/* ============================================
   KORVY — Design System
   ============================================ */

:root {
  --color-lime: #C6FF00;
  --color-lime-hover: #B0E600;
  --color-charcoal: #2A2A2A;
  --color-bg: #0A0A0A;
  --color-bg-elevated: #111111;
  --color-grey: #BFBFBF;
  --color-text: #FFFFFF;
  --color-on-lime: #0A0A0A;
  --color-primary: var(--color-lime);
  --color-primary-hover: var(--color-lime-hover);
  --color-text-muted: var(--color-grey);
  --color-bg-card: var(--color-charcoal);
  --color-border: rgba(191, 191, 191, 0.22);
  --color-whatsapp: #25D366;
  --color-header-bg: var(--color-bg);

  --font-family: 'Sora', sans-serif;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 10px;
  --radius-pill: 999px;

  --header-height: 72px;
  --container-max: 1140px;
  --transition: 0.2s ease;
}

[data-theme="light"] {
  --color-bg: #F5F5F2;
  --color-bg-elevated: #FFFFFF;
  --color-charcoal: #E8E8E4;
  --color-bg-card: #FFFFFF;
  --color-text: #1A1A1A;
  --color-grey: #5C5C5C;
  --color-text-muted: #5C5C5C;
  --color-border: rgba(26, 26, 26, 0.12);
  --color-header-bg: #F5F5F2;
  --color-lime: #8FBF00;
  --color-lime-hover: #7AA600;
  --color-primary: var(--color-lime);
  --color-primary-hover: var(--color-lime-hover);
  --color-on-lime: #0A0A0A;
  color-scheme: light;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
  color-scheme: dark;
}

body {
  font-family: var(--font-family);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

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

.text-lime {
  color: var(--color-lime);
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-pill);
  font-weight: 500;
  font-size: 0.9375rem;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition);
  border: 1px solid transparent;
}

.btn--primary {
  background: var(--color-lime);
  color: var(--color-on-lime);
}

.btn--primary:hover {
  background: var(--color-lime-hover);
  color: var(--color-on-lime);
}

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

.btn--outline:hover {
  border-color: var(--color-lime);
  color: var(--color-text);
}

[data-theme="light"] .btn--outline {
  color: var(--color-text);
  border-color: var(--color-text);
}

[data-theme="light"] .btn--outline:hover {
  border-color: var(--color-lime);
  color: var(--color-text);
}

.btn--block {
  width: 100%;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  background: var(--color-header-bg);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}

.header--scrolled {
  border-bottom-color: var(--color-border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  font-weight: 800;
  font-size: 1.125rem;
  flex-shrink: 0;
}

.logo__img {
  display: block;
  height: 36px;
  width: auto;
}

.logo__text {
  color: var(--color-text);
  font-weight: 800;
  letter-spacing: 0.06em;
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-pill);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.theme-toggle:hover {
  border-color: var(--color-lime);
  color: var(--color-lime);
}

.theme-toggle__icon--moon {
  display: none;
}

[data-theme="light"] .theme-toggle__icon--sun {
  display: none;
}

[data-theme="light"] .theme-toggle__icon--moon {
  display: block;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav__link {
  padding: 0.5rem 0.875rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  transition: color var(--transition), background var(--transition);
}

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

.nav__link--cta {
  background: var(--color-lime);
  color: var(--color-on-lime);
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-pill);
}

.nav__link--cta:hover,
.nav__link--cta.active {
  background: var(--color-lime-hover);
  color: var(--color-on-lime);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.menu-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Hero */
.hero {
  padding: calc(var(--header-height) + 4rem) 0 3.5rem;
}

.hero__title {
  font-size: clamp(1.875rem, 4vw, 2.5rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--color-text);
  margin-bottom: 1.25rem;
}

.hero__subtitle {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.hero__note {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero__actions .btn--primary {
  padding: 1rem 2rem;
  font-size: 1.0625rem;
}

/* Features — 3 fatos, sem ícones */
.features {
  padding: 0 0 4rem;
}

.features__list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem 2rem;
  padding: 2rem 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.features__item {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-left: 0.875rem;
  border-left: 2px solid var(--color-lime);
}

.features__label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
}

/* Sections */
.section {
  padding: 4.5rem 0;
}

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

.section__header {
  max-width: 640px;
  margin: 0 0 2.75rem;
}

.section__tag {
  display: inline-block;
  color: var(--color-text-muted);
  font-size: 0.75rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.section__title {
  font-size: clamp(1.5rem, 3vw, 1.75rem);
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.section__subtitle {
  color: var(--color-text-muted);
  font-size: 1rem;
}

/* Services */
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
  align-items: start;
}

.service-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  position: relative;
}

.service-card:hover {
  border-color: rgba(191, 191, 191, 0.4);
}

.service-card--featured {
  border: 1px solid var(--color-lime);
  box-shadow: none;
}

.service-card--featured:hover {
  border-color: var(--color-lime);
}

.service-card__name {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.service-card__desc {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
}

.service-card__price {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.service-card__price strong {
  font-size: 1.5rem;
  color: var(--color-text);
  display: block;
  margin-top: 0.25rem;
}

.service-card__list {
  margin-bottom: 2rem;
}

.service-card__list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.625rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.service-card__list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-text-muted);
  font-weight: 500;
}

/* Process */
.process__timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  position: relative;
}

.process__timeline::before {
  content: '';
  position: absolute;
  top: 28px;
  left: 12.5%;
  right: 12.5%;
  height: 1px;
  background: var(--color-border);
}

.process-step {
  text-align: center;
  position: relative;
}

.process-step__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  font-size: 1rem;
  font-weight: 800;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
  position: relative;
  z-index: 1;
}

.process-step__title {
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.process-step__text {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* Contact */
.contact__channels {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 32rem;
  margin: 0 auto;
}

.contact-channel {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition);
}

.contact-channel:hover {
  border-color: rgba(191, 191, 191, 0.4);
}

.contact-channel__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-channel__icon--whatsapp {
  background: rgba(37, 211, 102, 0.15);
  color: var(--color-whatsapp);
}

.contact-channel__icon--email {
  background: var(--color-bg);
  color: var(--color-text-muted);
}

.contact-channel__label {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.contact-channel__value {
  font-weight: 500;
  font-size: 0.9375rem;
}

.contact__info {
  margin-top: 0.5rem;
  padding: 1rem;
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.contact__info p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

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

.contact__info strong {
  color: var(--color-text);
}

/* Footer */
.footer {
  border-top: 1px solid var(--color-border);
  padding: 3.25rem 0 2rem;
}

.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2rem;
  align-items: start;
}

.footer .logo__img {
  height: 32px;
  width: auto;
}

.footer__tagline {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  margin-top: 0.75rem;
}

.footer__tagline .text-lime {
  color: var(--color-lime);
}

.footer__slogan {
  color: var(--color-text-muted);
  font-size: 0.8125rem;
  font-weight: 400;
  margin-top: 0.5rem;
  letter-spacing: 0.01em;
}

.footer__nav {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer__nav a {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

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

.footer__copy {
  grid-column: 1 / -1;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
  margin-top: 1rem;
}

/* Responsive */
@media (max-width: 1024px) {
  .services__grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }

  .process__timeline {
    grid-template-columns: repeat(2, 1fr);
  }

  .process__timeline::before {
    display: none;
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }

  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 1.5rem;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.3s ease, opacity 0.3s ease, visibility 0.3s;
  }

  .nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav__list {
    flex-direction: column;
    align-items: stretch;
  }

  .nav__link {
    padding: 0.75rem 1rem;
  }

  .nav__link--cta {
    text-align: center;
  }

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

  .hero__actions {
    justify-content: flex-start;
  }

  .process__timeline {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }

  .footer__inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer__nav {
    align-items: center;
  }

  .footer .logo {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .features__list {
    grid-template-columns: 1fr;
  }

  .hero__actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero__actions .btn--primary {
    width: 100%;
  }

  .hero__actions .btn--outline {
    width: auto;
  }
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(1.25rem);
  transition: opacity 500ms ease-out, transform 500ms ease-out;
  transition-delay: var(--reveal-delay, 0ms);
}

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

.features__list > *:nth-child(1),
.services__grid > *:nth-child(1),
.process__timeline > *:nth-child(1),
.contact__channels > *:nth-child(1) {
  --reveal-delay: 0ms;
}

.features__list > *:nth-child(2),
.services__grid > *:nth-child(2),
.process__timeline > *:nth-child(2),
.contact__channels > *:nth-child(2) {
  --reveal-delay: 80ms;
}

.features__list > *:nth-child(3),
.services__grid > *:nth-child(3),
.process__timeline > *:nth-child(3),
.contact__channels > *:nth-child(3) {
  --reveal-delay: 160ms;
}

.features__list > *:nth-child(n + 4),
.services__grid > *:nth-child(n + 4),
.process__timeline > *:nth-child(n + 4),
.contact__channels > *:nth-child(n + 4) {
  --reveal-delay: 240ms;
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
    transition-delay: 0ms;
  }
}