/* ==========================================================================
   Design tokens
   ========================================================================== */
:root {
  --color-bg: #F7F5F1;
  --color-bg-alt: #FFFFFF;
  --color-ink: #1B1A18;
  --color-ink-soft: #4A4843;
  --color-gray: #8A867D;
  --color-border: #E4E0D8;
  --color-accent: #FF5A1F;
  --color-accent-dark: #E2470F;
  --color-accent-soft: #FFE4D6;

  --font-display: "Space Grotesk", "Inter", sans-serif;
  --font-body: "Inter", sans-serif;

  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 48px;
  --space-6: 64px;
  --space-7: 96px;

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 28px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-fast: 200ms;
  --dur-med: 350ms;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

body.is-loading { overflow: hidden; }

/* ==========================================================================
   Loading screen — "Igor.pro" typing on, then fading out
   ========================================================================== */
.loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  opacity: 1;
  visibility: visible;
  transition: opacity 500ms ease;
}

.loader.is-done {
  opacity: 0;
  visibility: hidden;
  transition: opacity 500ms ease, visibility 0s linear 500ms;
}

.loader__text {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2rem, 6vw, 3.25rem);
  letter-spacing: -0.02em;
  color: var(--color-ink);
  clip-path: inset(0 100% 0 0);
  animation: loader-reveal 1.8s cubic-bezier(0.65, 0, 0.35, 1) forwards;
}

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

@keyframes loader-reveal {
  to { clip-path: inset(0 0 0 0); }
}

@media (prefers-reduced-motion: reduce) {
  .loader__text {
    clip-path: inset(0 0 0 0);
    animation: none;
  }
}

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

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ==========================================================================
   Nav
   ========================================================================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-5);
  background: rgba(247, 245, 241, 0.75);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.nav__brand {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 20px;
  letter-spacing: -0.02em;
}

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

.nav__links {
  display: flex;
  gap: var(--space-4);
}

.nav__links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-ink-soft);
  transition: color var(--dur-fast) var(--ease-out);
}

.nav__links a:hover,
.nav__links a:focus-visible { color: var(--color-accent); }

@media (max-width: 640px) {
  .nav { padding: var(--space-2) var(--space-3); }
  .nav__links { gap: var(--space-3); }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: 0 var(--space-5);
  max-width: 1100px;
  margin: 0 auto;
}

.hero__eyebrow {
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  margin: 0 0 var(--space-3);
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  max-width: 18ch;
  margin: 0 0 var(--space-3);
}

.hero__subtitle {
  font-size: clamp(1rem, 1.6vw, 1.25rem);
  color: var(--color-ink-soft);
  max-width: 42ch;
  margin: 0 0 var(--space-6);
}

.hero__scroll-hint {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-gray);
  animation: bob 2.2s ease-in-out infinite;
}

@keyframes bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

/* ==========================================================================
   Value — "O que você leva"
   ========================================================================== */
.value {
  padding: var(--space-7) var(--space-5);
  max-width: 1100px;
  margin: 0 auto;
  border-top: 1px solid var(--color-border);
}

.value__eyebrow {
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  margin: 0 0 var(--space-2);
  text-align: center;
}

.value__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  letter-spacing: -0.02em;
  max-width: 24ch;
  margin: 0 auto var(--space-6);
  text-align: center;
}

.value__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-4);
}

.value__grid--three {
  grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 820px) {
  .value__grid--three {
    grid-template-columns: 1fr;
  }
}

.value__item {
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-alt);
}

.value__item-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.01em;
  margin: 0 0 var(--space-2);
}

.value__item-title::before {
  content: "";
  display: block;
  width: 20px;
  height: 3px;
  border-radius: 2px;
  background: var(--color-accent);
  margin-bottom: var(--space-2);
}

.value__item-text {
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--color-ink-soft);
  margin: 0;
}

@media (max-width: 640px) {
  .value { padding: var(--space-6) var(--space-3); }
}

/* ==========================================================================
   Work intro — "Alguns dos sites"
   ========================================================================== */
.work-intro {
  padding: var(--space-7) var(--space-5) var(--space-4);
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
}

.work-intro__eyebrow {
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  margin: 0 0 var(--space-2);
}

.work-intro__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-2);
}

.work-intro__text {
  font-size: 16px;
  color: var(--color-ink-soft);
  max-width: 52ch;
  margin: 0 auto;
}

/* ==========================================================================
   404 error page
   ========================================================================== */
.error {
  position: relative;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 0 var(--space-5);
  max-width: 640px;
  margin: 0 auto;
}

.error__code {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(4rem, 12vw, 8rem);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--color-accent);
  margin: 0 0 var(--space-2);
}

.error__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-3);
}

.error__text {
  font-size: 1rem;
  color: var(--color-ink-soft);
  max-width: 46ch;
  margin: 0 0 var(--space-5);
}

/* ==========================================================================
   Stacking cards
   ========================================================================== */
.stack {
  position: relative;
}

.stack__card {
  position: sticky;
  top: 0;
  height: 100dvh;
  display: flex;
  align-items: center;
  padding: var(--space-6) var(--space-5);
}

.card {
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 60px -24px rgba(27, 26, 24, 0.18);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform-origin: top center;
  transition: transform var(--dur-med) var(--ease-out), filter var(--dur-med) var(--ease-out);
  will-change: transform;
}

.card__media {
  position: relative;
  background: var(--color-ink);
  aspect-ratio: 2 / 1;
  max-height: 42vh;
  flex-shrink: 0;
}

.card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
}

.card__media-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-3);
  color: rgba(255, 255, 255, 0.4);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
  background:
    repeating-linear-gradient(45deg, rgba(255,255,255,0.04) 0 2px, transparent 2px 14px),
    linear-gradient(160deg, #24221F 0%, #171614 100%);
}

.card__media-placeholder::before {
  content: attr(data-placeholder);
  border: 1px dashed rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-3);
}

.card__content {
  padding: var(--space-4) var(--space-5) var(--space-5);
  display: flex;
  flex-direction: column;
  justify-content: center;
  flex: 1;
  min-height: 0;
  overflow: auto;
}

.card__tag {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-2);
}

.card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 2.4vw, 2rem);
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-2);
}

.card__text {
  color: var(--color-ink-soft);
  font-size: 15px;
  max-width: 60ch;
  margin: 0 0 var(--space-4);
}

/* depth effect applied via JS as cards stack underneath */
.stack__card.is-stacked .card {
  transform: scale(0.94) translateY(-8px);
  filter: brightness(0.85);
}

@media (max-width: 900px) {
  .stack__card { padding: var(--space-3); align-items: flex-start; padding-top: 96px; height: auto; min-height: 100dvh; }
  .card__media { max-height: 30vh; }
  .card__content { padding: var(--space-4); }
}

/* ==========================================================================
   Glowing CTA button
   ========================================================================== */
.btn-glow {
  --btn-bg: var(--color-ink);
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 14px 24px;
  border-radius: 999px;
  background: var(--btn-bg);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
  isolation: isolate;
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-out);
}

.btn-glow:hover,
.btn-glow:focus-visible {
  transform: translateY(-2px);
}

.btn-glow svg {
  transition: transform var(--dur-fast) var(--ease-out);
}

.btn-glow:hover svg { transform: translate(2px, -2px); }

.cta-final .btn-glow {
  --btn-bg: var(--color-bg);
  color: var(--color-ink);
}

.btn-glow--lg {
  padding: 18px 32px;
  font-size: 17px;
}

/* ==========================================================================
   Process — "Como funciona"
   ========================================================================== */
.process {
  position: relative;
  z-index: 10;
  background: var(--color-bg);
  padding: var(--space-7) var(--space-5);
  max-width: 1100px;
  margin: 0 auto;
}

.process__eyebrow {
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  margin: 0 0 var(--space-2);
  text-align: center;
}

.process__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  letter-spacing: -0.02em;
  text-align: center;
  margin: 0 0 var(--space-6);
}

.process__steps {
  position: relative;
  display: flex;
  gap: var(--space-4);
}

/* dashed flow line connecting the step nodes (horizontal on desktop) */
.process__steps::before {
  content: "";
  position: absolute;
  z-index: 0;
  top: 22px;
  left: 12.5%;
  right: 12.5%;
  border-top: 2px dashed var(--color-hairline-strong, #C8C4BE);
}

.process__step {
  position: relative;
  z-index: 1;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-3);
}

.process__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  box-shadow: 0 0 0 8px var(--color-bg);
}

.process__step-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.01em;
  margin: 0 0 var(--space-2);
}

.process__step-text {
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--color-ink-soft);
  margin: 0;
}

@media (max-width: 800px) {
  .process { padding: var(--space-6) var(--space-3); }

  .process__steps {
    flex-direction: column;
    gap: var(--space-5);
    padding-left: var(--space-2);
  }

  /* dashed flow line runs vertically through the node centers */
  .process__steps::before {
    top: 22px;
    bottom: 22px;
    left: 22px;
    right: auto;
    border-top: none;
    border-left: 2px dashed var(--color-hairline-strong, #C8C4BE);
  }

  .process__step {
    flex-direction: row;
    align-items: flex-start;
    text-align: left;
    gap: var(--space-3);
  }

  .process__number {
    flex-shrink: 0;
    box-shadow: 0 0 0 6px var(--color-bg);
  }
}

/* ==========================================================================
   Final CTA
   ========================================================================== */
.cta-final {
  position: relative;
  z-index: 10;
  background: var(--color-ink);
  color: var(--color-bg);
  text-align: center;
  padding: var(--space-7) var(--space-5);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}

.cta-final__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.02em;
  margin: 0;
}

.cta-final__text {
  color: rgba(247, 245, 241, 0.7);
  margin: 0 0 var(--space-2);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  position: relative;
  z-index: 10;
  background: var(--color-ink);
  color: rgba(247, 245, 241, 0.5);
  text-align: center;
  font-size: 13px;
  padding: var(--space-3);
  border-top: 1px solid rgba(247, 245, 241, 0.1);
}