:root{
  /* Azul Material — cor de marca real do app (DrawerHeader / switches activeColor) */
  --blue-900:#0d47a1;
  --blue-800:#1565c0;
  --blue-700:#1976d2;
  --blue-600:#1e88e5;
  --blue-500:#2196f3;   /* Colors.blue */
  --blue-100:#bbdefb;
  --blue-050:#e3f2fd;

  /* Superfícies (tema claro do Material) */
  --bg:#f4f6f9;
  --surface:#ffffff;
  --ink:#212121;        /* black87 */
  --ink-2:#5f6b7a;      /* grey600 */
  --line:#e2e8f1;

  /* Cores funcionais Material usadas no app */
  --green:#43a047;      /* estado ativo / dados ok */
  --amber:#ffc107;      /* raios */
  --red:#e53935;

  /* Escala oficial de refletividade dBZ do app (5 → 70 dBZ) */
  --dbz-scale:linear-gradient(90deg,
  #a9a9a9 0%, #a9a9a9 7%,
  #00c8ff 14%, #0064ff 21%, #0000cc 28%,
  #008800 36%, #00cc00 43%, #ffff00 50%,
  #ffd000 57%, #ff8c00 64%, #ff4500 71%,
  #ff0000 79%, #cc0000 86%, #660000 93%, #9900cc 100%);

  --font:'Roboto',sans-serif;
  --font-head:'Roboto Slab',serif;
  --font-mono:'Roboto Mono',monospace;

  --elev-1:0 1px 3px rgba(15,41,82,.12),0 1px 2px rgba(15,41,82,.08);
  --elev-2:0 6px 20px rgba(15,41,82,.10);
  --elev-3:0 18px 42px rgba(13,71,161,.16);
}

*{box-sizing:border-box}
body{font-family:var(--font);color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;overflow-x:hidden}
h1,h2,h3,h4{font-family:var(--font-head);letter-spacing:-.01em}
a{text-decoration:none}

.eyebrow{
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--blue-700);display:inline-flex;align-items:center;gap:.55rem;font-weight:500;
}
.eyebrow::before{content:"";width:26px;height:3px;background:var(--dbz-scale);display:inline-block;border-radius:2px}
.eyebrow.on-blue{color:#cfe6ff}

.dbz-bar{height:6px;width:100%;background:var(--dbz-scale)}

/* ===== NAVBAR ===== */
.navbar-sos{background:var(--blue-800);padding:.85rem 0}
.brand{display:flex;align-items:center;gap:.6rem}
.brand-logo{width:46px;height:46px;object-fit:contain;flex:0 0 auto;display:block}
.drawer-logo{width:66px;height:66px;object-fit:contain;flex:0 0 auto;display:block}
.brand-mark{
  width:40px;height:40px;border-radius:10px;background:#fff;display:grid;place-items:center;
  position:relative;overflow:hidden;box-shadow:var(--elev-1);flex:0 0 auto;
}
.brand-mark .ring{position:absolute;border:1.6px solid var(--blue-500);border-radius:50%;opacity:.55}
.brand-mark .r1{width:28px;height:28px}
.brand-mark .r2{width:16px;height:16px}
.brand-mark .dot{width:7px;height:7px;border-radius:50%;background:var(--blue-600)}
.brand-name{font-family:var(--font-head);font-weight:700;color:#fff;line-height:1;font-size:1.18rem}
.brand-name small{display:block;font-family:var(--font-mono);font-weight:400;font-size:.58rem;letter-spacing:.2em;color:#cfe6ff;margin-top:3px}
.navbar-sos .nav-link{color:#eaf3ff !important;font-weight:500;font-size:.94rem;padding:.4rem .9rem !important}
.navbar-sos .nav-link:hover{color:#fff !important;opacity:.85}
.navbar-toggler{border-color:rgba(255,255,255,.3)}
.navbar-toggler-icon{filter:invert(1) grayscale(1) brightness(2)}
.btn-nav{background:#fff;color:var(--blue-700);font-weight:700;font-size:.88rem;border-radius:8px;padding:.5rem 1.15rem;border:none}
.btn-nav:hover{background:var(--blue-050);color:var(--blue-800)}

/* ===== HERO ===== */
.hero{
  position:relative;color:#fff;padding:4.5rem 0 5rem;overflow:hidden;
  background:linear-gradient(160deg,var(--blue-900),var(--blue-700) 55%,var(--blue-600));
}
.hero-grid{
  position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:46px 46px;mask-image:radial-gradient(circle at 62% 34%,#000,transparent 74%);
}
.hero h1{font-size:clamp(2.2rem,5vw,3.6rem);font-weight:700;line-height:1.05;color:#fff}
.hero h1 .accent{color:#ffe08a}
.hero-lead{color:#dcecff;font-size:1.06rem;max-width:33rem;margin-top:1.2rem}
.hero-stats{display:flex;gap:2.2rem;margin-top:2.1rem;flex-wrap:wrap}
.hero-stat .num{font-family:var(--font-head);font-weight:700;font-size:1.7rem;color:#fff}
.hero-stat .lbl{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:#a9ccf2}

.btn-cta{background:#fff;color:var(--blue-700);font-weight:700;border-radius:10px;padding:.85rem 1.6rem;border:none;font-size:1rem;display:inline-flex;align-items:center;gap:.55rem;transition:.18s;box-shadow:var(--elev-2)}
.btn-cta:hover{background:var(--blue-050);color:var(--blue-800);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:#eaf3ff;border:1.5px solid rgba(255,255,255,.5);border-radius:10px;padding:.85rem 1.5rem;font-weight:600;font-size:1rem;display:inline-flex;align-items:center;gap:.5rem;transition:.2s}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08);color:#fff}

/* Radar PPI */
.radar-wrap{position:relative;display:grid;place-items:center;min-height:430px}
.radar-ppi{position:absolute;width:min(430px,86vw);aspect-ratio:1;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.10),rgba(255,255,255,0) 70%)}
.radar-ring{position:absolute;border:1px solid rgba(255,255,255,.22);border-radius:50%}
.rr1{width:min(430px,86vw);aspect-ratio:1}
.rr2{width:min(320px,64vw);aspect-ratio:1}
.rr3{width:min(210px,42vw);aspect-ratio:1}
.rr4{width:min(105px,21vw);aspect-ratio:1}
.radar-cross{position:absolute;background:rgba(255,255,255,.16)}
.radar-cross.h{width:min(430px,86vw);height:1px}
.radar-cross.v{height:min(430px,86vw);width:1px}
.radar-sweep{position:absolute;width:min(430px,86vw);aspect-ratio:1;border-radius:50%;background:conic-gradient(from 0deg,rgba(255,255,255,.5),rgba(255,255,255,0) 55deg,transparent);animation:sweep 4s linear infinite}
@keyframes sweep{to{transform:rotate(360deg)}}
/* Ecos com a escala dBZ real */
/* Ecos de radar em polígonos de refletividade (contornos frio→quente) */
.radar-echoes{position:absolute;width:min(430px,86vw);aspect-ratio:1;overflow:visible;opacity:.95;pointer-events:none;transform-origin:center;animation:echoDrift 7s ease-in-out infinite}
.radar-echoes path{stroke:none}
@keyframes echoDrift{0%,100%{opacity:.86;transform:scale(1)}50%{opacity:1;transform:scale(1.025)}}

.status-chip{position:absolute;z-index:3;background:rgba(13,27,46,.72);border:1px solid rgba(255,255,255,.22);border-radius:12px;padding:.55rem .8rem;backdrop-filter:blur(6px);font-family:var(--font-mono);font-size:.72rem;color:#eaf3ff;display:flex;align-items:center;gap:.5rem;box-shadow:var(--elev-2)}
.status-chip .pulse{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 0 0 rgba(67,160,71,.6);animation:pulse 2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 8px rgba(67,160,71,0)}100%{box-shadow:0 0 0 0 rgba(67,160,71,0)}}
.chip-top{top:13%;right:1%}
.chip-bottom{bottom:11%;left:-1%}

/* ===== SEÇÕES ===== */
.section{padding:5.5rem 0}
.section-head h2{font-size:clamp(1.8rem,3.5vw,2.5rem);font-weight:700;margin-top:.7rem}
.section-sub{color:var(--ink-2);max-width:42rem;margin-top:.7rem;font-size:1.03rem}

/* Cards Material */
.feature-card{background:var(--surface);border-radius:14px;padding:1.7rem;height:100%;position:relative;overflow:hidden;box-shadow:var(--elev-1);border-top:3px solid var(--accent,var(--blue-500));transition:transform .2s,box-shadow .2s}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--elev-3)}
.feature-ico{width:52px;height:52px;border-radius:12px;display:grid;place-items:center;font-size:1.5rem;color:#fff;margin-bottom:1.05rem;background:var(--accent,var(--blue-500))}
.feature-card h3{font-size:1.18rem;font-weight:700;margin-bottom:.5rem;font-family:var(--font-head)}
.feature-card p{color:var(--ink-2);font-size:.95rem;margin-bottom:0;line-height:1.55}
.feature-tag{font-family:var(--font-mono);font-size:.66rem;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-2);background:var(--blue-050);border-radius:6px;padding:.18rem .55rem;display:inline-block;margin-top:1rem}

/* Legenda dBZ real (bloco explicativo) */
.dbz-legend{background:var(--surface);border-radius:14px;padding:1.4rem 1.6rem;box-shadow:var(--elev-1);margin-top:2.5rem}
.dbz-legend .scale{height:16px;border-radius:6px;background:var(--dbz-scale)}
.dbz-legend .ticks{display:flex;justify-content:space-between;font-family:var(--font-mono);font-size:.68rem;color:var(--ink-2);margin-top:.5rem}

/* ===== COBERTURA ===== */
.coverage{background:linear-gradient(180deg,var(--blue-800),var(--blue-900));color:#eaf3ff}
.coverage .section-sub{color:#c6dcf7}
.station-pill{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:999px;padding:.5rem 1rem;font-size:.9rem;color:#eaf3ff;display:inline-flex;align-items:center;gap:.5rem;font-weight:500}
.station-pill i{color:#8fc4ff}
.coverage-stat{border-left:3px solid;border-image:var(--dbz-scale) 1;padding-left:1rem}
.coverage-stat .n{font-family:var(--font-head);font-weight:700;font-size:2.3rem;color:#fff;line-height:1}
.coverage-stat .t{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:#a9ccf2;margin-top:.4rem}

/* ===== SOBRE ===== */
.about-card{background:var(--surface);border-radius:16px;padding:2.2rem;box-shadow:var(--elev-1)}
.source-badge{display:inline-flex;align-items:center;gap:.45rem;font-size:.82rem;font-weight:500;color:var(--ink);background:var(--blue-050);border-radius:8px;padding:.4rem .75rem;margin:.25rem .25rem 0 0}
.source-badge i{color:var(--blue-600)}

/* Eco do DrawerHeader do app (cabeçalho azul com a logo) */
.drawer-echo{border-radius:16px;overflow:hidden;box-shadow:var(--elev-2);background:var(--surface)}
.drawer-echo .dh{background:var(--blue-500);padding:1.6rem;display:flex;align-items:center;gap:1rem}
.drawer-echo .dh .logo-slot{width:64px;height:64px;border-radius:14px;background:#fff;display:grid;place-items:center;position:relative;overflow:hidden;flex:0 0 auto}
.drawer-echo .dh .logo-slot .ring{position:absolute;border:2px solid var(--blue-500);border-radius:50%;opacity:.55}
.drawer-echo .dh .logo-slot .rr-a{width:42px;height:42px}
.drawer-echo .dh .logo-slot .rr-b{width:24px;height:24px}
.drawer-echo .dh .logo-slot .d{width:9px;height:9px;border-radius:50%;background:var(--blue-600)}
.drawer-echo .dh .txt{color:#fff}
.drawer-echo .dh .txt b{font-family:var(--font-head);font-size:1.25rem;display:block}
.drawer-echo .dh .txt span{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.16em;opacity:.85}
.drawer-echo .row-item{display:flex;align-items:center;gap:.8rem;padding:.85rem 1.6rem;border-bottom:1px solid var(--line);color:var(--ink);font-size:.95rem}
.drawer-echo .row-item:last-child{border-bottom:none}
.drawer-echo .row-item i.lead{color:var(--blue-600);font-size:1.15rem}
.drawer-echo .row-item .sw{margin-left:auto;width:34px;height:19px;border-radius:99px;background:var(--blue-500);position:relative}
.drawer-echo .row-item .sw::after{content:"";position:absolute;top:2px;right:2px;width:15px;height:15px;border-radius:50%;background:#fff}
.drawer-echo .row-item .sw.off{background:#cfd8e3}
.drawer-echo .row-item .sw.off::after{right:auto;left:2px}

/* ===== SOBRE O PROJETO ===== */
.project{background:var(--surface)}
.project-panel{max-width:56rem;margin:0 auto}
.project-panel h2{font-size:clamp(1.8rem,3.2vw,2.4rem)}
.project-body{margin-top:1.8rem}
.project-body p{color:var(--ink-2);font-size:1.05rem;line-height:1.75;margin-bottom:1.15rem}
.project-body p:last-child{margin-bottom:0}
.project-body strong{color:var(--ink);font-weight:700}
.project-tags{display:flex;flex-wrap:wrap;gap:.5rem;justify-content:center;margin-top:2.2rem}

/* ===== DOWNLOAD ===== */
.download{background:linear-gradient(150deg,var(--blue-800),var(--blue-900));color:#fff;border-radius:22px;padding:3.4rem;position:relative;overflow:hidden;box-shadow:var(--elev-3)}
.download .dbz-bar{position:absolute;top:0;left:0}
.store-btn{display:inline-flex;align-items:center;gap:.75rem;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.28);border-radius:12px;padding:.72rem 1.4rem;color:#fff;transition:.2s;min-width:210px}
.store-btn:hover{border-color:#fff;background:rgba(255,255,255,.16);color:#fff}
.store-btn i{font-size:2rem;line-height:1}
.store-btn .s1{font-family:var(--font-mono);font-size:.58rem;letter-spacing:.1em;text-transform:uppercase;color:#c6dcf7;display:block}
.store-btn .s2{font-family:var(--font-head);font-weight:700;font-size:1.05rem;display:block;line-height:1.1}

/* ===== RODAPÉ ===== */
.footer{background:#0d1b2e;color:#a9bdd6;padding:3.2rem 0 1.6rem}
.footer a{color:#a9bdd6}
.footer a:hover{color:#fff}
.footer h5{color:#fff;font-family:var(--font-head);font-size:1rem;margin-bottom:1rem}
.footer .fine{border-top:1px solid rgba(255,255,255,.08);margin-top:2.2rem;padding-top:1.4rem;font-size:.82rem;font-family:var(--font-mono);color:#6f89a8}

@media (max-width:991px){
  .hero{padding-top:3rem;text-align:center}
  .hero-lead,.hero-stats{margin-left:auto;margin-right:auto}
  .hero-stats{justify-content:center}
  .radar-wrap{min-height:350px;margin-top:2.5rem}
}
@media (prefers-reduced-motion:reduce){.radar-sweep,.status-chip .pulse,.radar-echoes{animation:none}}