/* ==========================================================================
   CEI Institute — estilos globales (header, menú, botones, footer, base)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&display=swap');

:root {
  --color-teal-dark: #007470;
  --color-teal-darker: #047c78;
  --color-teal-light: #bfdcdc;
  --color-teal-light-alt: #96cccb;
  --color-white: #ffffff;
  --color-text: #333333;

  --font-display: 'Agan', Helvetica, Arial, Lucida, sans-serif;
  --font-display-light: 'Agane 45 Light', Helvetica, Arial, Lucida, sans-serif;
  --font-display-roman: 'Agane 55 roman', Helvetica, Arial, Lucida, sans-serif;
  --font-display-bold: 'Agane 65 bold', Helvetica, Arial, Lucida, sans-serif;
  --font-display-xbold: 'Agane 75 extra bold', Helvetica, Arial, Lucida, sans-serif;
  --font-body: 'Roboto', Helvetica, Arial, Lucida, sans-serif;

  --header-height: 84px;
  --transition-fast: 0.2s ease;
  --transition-medium: 0.35s cubic-bezier(0.65, 0, 0.35, 1);

  --max-width: 1200px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-white);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* -------------------------------- Botones -------------------------------- */

.btn {
  display: inline-block;
  padding: 14px 38px;
  border-radius: 15px;
  border: 4px solid transparent;
  font-size: 22px;
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast),
    background-color var(--transition-fast);
  text-align: center;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
}

.btn-light {
  background-color: var(--color-teal-light);
  border-color: var(--color-teal-light);
  color: var(--color-white) !important;
  font-family: var(--font-display-roman) !important;
  font-size: 26px;
}

.btn-teal {
  background-color: var(--color-teal-dark);
  border-color: var(--color-teal-dark);
  color: var(--color-white) !important;
  font-family: var(--font-display) !important;
  font-size: 28px;
}

/* -------------------------------- Header -------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1300;
  height: var(--header-height);
  display: flex;
  align-items: center;
  background-color: var(--color-white);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo img {
  height: 52px;
  width: auto;
  transition: transform var(--transition-fast);
}

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

.menu-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background-color var(--transition-fast);
}

.menu-toggle:hover,
.menu-toggle:focus-visible {
  background-color: var(--color-teal-light);
}

.menu-toggle img {
  width: 28px;
  height: 28px;
}

/* -------------------------------- Menú lateral -------------------------------- */

.menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 30, 29, 0.35);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-medium);
  z-index: 1100;
}

.menu-overlay.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.side-menu {
  position: fixed;
  top: 0;
  right: 0;
  height: 100%;
  width: min(380px, 85vw);
  background-color: var(--color-teal-dark);
  transform: translateX(100%);
  transition: transform var(--transition-medium);
  z-index: 1200;
  display: flex;
  flex-direction: column;
  padding: calc(var(--header-height) + 20px) 40px 40px;
}

.side-menu.is-open {
  transform: translateX(0);
}

.side-menu ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.side-menu a {
  display: block;
  padding: 16px 4px;
  color: var(--color-white);
  font-family: var(--font-display-roman);
  font-size: 22px;
  letter-spacing: 0.5px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  transition: padding-left var(--transition-fast), color var(--transition-fast);
}

.side-menu a:hover,
.side-menu a:focus-visible {
  padding-left: 14px;
  color: var(--color-teal-light);
}

body.menu-open {
  overflow: hidden;
}

/* -------------------------------- Footer -------------------------------- */

.site-footer {
  background-color: var(--color-teal-dark);
  color: var(--color-white);
  padding: 70px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  gap: 50px;
}

.footer-col h3 {
  font-family: var(--font-display-bold);
  font-size: 20px;
  letter-spacing: 1px;
  margin: 0 0 20px;
  color: var(--color-teal-light);
}

.footer-col ul li a {
  display: inline-block;
  padding: 6px 0;
  font-family: var(--font-body);
  font-size: 15px;
  transition: transform var(--transition-fast), color var(--transition-fast);
}

.footer-col ul li a:hover,
.footer-col ul li a:focus-visible {
  color: var(--color-teal-light);
  transform: translateX(4px);
}

.footer-about p {
  font-family: var(--font-body);
  font-size: 14px;
  color: rgba(255, 255, 255, 0.9);
  margin: 0 0 14px;
}

.footer-brand img.footer-logo {
  width: 140px;
  margin-bottom: 20px;
  filter: brightness(0) invert(1);
}

.footer-social p {
  font-family: var(--font-body);
  font-size: 14px;
  margin: 0 0 12px;
}

.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.12);
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.footer-social a:hover,
.footer-social a:focus-visible {
  background-color: var(--color-teal-light);
  transform: translateY(-3px);
}

.footer-social img {
  width: 20px;
  height: 20px;
  filter: brightness(0) invert(1);
}

.footer-social a:hover img,
.footer-social a:focus-visible img {
  filter: none;
}

.footer-legal {
  margin-top: 20px;
  list-style: none;
  padding: 0;
}

.footer-legal li a {
  display: inline-block;
  padding: 4px 0;
  font-family: var(--font-body);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.75);
  transition: color var(--transition-fast);
}

.footer-legal li a:hover,
.footer-legal li a:focus-visible {
  color: var(--color-teal-light);
}

.footer-bottom {
  margin-top: 50px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.75);
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

/* -------------------------------- Formulario de contacto -------------------------------- */

.contact-form-section {
  background-color: #9e5f7e;
  padding: 90px 24px;
}

.contact-form-section .container {
  max-width: 820px;
}

.contact-form-section h2 {
  font-family: var(--font-display-roman), Helvetica, Arial, Lucida, sans-serif;
  font-size: 38px;
  color: #ffffff !important;
  text-align: center;
  margin: 0 0 30px;
}

.contact-form-section > .container > p {
  font-family: var(--font-body), Helvetica, Arial, Lucida, sans-serif;
  color: #e8f4f4;
  text-align: center;
  max-width: 700px;
  margin: 0 auto 50px;
  font-size: 16px;
}

.contact-form {
  background-color: #9e5f7e;
  border: 1.5px solid rgba(255, 255, 255, 0.35);
  border-radius: 20px;
  padding: 46px 40px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px 24px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-field.full {
  grid-column: 1 / -1;
}

.form-field label {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  color: #ffffff;
}

.form-field input,
.form-field select,
.form-field textarea {
  font-family: var(--font-body);
  font-size: 15px;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1.5px solid #731040;
  background-color: #731040;
  color: #ffffff;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-field input::placeholder,
.form-field textarea::placeholder {
  color: rgba(255, 255, 255, 0.65);
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: #ffffff;
  box-shadow: 0 0 0 3px rgba(115, 16, 64, 0.35);
}

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

.field-error {
  font-size: 12.5px;
  color: #c0392b;
  min-height: 14px;
}

.form-consent {
  grid-column: 1 / -1;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 14px;
  color: #ffffff;
}

.form-consent input {
  margin-top: 4px;
}

.form-consent a {
  color: #ffffff;
  text-decoration: underline;
  font-weight: 600;
}

.form-submit {
  grid-column: 1 / -1;
  display: flex;
  justify-content: center;
  margin-top: 10px;
}

.form-submit button {
  background-color: #ffffff;
  border: 4px solid #731040;
  color: #731040 !important;
}

.form-success {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--color-teal-dark);
  font-weight: 600;
  display: none;
}

.form-success.is-visible {
  display: block;
}

@media (max-width: 900px) {
  .contact-form {
    grid-template-columns: 1fr;
    padding: 32px 24px;
  }
}

/* -------------------------------- Página interior genérica -------------------------------- */

.page-hero {
  padding: 90px 0 60px;
  text-align: center;
  background: linear-gradient(120deg, var(--color-teal-darker), var(--color-teal-light-alt));
}

.page-hero h1 {
  font-family: var(--font-display-bold);
  color: var(--color-white) !important;
  font-size: 42px;
  letter-spacing: 2px;
  margin: 0;
}

.page-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 60px 24px;
  color: var(--color-teal-dark);
  font-family: var(--font-body);
}