/* Smart Dialog AI — shared styles (Concept A: clean light) */
:root{
  --orange:#F4632A; --orange-dark:#D94E17; --orange-light:#FFF1EA;
  --ink:#1A1D23; --gray:#5C636E; --line:#E8EAED; --bg:#FFFFFF; --bg-soft:#FAFAF9;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:'Inter',sans-serif;color:var(--ink);background:var(--bg);line-height:1.6}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}

/* NAV */
nav{position:sticky;top:0;background:rgba(255,255,255,.85);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);z-index:10}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:var(--orange);letter-spacing:-.02em;text-decoration:none}
.logo svg{width:30px;height:30px}
.nav-links{display:flex;gap:32px;font-size:15px;font-weight:500}
.nav-links a{color:var(--gray);text-decoration:none}
.nav-links a:hover,.nav-links a.active{color:var(--ink)}
.nav-links a.active{color:var(--orange-dark)}
@media(max-width:720px){.nav-links{display:none}}

/* BUTTONS */
.btn{display:inline-block;padding:11px 22px;border-radius:8px;font-weight:600;font-size:15px;text-decoration:none;transition:.15s}
.btn-primary{background:var(--orange);color:#fff}
.btn-primary:hover{background:var(--orange-dark)}
.btn-ghost{color:var(--ink);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--ink)}
.btn-lg{padding:14px 30px;font-size:16px}

/* HERO */
.hero{padding:96px 0 80px;text-align:center}
.hero.left{text-align:left}
.eyebrow{display:inline-block;background:var(--orange-light);color:var(--orange-dark);font-size:13px;font-weight:600;padding:6px 14px;border-radius:100px;margin-bottom:24px}
h1{font-size:clamp(38px,6vw,60px);font-weight:800;letter-spacing:-.03em;line-height:1.08;max-width:840px;margin:0 auto 24px}
.hero.left h1{margin-left:0}
h1 em{font-style:normal;color:var(--orange)}
.sub{font-size:19px;color:var(--gray);max-width:640px;margin:0 auto 36px}
.hero.left .sub{margin-left:0}
.hero-ctas{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.hero.left .hero-ctas{justify-content:flex-start}

/* CHANNEL CHIPS */
.channels{display:flex;gap:10px;justify-content:center;margin-top:56px;flex-wrap:wrap}
.chip{display:flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:100px;padding:8px 18px;font-size:14px;font-weight:500;color:var(--gray);background:#fff}
.dot{width:8px;height:8px;border-radius:50%;background:var(--orange)}

/* SECTIONS */
section{padding:80px 0}
.kicker{color:var(--orange);font-weight:700;font-size:13px;text-transform:uppercase;letter-spacing:.1em;margin-bottom:12px}
h2{font-size:clamp(28px,4vw,40px);font-weight:800;letter-spacing:-.02em;line-height:1.15;margin-bottom:16px}
h2 em{font-style:normal;color:var(--orange)}
.section-sub{color:var(--gray);font-size:17px;max-width:600px;margin-bottom:48px}
.center{text-align:center}
.center .section-sub{margin-left:auto;margin-right:auto}

/* GRIDS & CARDS */
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
@media(max-width:860px){.grid3,.grid4{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.grid2,.grid3,.grid4{grid-template-columns:1fr}}
.card{border:1px solid var(--line);border-radius:16px;padding:36px;background:var(--bg-soft);transition:.2s}
.card:hover{border-color:var(--orange);box-shadow:0 8px 32px rgba(244,99,42,.08)}
.card .tag{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--orange);margin-bottom:14px}
.card h3{font-size:24px;font-weight:700;margin-bottom:10px;letter-spacing:-.01em}
.card p{color:var(--gray);font-size:15.5px;margin-bottom:20px}
.card a{color:var(--orange-dark);font-weight:600;font-size:15px;text-decoration:none}
.card a:hover{text-decoration:underline}

.svc{background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px}
.svc .ico{width:44px;height:44px;border-radius:10px;background:var(--orange-light);display:flex;align-items:center;justify-content:center;margin-bottom:18px;font-size:20px}
.svc h4{font-size:17px;font-weight:700;margin-bottom:8px}
.svc p{color:var(--gray);font-size:14.5px}

.soft{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* STEPS (numbered list) */
.steps{counter-reset:step;display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media(max-width:720px){.steps{grid-template-columns:1fr}}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px 26px 26px 74px}
.step::before{counter-increment:step;content:counter(step,decimal-leading-zero);position:absolute;left:24px;top:26px;font-weight:800;font-size:15px;color:var(--orange);background:var(--orange-light);width:34px;height:34px;border-radius:9px;display:flex;align-items:center;justify-content:center}
.step h4{font-size:16.5px;font-weight:700;margin-bottom:6px}
.step p{color:var(--gray);font-size:14.5px}

/* CHECKLIST */
.checks{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:12px 28px}
@media(max-width:640px){.checks{grid-template-columns:1fr}}
.checks li{position:relative;padding-left:30px;font-size:15.5px;color:var(--ink)}
.checks li::before{content:"✓";position:absolute;left:0;top:0;color:var(--orange);font-weight:800}

/* STATS */
.stats{display:flex;justify-content:space-around;text-align:center;padding:56px 0;flex-wrap:wrap;gap:24px}
.stat b{display:block;font-size:44px;font-weight:800;color:var(--orange);letter-spacing:-.02em}
.stat span{color:var(--gray);font-size:14px;font-weight:500}

/* SPLIT LAYOUT */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
@media(max-width:820px){.split{grid-template-columns:1fr}}

/* CONVERSATION DEMO */
.demo{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:0 12px 40px rgba(26,29,35,.06)}
.demo-bar{display:flex;align-items:center;gap:8px;padding:12px 18px;border-bottom:1px solid var(--line);font-size:13px;color:var(--gray);font-weight:500}
.demo-body{padding:22px 24px}
.msg{display:flex;gap:10px;margin-bottom:14px}
.msg:last-child{margin-bottom:0}
.who{flex-shrink:0;font-weight:700;font-size:11.5px;padding:3px 10px;border-radius:6px;height:fit-content;text-transform:uppercase;letter-spacing:.04em}
.caller .who{background:var(--bg-soft);border:1px solid var(--line);color:var(--gray)}
.ai .who{background:var(--orange-light);color:var(--orange-dark)}
.msg p{color:var(--ink);font-size:14.5px}

/* CTA */
.cta{text-align:center;background:linear-gradient(180deg,#fff,var(--orange-light))}

/* FORMS */
.form{max-width:560px}
.form label{display:block;font-size:14px;font-weight:600;margin:18px 0 6px}
.form input,.form select,.form textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:8px;font-family:inherit;font-size:15px;background:#fff}
.form input:focus,.form select:focus,.form textarea:focus{outline:2px solid var(--orange);border-color:transparent}
.form button{margin-top:24px;cursor:pointer;border:none}

/* PAGE HERO (interior pages) */
.page-hero{padding:80px 0 64px;border-bottom:1px solid var(--line);background:linear-gradient(180deg,var(--bg-soft),#fff)}

/* TABLE-LIKE FEATURE ROWS */
.frow{display:grid;grid-template-columns:220px 1fr;gap:24px;padding:22px 0;border-bottom:1px solid var(--line)}
@media(max-width:640px){.frow{grid-template-columns:1fr;gap:6px}}
.frow h5{font-size:15.5px;font-weight:700}
.frow p{color:var(--gray);font-size:15px}

/* FOOTER */
footer{border-top:1px solid var(--line);padding:48px 0;color:var(--gray);font-size:14px}
.foot-grid{display:flex;justify-content:space-between;flex-wrap:wrap;gap:24px}
.foot-links{display:flex;gap:24px;flex-wrap:wrap}
.foot-links a{color:var(--gray);text-decoration:none}
.foot-links a:hover{color:var(--ink)}