/* ============================================
   Landing Page — Clean, Light, Premium
   No grey backgrounds
   ============================================ */

/* --- Header --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 253, 0.98);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(19, 15, 16, 0.06);
  transition: box-shadow 0.3s ease;
}

.header.scrolled {
  box-shadow: 0 2px 20px rgba(19, 15, 16, 0.06);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-md);
  min-height: 64px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition);
}

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

.logo__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.logo__icon img,
.logo__icon svg {
  width: 40px;
  height: 40px;
  border-radius: 8px;
}

.logo__text {
  line-height: 1;
}

.nav {
  display: none;
}

.nav__link {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-weight: 500;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius);
  transition: color var(--transition), background-color var(--transition);
}

.nav__link:hover {
  color: var(--color-accent);
  background-color: rgba(247, 81, 57, 0.06);
}

.header__menu-btn {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}

.header__menu-btn span {
  width: 24px;
  height: 2px;
  background: var(--color-dark);
  border-radius: 1px;
  transition: transform var(--transition), opacity var(--transition);
}

.header__menu-btn.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.header__menu-btn.active span:nth-child(2) {
  opacity: 0;
}

.header__menu-btn.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile menu overlay */
.nav-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(19, 15, 16, 0.5);
  z-index: 98;
  transition: opacity 0.3s ease;
}

.nav-overlay.visible {
  display: block;
}

@media (min-width: 768px) {
  .nav-overlay {
    display: none !important;
  }
}

@media (max-width: 767px) {
  .nav-overlay.visible {
    display: block;
  }

  .nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    bottom: 0;
    min-height: calc(100vh - 64px);
    background-color: #FFFFFD !important;
    background-image: none !important;
    padding: var(--space-xl);
    flex-direction: column;
    justify-content: flex-start;
    align-items: stretch;
    gap: var(--space-md);
    z-index: 999;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    box-shadow: -4px 0 24px rgba(19, 15, 16, 0.15);
  }

  .nav.open {
    display: flex;
    transform: translateX(0);
  }

  .nav .nav__link {
    font-size: var(--text-lg);
    padding: var(--space-md);
  }
}

@media (min-width: 768px) {
  .nav {
    display: flex;
    flex-direction: row;
    gap: var(--space-xs);
    position: static;
    padding: 0;
    background: transparent;
    transform: none;
  }

  .nav.open {
    transform: none;
  }

  .header__menu-btn {
    display: none;
  }
}

/* --- Hero --- */
.hero {
  padding: calc(64px + var(--space-2xl)) var(--space-md) var(--space-2xl);
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(180deg, #FFFFFD 0%, rgba(73, 149, 146, 0.06) 50%, #FFFFFD 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 60%;
  height: 120%;
  background: radial-gradient(ellipse, rgba(73, 149, 146, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero__grid {
  display: grid;
  gap: var(--space-xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero__content {
  order: 1;
}

.hero__content .hero__title {
  animation: fadeInUp 0.8s ease 0.1s forwards;
  opacity: 0;
}

.hero__content .hero__text {
  animation: fadeInUp 0.8s ease 0.3s forwards;
  opacity: 0;
}

.hero__content .btn {
  animation: fadeInUp 0.8s ease 0.5s forwards;
  opacity: 0;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2.25rem, 8vw, 3.75rem);
  line-height: 1.05;
  margin-bottom: var(--space-lg);
  color: var(--color-dark);
  letter-spacing: -0.02em;
}

.hero__title-line {
  display: block;
}

.hero__text {
  font-size: var(--text-lg);
  margin-bottom: var(--space-xl);
  max-width: 440px;
  color: var(--color-text-secondary);
}

.hero__visual {
  order: 0;
  display: flex;
  justify-content: center;
}

.hero__phone {
  max-width: 280px;
  overflow: hidden;
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.hero__phone:hover {
  transform: scale(1.03) translateY(-8px);
  box-shadow: 0 32px 64px rgba(19, 15, 16, 0.14), 0 12px 32px rgba(73, 149, 146, 0.2);
}

.hero__screenshot {
  width: 100%;
  height: auto;
  display: block;
}

@media (min-width: 768px) {
  .hero__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
  }

  .hero__content {
    order: 0;
  }

  .hero__visual {
    order: 1;
  }

  .hero__phone {
    max-width: 340px;
  }
}

/* --- Stats --- */
.stats {
  background: var(--color-white);
  padding: var(--space-2xl) var(--space-md);
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

.stats__item {
  text-align: center;
  padding: var(--space-xl);
  background: var(--color-white);
  border-radius: var(--radius);
  box-shadow: 0 2px 12px rgba(19, 15, 16, 0.06);
  border: 1px solid rgba(19, 15, 16, 0.04);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stats__item:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(19, 15, 16, 0.08);
}

.stats__number {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}

.stats__label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

@media (min-width: 480px) {
  .stats__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* --- Section --- */
.section {
  padding: var(--space-2xl) var(--space-md);
  background: var(--color-white);
}

.section--alt {
  background: linear-gradient(180deg, rgba(73, 149, 146, 0.04) 0%, rgba(255, 255, 253, 1) 100%);
}

.section-title {
  text-align: center;
}

.section__intro {
  font-size: var(--text-lg);
  margin-bottom: var(--space-xl);
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
  color: var(--color-text-secondary);
}

/* --- Steps (Cómo funciona) --- */
.steps {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  justify-content: center;
  gap: var(--space-md);
  max-width: 900px;
  margin: 0 auto;
}

.step {
  flex: 1;
  min-width: 200px;
  max-width: 260px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-xl);
  min-height: 240px;
}

.step__icon {
  width: 64px;
  height: 64px;
  margin-bottom: var(--space-md);
  color: var(--color-primary);
  flex-shrink: 0;
}

.step__icon svg {
  width: 100%;
  height: 100%;
}

.step__title {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  color: var(--color-accent);
  margin: 0 0 var(--space-sm);
  flex-shrink: 0;
}

.step__text {
  margin: 0;
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: 1.5;
  max-width: 240px;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step__arrow {
  display: none;
  align-self: center;
  width: 32px;
  height: 32px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.step__arrow svg {
  width: 100%;
  height: 100%;
}

@media (min-width: 768px) {
  .steps {
    flex-wrap: nowrap;
    gap: var(--space-lg);
  }

  .step__arrow {
    display: block;
  }
}

/* --- Features --- */
.features {
  display: grid;
  gap: var(--space-xl);
}

.feature {
  overflow: hidden;
  border-radius: var(--radius);
  box-shadow: 0 2px 16px rgba(19, 15, 16, 0.06);
  border: 1px solid rgba(19, 15, 16, 0.04);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  text-align: center;
}

.feature .card-title {
  text-align: center;
  font-size: var(--text-2xl);
  margin-bottom: var(--space-lg);
}

.feature p {
  text-align: center;
  font-size: var(--text-base);
}

.feature:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(19, 15, 16, 0.1);
}

.feature__icon {
  margin: calc(-1 * var(--space-lg)) calc(-1 * var(--space-lg)) var(--space-md);
  overflow: hidden;
  border-radius: var(--radius) var(--radius) 0 0;
}

.feature__icon img {
  width: 100%;
  height: auto;
  max-height: 260px;
  object-fit: contain;
  object-position: center bottom;
}

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

/* --- Example card --- */
.example-card {
  max-width: 640px;
  margin: 0 auto;
  box-shadow: 0 4px 24px rgba(19, 15, 16, 0.08);
  border: 1px solid rgba(19, 15, 16, 0.04);
}


.example-card__grid {
  display: grid;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.example-card__item {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.example-card__label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.example-card__value {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
}

.example-card__terms h4 {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.example-card__terms ul {
  margin: 0;
  padding-left: var(--space-lg);
  color: var(--color-text-secondary);
}

.example-card__terms li {
  margin-bottom: var(--space-sm);
}

@media (min-width: 480px) {
  .example-card__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* --- Screenshots --- */
.screenshots {
  display: grid;
  gap: var(--space-xl);
}

.screenshot {
  max-width: 320px;
  margin: 0 auto;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(19, 15, 16, 0.1);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.screenshot:hover {
  transform: scale(1.02);
  box-shadow: 0 12px 40px rgba(19, 15, 16, 0.12);
}

.screenshot img {
  width: 100%;
  height: auto;
  display: block;
}

@media (min-width: 768px) {
  .screenshots {
    grid-template-columns: repeat(3, 1fr);
    max-width: 900px;
    margin: 0 auto;
  }
}

/* --- CTA --- */
.cta {
  padding: var(--space-2xl) var(--space-md);
  min-height: 420px;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, #3a6f6d 100%);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  top: -30%;
  left: -20%;
  width: 80%;
  height: 160%;
  background: radial-gradient(ellipse, rgba(255,255,255,0.08) 0%, transparent 60%);
  pointer-events: none;
}

.cta__content {
  display: grid;
  gap: var(--space-xl);
  align-items: stretch;
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.cta__visual {
  display: flex;
  justify-content: flex-start;
  align-items: flex-end;
  align-self: flex-end;
  margin-bottom: -4rem;
}

.cta__mascot {
  max-width: 320px;
  width: 100%;
  height: auto;
  max-height: 420px;
  filter: drop-shadow(0 12px 24px rgba(0,0,0,0.2));
  object-fit: contain;
  object-position: left bottom;
  display: block;
}

.cta__text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
}

.cta__title {
  color: var(--color-white);
  margin-bottom: var(--space-md);
  text-align: center;
}

.cta__text p {
  color: rgba(255, 255, 253, 0.92);
  margin-bottom: var(--space-lg);
}

.cta__text .btn {
  background: var(--color-white);
  color: var(--color-primary);
}

.cta__text .btn:hover {
  background: rgba(255, 255, 253, 0.95);
  color: var(--color-primary);
  transform: translateY(-2px);
}

@media (min-width: 768px) {
  .cta {
    min-height: 480px;
    padding: var(--space-2xl) var(--space-md);
  }

  .cta__content {
    grid-template-columns: 1fr 1fr;
    align-items: stretch;
    max-width: 1000px;
  }

  .cta__visual {
    margin-bottom: -4rem;
  }

  .cta__mascot {
    max-width: 420px;
    max-height: 520px;
  }

  .cta__text .btn {
    justify-content: center;
  }
}

/* --- Contact --- */
.contact-form__intro {
  margin-bottom: var(--space-lg);
  color: var(--color-text-secondary);
  text-align: center;
}

.form-message {
  margin-bottom: var(--space-md);
  border-radius: var(--radius);
  font-size: var(--text-sm);
}

.form-message--success {
  background: rgba(73, 149, 146, 0.15);
  color: var(--color-primary);
}

.form-message--error {
  background: rgba(247, 81, 57, 0.15);
  color: var(--color-error);
}


.contact__grid {
  display: grid;
  gap: var(--space-xl);
}

.contact-form {
  max-width: 480px;
}

.contact__info {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.contact-form__btn {
  padding: 1rem;
  margin-top: var(--space-xs);
  margin-left: auto;
  margin-right: auto;
  font-size: var(--text-sm);
  width: 50%;
  display: block;
}

.contact-card {
  padding: var(--space-md) var(--space-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-sm);
}

.contact-card__icon {
  width: 24px;
  height: 24px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.contact-card__icon svg {
  width: 100%;
  height: 100%;
}

.contact-card__label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.contact-card__value {
  font-weight: 600;
  font-size: var(--text-base);
  color: var(--color-text);
}

.contact-card__link {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}

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

@media (min-width: 768px) {
  .contact__grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }

  .contact-form {
    max-width: none;
  }
}

/* --- Footer --- */
.footer {
  background: var(--color-dark);
  color: var(--color-white);
  padding: var(--space-2xl) var(--space-md);
}

.footer__content {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.footer__logo {
  color: var(--color-white);
}

.footer__logo .logo__icon img,
.footer__logo .logo__icon svg {
  width: 32px;
  height: 32px;
}

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

.footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer__nav a {
  color: rgba(255, 255, 253, 0.7);
  text-decoration: none;
  font-size: var(--text-sm);
  transition: color var(--transition);
}

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

.footer__disclaimer {
  padding: var(--space-lg) 0;
  border-top: 1px solid rgba(255, 255, 253, 0.1);
  border-bottom: 1px solid rgba(255, 255, 253, 0.1);
  margin-bottom: var(--space-lg);
}

.footer__disclaimer p {
  font-size: var(--text-sm);
  color: rgba(255, 255, 253, 0.65);
  margin: 0;
  line-height: 1.65;
}

.footer__copy .caption {
  color: rgba(255, 255, 253, 0.5);
  margin: 0;
}

/* --- Reveal animation --- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal:nth-child(1) { transition-delay: 0.05s; }
.reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal:nth-child(3) { transition-delay: 0.15s; }
.reveal:nth-child(4) { transition-delay: 0.2s; }
.reveal:nth-child(5) { transition-delay: 0.25s; }
.reveal:nth-child(6) { transition-delay: 0.3s; }