/* ==========================================================================
   Thaís Hipólito — Fotografia Infantil
   CSS único, mobile-first, sem dependências externas além das fontes.
   ========================================================================== */

:root{
  --navy:#07172B;
  --graphite:#101820;
  --cyan:#2EC9D4;
  --cyan-dark:#1FA7B1;
  --white:#FFFFFF;
  --gray-on-dark:#AAB6C2;
  --gray-on-light:#57626D;
  --bg-light:#F3F5F7;
  --line-on-dark:rgba(255,255,255,.14);
  --line-on-light:rgba(7,23,43,.10);

  --font-display:'Fraunces', Georgia, 'Times New Roman', serif;
  --font-body:'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --container:1180px;
  --gutter:clamp(20px, 5vw, 48px);
  --radius:3px;
  --nav-height:76px;
}

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

html{
  scroll-behavior:smooth;
  scroll-padding-top: calc(var(--nav-height) + 12px);
}

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

body{
  margin:0;
  font-family:var(--font-body);
  color:var(--navy);
  background:var(--white);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

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

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

button{ font:inherit; cursor:pointer; }

.container{
  width:100%;
  max-width:var(--container);
  margin-inline:auto;
  padding-inline:var(--gutter);
}

h1,h2,h3{
  font-family:var(--font-display);
  font-weight:600;
  line-height:1.12;
  margin:0 0 .5em;
  letter-spacing:-0.01em;
}

h1{ font-size:clamp(2.1rem, 5.6vw, 3.6rem); }
h2{ font-size:clamp(1.6rem, 4vw, 2.4rem); }
h3{ font-size:clamp(1.15rem, 2.6vw, 1.4rem); }

p{ margin:0 0 1em; max-width:62ch; }

.section{ padding-block:clamp(56px, 9vw, 108px); }
.section--tight{ padding-block:clamp(40px, 6vw, 72px); }

.section--dark{ background:var(--navy); color:var(--white); }
.section--graphite{ background:var(--graphite); color:var(--white); }
.section--light{ background:var(--bg-light); color:var(--navy); }

.section--dark p, .section--graphite p{ color:var(--gray-on-dark); }
.section--light p{ color:var(--gray-on-light); }

.eyebrow{
  display:inline-block;
  font-size:.8rem;
  color:var(--cyan);
  font-weight:600;
  margin-bottom:.9em;
}

.lede{
  font-size:clamp(1.02rem, 2vw, 1.18rem);
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:.55em;
  padding:.85em 1.5em;
  border-radius:var(--radius);
  font-weight:600;
  font-size:.98rem;
  border:1px solid transparent;
  transition:background-color .18s ease, color .18s ease, border-color .18s ease, transform .18s ease;
  white-space:nowrap;
}
.btn:active{ transform:translateY(1px); }

.btn--primary{
  background:var(--cyan);
  color:var(--navy);
}
.btn--primary:hover{ background:var(--white); }

.btn--outline-dark{
  border-color:var(--line-on-dark);
  color:var(--white);
}
.btn--outline-dark:hover{ border-color:var(--cyan); color:var(--cyan); }

.btn--outline-light{
  border-color:var(--line-on-light);
  color:var(--navy);
}
.btn--outline-light:hover{ border-color:var(--navy); }

.btn--block{ width:100%; justify-content:center; }

.btn svg{ width:1.1em; height:1.1em; flex:none; }

/* ---------- Skip link ---------- */
.skip-link{
  position:absolute;
  left:-999px;
  top:auto;
  background:var(--cyan);
  color:var(--navy);
  padding:.8em 1.2em;
  z-index:200;
  font-weight:700;
  border-radius:0 0 var(--radius) 0;
}
.skip-link:focus{ left:0; top:0; }

/* ---------- Focus visibility ---------- */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
}

/* ==========================================================================
   Header / Navigation
   ========================================================================== */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  height:var(--nav-height);
  display:flex;
  align-items:center;
  background:rgba(7,23,43,.92);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid var(--line-on-dark);
}

.nav{
  width:100%;
  max-width:var(--container);
  margin-inline:auto;
  padding-inline:var(--gutter);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
}

.logo{
  font-family:var(--font-display);
  font-size:1.28rem;
  font-weight:600;
  color:var(--white);
  line-height:1;
}
.logo span{ color:var(--cyan); }

.nav-toggle{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  background:transparent;
  border:1px solid var(--line-on-dark);
  border-radius:var(--radius);
  color:var(--white);
}
.nav-toggle svg{ width:20px; height:20px; }
.nav-toggle .icon-close{ display:none; }
.nav-toggle[aria-expanded="true"] .icon-open{ display:none; }
.nav-toggle[aria-expanded="true"] .icon-close{ display:block; }

.nav-panel{
  position:fixed;
  inset:var(--nav-height) 0 0 0;
  background:var(--navy);
  padding:2rem var(--gutter) 2.5rem;
  display:flex;
  flex-direction:column;
  gap:1.6rem;
  transform:translateY(-8px);
  opacity:0;
  visibility:hidden;
  transition:opacity .22s ease, transform .22s ease, visibility .22s;
  overflow-y:auto;
}
.nav-panel.is-open{
  opacity:1;
  transform:translateY(0);
  visibility:visible;
}

.nav-links{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-direction:column;
  gap:1.4rem;
}
.nav-links a{
  font-family:var(--font-display);
  font-size:1.5rem;
  color:var(--white);
}
.nav-links a:hover{ color:var(--cyan); }

.nav-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  padding-top:1.4rem;
  border-top:1px solid var(--line-on-dark);
}

.lang-switch{
  display:flex;
  gap:.6rem;
  font-size:.92rem;
  font-weight:600;
}
.lang-switch a{
  color:var(--gray-on-dark);
  padding:.3em .5em;
}
.lang-switch a[aria-current="page"]{ color:var(--cyan); }
.lang-switch a:hover{ color:var(--white); }

@media (min-width:900px){
  .nav-toggle{ display:none; }
  .nav-panel{
    position:static;
    inset:auto;
    background:transparent;
    padding:0;
    flex-direction:row;
    align-items:center;
    gap:2.2rem;
    opacity:1;
    visibility:visible;
    transform:none;
    overflow:visible;
  }
  .nav-links{
    flex-direction:row;
    gap:1.9rem;
  }
  .nav-links a{ font-size:.98rem; font-family:var(--font-body); font-weight:600; }
  .nav-meta{ border-top:none; padding-top:0; }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero{
  background:var(--navy);
  color:var(--white);
  padding-block:clamp(48px, 8vw, 90px);
}
.hero .container{
  display:grid;
  gap:clamp(36px, 6vw, 64px);
  align-items:center;
}
.hero-copy p{ color:var(--gray-on-dark); }

.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:.9rem;
  margin-top:1.6rem;
}

.hero-frame{
  position:relative;
  justify-self:center;
  width:min(78vw, 340px);
}
.hero-frame-card{
  border:1px solid var(--line-on-dark);
  padding:14px;
  border-radius:var(--radius);
  background:var(--graphite);
}
.hero-frame img{
  width:100%;
  aspect-ratio: 4 / 5;
  object-fit:cover;
  border-radius:2px;
}
.hero-frame-caption{
  display:flex;
  justify-content:space-between;
  align-items:baseline;
  gap:.5rem;
  padding-top:.9rem;
  font-size:.84rem;
  color:var(--gray-on-dark);
}
.hero-frame-caption strong{ color:var(--white); font-weight:600; }

@media (min-width:900px){
  .hero .container{
    grid-template-columns:1.15fr .85fr;
  }
  .hero-frame{ justify-self:end; width:100%; max-width:360px; }
}

/* ==========================================================================
   Portfolio grid
   ========================================================================== */
.section-head{
  max-width:640px;
  margin-bottom:clamp(28px, 4vw, 44px);
}

.portfolio-grid{
  display:grid;
  gap:18px;
  grid-template-columns:repeat(2, 1fr);
}
@media (min-width:700px){
  .portfolio-grid{ grid-template-columns:repeat(4, 1fr); }
}

.portfolio-tile{
  position:relative;
  aspect-ratio:4/5;
  border-radius:var(--radius);
  overflow:hidden;
  background:
    radial-gradient(120% 140% at 15% 0%, rgba(46,201,212,.22), transparent 55%),
    linear-gradient(155deg, var(--graphite), var(--navy));
  border:1px solid var(--line-on-dark);
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:.7rem;
  text-align:center;
  padding:1rem;
}
.portfolio-tile svg{
  width:30px;
  height:30px;
  color:var(--cyan);
}
.portfolio-tile span{
  font-family:var(--font-display);
  font-size:.98rem;
  color:var(--white);
}

.portfolio-note{
  margin-top:1.8rem;
  font-size:.9rem;
  color:var(--gray-on-light);
}

/* ==========================================================================
   About teaser (home) + About page
   ========================================================================== */
.about-block{
  display:grid;
  gap:clamp(32px, 6vw, 64px);
  align-items:center;
}
@media (min-width:860px){
  .about-block{ grid-template-columns:.8fr 1.2fr; }
  .about-block--reverse{ grid-template-columns:1.2fr .8fr; }
  .about-block--reverse .about-block-media{ order:2; }
}

.about-block-media img{
  width:100%;
  border-radius:var(--radius);
}

.about-block-media figure{ margin:0; }
.about-block-media figcaption{
  margin-top:.7rem;
  font-size:.84rem;
  color:var(--gray-on-dark);
}
.section--light .about-block-media figcaption{ color:var(--gray-on-light); }

/* ==========================================================================
   Process steps
   ========================================================================== */
.steps{
  display:grid;
  gap:28px;
  margin-top:2rem;
}
@media (min-width:760px){
  .steps{ grid-template-columns:repeat(3, 1fr); }
}
.step{ position:relative; padding-top:1.1rem; }
.step-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:2.4rem;
  height:2.4rem;
  border:1px solid var(--cyan);
  color:var(--cyan);
  border-radius:50%;
  font-family:var(--font-display);
  font-size:1.05rem;
  margin-bottom:1rem;
}
.step h3{ margin-bottom:.4em; }

/* ==========================================================================
   CTA band
   ========================================================================== */
.cta-band{
  text-align:center;
}
.cta-band .container{ max-width:760px; }
.cta-band h2{ margin-bottom:.55em; }
.cta-actions{
  display:flex;
  justify-content:center;
  flex-wrap:wrap;
  gap:.9rem;
  margin-top:1.7rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer{
  background:var(--graphite);
  color:var(--gray-on-dark);
  padding-block:44px 28px;
  font-size:.92rem;
}
.footer-grid{
  display:grid;
  gap:28px;
  margin-bottom:28px;
}
@media (min-width:700px){
  .footer-grid{ grid-template-columns:1.3fr 1fr 1fr; }
}
.footer-logo{
  font-family:var(--font-display);
  font-size:1.2rem;
  color:var(--white);
  margin-bottom:.6rem;
}
.footer-logo span{ color:var(--cyan); }
.footer-col h3{
  font-family:var(--font-body);
  font-size:.82rem;
  text-transform:none;
  color:var(--white);
  font-weight:700;
  margin-bottom:.85em;
}
.footer-links{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:.55rem; }
.footer-links a:hover{ color:var(--cyan); }
.footer-bottom{
  border-top:1px solid var(--line-on-dark);
  padding-top:20px;
  display:flex;
  flex-wrap:wrap;
  gap:.8rem 1.4rem;
  justify-content:space-between;
  font-size:.84rem;
}

.social-inline{ display:flex; align-items:center; gap:.5rem; }
.social-inline svg{ width:1.05em; height:1.05em; }

/* ---------- WhatsApp floating button ---------- */
.whatsapp-float{
  position:fixed;
  right:18px;
  bottom:18px;
  z-index:120;
  width:56px;
  height:56px;
  border-radius:50%;
  background:var(--cyan);
  color:var(--navy);
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 8px 24px rgba(7,23,43,.35);
  transition:transform .18s ease;
}
.whatsapp-float:hover{ transform:scale(1.06); }
.whatsapp-float svg{ width:28px; height:28px; }

/* ==========================================================================
   About page specific
   ========================================================================== */
.page-hero{
  background:var(--navy);
  color:var(--white);
  padding-block:clamp(52px, 8vw, 96px);
}
.page-hero p{ color:var(--gray-on-dark); }

.quote-block{
  border-left:3px solid var(--cyan);
  padding-left:1.2rem;
  font-family:var(--font-display);
  font-size:clamp(1.15rem, 2.4vw, 1.5rem);
  font-style:normal;
  margin:1.6rem 0;
  max-width:56ch;
}

.value-list{
  list-style:none;
  margin:1.5rem 0 0;
  padding:0;
  display:grid;
  gap:18px;
}
@media (min-width:700px){
  .value-list{ grid-template-columns:repeat(2,1fr); }
}
.value-list li{
  border:1px solid var(--line-on-light);
  border-radius:var(--radius);
  padding:1.2rem 1.3rem;
}
.section--dark .value-list li, .section--graphite .value-list li{
  border-color:var(--line-on-dark);
}
.value-list h3{ margin-bottom:.35em; }
.value-list p{ margin:0; }

/* Utility */
.visually-hidden{
  position:absolute;
  width:1px; height:1px;
  overflow:hidden;
  clip:rect(0 0 0 0);
  white-space:nowrap;
}

.mt-lg{ margin-top:clamp(28px,4vw,44px); }