:root{
  --bg:#0e1c24;
  --bg-soft:#132733;
  --panel:#f3f5f7;
  --panel-2:#ffffff;
  --line:#d6dde3;
  --text:#0f1720;
  --muted:#5f6e7a;
  --accent:#7e8a93;
  --accent-2:#4f5b63;
  --white:#ffffff;
  --shadow:0 20px 60px rgba(0,0,0,.18);
  --radius:24px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:'Inter',sans-serif;background:linear-gradient(180deg,#eef2f5 0%,#dfe6eb 100%);color:var(--text)}
img{max-width:100%;display:block}
a{text-decoration:none}
button,input,textarea{font:inherit}

.shell{max-width:1380px;margin:0 auto;padding:26px}
.hero-panel{
  position:relative;overflow:hidden;border-radius:32px;min-height:430px;padding:42px;
  background:
    linear-gradient(120deg, rgba(8,20,28,.86), rgba(19,39,51,.78)),
    url('../imgs/fondo-astillero.png') center/cover no-repeat;
  box-shadow:var(--shadow);
}
.hero-overlay{
  position:absolute;inset:0;
  background:radial-gradient(circle at top right, rgba(255,255,255,.12), transparent 35%),
             radial-gradient(circle at bottom left, rgba(126,138,147,.22), transparent 30%);
}
.hero-content{position:relative;z-index:1;max-width:860px;color:var(--white)}
.hero-badge,.box-tag{
  display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);
  color:#eef4f8;padding:10px 16px;border-radius:999px;font-weight:700;font-size:.84rem;letter-spacing:.02em;
  backdrop-filter:blur(10px)
}
.box-tag{background:#ecf0f3;border-color:#d8e0e6;color:#42515b}
.box-tag.muted{background:#dce3e8;color:#45525b}
.hero-content h1{font-size:clamp(2.3rem,5vw,4.5rem);line-height:1.02;margin:18px 0 16px;font-weight:800}
.hero-content p{font-size:1.08rem;line-height:1.75;max-width:720px;color:#d7e2e9}
.hero-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:30px}
.mini-card{
  display:flex;gap:16px;align-items:flex-start;padding:20px;border-radius:22px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);backdrop-filter:blur(8px)
}
.mini-card i{font-size:1.4rem;color:#e5edf3;margin-top:3px}
.mini-card h3{margin:0 0 6px;font-size:1rem;color:#fff}
.mini-card p{margin:0;font-size:.92rem;line-height:1.5;color:#d4dde4}

.login-section{
  margin-top:-72px;position:relative;z-index:3;display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:stretch
}
.login-visual,.login-box{
  border-radius:30px;background:rgba(255,255,255,.94);box-shadow:var(--shadow);overflow:hidden;border:1px solid rgba(255,255,255,.7)
}
.login-visual{position:relative;min-height:560px;background:#c9d3da}
.login-visual img{width:100%;height:100%;object-fit:cover}
.login-visual-caption{
  position:absolute;left:24px;right:24px;bottom:24px;padding:18px 20px;border-radius:18px;
  background:rgba(15,23,32,.72);backdrop-filter:blur(10px);color:#fff;border:1px solid rgba(255,255,255,.1)
}
.login-visual-caption span{display:block;font-size:.86rem;color:#d7e3ea;margin-bottom:6px}
.login-box{padding:34px 30px;background:linear-gradient(180deg,#ffffff 0%,#eef2f5 100%)}
.login-box h2{margin:16px 0 8px;font-size:2.4rem;line-height:1.05}
.login-copy{margin:0 0 24px;color:var(--muted);line-height:1.7}
.login-form{display:grid;gap:18px}
.field label{display:block;font-size:.93rem;font-weight:700;color:#3f4c56;margin-bottom:9px}
.input-wrap{
  display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);padding:0 14px;border-radius:16px;
  min-height:58px;transition:.25s ease
}
.input-wrap:focus-within{border-color:#8d99a2;box-shadow:0 0 0 4px rgba(126,138,147,.14)}
.input-wrap i{color:#73808a}
.input-wrap input{flex:1;border:none;outline:none;background:transparent;color:#1c2730}
.toggle-pass{border:none;background:transparent;color:#73808a;cursor:pointer;font-size:1rem}
.smart-hints{display:flex;flex-wrap:wrap;gap:10px}
.hint-btn,.btn-secondary{
  border:none;background:#dde3e8;color:#33414b;padding:11px 14px;border-radius:999px;font-weight:700;cursor:pointer;transition:.25s ease
}
.hint-btn:hover,.btn-secondary:hover{background:#cfd7dd;transform:translateY(-1px)}
.btn-primary{
  display:flex;align-items:center;justify-content:center;gap:10px;width:100%;border:none;cursor:pointer;border-radius:18px;
  min-height:58px;background:linear-gradient(135deg,#8c98a1,#5b6973);color:#fff;font-weight:800;font-size:1rem;
  box-shadow:0 12px 30px rgba(79,91,99,.25);transition:.25s ease
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.03)}
.btn-primary:disabled{opacity:.8;cursor:not-allowed}
.form-message{min-height:24px;padding:2px 2px 0;font-size:.95rem;font-weight:600}
.form-message.error{color:#b3261e}
.form-message.success{color:#1d7f49}
.form-message.loading{color:#55636d}

.features{padding:56px 4px 24px}
.section-head h2{margin:14px 0 0;font-size:clamp(1.8rem,3vw,3rem)}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:28px}
.feature-card{
  background:rgba(255,255,255,.82);border:1px solid rgba(211,219,225,.9);border-radius:26px;padding:26px;box-shadow:0 16px 36px rgba(31,45,58,.08)
}
.icon-circle{width:58px;height:58px;border-radius:18px;background:linear-gradient(135deg,#e6ebef,#cfd7dd);display:grid;place-items:center;margin-bottom:16px}
.icon-circle i{font-size:1.2rem;color:#43515b}
.feature-card h3{margin:0 0 10px;font-size:1.1rem}
.feature-card p{margin:0;color:var(--muted);line-height:1.7}
.footer{padding:8px 24px 34px;text-align:center;color:#4f5d67;font-weight:600}

.app-body{background:linear-gradient(180deg,#eef2f5 0%,#d8e0e7 100%);min-height:100vh}
.app-shell{max-width:1080px;margin:0 auto;padding:28px}
.app-topbar{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:18px}
.app-topbar h1{margin:4px 0 0}
.app-topbar small{color:#60707b;font-weight:700}
.app-panel{background:#fff;border-radius:28px;padding:30px;box-shadow:var(--shadow)}
.app-panel h2{margin-top:0}
.app-panel ul{margin-bottom:0}

.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease, transform .7s ease}
.reveal.visible{opacity:1;transform:none}

@media (max-width: 1080px){
  .hero-grid,.feature-grid{grid-template-columns:1fr}
  .login-section{grid-template-columns:1fr;margin-top:24px}
  .login-visual{min-height:360px}
}
@media (max-width: 640px){
  .shell{padding:14px}
  .hero-panel{padding:24px;min-height:auto}
  .hero-content h1{font-size:2.2rem}
  .login-box{padding:22px 18px}
  .login-box h2{font-size:1.9rem}
  .app-topbar{flex-direction:column;align-items:flex-start}
}