottom: 32px;
  flex: 1;
}

/* ===== FORM LAYOUT ===== */
.form { max-width: 720px; margin-top: 24px; }
.form-row { display: grid; grid-template-columns: 1fr; gap: 20px; margin-bottom: 20px; }
@media (min-width: 768px) { .form-row { grid-template-columns: 1fr 1fr; } }
.form > .form-group { margin-bottom: 20px; }
.form__submit { margin-top: 8px; }

/* ===== RADIO GROUP ===== */
.radio-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 4px;
}

.radio-group label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 400;
  font-size: 0.95rem;
  cursor: pointer;
}

.radio-group input[type="radio"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
  margin: 0;
  flex-shrink: 0;
}
.form__success {
  margin-top: 16px;
  padding: 16px;
  background: var(--color-accent);
  border-radius: var(--radius);
  color: var(--color-primary);
  font-size: 0.95rem;
}

/* ===== BLOG PREVIEW ===== */
.blog-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin: 24px 0;
}

@media (min-width: 768px) {
  .blog-cards { grid-template-columns: repeat(3, 1fr); }
}

.blog-card { display: block; color: inherit; transition: transform 0.2s; }
.blog-card:hover { transform: translateY(-2px); }
.blog-card__date { font-size: 0.8rem; color: var(--color-accent); display: block; margin-bottom: 8px; }
.blog-card h3 { font-size: 1.1rem; margin-bottom: 8px; }
.blog-card p { font-size: 0.9rem; }

.blog-more {
  display: inline-block;
  margin-top: 16px;
  color: var(--color-primary);
  font-size: 0.95rem;
  border-bottom: 1px solid var(--color-accent);
  padding-bottom: 2px;
}
.blog-more:hover { border-color: var(--color-primary); }

/* ===== RECURSOS ===== */
.recursos {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: 36px;
}

@media (min-width: 768px) {
  .recursos { grid-template-columns: repeat(3, 1fr); }
}

.recurso {
  padding: 24px;
  background: var(--color-white);
  border-radius: var(--radius);
  border-left: 3px solid var(--color-accent);
}

.recurso h3 { font-size: 1.1rem; margin-bottom: 4px; }
.recurso__author { font-size: 0.85rem; color: var(--color-accent); margin-bottom: 12px; font-style: italic; }
.recurso p:last-child { font-size: 0.9rem; }

/* ===== TESTIMONIALS ===== */
.testimonials {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 36px;
}

@media (min-width: 768px) {
  .testimonials { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .testimonials { grid-template-columns: repeat(3, 1fr); }
}

.testimonial {
  background: var(--color-bg);
  border-radius: var(--radius);
  padding: 28px;
}

.testimonial__stars {
  color: #d4a017;
  font-size: 1.1rem;
  margin-bottom: 12px;
}

.testimonial__text {
  font-size: 0.95rem;
  font-style: italic;
  margin-bottom: 16px;
  line-height: 1.6;
}

.testimonial__name {
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--color-primary);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--color-primary);
  color: var(--color-text-on-dark);
  padding: 48px 0 32px;
}
.footer__inner { text-align: center; }
.footer__name { font-family: var(--font-heading); font-size: 1.4rem; margin-bottom: 4px; }
.footer__subtitle { font-size: 0.9rem; color: var(--color-accent); opacity: 0.8; margin-bottom: 4px; }
.footer__location { font-size: 0.85rem; color: var(--color-accent); margin-bottom: 24px; }
.footer__nav { display: flex; justify-content: center; flex-wrap: wrap; gap: 16px; margin-bottom: 24px; }
.footer__nav a { color: var(--color-accent); font-size: 0.85rem; transition: color 0.2s; }
.footer__nav a:hover { color: var(--color-text-on-dark); }
.footer__copy { font-size: 0.8rem; color: var(--color-accent); opacity: 0.7; }

[id] { scroll-margin-top: 80px; }