:root {
    --navy: #0e2240;
    --navy-2: #16335e;
    --blue: #1f6feb;
    --blue-dark: #1558c0;
    --green-dark: #1eb858;
    --green: #3ad775;
    --gold: #f0a738;
    --bg: #faf9f6;          /* cálido, no frío */
    --text: #2a3548;
    --muted: #5d6b82;
    --white: #ffffff;
    --border: #e9e5dc;
    --radius: 16px;
    --shadow: 0 8px 30px rgba(14, 34, 64, 0.08);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.65;
    font-size: 17px; /* base más grande: legibilidad ante todo */
}
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* ===== Header ===== */
header {
    position: sticky; top: 0; z-index: 100;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.logo { font-weight: 900; font-size: 1.35rem; color: var(--navy); text-decoration: none; letter-spacing: -0.5px; }
.logo span { color: var(--blue); }
.nav-links { display: flex; gap: 26px; align-items: center; }
.nav-links a { text-decoration: none; color: var(--muted); font-weight: 600; font-size: 0.95rem; transition: color .2s; }
.nav-links a:hover { color: var(--navy); }
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 10px;
    padding: 14px 28px; border-radius: 12px;
    font-weight: 700; font-size: 1rem; text-decoration: none;
    transition: all .2s; border: none; cursor: pointer; font-family: inherit;
}
.btn-primary { background: var(--blue); color: var(--white); }
.btn-primary:hover { background: var(--blue-dark); transform: translateY(-1px); }
.btn-light { background: var(--white); color: var(--navy); border: 1px solid var(--border); }
.btn-light:hover { background: #f3efe7; }
.btn-lg { padding: 17px 34px; font-size: 1.08rem; }
.nav-links .btn { padding: 11px 22px; font-size: .95rem; }
.nav-links .btn-primary,
.nav-links .btn-primary:hover { color: var(--white); }
.wa-icon { width: 22px; height: 22px; flex-shrink: 0; }

/* ===== Hero ===== */
.hero {
    background: linear-gradient(165deg, var(--navy) 0%, var(--navy-2) 60%, #1d4377 100%);
    color: var(--white); padding: 88px 0 96px; position: relative; overflow: hidden;
}
.hero::after {
    content: ''; position: absolute; right: -160px; top: -100px;
    width: 520px; height: 520px; border-radius: 50%;
    background: radial-gradient(circle, rgba(240,167,56,.18), transparent 70%);
}
.hero-inner { position: relative; z-index: 1; max-width: 740px; }
.eyebrow {
    display: inline-block; background: rgba(240,167,56,.14); color: var(--gold);
    border: 1px solid rgba(240,167,56,.4);
    padding: 7px 18px; border-radius: 100px; font-size: 0.88rem; font-weight: 700;
    margin-bottom: 26px; letter-spacing: .2px;
}
.hero h1 {
    font-size: clamp(2rem, 4.6vw, 3.2rem); font-weight: 900;
    line-height: 1.15; letter-spacing: -1px; margin-bottom: 22px;
}
.hero h1 em { font-style: normal; color: #7db8ff; }
.hero p.lead { font-size: 1.22rem; color: #c9d6ea; margin-bottom: 14px; max-width: 660px; }
.hero p.lead strong { color: var(--white); }
.hero-ctas { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; margin-top: 34px; }
.hero-note { margin-top: 18px; font-size: .92rem; color: #93a8c7; }

/* Mini chat demo en el hero */
.chat-demo {
    margin-top: 44px; background: rgba(255,255,255,.07);
    border: 1px solid rgba(255,255,255,.12); border-radius: var(--radius);
    padding: 22px 24px; max-width: 480px;
}
.chat-demo .chat-title { font-size: .82rem; color: #93a8c7; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 14px; }
.bubble {
    border-radius: 14px; padding: 12px 16px; font-size: .95rem; margin-bottom: 10px; max-width: 88%;
    line-height: 1.5;
}
.bubble.missed { background: rgba(255,255,255,.1); color: #c9d6ea; font-style: italic; font-size: .85rem; text-align: center; max-width: 100%; }
.bubble.out { background: var(--green); color: #fff; margin-left: auto; }
.bubble .time { display: block; font-size: .72rem; opacity: .8; margin-top: 4px; text-align: right; }

/* ===== Trust bar ===== */
.trustbar { background: var(--white); border-bottom: 1px solid var(--border); padding: 26px 0; }
.trust-items {
    display: flex; justify-content: center; gap: 44px; flex-wrap: wrap;
    color: var(--muted); font-weight: 600; font-size: .95rem;
}

/* ===== Carriers carousel ===== */
.carriers { background: var(--white); padding: 46px 0 50px; border-bottom: 1px solid var(--border); overflow: hidden; }
.carriers-title {
    text-align: center; color: var(--muted); font-weight: 700; font-size: .9rem;
    text-transform: uppercase; letter-spacing: 1.2px; margin-bottom: 30px;
}
.marquee { position: relative; width: 100%; overflow: hidden; -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.marquee-track { display: flex; width: max-content; gap: 18px; animation: marquee 42s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.carrier {
    flex-shrink: 0; height: 62px; min-width: 168px; padding: 0 26px;
    display: flex; align-items: center; justify-content: center;
    background: var(--bg); border: 1px solid var(--border); border-radius: 14px;
    font-weight: 900; font-size: 1.18rem; letter-spacing: -.4px; color: var(--navy);
    white-space: nowrap; transition: transform .2s, box-shadow .2s;
}
.carrier:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.carrier small { font-weight: 700; font-size: .95rem; }
@media (prefers-reduced-motion: reduce) { .marquee-track { animation: none; } }

/* ===== Sections ===== */
section { padding: 84px 0; }
.section-head { text-align: center; max-width: 700px; margin: 0 auto 54px; }
.section-head .kicker {
    color: var(--blue); font-weight: 800; text-transform: uppercase;
    font-size: .82rem; letter-spacing: 1.5px; margin-bottom: 12px;
}
.section-head h2 {
    font-size: clamp(1.7rem, 3vw, 2.35rem); font-weight: 900;
    color: var(--navy); letter-spacing: -.5px; margin-bottom: 16px; line-height: 1.2;
}
.section-head p { color: var(--muted); font-size: 1.1rem; }

/* ===== Pain (día a día) ===== */
.pain { background: var(--white); }
.pain-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.pain h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 900; letter-spacing: -.5px; line-height: 1.25; margin-bottom: 20px; color: var(--navy); }
.pain p { color: var(--muted); margin-bottom: 16px; font-size: 1.05rem; }
.pain p strong { color: var(--navy); }
.day-list { list-style: none; }
.day-list li {
    background: var(--bg); border: 1px solid var(--border); border-radius: 12px;
    padding: 18px 20px; margin-bottom: 12px; display: flex; gap: 14px; align-items: flex-start;
    font-size: .98rem; color: var(--text);
}
.day-list .emoji { font-size: 1.3rem; flex-shrink: 0; }

/* ===== Use cases ===== */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
    background: var(--white); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 30px 26px; box-shadow: var(--shadow); transition: transform .2s, box-shadow .2s;
    display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 14px 40px rgba(14,34,64,.12); }
.card .icon {
    width: 54px; height: 54px; border-radius: 14px; display: flex;
    align-items: center; justify-content: center; margin-bottom: 18px;
    background: linear-gradient(135deg, #fdf3e3, #fbe7c4); font-size: 1.6rem;
}
.card h3 { color: var(--navy); font-size: 1.18rem; font-weight: 800; margin-bottom: 10px; line-height: 1.3; }
.card p { color: var(--muted); font-size: .97rem; flex: 1; }
.card .result {
    margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--border);
    font-size: .9rem; font-weight: 700; color: var(--blue);
}

/* ===== No robótico ===== */
.human { background: var(--navy); color: var(--white); }
.human-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.human h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 900; letter-spacing: -.5px; line-height: 1.25; margin-bottom: 20px; }
.human p { color: #c9d6ea; margin-bottom: 16px; font-size: 1.05rem; }
.human p strong { color: var(--white); }
.compare { display: grid; gap: 16px; }
.compare .msg {
    border-radius: 14px; padding: 18px 20px; font-size: .96rem; line-height: 1.55;
}
.compare .bad { background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.12); color: #93a8c7; }
.compare .good { background: var(--green); color: #fff; }
.compare .tag { display: block; font-size: .72rem; font-weight: 800; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 8px; opacity: .85; }

/* ===== How it works ===== */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; counter-reset: step; }
.step {
    background: var(--white); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 34px 28px 28px; position: relative; box-shadow: var(--shadow);
}
.step::before {
    counter-increment: step; content: counter(step);
    position: absolute; top: -19px; left: 26px;
    width: 40px; height: 40px; border-radius: 50%;
    background: var(--gold); color: var(--navy);
    display: flex; align-items: center; justify-content: center;
    font-weight: 900; font-size: 1.05rem; box-shadow: 0 4px 12px rgba(240,167,56,.4);
}
.step h3 { color: var(--navy); font-size: 1.12rem; font-weight: 800; margin: 8px 0 10px; }
.step p { color: var(--muted); font-size: .96rem; }

/* ===== Regiones ===== */
.regions { background: var(--white); text-align: center; }
.region-pills { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; margin-top: 8px; }
.pill {
    background: var(--bg); border: 1px solid var(--border); border-radius: 100px;
    padding: 10px 22px; font-weight: 700; font-size: .95rem; color: var(--navy);
}
.pill span { color: var(--muted); font-weight: 500; }

/* ===== CTA / Demo ===== */
.demo { background: linear-gradient(165deg, var(--navy) 0%, #1d4377 100%); color: var(--white); }
.demo-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.demo h2 { font-size: clamp(1.7rem, 3vw, 2.35rem); font-weight: 900; letter-spacing: -.5px; line-height: 1.2; margin-bottom: 18px; }
.demo .sub { color: #c9d6ea; margin-bottom: 28px; font-size: 1.08rem; }
.demo ul { list-style: none; margin-bottom: 30px; }
.demo li { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 15px; color: #dbe5f3; font-size: 1rem; }
.demo li svg { flex-shrink: 0; margin-top: 4px; }
.wa-block {
    background: rgba(37,211,102,.12); border: 1px solid rgba(37,211,102,.35);
    border-radius: var(--radius); padding: 22px 24px; margin-top: 8px;
}
.wa-block p { color: #d6f5e2; font-size: .95rem; margin-bottom: 14px; }
.form-card {
    background: var(--white); border-radius: var(--radius); padding: 36px;
    box-shadow: 0 20px 60px rgba(0,0,0,.3); color: var(--text);
}
.form-card h3 { color: var(--navy); font-size: 1.35rem; font-weight: 900; margin-bottom: 6px; }
.form-card .form-sub { color: var(--muted); font-size: .95rem; margin-bottom: 24px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: .88rem; font-weight: 700; color: var(--navy); margin-bottom: 6px; }
.field input, .field select {
    width: 100%; padding: 13px 15px; border: 1px solid var(--border); border-radius: 10px;
    font-family: inherit; font-size: 1rem; color: var(--text); background: var(--bg);
    transition: border-color .2s;
}
.field input:focus, .field select:focus { outline: none; border-color: var(--blue); }
.form-card .btn { width: 100%; margin-top: 6px; }
.form-privacy { font-size: .8rem; color: var(--muted); text-align: center; margin-top: 14px; }
.form-success { display: none; text-align: center; padding: 40px 10px; }
.form-success .check { font-size: 3rem; margin-bottom: 12px; }
.form-success h3 { margin-bottom: 8px; }
.form-success p { color: var(--muted); font-size: .96rem; }

/* ===== FAQ ===== */
.faq-list { max-width: 780px; margin: 0 auto; }
details {
    background: var(--white); border: 1px solid var(--border); border-radius: 14px;
    margin-bottom: 12px; overflow: hidden;
}
summary {
    padding: 20px 24px; font-weight: 700; color: var(--navy); cursor: pointer;
    list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 16px;
    font-size: 1.02rem;
}
summary::-webkit-details-marker { display: none; }
summary::after { content: '+'; font-size: 1.5rem; color: var(--blue); font-weight: 400; flex-shrink: 0; }
details[open] summary::after { content: '−'; }
details .answer { padding: 0 24px 20px; color: var(--muted); font-size: .98rem; }

/* ===== Footer ===== */
footer { background: var(--navy); color: #93a8c7; padding: 48px 0 32px; }
.footer-grid { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px; }
footer .logo { color: var(--white); }
footer a { color: #c9d6ea; text-decoration: none; font-size: .92rem; }
footer a:hover { color: var(--white); }
.footer-links { display: flex; gap: 24px; flex-wrap: wrap; }
.copyright { font-size: .82rem; margin-top: 24px; text-align: center; width: 100%; border-top: 1px solid rgba(255,255,255,.08); padding-top: 24px; }

/* ===== Responsive ===== */
@media (max-width: 920px) {
    .cards, .steps { grid-template-columns: 1fr 1fr; }
    .pain-grid, .human-grid, .demo-grid { grid-template-columns: 1fr; gap: 40px; }
    .nav-links a:not(.btn) { display: none; }
}
@media (max-width: 600px) {
    .cards, .steps { grid-template-columns: 1fr; }
    section { padding: 60px 0; }
    .hero { padding: 64px 0 72px; }
    body { font-size: 16px; }
}