/* ==========================================================================
   Planasa Construtora — Site institucional (onepage)
   Design tokens sourced from the Planasa Design System
   ========================================================================== */

@font-face{font-family:'Exo 2';src:url('../assets/fonts/Exo2-Regular.ttf') format('truetype');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'Exo 2';src:url('../assets/fonts/Exo2-Medium.ttf') format('truetype');font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:'Exo 2';src:url('../assets/fonts/Exo2-SemiBold.ttf') format('truetype');font-weight:600;font-style:normal;font-display:swap}
@font-face{font-family:'Exo 2';src:url('../assets/fonts/Exo2-Bold.ttf') format('truetype');font-weight:700;font-style:normal;font-display:swap}
@font-face{font-family:'Exo 2';src:url('../assets/fonts/Exo2-ExtraBold.ttf') format('truetype');font-weight:800;font-style:normal;font-display:swap}
@font-face{font-family:'Exo 2';src:url('../assets/fonts/Exo2-Black.ttf') format('truetype');font-weight:900;font-style:normal;font-display:swap}

:root{
  /* Color */
  --navy-900:#0e1a4a;
  --navy-800:#111144;
  --navy-700:#182966;
  --navy-600:#223382;
  --navy-500:#2c4099;
  --navy-400:#4c5db3;
  --navy-300:#7c8bcb;
  --navy-200:#9bacd8;
  --navy-100:#c7d0ea;
  --navy-50:#eef1f9;

  --orange-600:#c96a0e;
  --orange-500:#f98513;
  --orange-400:#fb9d3d;
  --orange-300:#fcb670;
  --orange-100:#fde6c9;

  --sand-500:#dad1c8;
  --sand-300:#ece7e0;
  --sand-100:#f7f4f0;

  --white:#ffffff;
  --black:#0a0a0a;
  --gray-900:#1c2033;
  --gray-700:#454a63;
  --gray-500:#6d7290;
  --gray-300:#a9adc2;
  --gray-200:#d3d5e0;
  --gray-100:#e9eaf1;
  --gray-50:#f5f6fa;

  --color-bg:var(--white);
  --color-surface:var(--white);
  --color-surface-muted:var(--gray-50);
  --color-surface-inverse:var(--navy-800);
  --color-border:var(--gray-200);
  --color-border-strong:var(--navy-200);

  --color-text-primary:var(--navy-800);
  --color-text-secondary:var(--gray-700);
  --color-text-muted:var(--gray-500);
  --color-text-on-dark:var(--white);
  --color-text-on-dark-muted:var(--navy-200);

  --color-brand-primary:var(--navy-600);
  --color-brand-primary-hover:var(--navy-700);
  --color-brand-primary-active:var(--navy-800);
  --color-brand-accent:var(--orange-500);
  --color-brand-accent-hover:var(--orange-600);

  --color-link:var(--navy-600);
  --color-link-hover:var(--navy-700);

  /* Type */
  --font-display:'Exo 2',system-ui,sans-serif;
  --font-body:'Exo 2',system-ui,sans-serif;

  --text-display-xl:4.5rem;
  --text-display-l:3.25rem;
  --text-display-m:2.5rem;
  --text-heading-l:1.75rem;
  --text-heading-m:1.375rem;
  --text-heading-s:1.125rem;
  --text-body-l:1.125rem;
  --text-body-m:1rem;
  --text-body-s:0.875rem;
  --text-caption:0.75rem;
  --text-eyebrow:0.8125rem;

  --leading-tight:1.08;
  --leading-heading:1.2;
  --leading-body:1.6;

  --tracking-tight:-0.01em;
  --tracking-normal:0em;
  --tracking-wide:0.06em;
  --tracking-widest:0.14em;

  /* Spacing */
  --space-1:4px; --space-2:8px; --space-3:12px; --space-4:16px; --space-5:20px;
  --space-6:24px; --space-8:32px; --space-10:40px; --space-12:48px; --space-16:64px;
  --space-20:80px; --space-24:96px; --space-32:128px;

  --radius-sm:6px; --radius-md:10px; --radius-lg:16px; --radius-xl:24px; --radius-pill:999px;

  --shadow-sm:0 1px 2px rgba(14,26,74,0.06);
  --shadow-md:0 6px 20px rgba(14,26,74,0.10);
  --shadow-lg:0 16px 40px rgba(14,26,74,0.16);

  --container-max:1200px;
  --section-padding:120px;
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
*{margin:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  color:var(--color-text-primary);
  background:var(--color-bg);
  -webkit-font-smoothing:antialiased;
  line-height:var(--leading-body);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none;padding:0}
button,input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{line-height:var(--leading-heading);font-weight:800;letter-spacing:var(--tracking-tight)}

.container{max-width:var(--container-max);margin:0 auto;padding:0 var(--space-8)}

.eyebrow{
  display:flex;align-items:center;gap:var(--space-2);
  font-size:var(--text-eyebrow);font-weight:700;letter-spacing:var(--tracking-widest);
  text-transform:uppercase;color:var(--color-brand-accent);margin-bottom:var(--space-3);
}
.eyebrow::before{content:'';width:20px;height:2px;background:var(--color-brand-accent);display:inline-block}

.section{padding:var(--section-padding) 0}
.section-title{font-size:var(--text-display-m);font-weight:800;color:var(--color-text-primary);max-width:640px}
.section-head{margin-bottom:var(--space-16)}
.section-head.center{text-align:center;margin-left:auto;margin-right:auto}
.section-sub{font-size:var(--text-body-l);color:var(--color-text-secondary);margin-top:var(--space-4);max-width:560px}
.section-head.center .section-sub{margin-left:auto;margin-right:auto}
.bg-muted{background:var(--sand-100)}
.bg-inverse{background:var(--navy-800);color:var(--white)}

/* ---------- Buttons ---------- */
.btn{
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);
  font-weight:600;font-size:var(--text-body-m);padding:16px 30px;border-radius:var(--radius-pill);
  border:1px solid transparent;cursor:pointer;white-space:nowrap;overflow:hidden;isolation:isolate;
  transition:background 200ms ease-out,color 200ms ease-out,border-color 200ms ease-out,
             transform 220ms cubic-bezier(.34,1.56,.64,1),box-shadow 250ms ease-out;
}
.btn svg{width:18px;height:18px;flex-shrink:0;transition:transform 250ms ease-out}
.btn::before{
  content:'';position:absolute;inset:0;z-index:-1;border-radius:inherit;
  background:linear-gradient(120deg, rgba(255,255,255,0) 30%, rgba(255,255,255,0.35) 50%, rgba(255,255,255,0) 70%);
  background-size:220% 100%;background-position:150% 0;
  transition:background-position 550ms ease-out;pointer-events:none;
}
.btn:hover::before{background-position:-50% 0}
.btn:active{transform:scale(0.96)}

.btn-primary{background:var(--color-brand-primary);color:#fff;border-color:var(--color-brand-primary)}
.btn-primary:hover{background:var(--color-brand-primary-hover);border-color:var(--color-brand-primary-hover);transform:translateY(-3px);box-shadow:0 10px 24px rgba(34,51,130,0.35)}

.btn-accent{background:var(--color-brand-accent);color:#fff;border-color:var(--color-brand-accent)}
.btn-accent:hover{background:var(--color-brand-accent-hover);border-color:var(--color-brand-accent-hover);transform:translateY(-3px);box-shadow:0 10px 24px rgba(249,133,19,0.4)}

.btn-secondary{background:transparent;color:#fff;border-color:rgba(255,255,255,0.5)}
.btn-secondary:hover{background:rgba(255,255,255,0.12);border-color:#fff;transform:translateY(-3px);box-shadow:0 8px 20px rgba(0,0,0,0.25)}

.btn-ghost-navy{background:transparent;color:var(--color-brand-primary);border-color:var(--color-border-strong)}
.btn-ghost-navy:hover{background:var(--navy-50);border-color:var(--color-brand-primary);transform:translateY(-3px);box-shadow:0 8px 20px rgba(34,51,130,0.14)}

.btn-white{background:#fff;color:var(--navy-800);border-color:#fff}
.btn-white:hover{background:var(--sand-100);transform:translateY(-3px);box-shadow:0 12px 28px rgba(0,0,0,0.28)}

.btn-lg{padding:18px 34px;font-size:var(--text-body-l)}

.btn:hover svg{transform:translateX(3px) rotate(2deg)}
.btn-block{width:100%}

@media (prefers-reduced-motion: reduce){
  .btn,.btn svg,.btn::before{transition:none}
  .btn:hover{transform:none}
}

/* ---------- Nav (floating, over hero) ---------- */
.nav{
  position:fixed;top:20px;left:0;right:0;z-index:50;padding:0 var(--space-6);
  transition:top 250ms ease;
}
.nav .container{
  display:flex;align-items:center;justify-content:space-between;gap:var(--space-6);
  max-width:var(--container-max);margin:0 auto;padding:8px 10px 8px 26px;
  background:rgba(10,16,42,0.55);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border:1px solid rgba(255,255,255,0.14);border-radius:var(--radius-pill);
  box-shadow:0 12px 32px rgba(0,0,0,0.28);
}
.nav-logo img{height:38px;width:auto}
.nav-links{display:flex;align-items:center;gap:var(--space-8)}
.nav-links a{font-size:var(--text-body-s);font-weight:600;color:rgba(255,255,255,0.82);transition:color 150ms}
.nav-links a:hover{color:#fff}
.nav-cta{display:flex;align-items:center}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:4px}
.nav-toggle svg{width:24px;height:24px;color:#fff}

/* ---------- Hero ---------- */
.hero{
  position:relative;min-height:100vh;display:flex;align-items:flex-end;justify-content:center;
  background:var(--navy-900);overflow:hidden;padding-bottom:calc(var(--space-32) + var(--space-10));
}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 30%}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg, rgba(10,16,42,0.15) 0%, rgba(10,16,42,0.35) 45%, rgba(8,12,30,0.92) 100%)}
.hero-content-wrap{position:relative;max-width:820px;margin:0 auto;padding:0 var(--space-8);text-align:center}
.hero-content-wrap h1{font-size:var(--text-display-xl);color:#fff;margin-bottom:var(--space-6);line-height:1.05}
.hero-content-wrap .lede{font-size:var(--text-body-l);color:var(--navy-100);max-width:600px;margin:0 auto var(--space-10)}

/* Overlap card strip (diferenciais) pulled up onto hero */
.diff-wrap{position:relative;margin-top:calc(var(--space-32) * -1);z-index:2}
.diff-panel{
  background:#fff;border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);
  padding:var(--space-16) var(--space-16) var(--space-12);
}
.diff-head{max-width:640px;margin-bottom:var(--space-12)}
.diff-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-8)}
.diff-card{padding:var(--space-6) 0;border-top:2px solid var(--sand-300)}
.diff-icon{
  width:52px;height:52px;border-radius:var(--radius-md);background:var(--navy-50);
  display:flex;align-items:center;justify-content:center;margin-bottom:var(--space-5);
}
.diff-icon svg{width:24px;height:24px;color:var(--color-brand-primary)}
.diff-card h3{font-size:var(--text-heading-m);margin-bottom:var(--space-3);color:var(--color-text-primary)}
.diff-card p{font-size:var(--text-body-s);color:var(--color-text-secondary)}

/* ---------- About ---------- */
.about{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-20);align-items:center}
.about-media{position:relative;border-radius:var(--radius-xl);overflow:hidden;aspect-ratio:4/5}
.about-media img{width:100%;height:100%;object-fit:cover}
.about-copy h2{font-size:var(--text-display-m);margin-bottom:var(--space-6)}
.about-copy p{font-size:var(--text-body-l);color:var(--color-text-secondary)}
.about-copy .btn{margin-top:var(--space-8)}

/* ---------- Services ---------- */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-6)}
.service-card{
  background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-lg);
  padding:var(--space-8);box-shadow:var(--shadow-sm);transition:box-shadow 200ms,transform 200ms;
}
.service-card:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}
.service-icon{
  width:48px;height:48px;border-radius:var(--radius-md);background:var(--orange-100);
  display:flex;align-items:center;justify-content:center;margin-bottom:var(--space-6);
}
.service-icon svg{width:22px;height:22px;color:var(--orange-600)}
.service-card h3{font-size:var(--text-heading-s);margin-bottom:var(--space-2)}
.service-card p{font-size:var(--text-body-s);color:var(--color-text-secondary)}

/* ---------- Portfolio auto-scroll marquee ---------- */
.portfolio-head{display:flex;justify-content:space-between;align-items:flex-end;gap:var(--space-8);margin-bottom:var(--space-16)}

.obras-marquee{
  position:relative;width:100%;overflow:hidden;
  mask-image:linear-gradient(90deg, transparent 0%, black 8%, black 92%, transparent 100%);
  -webkit-mask-image:linear-gradient(90deg, transparent 0%, black 8%, black 92%, transparent 100%);
}
.obras-track{
  display:flex;align-items:center;gap:var(--space-6);width:max-content;
  animation:obras-scroll 75s linear infinite;
}
.obras-marquee:hover .obras-track{animation-play-state:paused}
.obra-item{
  flex-shrink:0;width:220px;height:280px;border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-md);transition:transform 300ms ease,box-shadow 300ms ease;
}
.obra-item:hover{transform:scale(1.045);box-shadow:var(--shadow-lg)}
.obra-item img{width:100%;height:100%;object-fit:cover;display:block}

@keyframes obras-scroll{
  0%{transform:translateX(0)}
  100%{transform:translateX(-50%)}
}
@media (prefers-reduced-motion: reduce){
  .obras-track{animation:none}
}

/* ---------- Process ---------- */
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-6);counter-reset:step}
.process-card{position:relative;padding-top:var(--space-8);border-top:2px solid var(--color-border)}
.process-num{font-family:var(--font-display);font-size:2.25rem;font-weight:900;color:var(--navy-100);margin-bottom:var(--space-4)}
.process-card h3{font-size:var(--text-heading-s);margin-bottom:var(--space-2)}
.process-card p{font-size:var(--text-body-s);color:var(--color-text-secondary)}

/* ---------- CTA + Contact ---------- */
.cta-grid{display:grid;grid-template-columns:1.1fr 0.9fr;gap:var(--space-20);align-items:start}
.cta-copy h2{font-size:var(--text-display-m);color:#fff;margin-bottom:var(--space-5)}
.cta-copy .lede{font-size:var(--text-body-l);color:var(--navy-100);margin-bottom:var(--space-8);max-width:460px}
.cta-info{display:flex;flex-direction:column;gap:var(--space-3);margin-top:var(--space-12)}
.cta-info a,.cta-info span{font-size:var(--text-body-s);color:var(--navy-100);display:flex;align-items:center;gap:var(--space-3)}
.cta-info a:hover{color:#fff}
.cta-info svg{width:18px;height:18px;color:var(--orange-400);flex-shrink:0}

.form-card{background:#fff;border-radius:var(--radius-xl);padding:var(--space-10);box-shadow:var(--shadow-lg)}
.field{display:flex;flex-direction:column;gap:var(--space-2);margin-bottom:var(--space-5)}
.field label{font-size:var(--text-body-s);font-weight:600;color:var(--color-text-primary)}
.field input,.field select,.field textarea{
  font-family:var(--font-body);font-size:var(--text-body-m);padding:13px 16px;
  border-radius:var(--radius-md);border:1px solid var(--color-border);outline:none;
  color:var(--color-text-primary);background:#fff;width:100%;transition:border-color 150ms;
}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--color-brand-primary)}
.field textarea{resize:vertical;min-height:80px}
.form-note{font-size:var(--text-caption);color:var(--color-text-muted);margin-top:var(--space-4);text-align:center}

/* ---------- Footer ---------- */
.footer{background:var(--navy-900);color:var(--navy-100);padding:var(--space-16) 0 var(--space-8)}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:var(--space-16);padding-bottom:var(--space-12);border-bottom:1px solid rgba(255,255,255,0.1)}
.footer-logo img{height:30px;margin-bottom:var(--space-5)}
.footer-top p{font-size:var(--text-body-s);color:var(--navy-200);max-width:320px}
.footer-col h4{font-size:var(--text-body-s);font-weight:700;text-transform:uppercase;letter-spacing:var(--tracking-wide);color:#fff;margin-bottom:var(--space-5)}
.footer-col ul{display:flex;flex-direction:column;gap:var(--space-3)}
.footer-col a{font-size:var(--text-body-s);color:var(--navy-200);transition:color 150ms;display:inline-flex;align-items:center;gap:var(--space-2)}
.footer-col a:hover{color:#fff}
.footer-col svg{width:16px;height:16px;color:var(--orange-400);flex-shrink:0}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:var(--space-4);padding-top:var(--space-8);font-size:var(--text-caption);color:var(--navy-300)}
.footer-bottom .socials{display:flex;gap:var(--space-4)}
.footer-credit{display:inline-flex;align-items:center;gap:var(--space-2);color:var(--navy-300);transition:opacity 150ms}
.footer-credit:hover{opacity:0.8}
.footer-credit img{height:30px;width:auto;display:block}

/* ---------- WhatsApp floating button ---------- */
.wa-float{
  position:fixed;bottom:24px;right:24px;z-index:60;background:#25d366;color:#fff;
  width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-lg);transition:transform 220ms cubic-bezier(.34,1.56,.64,1),box-shadow 220ms;
  animation:wa-pulse 2.6s ease-out infinite;
}
.wa-float:hover{transform:scale(1.1) rotate(-6deg);box-shadow:0 12px 28px rgba(37,211,102,0.5)}
.wa-float:active{transform:scale(0.95)}
.wa-float svg{width:28px;height:28px;transition:transform 220ms}
@keyframes wa-pulse{
  0%{box-shadow:var(--shadow-lg),0 0 0 0 rgba(37,211,102,0.55)}
  70%{box-shadow:var(--shadow-lg),0 0 0 14px rgba(37,211,102,0)}
  100%{box-shadow:var(--shadow-lg),0 0 0 0 rgba(37,211,102,0)}
}
@media (prefers-reduced-motion: reduce){
  .wa-float{animation:none}
}

/* ---------- Back-to-top floating button ---------- */
.top-float{
  position:fixed;bottom:90px;right:24px;z-index:60;background:var(--color-brand-accent);color:#fff;
  width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  border:none;cursor:pointer;box-shadow:var(--shadow-lg);
  opacity:0;transform:translateY(10px) scale(0.9);pointer-events:none;
  transition:opacity 220ms ease,transform 220ms cubic-bezier(.34,1.56,.64,1),background 200ms;
}
.top-float.visible{opacity:1;transform:translateY(0) scale(1);pointer-events:auto}
.top-float:hover{background:var(--color-brand-accent-hover);transform:translateY(-3px) scale(1.06)}
.top-float:active{transform:scale(0.95)}
.top-float svg{width:20px;height:20px}
@media (prefers-reduced-motion: reduce){
  .top-float{transition:opacity 220ms}
}

/* ---------- Scrollbar ---------- */
html{scrollbar-color:var(--orange-500) var(--sand-100)}
::-webkit-scrollbar{width:12px;height:12px}
::-webkit-scrollbar-track{background:var(--sand-100)}
::-webkit-scrollbar-thumb{background-color:var(--orange-500);border-radius:var(--radius-pill);border:3px solid var(--sand-100)}
::-webkit-scrollbar-thumb:hover{background-color:var(--orange-600)}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  :root{--section-padding:88px}
  .container{padding:0 var(--space-6)}
  .hero-content-wrap h1{font-size:2.75rem}
  .nav{top:12px}
  .diff-grid{grid-template-columns:1fr;gap:var(--space-8)}
  .about{grid-template-columns:1fr;gap:var(--space-10)}
  .about-media{order:-1;aspect-ratio:16/9}
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .obra-item{width:180px;height:230px}
  .process-grid{grid-template-columns:repeat(2,1fr)}
  .cta-grid{grid-template-columns:1fr;gap:var(--space-12)}
  .footer-top{grid-template-columns:1fr 1fr;gap:var(--space-10)}
  .footer-top .footer-logo{grid-column:span 2}
}
@media (max-width:720px){
  .nav .container{padding:8px 10px 8px 20px}
  .nav-links{
    position:fixed;top:76px;left:var(--space-6);right:var(--space-6);flex-direction:column;align-items:flex-start;
    background:rgba(10,16,42,0.85);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
    border:1px solid rgba(255,255,255,0.14);border-radius:var(--radius-lg);box-shadow:0 12px 32px rgba(0,0,0,0.3);
    padding:var(--space-6);gap:var(--space-5);
    transform:translateY(-8px);opacity:0;pointer-events:none;transition:opacity 180ms,transform 180ms;
  }
  .nav-links a{color:rgba(255,255,255,0.85)}
  .nav-links a:hover{color:#fff}
  .nav-links.open{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-cta .btn span{display:none}
  .nav-cta .btn{padding:12px}
  .nav-toggle{display:block}
  .hero-content-wrap h1{font-size:2.1rem}
  .diff-panel{padding:var(--space-8)}
  .services-grid{grid-template-columns:1fr}
  .obra-item{width:150px;height:190px}
  .obras-track{gap:var(--space-4);animation-duration:55s}
  .process-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .footer-top .footer-logo{grid-column:span 1}
  .footer-bottom{flex-direction:column;gap:var(--space-4);align-items:flex-start}
  .section-title{font-size:2rem}
  :root{--section-padding:64px}
}