/* ════════════════════════════════════════════════════════════
   TDSCITY — SHARED DESIGN SYSTEM  (Restrained Enterprise)
   One accent · generous whitespace · real product · honest copy
   Loaded once via header.php. Restyle the whole marketing site here.
════════════════════════════════════════════════════════════ */
:root{
  --ink:#0b1220; --body:#4a5568; --muted:#8a94a6;
  --line:#e7eaef; --line-2:#d7dce4;
  --bg:#ffffff; --bg-alt:#f7f9fc; --bg-ink:#0b1220;
  --accent:#2451d8; --accent-2:#1b3cb0; --accent-soft:#eef2fe;
  --ok:#1f9d63; --warn:#c2410c;
  --r-sm:8px; --r-md:12px; --r-lg:18px; --r-xl:26px;
  --fd:'Outfit',sans-serif; --fb:'Inter',sans-serif;
  --shadow:0 1px 2px rgba(16,24,40,.04),0 12px 32px -12px rgba(16,24,40,.14);
  --shadow-lg:0 30px 60px -24px rgba(16,24,40,.28);
}

/* the marketing body (header/footer keep Tailwind; .site-main scopes our styles) */
.site-main *,.site-main *::before,.site-main *::after{box-sizing:border-box}
.site-main{font-family:var(--fb);color:var(--body);-webkit-font-smoothing:antialiased;line-height:1.6}
.site-main img{max-width:100%;display:block}
.site-main a{text-decoration:none;color:inherit}
.site-main button{font-family:var(--fb);cursor:pointer;border:none;background:none}
.site-main ::selection{background:var(--accent-soft)}

.w{max-width:1140px;margin:0 auto;padding:0 24px}
@media(min-width:768px){.w{padding:0 40px}}
.w-narrow{max-width:840px;margin:0 auto;padding:0 24px}
.sec{padding:88px 0}
.sec-sm{padding:56px 0}
@media(max-width:768px){.sec{padding:60px 0}.sec-sm{padding:44px 0}}
.alt{background:var(--bg-alt)}
.center{text-align:center}
.mxw{max-width:640px}.center .mxw{margin-left:auto;margin-right:auto}
.mt-s{margin-top:14px}.mt-m{margin-top:22px}.mt-l{margin-top:40px}

/* type */
.kicker{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
.kicker::before{content:"";width:18px;height:1.5px;background:var(--accent);display:inline-block}
.site-main h1,.site-main h2,.site-main h3,.site-main h4{font-family:var(--fd);color:var(--ink);letter-spacing:-.025em;line-height:1.1;font-weight:700}
.h-hero{font-size:clamp(2.3rem,5vw,3.6rem);font-weight:800;line-height:1.05}
.h2{font-size:clamp(1.8rem,3.4vw,2.5rem)}
.h3{font-size:clamp(1.2rem,2.1vw,1.45rem)}
.h4{font-size:1.05rem}
.lead{font-size:clamp(1.05rem,1.6vw,1.18rem);line-height:1.65;color:var(--body)}
.muted{color:var(--muted)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-weight:600;font-size:15px;border-radius:var(--r-md);padding:13px 24px;transition:all .18s ease;white-space:nowrap}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-2);transform:translateY(-1px)}
.btn-outline{background:#fff;color:var(--ink);border:1px solid var(--line-2)}
.btn-outline:hover{border-color:var(--ink);transform:translateY(-1px)}
.btn-lg{padding:15px 30px;font-size:16px}
.btn-ghost-light{color:#fff;border:1px solid rgba(255,255,255,.22)}
.btn-ghost-light:hover{background:rgba(255,255,255,.08)}

/* page hero (inner pages) */
.page-hero{padding:72px 0 56px;background:radial-gradient(120% 80% at 50% -20%,var(--accent-soft) 0%,transparent 55%);text-align:center}
@media(max-width:768px){.page-hero{padding:52px 0 40px}}
.page-hero .kicker{margin-bottom:18px}
.page-hero .lead{max-width:620px;margin:18px auto 0}

/* screenshot frame */
.shot{border:1px solid var(--line-2);border-radius:var(--r-lg);overflow:hidden;background:#fff;box-shadow:var(--shadow)}
.shot-bar{display:flex;align-items:center;gap:7px;padding:11px 14px;background:#f3f5f9;border-bottom:1px solid var(--line)}
.shot-bar i{width:10px;height:10px;border-radius:50%;display:block}
.shot-bar .d1{background:#ff5f57}.shot-bar .d2{background:#febc2e}.shot-bar .d3{background:#28c840}
.shot-url{flex:1;text-align:center;font-size:11.5px;color:var(--muted);font-weight:500}
.shot-body{position:relative;aspect-ratio:16/10;background:linear-gradient(180deg,#fbfcfe,#f2f5fa)}
.shot-body>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:top}
.shot-ph{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;color:var(--muted);text-align:center;padding:24px}
.shot-ph i{font-size:30px;opacity:.5}
.shot-ph code{font-family:ui-monospace,Menlo,monospace;font-size:12px;background:#fff;border:1px dashed var(--line-2);padding:4px 10px;border-radius:6px;color:var(--accent)}

/* generic grids */
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:980px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.g2,.g3,.g4{grid-template-columns:1fr}}

/* split (text + visual) */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
@media(max-width:900px){.split{grid-template-columns:1fr;gap:40px}}

/* feature card */
.fcard{border:1px solid var(--line);border-radius:var(--r-lg);background:#fff;padding:26px;transition:border-color .2s,box-shadow .2s,transform .2s}
.fcard:hover{border-color:var(--line-2);box-shadow:var(--shadow);transform:translateY(-2px)}
.fcard .ico{width:44px;height:44px;border-radius:11px;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:16px}
.fcard h4{font-size:1.05rem;color:var(--ink);margin-bottom:8px;font-weight:700}
.fcard p{font-size:13.5px;color:var(--body);line-height:1.6}
.fcard ul{list-style:none;margin:12px 0 0;padding:0;display:flex;flex-direction:column;gap:7px}
.fcard ul li{display:flex;gap:8px;align-items:flex-start;font-size:13px;color:var(--body)}
.fcard ul li i{color:var(--accent);font-size:11px;margin-top:4px;flex-shrink:0}

/* category block heading */
.cathead{display:flex;align-items:center;gap:14px;margin-bottom:24px}
.cathead .ci{width:46px;height:46px;border-radius:12px;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-size:19px;flex-shrink:0}
.cathead h3{font-size:1.4rem;color:var(--ink)}
.cathead p{font-size:13.5px;color:var(--muted);margin-top:2px}

/* feature row list (alternating) */
.module{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;padding:52px 0}
.module+.module{border-top:1px solid var(--line)}
@media(max-width:900px){.module{grid-template-columns:1fr;gap:32px;padding:36px 0}.module .shot{order:2}.module .mcopy{order:1}}
.module.flip .mcopy{order:2}.module.flip .shot{order:1}
@media(max-width:900px){.module.flip .mcopy{order:1}.module.flip .shot{order:2}}
.module .ico{width:44px;height:44px;border-radius:11px;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:16px}
.feat{list-style:none;display:flex;flex-direction:column;gap:10px;margin:16px 0 0;padding:0}
.feat li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--body)}
.feat li i{color:var(--accent);font-size:13px;margin-top:4px;flex-shrink:0}
.feat li b{color:var(--ink);font-weight:600}

/* timeline (how it works) */
.tl{position:relative;max-width:860px;margin:0 auto;padding-left:0}
.tl-step{display:grid;grid-template-columns:64px 1fr;gap:24px;padding-bottom:36px;position:relative}
.tl-step:not(:last-child)::before{content:"";position:absolute;left:31px;top:64px;bottom:0;width:2px;background:var(--line)}
.tl-num{width:64px;height:64px;border-radius:16px;background:var(--accent-soft);color:var(--accent);font-family:var(--fd);font-weight:800;font-size:1.3rem;display:flex;align-items:center;justify-content:center;z-index:1}
.tl-body h4{font-size:1.15rem;color:var(--ink);margin-bottom:8px}
.tl-body p{font-size:14px;color:var(--body);line-height:1.65}
.tl-body .tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.tag{font-size:12px;font-weight:600;color:var(--accent);background:var(--accent-soft);padding:5px 11px;border-radius:99px}

/* stats row */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
@media(max-width:760px){.stats{grid-template-columns:1fr 1fr}}
.stat{text-align:center;padding:24px 16px;border:1px solid var(--line);border-radius:var(--r-lg);background:#fff}
.stat .n{font-family:var(--fd);font-size:2rem;font-weight:800;color:var(--ink);letter-spacing:-.03em;line-height:1}
.stat .l{font-size:12px;color:var(--muted);font-weight:600;margin-top:7px;text-transform:uppercase;letter-spacing:.06em}

/* comparison table */
.cmp{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;font-size:14px}
.cmp th,.cmp td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line)}
.cmp thead th{background:var(--bg-alt);font-family:var(--fd);color:var(--ink);font-weight:700;font-size:13.5px}
.cmp thead th.col{text-align:center;width:120px}
.cmp thead th.hi{color:var(--accent)}
.cmp td.col{text-align:center}
.cmp td.cat{font-weight:700;color:var(--ink);background:#fbfcfe}
.cmp .yes{color:var(--ok);font-weight:700}
.cmp .no{color:var(--line-2)}
.cmp tr:last-child td{border-bottom:none}
.cmp-scroll{overflow-x:auto;border-radius:var(--r-lg)}

/* dark band */
.dark{background:var(--bg-ink);color:#c7cedb}
.dark .kicker{color:#7aa0ff}.dark .kicker::before{background:#7aa0ff}
.dark h1,.dark h2,.dark h3,.dark h4{color:#fff}
.sec-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
@media(max-width:680px){.sec-cards{grid-template-columns:1fr}}
.sec-card{background:#121a2c;border:1px solid #1e2942;border-radius:var(--r-md);padding:24px}
.sec-card i{color:#7aa0ff;font-size:18px;margin-bottom:14px;display:block}
.sec-card h4{color:#fff;font-size:1rem;font-weight:700;margin-bottom:7px}
.sec-card p{font-size:13px;color:#9aa6bd;line-height:1.6}

/* prose (about / legal) */
.prose{max-width:760px;margin:0 auto;font-size:15.5px;line-height:1.8;color:var(--body)}
.prose h2{font-size:1.5rem;margin:36px 0 14px}
.prose h3{font-size:1.2rem;margin:28px 0 10px}
.prose p{margin-bottom:16px}
.prose ul{margin:0 0 16px 22px}
.prose li{margin-bottom:8px}
.prose a{color:var(--accent);font-weight:600}

/* pricing cards */
.price-toggle{display:flex;align-items:center;justify-content:center;gap:14px;margin:28px 0 44px}
.price-toggle .lbl{font-size:14px;font-weight:600;color:var(--muted)}
.price-toggle .lbl.active{color:var(--ink)}
.tg{width:50px;height:28px;border-radius:99px;background:var(--line-2);position:relative;transition:.2s}
.tg.on{background:var(--accent)}
.tg span{position:absolute;top:3px;left:3px;width:22px;height:22px;border-radius:50%;background:#fff;transition:.2s cubic-bezier(.16,1,.3,1);box-shadow:0 1px 3px rgba(0,0,0,.2)}
.tg.on span{transform:translateX(22px)}
.save{font-size:12px;font-weight:700;color:var(--ok);background:#e6f6ee;border:1px solid #c6ead5;padding:3px 9px;border-radius:99px;opacity:0;transition:.2s}
.save.show{opacity:1}
.plans{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;align-items:stretch}
@media(max-width:1000px){.plans{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.plans{grid-template-columns:1fr;max-width:380px;margin:0 auto}}
.plan{display:flex;flex-direction:column;border:1px solid var(--line-2);border-radius:var(--r-lg);padding:28px 24px;background:#fff;position:relative}
.plan.feat-plan{border-color:var(--accent);box-shadow:0 18px 40px -20px rgba(36,81,216,.4)}
.plan-badge{position:absolute;top:-11px;left:50%;transform:translateX(-50%);background:var(--accent);color:#fff;font-size:11px;font-weight:700;letter-spacing:.04em;padding:4px 14px;border-radius:99px}
.plan-name{font-family:var(--fd);font-size:1.05rem;font-weight:700;color:var(--ink)}
.plan-price{display:flex;align-items:baseline;gap:5px;margin:14px 0 4px;min-height:48px}
.plan-price .num{font-family:var(--fd);font-size:2.3rem;font-weight:800;color:var(--ink);letter-spacing:-.03em;line-height:1}
.plan-price .per{font-size:13px;color:var(--muted);font-weight:600}
.plan-desc{font-size:13px;color:var(--body);line-height:1.55;margin:8px 0 20px;min-height:54px}
.plan ul{list-style:none;display:flex;flex-direction:column;gap:11px;margin-bottom:24px;flex-grow:1;padding:0}
.plan li{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--body)}
.plan li i{color:var(--accent);font-size:12px;margin-top:4px;flex-shrink:0}
.plan li.off{color:var(--muted)}.plan li.off i{color:var(--line-2)}
.plan .btn{width:100%;margin-top:auto}

/* faq */
.faq{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:768px){.faq{grid-template-columns:1fr}}
.faq details{border:1px solid var(--line);border-radius:var(--r-md);background:#fff;overflow:hidden}
.faq details[open]{border-color:var(--line-2)}
.faq summary{display:flex;justify-content:space-between;gap:12px;align-items:center;padding:18px 20px;cursor:pointer;list-style:none;font-weight:600;font-size:14.5px;color:var(--ink)}
.faq summary::-webkit-details-marker{display:none}
.faq summary i{color:var(--muted);font-size:12px;transition:.2s}
.faq details[open] summary i{transform:rotate(180deg);color:var(--accent)}
.faq .ans{padding:0 20px 18px;font-size:13.5px;color:var(--body);line-height:1.7}

/* forms (shared by demo + contact) */
.form-card{border:1px solid var(--line-2);border-radius:var(--r-xl);overflow:hidden;background:#fff;box-shadow:var(--shadow-lg);display:grid;grid-template-columns:5fr 7fr}
@media(max-width:900px){.form-card{grid-template-columns:1fr}}
.form-left{padding:48px 40px;background:var(--bg-ink);color:#c7cedb}
@media(max-width:900px){.form-left{padding:36px 28px}}
.form-left h3{color:#fff;margin:14px 0 12px}
.form-left>p{font-size:14px;color:#9aa6bd;line-height:1.6}
.form-perks{display:flex;flex-direction:column;gap:20px;margin-top:32px}
.form-perk{display:flex;gap:14px;align-items:flex-start}
.form-perk i{width:38px;height:38px;border-radius:10px;background:#162038;color:#7aa0ff;display:flex;align-items:center;justify-content:center;font-size:15px;flex-shrink:0}
.form-perk b{color:#fff;font-size:14px;font-weight:600;display:block;margin-bottom:2px}
.form-perk p{font-size:12.5px;color:#9aa6bd}
.form-right{padding:44px 40px}
@media(max-width:900px){.form-right{padding:34px 26px}}
.form-steps{display:flex;align-items:center;gap:8px;margin-bottom:28px}
.form-step{display:flex;align-items:center;gap:8px}
.step-num{width:28px;height:28px;border-radius:50%;background:var(--bg-alt);border:1px solid var(--line-2);color:var(--muted);font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center}
.step-num.active{background:var(--accent);border-color:var(--accent);color:#fff}
.step-num.done{background:var(--ok);border-color:var(--ok);color:#fff}
.step-label{font-size:12.5px;font-weight:600;color:var(--muted)}
.step-label.active,.step-label.done{color:var(--ink)}
.step-line{flex:1;height:1.5px;background:var(--line-2)}
.step-line.active,.step-line.done{background:var(--accent)}
.form-page{display:none}.form-page.active{display:block;animation:fade .25s ease}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:560px){.form-row{grid-template-columns:1fr}}
.form-group{margin-bottom:16px;position:relative}
.form-label{display:block;font-size:12px;font-weight:600;color:var(--ink);margin-bottom:7px}
.form-label span{color:#dc2626}
.form-input{width:100%;padding:12px 14px;border:1px solid var(--line-2);border-radius:var(--r-sm);font-size:14px;color:var(--ink);font-family:var(--fb);outline:none;transition:.15s;background:#fff}
.has-icon .form-input{padding-left:40px}
.form-icon{position:absolute;left:14px;top:35px;color:var(--muted);font-size:13px}
.form-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.form-input.error{border-color:#dc2626}
.field-error{display:none;font-size:11.5px;color:#dc2626;margin-top:5px}
.field-error.show{display:block}
.form-select-wrap{position:relative}
.form-select-arrow{position:absolute;right:14px;top:50%;transform:translateY(-50%);color:var(--muted);font-size:12px;pointer-events:none}
.form-nav{display:flex;justify-content:space-between;align-items:center;margin-top:24px}
.btn-next,.btn-submit{background:var(--accent);color:#fff;padding:12px 22px;border-radius:var(--r-md);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:8px}
.btn-next:hover,.btn-submit:hover{background:var(--accent-2)}
.btn-back{color:var(--muted);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:8px}
.btn-back:hover{color:var(--ink)}
.interest-tags{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.interest-tag input{display:none}
.interest-tag label{display:flex;align-items:center;gap:9px;padding:11px 14px;border:1px solid var(--line-2);border-radius:var(--r-sm);font-size:13.5px;font-weight:600;color:var(--body);cursor:pointer;transition:.15s}
.interest-tag label i{color:var(--muted)}
.interest-tag input:checked+label{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}
.interest-tag input:checked+label i{color:var(--accent)}
.form-fine{font-size:11.5px;color:var(--muted);text-align:center;margin-top:14px}
.form-success{display:none;text-align:center;padding:30px 0}
.form-success.show{display:block}

/* cta band */
.cta{background:var(--bg-ink);color:#c7cedb;text-align:center}
.cta h2{color:#fff;margin-bottom:16px}
.cta .lead{color:#9aa6bd}
.cta-chips{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin:30px 0}
.cta-chip{display:inline-flex;align-items:center;gap:9px;font-size:13.5px;font-weight:600;color:#dfe5ef;background:#121a2c;border:1px solid #1e2942;padding:10px 16px;border-radius:99px}
.cta-chip i{color:#7aa0ff}
.cta-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* reveal */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}