/* ================================================================
   STUDIO EVOLUTION TECH · tema tecnológico (escuro, neon, vidro)
   ================================================================ */
:root {
    --fundo: #050B1F;        /* azul quase preto */
    --fundo2: #0B1E4A;       /* azul profundo da marca */
    --azul: #2563EB;
    --azul2: #3B82F6;
    --ciano: #22D3EE;
    --claro: #93C5FD;
    --roxo: #8B5CF6;
    --gelo: #0A1430;         /* superfície */
    --cartao: rgba(255, 255, 255, 0.04);
    --texto: #E6EEFF;
    --cinza: #8FA3C8;
    --linha: rgba(147, 197, 253, 0.14);
    --verde: #25D366;
    --brilho: 0 0 24px rgba(34, 211, 238, .45), 0 0 60px rgba(37, 99, 235, .25);
    --mono: 'JetBrains Mono', ui-monospace, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: 'Sora', 'Segoe UI', system-ui, sans-serif; color: var(--texto); background: var(--fundo); line-height: 1.6; overflow-x: clip; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: var(--ciano); }
::selection { background: var(--ciano); color: var(--fundo); }
.container { width: min(1180px, 100% - 40px); margin: 0 auto; position: relative; z-index: 2; }

/* ===== FUNDO VIVO: rede de partículas + aurora + grade ===== */
#rede { position: fixed; inset: 0; z-index: 0; pointer-events: none; }
.aurora { position: fixed; inset: -20%; z-index: 0; pointer-events: none; filter: blur(80px); opacity: .55;
    background: radial-gradient(circle at 20% 20%, rgba(37, 99, 235, .35), transparent 35%),
                radial-gradient(circle at 80% 30%, rgba(34, 211, 238, .22), transparent 35%),
                radial-gradient(circle at 60% 80%, rgba(139, 92, 246, .22), transparent 40%);
    animation: aurora 22s ease-in-out infinite alternate; }
@keyframes aurora { to { transform: translate(-6%, 4%) rotate(8deg) scale(1.1); } }
.ruido { position: fixed; inset: 0; z-index: 1; pointer-events: none; opacity: .05; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E"); }
.cursor-luz { position: fixed; z-index: 1; width: 520px; height: 520px; border-radius: 50%; pointer-events: none; transform: translate(-50%, -50%); background: radial-gradient(circle, rgba(34, 211, 238, .12), transparent 60%); transition: opacity .3s; opacity: 0; }
main, header, footer { position: relative; z-index: 2; }

/* ===== LOGO ANIMADO ===== */
.marca { display: flex; align-items: center; gap: 12px; text-decoration: none; color: #FFFFFF; }
.marca svg { width: 36px; height: 36px; overflow: visible; }
.marca svg rect, .marca svg path { transform-box: fill-box; transform-origin: bottom; animation: subir .9s cubic-bezier(.2, .8, .2, 1) both; }
.marca svg rect:nth-child(2) { animation-delay: .12s; }
.marca svg path { animation-delay: .24s; filter: drop-shadow(0 0 6px rgba(34, 211, 238, .9)); }
@keyframes subir { from { transform: scaleY(0); opacity: 0; } }
.marca:hover svg path { animation: pulso 1.2s ease-in-out infinite; }
@keyframes pulso { 50% { filter: drop-shadow(0 0 14px rgba(34, 211, 238, 1)); transform: translateY(-3px); } }
.marca span { display: flex; flex-direction: column; line-height: 1.05; }
.marca small { font-size: 9px; font-weight: 600; letter-spacing: .42em; color: var(--ciano); }
.marca b { font-size: 17px; font-weight: 800; letter-spacing: -.01em; background: linear-gradient(90deg, #FFFFFF 0%, #FFFFFF 40%, var(--ciano) 50%, #FFFFFF 60%, #FFFFFF 100%); background-size: 250% 100%; -webkit-background-clip: text; background-clip: text; color: transparent; animation: reflexo 5s linear infinite; }
@keyframes reflexo { from { background-position: 100% 0; } to { background-position: -150% 0; } }

/* ===== TOPO ===== */
.topo { position: fixed; inset: 0 0 auto 0; z-index: 50; background: rgba(5, 11, 31, .6); backdrop-filter: blur(16px) saturate(140%); -webkit-backdrop-filter: blur(16px) saturate(140%); border-bottom: 1px solid var(--linha); }
.topo::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px; background: linear-gradient(90deg, transparent, var(--ciano), transparent); opacity: .6; animation: varrer 6s linear infinite; background-size: 50% 100%; background-repeat: no-repeat; }
@keyframes varrer { from { background-position: -50% 0; } to { background-position: 150% 0; } }
.topo .container { display: flex; align-items: center; gap: 24px; height: 72px; }
.menu { display: flex; gap: 28px; margin-left: auto; }
.menu a { color: var(--cinza); text-decoration: none; font-size: 14px; position: relative; padding: 6px 0; transition: color .25s; }
.menu a::before { content: "//"; font-family: var(--mono); color: var(--ciano); opacity: 0; margin-right: 4px; transition: opacity .25s; }
.menu a:hover { color: #FFFFFF; }
.menu a:hover::before { opacity: 1; }

/* ===== BOTÕES (borda neon girando, brilho e efeito magnético) ===== */
.botao { --a: 0deg; position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 15px 28px; border-radius: 14px; font-weight: 700; font-size: 15px; text-decoration: none; border: 0; cursor: pointer; font-family: inherit; color: #FFFFFF; isolation: isolate; overflow: hidden; transition: transform .25s cubic-bezier(.2, .8, .2, 1), box-shadow .3s; will-change: transform; }
.botao > * { position: relative; z-index: 2; }
.botao::after { content: ""; position: absolute; left: var(--mx, 50%); top: var(--my, 50%); width: 0; height: 0; border-radius: 50%; background: radial-gradient(circle, rgba(255, 255, 255, .35), transparent 60%); transform: translate(-50%, -50%); transition: width .5s, height .5s; z-index: 1; }
.botao:hover::after { width: 260px; height: 260px; }
.botao-ciano { background: linear-gradient(120deg, var(--ciano), var(--azul2) 55%, var(--roxo)); background-size: 200% 100%; color: #04112B; box-shadow: var(--brilho); animation: degrade 6s ease infinite; }
@keyframes degrade { 50% { background-position: 100% 0; } }
.botao-ciano:hover { box-shadow: 0 0 34px rgba(34, 211, 238, .75), 0 0 90px rgba(37, 99, 235, .45); }
.botao-contorno, .botao-azul { background: rgba(255, 255, 255, .03); color: #FFFFFF; }
.botao-contorno::before, .botao-azul::before { content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1.5px; background: conic-gradient(from var(--a), transparent 0deg, var(--ciano) 60deg, var(--azul2) 120deg, transparent 180deg, transparent 360deg); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; animation: girar 3.2s linear infinite; z-index: 0; }
.botao-contorno { box-shadow: inset 0 0 0 1px rgba(147, 197, 253, .18); }
.botao-azul { background: linear-gradient(135deg, rgba(37, 99, 235, .35), rgba(34, 211, 238, .12)); box-shadow: inset 0 0 0 1px rgba(147, 197, 253, .2); }
.botao-contorno:hover, .botao-azul:hover { box-shadow: 0 0 26px rgba(34, 211, 238, .35), inset 0 0 18px rgba(34, 211, 238, .15); }
@property --a { syntax: '<angle>'; initial-value: 0deg; inherits: false; }
@keyframes girar { to { --a: 360deg; } }
.botao svg { width: 18px; height: 18px; }
.botao .seta { transition: transform .3s; }
.botao:hover .seta { transform: translateX(4px); }
.topo .botao { padding: 11px 18px; font-size: 13px; }

/* ===== WHATSAPP FLUTUANTE ===== */
.whats { position: fixed; right: 20px; bottom: 20px; z-index: 60; width: 60px; height: 60px; border-radius: 50%; background: var(--verde); color: #FFFFFF; display: flex; align-items: center; justify-content: center; box-shadow: 0 0 30px rgba(37, 211, 102, .5); }
.whats svg { width: 30px; height: 30px; }
.whats::before, .whats::after { content: ""; position: absolute; inset: 0; border-radius: 50%; border: 2px solid var(--verde); animation: onda 2.4s ease-out infinite; }
.whats::after { animation-delay: 1.2s; }
@keyframes onda { from { transform: scale(1); opacity: .8; } to { transform: scale(1.8); opacity: 0; } }

/* ===== SEÇÕES ===== */
section { padding: 110px 0; position: relative; }
.etiqueta { display: inline-flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: 12px; font-weight: 500; letter-spacing: .12em; color: var(--ciano); text-transform: uppercase; padding: 6px 12px; border: 1px solid rgba(34, 211, 238, .3); border-radius: 999px; background: rgba(34, 211, 238, .06); }
.etiqueta::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--ciano); box-shadow: 0 0 10px var(--ciano); animation: piscar 1.6s ease-in-out infinite; }
@keyframes piscar { 50% { opacity: .2; } }
h2 { font-size: clamp(30px, 4.4vw, 50px); font-weight: 800; letter-spacing: -0.03em; line-height: 1.06; margin: 18px 0 16px; text-wrap: balance; }
h2 .grad, h1 .grad { background: linear-gradient(90deg, var(--ciano), var(--azul2), var(--roxo), var(--ciano)); background-size: 300% 100%; -webkit-background-clip: text; background-clip: text; color: transparent; animation: degrade 8s linear infinite; }
.sub { color: var(--cinza); max-width: 640px; margin: 0 0 50px; font-size: 17px; }

/* aparecer ao rolar */
.revelar { opacity: 0; transform: translateY(40px); filter: blur(8px); transition: opacity .9s ease, transform .9s cubic-bezier(.2, .8, .2, 1), filter .9s ease; }
.revelar.visto { opacity: 1; transform: none; filter: none; }

/* cartões de vidro com luz que segue o mouse */
.vidro { position: relative; background: var(--cartao); border: 1px solid var(--linha); border-radius: 22px; backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); overflow: hidden; transition: border-color .3s, transform .3s; }
.vidro::before { content: ""; position: absolute; inset: 0; background: radial-gradient(420px circle at var(--x, 50%) var(--y, 50%), rgba(34, 211, 238, .14), transparent 45%); opacity: 0; transition: opacity .3s; pointer-events: none; }
.vidro:hover { border-color: rgba(34, 211, 238, .45); }
.vidro:hover::before { opacity: 1; }

/* ===== RODAPÉ ===== */
.rodape { border-top: 1px solid var(--linha); color: var(--cinza); padding: 56px 0 90px; font-size: 14px; background: rgba(5, 11, 31, .7); }
.rodape .container { display: flex; flex-wrap: wrap; gap: 28px; align-items: center; justify-content: space-between; }
.rodape a { color: #FFFFFF; text-decoration: none; }
.rodape a:hover { color: var(--ciano); }
.redes { display: flex; gap: 18px; }

/* ===== CELULAR ===== */
@media (max-width: 760px) {
    .menu { display: none; }
    section { padding: 80px 0; }
    .topo .botao span { display: none; }
    .cursor-luz { display: none; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation: none !important; transition: none !important; }
    .revelar { opacity: 1; transform: none; filter: none; }
}