/* ============================================================
   Academia Futuro — styles.css
   Paleta: Azul marino (#0d2b55) + Dorado (#c9a84c) + Blanco
   ============================================================ */

/* ---------- Variables ---------- */
:root {
  --color-primary:      #1f376cff;
  --color-primary-dark: #091e3d;
  --color-primary-mid:  #2d518dff;
  --color-accent:       #c9a84c;
  --color-accent-dark:  #a8872e;
  --color-white:        #ffffff;
  --color-bg:           #f4f6fa;
  --color-surface:      #ffffff;
  --color-text:         #1e2d40;
  --color-text-muted:   #b3c2caff;
  --color-border:       #d0d9e8;
  --color-error:        #d9534f;
  --color-success:      #28a745;

--font-display: 'Megrim', cursive;
--font-body:    'Be Vietnam Pro', sans-serif;
--font-title:   'Josefin Sans', sans-serif;

  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;

  --shadow-sm: 0 2px 8px rgba(13, 43, 85, 0.08);
  --shadow-md: 0 6px 24px rgba(13, 43, 85, 0.14);
  --shadow-lg: 0 12px 40px rgba(13, 43, 85, 0.18);

  --transition: 0.25s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* ---------- Container ---------- */
.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================================
   CABECERA
   ============================================================ */
.header {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: 18px 0;
  box-shadow: var(--shadow-md);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.header__brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header__logo {
  width: 75px;
  height: 70px;
  background-image: url('img/logoclaro01.svg');
  background-size: cover;       
  background-position: center; 
  background-repeat: no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.header__text {
  display: flex;
  flex-direction: column;
}

.header__name {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--color-white);
}

.header__slogan {
  font-family: var(--font-title);
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 0.04em;
  margin-top: 2px;
}

.header__contact {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
}

.header__contact-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.85);
  transition: color var(--transition);
}

.header__contact-item:hover { color: var(--color-accent); }

.header__contact-item i {
  color: var(--color-accent);
  width: 16px;
  text-align: center;
}

/* ============================================================
   NAVEGACIÓN
   ============================================================ */
.nav {
  background-color: var(--color-primary-dark);
  border-bottom: 3px solid var(--color-accent);
}

.nav__list {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}

.nav__link {
  display: block;
  padding: 14px 28px;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.75);
  position: relative;
  transition: color var(--transition);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 3px;
  background-color: var(--color-accent);
  transition: width var(--transition);
}

.nav__link:hover,
.nav__link--active {
  color: var(--color-white);
}

.nav__link:hover::after,
.nav__link--active::after {
  width: 100%;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  background: linear-gradient(
    135deg,
    var(--color-primary) 0%,
    var(--color-primary-mid) 100%
  );
  padding: 56px 0 52px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(201, 168, 76, 0.12) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.05) 0%, transparent 40%);
  pointer-events: none;
}

.hero__title {
  font-family: var(--font-title);
  font-size: clamp(1.4rem, 3vw, 2.2rem);
  color: var(--color-white);
  letter-spacing: 0.06em;
  text-transform: small-caps;
  position: relative;
}

.hero__title::after {
  content: '';
  display: block;
  width: 72px;
  height: 3px;
  background-color: var(--color-accent);
  margin: 16px auto 0;
  border-radius: 2px;
}

.hero__subtitle {
  margin-top: 16px;
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.75);
  letter-spacing: 0.02em;
  position: relative;
}

/* ============================================================
   MAIN / FORMULARIO
   ============================================================ */
.main {
  padding: 56px 0 72px;
}

/* --- Tarjeta del formulario --- */
.form-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 48px 52px;
  max-width: 820px;
  margin: 0 auto;
  border-top: 4px solid var(--color-accent);
}

.form-card__header {
  text-align: center;
  margin-bottom: 40px;
}

.form-card__icon {
  font-size: 2.4rem;
  color: var(--color-accent);
  margin-bottom: 12px;
  display: block;
}

.form-card__title {
  font-family: var(--font-title);
  font-size: 1.5rem;
  color: var(--color-primary);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* --- Layout del formulario --- */
.form {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

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

.form__group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form__group--full { grid-column: 1 / -1; }

/* --- Labels --- */
.form__label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.form__required { color: var(--color-accent); }

/* --- Inputs --- */
.form__input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.form__icon {
  position: absolute;
  left: 14px;
  color: var(--color-primary-mid);
  font-size: 0.9rem;
  pointer-events: none;
  transition: color var(--transition);
  z-index: 1;
}

.form__icon--right {
  left: auto;
  right: 14px;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.form__input {
  width: 100%;
  padding: 12px 14px 12px 42px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-text);
  background-color: var(--color-bg);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition), background-color var(--transition);
}

.form__input::placeholder { color: var(--color-text-muted); }

/* Hover */
.form__input:hover {
  border-color: var(--color-primary-mid);
  background-color: var(--color-white);
}

/* Focus */
.form__input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 4px rgba(201, 168, 76, 0.15);
  background-color: var(--color-white);
}

.form__input:focus + .form__icon,
.form__input-wrap:focus-within .form__icon:not(.form__icon--right) {
  color: var(--color-accent);
}

/* Select */
.form__select {
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  padding-right: 36px;
}

.form__input-wrap--select .form__icon--right {
  pointer-events: none;
}

/* Input type=date */
input[type="date"].form__input {
  color: var(--color-text);
}

/* Validación */
.form__input:valid:not(:placeholder-shown) {
  border-color: var(--color-success);
}

/* --- Checkbox --- */
.form__group--checkbox { margin-top: 4px; }

.form__checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
  line-height: 1.5;
}

.form__checkbox { display: none; }

.form__checkbox-custom {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-border);
  border-radius: 4px;
  background-color: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
  transition: border-color var(--transition), background-color var(--transition);
}

.form__checkbox-custom::after {
  content: '';
  width: 10px;
  height: 6px;
  border-left: 2px solid var(--color-white);
  border-bottom: 2px solid var(--color-white);
  transform: rotate(-45deg) translateY(-1px);
  opacity: 0;
  transition: opacity var(--transition);
}

.form__checkbox:checked + .form__checkbox-custom {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
}

.form__checkbox:checked + .form__checkbox-custom::after { opacity: 1; }

.form__checkbox-label:hover .form__checkbox-custom {
  border-color: var(--color-accent);
}

.form__checkbox-text {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.form__link {
  color: var(--color-primary);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition);
}

.form__link:hover { color: var(--color-accent); }

/* --- Botón enviar --- */
.btn-submit {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  padding: 16px 32px;
  background-color: var(--color-primary);
  color: var(--color-white);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition),
              border-color var(--transition), box-shadow var(--transition),
              transform var(--transition);
  margin-top: 8px;
}

.btn-submit:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.btn-submit:active {
  transform: translateY(0);
  box-shadow: none;
}

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

/* ============================================================
   PIE DE PÁGINA
   ============================================================ */
.footer {
  background-color: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.75);
  padding-top: 56px;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr 1.5fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__heading {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 20px;
}

.footer__text {
  font-size: 0.88rem;
  line-height: 1.7;
  margin-bottom: 24px;
}

/* Redes sociales */
.footer__social {
  display: flex;
  gap: 10px;
}

.footer__social-link {
  width: 36px;
  height: 36px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.7);
  transition: background-color var(--transition), border-color var(--transition), color var(--transition);
}

.footer__social-link:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-primary);
}

/* Listas */
.footer__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer__link {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition), padding-left var(--transition);
}

.footer__link:hover {
  color: var(--color-accent);
  padding-left: 6px;
}

/* Lista de contacto */
.footer__list--contact li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.88rem;
}

.footer__list--contact i {
  color: var(--color-accent);
  margin-top: 3px;
  flex-shrink: 0;
  width: 14px;
  text-align: center;
}

/* Horarios */
.footer__schedule {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 0.88rem;
}

.footer__schedule-day {
  font-weight: 600;
  color: var(--color-white);
}

.footer__schedule-hours { color: var(--color-accent); }

/* Bottom bar */
.footer__bottom {
  padding: 18px 0;
  text-align: center;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* Tablet (≤ 900px) */
@media (max-width: 900px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .form-card { padding: 36px 32px; }
}

/* Móvil grande (≤ 680px) */
@media (max-width: 680px) {
  .header__inner  { flex-direction: column; align-items: flex-start; }
  .header__contact { align-items: flex-start; }

  .nav__link { padding: 12px 14px; font-size: 0.75rem; letter-spacing: 0.06em; }

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

  .form-card { padding: 28px 20px; }
  .form-card__title { font-size: 1.2rem; }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

/* Móvil pequeño (≤ 400px) */
@media (max-width: 400px) {
  .hero__title { font-size: 1.4rem; letter-spacing: 0.04em; }
  .btn-submit  { font-size: 0.85rem; padding: 14px 20px; }
}