/* ====== Altus Platform — estilos ====== */
:root{
  --bg:#0b1020;
  --bg-alt:#11182e;
  --surface:#161f3a;
  --text:#e7ecf6;
  --muted:#9aa6c4;
  --primary:#4f7cff;
  --primary-2:#7c4dff;
  --line:rgba(255,255,255,.08);
  --radius:16px;
  --shadow:0 18px 50px rgba(0,0,0,.35);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',system-ui,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
.container{width:100%;max-width:1160px;margin:0 auto;padding:0 24px}
a{color:inherit;text-decoration:none}
img{max-width:100%}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  gap:8px;padding:11px 20px;border-radius:12px;font-weight:600;
  font-size:.95rem;cursor:pointer;border:1px solid transparent;
  transition:transform .15s ease,opacity .15s ease,background .2s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{background:rgba(255,255,255,.05)}
.btn-lg{padding:14px 26px;font-size:1.02rem}
.btn-block{width:100%}

.badge{
  display:inline-block;font-size:.78rem;font-weight:600;letter-spacing:.04em;
  text-transform:uppercase;color:#bcd0ff;background:rgba(79,124,255,.12);
  border:1px solid rgba(79,124,255,.25);padding:5px 12px;border-radius:999px;margin-bottom:16px;
}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(11,16,32,.82);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{font-weight:800;font-size:1.25rem;letter-spacing:-.02em}
.logo span{color:var(--primary)}
.nav{display:flex;align-items:center;gap:22px}
.nav a:not(.btn){color:var(--muted);font-weight:500;font-size:.95rem}
.nav a:not(.btn):hover{color:var(--text)}
.nav-toggle{display:none;background:none;border:none;color:var(--text);font-size:1.5rem;cursor:pointer}

/* Hero */
.hero{position:relative;padding:80px 0 70px;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:
  radial-gradient(60% 50% at 80% 0%,rgba(124,77,255,.22),transparent 60%),
  radial-gradient(50% 50% at 10% 20%,rgba(79,124,255,.20),transparent 60%);pointer-events:none}
.hero-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;position:relative}
.hero-text h1{font-size:3rem;line-height:1.1;font-weight:800;letter-spacing:-.03em;margin-bottom:18px}
.grad{background:linear-gradient(135deg,#7cc4ff,#7c4dff);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-text p{color:var(--muted);font-size:1.12rem;max-width:540px;margin-bottom:28px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:36px}
.hero-stats{display:flex;gap:32px;flex-wrap:wrap}
.hero-stats div{display:flex;flex-direction:column}
.hero-stats strong{font-size:1.5rem;font-weight:800}
.hero-stats span{color:var(--muted);font-size:.88rem}
.glass-card{background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.glass-card h3{font-size:1.3rem;margin-bottom:8px}
.glass-card p{color:var(--muted);margin-bottom:16px}
.glass-card ul{list-style:none;margin-bottom:20px}
.glass-card li{padding:7px 0 7px 26px;position:relative;color:var(--text)}
.glass-card li::before{content:"✓";position:absolute;left:0;color:var(--primary);font-weight:700}

/* Sections */
.section{padding:88px 0}
.section-alt{background:var(--bg-alt)}
.section-head{text-align:center;max-width:680px;margin:0 auto 48px}
.section-head h2{font-size:2.2rem;font-weight:800;letter-spacing:-.02em;margin-bottom:12px}
.section-head p{color:var(--muted);font-size:1.08rem}
h2{font-size:2.1rem;font-weight:800;letter-spacing:-.02em;margin-bottom:16px}

/* Grid */
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:1fr 1fr}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.align-center{align-items:center}

/* Cards */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:transform .18s,border-color .18s}
.card:hover{transform:translateY(-4px);border-color:rgba(79,124,255,.4)}
.card .icon{font-size:1.8rem;margin-bottom:12px}
.card h3{font-size:1.2rem;margin-bottom:8px}
.card p{color:var(--muted)}

/* About */
.about-values{display:flex;flex-direction:column;gap:16px}
.value{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px 20px}
.value strong{display:block;margin-bottom:4px}
.value span{color:var(--muted);font-size:.95rem}

/* Steps */
.steps .step{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:24px;text-align:center}
.step-num{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-2));font-weight:800;margin-bottom:12px}
.step h3{font-size:1.1rem;margin-bottom:6px}
.step p{color:var(--muted);font-size:.95rem}

/* Contact / forms */
.contact-list{list-style:none;margin-top:18px}
.contact-list li{padding:8px 0;color:var(--muted)}
.form-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.field{margin-bottom:16px}
.field label{display:block;font-size:.9rem;font-weight:500;margin-bottom:6px}
.field input,.field textarea{
  width:100%;padding:12px 14px;border-radius:10px;border:1px solid var(--line);
  background:var(--bg);color:var(--text);font-family:inherit;font-size:.98rem;transition:border-color .15s;
}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--primary)}
.form-msg{margin-top:14px;font-size:.92rem;min-height:20px}
.form-msg.ok{color:#5ee0a0}
.form-msg.err{color:#ff7a8a}

/* Footer */
.site-footer{background:var(--bg-alt);border-top:1px solid var(--line);padding:48px 0 24px;margin-top:0}
.footer-inner{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap;padding-bottom:28px;border-bottom:1px solid var(--line)}
.footer-inner p{color:var(--muted);margin-top:8px;max-width:320px}
.footer-links{display:flex;gap:20px;flex-wrap:wrap}
.footer-links a{color:var(--muted)}
.footer-links a:hover{color:var(--text)}
.footer-bottom{padding-top:20px;color:var(--muted);font-size:.88rem}

/* Auth pages */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:40px 20px;position:relative;overflow:hidden}
.auth-wrap::before{content:"";position:absolute;inset:0;background:
  radial-gradient(50% 50% at 80% 10%,rgba(124,77,255,.22),transparent 60%),
  radial-gradient(50% 50% at 10% 90%,rgba(79,124,255,.20),transparent 60%)}
.auth-card{position:relative;width:100%;max-width:420px;background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:36px;box-shadow:var(--shadow)}
.auth-card .logo{display:block;text-align:center;margin-bottom:8px}
.auth-card h1{font-size:1.6rem;text-align:center;margin-bottom:6px}
.auth-card .sub{text-align:center;color:var(--muted);margin-bottom:26px;font-size:.95rem}
.auth-alt{text-align:center;margin-top:20px;color:var(--muted);font-size:.95rem}
.auth-alt a{color:var(--primary);font-weight:600}
.back-home{position:absolute;top:24px;left:24px;color:var(--muted);font-size:.9rem}

/* Dashboard */
.dash-header{background:var(--bg-alt);border-bottom:1px solid var(--line)}
.dash-main{padding:48px 0}
.welcome-card{background:linear-gradient(135deg,rgba(79,124,255,.15),rgba(124,77,255,.12));border:1px solid var(--line);border-radius:var(--radius);padding:32px;margin-bottom:28px}
.welcome-card h1{font-size:1.8rem;margin-bottom:6px}
.welcome-card p{color:var(--muted)}

/* Responsive */
@media(max-width:880px){
  .nav{position:fixed;top:68px;right:0;left:0;flex-direction:column;align-items:stretch;background:var(--bg-alt);border-bottom:1px solid var(--line);padding:16px 24px;gap:12px;display:none}
  .nav.open{display:flex}
  .nav-toggle{display:block}
  .hero-inner,.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .hero-text h1{font-size:2.3rem}
  .footer-inner{flex-direction:column}
}