/*
 *  PURAPP — Landing Page
 *  Dark-first palette. Brand colors only where it matters.
 */

/* ── Design Tokens ── */
:root {
  --ink:        #071522;
  --ink-light:  #0e1f33;
  --surface:    #102334;
  --surface-hv: #18324A;
  --border:     #1c3852;
  --text:       #FFFFFF;
  --text-2:     #C6D2DC;
  --text-3:     #8295A4;

  --turq:   #27D3E8;
  --turq-h: #1EBAD0;
  --mint:   #63E0A5;
  --lime:   #A8D66F;
  --gold:   #F2C94C;
  --orange: #F58B4A;

  --grad: linear-gradient(90deg, var(--turq) 0%, var(--mint) 35%, var(--gold) 70%, var(--orange) 100%);

  --radius: 10px;
  --radius-lg: 16px;
  --nav-h: 100px;
  --mx: 1140px;
  --ease: .25s ease;
}

/* ── Light theme override ── */


/* ── Reset ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:var(--nav-h)}
body{
  font-family:'Manrope',-apple-system,BlinkMacSystemFont,sans-serif;
  color:var(--text); background:var(--ink);
  line-height:1.6; -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
ul{list-style:none}
img{max-width:100%;display:block}

/* ── Buttons ── */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  font-family:inherit;font-weight:700;border:none;cursor:pointer;
  transition:all var(--ease);border-radius:50px;text-decoration:none;
  letter-spacing:.01em;
}
.btn-primary{
  background:var(--turq); color:var(--ink);
  padding:13px 30px;
}
.btn-primary:hover{
  background:var(--turq-h);
  transform:translateY(-2px);
  box-shadow:0 8px 28px rgba(39,211,232,.3);
}
.btn-outline{
  background:transparent; border:2px solid rgba(255,255,255,.25);
  color:#fff; padding:13px 30px;
}
.btn-outline:hover{border-color:#fff; background:rgba(255,255,255,.06); transform:translateY(-2px)}
.btn-sm{padding:8px 20px;font-size:.85rem}
.btn-lg{padding:15px 36px;font-size:1rem}
.btn-full{width:100%;justify-content:center}

/* ── Navigation (always dark) ── */
#navbar{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(7,21,34,.92);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.06); transition:all var(--ease);
}
#navbar.scrolled{border-bottom-color:rgba(255,255,255,.1)}

.nav-container{
  max-width:var(--mx);margin:0 auto;padding:0 24px;
  min-height:var(--nav-h);display:flex;align-items:center;justify-content:space-between;
}
.nav-logo{display:flex;align-items:center}
.nav-logo img{height:120px;width:auto}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{font-weight:600;font-size:.9rem;color:#C6D2DC;transition:color var(--ease)}
.nav-links a:hover{color:var(--turq)}

/* Logo and theme icon — always dark, always white logo */


.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:4px}
.hamburger span{display:block;width:24px;height:2px;background:var(--text);transition:all var(--ease)}
.hamburger.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.hamburger.active span:nth-child(2){opacity:0}
.hamburger.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}

/* ── Hero (always dark) ── */
#hero{
  position:relative;min-height:100vh;display:flex;
  align-items:center;justify-content:center;
  background:#071522;
  overflow:hidden;
}
.hero-grid{
  position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(39,211,232,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(39,211,232,.03) 1px,transparent 1px);
  background-size:60px 60px;
  mask-image:radial-gradient(ellipse at 50% 40%,black 30%,transparent 70%);
}
.hero-glow{
  position:absolute; border-radius:50%; filter:blur(120px); pointer-events:none;
  opacity:.15;
}
.hero-glow-1{width:500px;height:500px;background:var(--turq);top:-10%;left:50%;transform:translateX(-50%)}
.hero-glow-2{width:400px;height:400px;background:var(--mint);bottom:10%;right:10%}
.hero-glow-3{width:300px;height:300px;background:var(--orange);top:40%;left:5%}

.hero-content{position:relative;z-index:2;text-align:center;max-width:760px;padding:0 24px}
.hero-badge{
  display:inline-block;padding:5px 18px;
  background:rgba(39,211,232,.1);border:1px solid rgba(39,211,232,.2);
  border-radius:50px;font-size:.8rem;font-weight:700;
  color:var(--turq);margin-bottom:24px;letter-spacing:.5px;
}
.hero-title{
  font-size:clamp(2.6rem,6vw,3.8rem);font-weight:800;
  color:#fff;line-height:1.12;margin-bottom:20px;letter-spacing:-1px;
}
.hero-title span{background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-subtitle{
  font-size:1.1rem;color:var(--text-3);max-width:560px;
  margin:0 auto 36px;line-height:1.7;
}
.hero-actions{display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap}
.hero-scroll{
  position:absolute;bottom:28px;left:50%;transform:translateX(-50%);z-index:2;
}
.hero-scroll span{
  display:block;width:22px;height:36px;
  border:2px solid rgba(255,255,255,.2);border-radius:11px;position:relative;
}
.hero-scroll span::after{
  content:'';position:absolute;top:5px;left:50%;transform:translateX(-50%);
  width:4px;height:8px;background:var(--turq);border-radius:2px;
  animation:scr 2s ease-in-out infinite;
}
@keyframes scr{0%,100%{transform:translateX(-50%) translateY(0);opacity:1}50%{transform:translateX(-50%) translateY(7px);opacity:.3}}

/* ── Section Header ── */
.section-header{text-align:center;max-width:620px;margin:0 auto 56px;padding:0 24px}
.section-tag{
  display:inline-block;padding:4px 14px;
  background:rgba(39,211,232,.08);color:var(--turq);
  border-radius:50px;font-size:.76rem;font-weight:700;
  letter-spacing:.5px;text-transform:uppercase;margin-bottom:16px;
}
.section-header h2{
  font-size:clamp(1.7rem,3.5vw,2.4rem);font-weight:800;
  color:var(--text);margin-bottom:10px;letter-spacing:-.5px;
}
.section-header p{font-size:1.05rem;color:var(--text-3);line-height:1.65}

/* ── Features ── */
#features{padding:100px 24px;max-width:var(--mx);margin:0 auto}
.features-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:18px}
.feature-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:30px;transition:all var(--ease);
  cursor:pointer;position:relative;
}
.feature-card:hover{
  background:var(--surface-hv);border-color:rgba(39,211,232,.25);
  transform:translateY(-3px);
}
.feature-card::after{
  content:'▼';position:absolute;top:22px;right:22px;
  font-size:.55rem;color:var(--text-3);transition:transform .3s ease;
  opacity:.5;
}
.feature-card.expanded::after{transform:rotate(180deg);opacity:1;color:var(--turq)}
.feature-card.expanded{
  border-color:rgba(39,211,232,.35);
  box-shadow:0 0 30px rgba(39,211,232,.08);
  grid-column:1 / -1;
  transform:none;
}
.feature-icon{
  width:44px;height:44px;border-radius:var(--radius);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:18px;color:#fff;
  background:var(--grad);
}
.feature-icon svg{width:24px;height:24px}
.feature-card h3{font-size:1.05rem;font-weight:700;color:var(--text);margin-bottom:6px}
.feature-card>p{font-size:.9rem;color:var(--text-3);line-height:1.6;margin-bottom:14px}
.feature-details{border-top:1px solid var(--border);padding-top:12px}
.feature-details li{font-size:.83rem;color:var(--text-2);padding:3px 0 3px 16px;position:relative}
.feature-details li::before{
  content:'';position:absolute;left:0;top:11px;
  width:5px;height:5px;background:var(--turq);border-radius:50%;
}

/* ── Feature diagram (expandable) ── */
.feature-diagram{
  max-height:0;overflow:hidden;opacity:0;
  transition:max-height .45s ease,opacity .35s ease,margin .35s ease;
  margin-top:0;
}
.feature-card.expanded .feature-diagram{
  max-height:700px;opacity:1;margin-top:24px;
}
.flow-diagram{width:100%;height:auto;display:block}
.diagram-caption{
  text-align:center;font-size:.8rem;color:var(--text-3);margin-top:12px;
  font-style:italic;
}
.feature-expand-close{
  position:absolute;top:12px;right:40px;z-index:5;
  background:none;border:none;color:var(--text-3);font-size:1.3rem;
  cursor:pointer;line-height:1;transition:color var(--ease);
  display:none;
}
.feature-expand-close:hover{color:var(--turq)}
.feature-card.expanded .feature-expand-close{display:block}

/* ── Ecosystem ── */
#ecosystem{padding:100px 24px;background:var(--surface)}
.ecosystem-container{max-width:850px;margin:0 auto}
.eco-diagram{width:100%;height:auto}
.eco-line{stroke:var(--border);stroke-width:1.5;transition:all .5s ease}
.eco-line-dash{stroke-dasharray:7 5;stroke:var(--border)}
.eco-group{cursor:pointer}
.eco-rect{fill:var(--ink-light);stroke:var(--border);stroke-width:1.5;transition:all var(--ease)}
.eco-group:hover .eco-rect{fill:rgba(39,211,232,.08);stroke:var(--turq)}
.eco-node-text{font-size:10px;font-weight:700;font-family:'Manrope',sans-serif;fill:var(--text);pointer-events:none}
.eco-hub-rect{fill:var(--ink);stroke:var(--turq);stroke-width:2}
.eco-hub-text{font-size:14px;font-weight:800;font-family:'Manrope',sans-serif;fill:var(--turq);pointer-events:none}
.eco-group-external{cursor:pointer}
.eco-ext-rect{fill:rgba(39,211,232,.05);stroke:rgba(39,211,232,.15);stroke-width:1.5;rx:12;transition:all var(--ease)}
.eco-group-external:hover .eco-ext-rect{fill:rgba(39,211,232,.12);stroke:rgba(39,211,232,.3)}
.eco-ext-text{font-size:10px;font-weight:700;font-family:'Manrope',sans-serif;fill:var(--turq);pointer-events:none}
.eco-ext-sub{font-size:8px;font-family:'Manrope',sans-serif;fill:var(--text-3);pointer-events:none}
.eco-legend{display:flex;justify-content:center;gap:24px;margin-top:16px;font-size:.8rem;color:var(--text-3)}
.eco-legend-dot{display:inline-block;width:10px;height:10px;border-radius:50%;background:var(--ink-light);border:2px solid var(--turq);margin-right:6px;vertical-align:middle}
.eco-legend-dot-ext{background:rgba(39,211,232,.06);border-color:rgba(39,211,232,.2)}

/* ── Integrations ── */
#integrations{padding:100px 24px;max-width:var(--mx);margin:0 auto}
.integrations-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(310px,1fr));gap:16px}
.integration-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:24px;
  transition:all var(--ease);display:flex;flex-direction:column;gap:10px;
}
.integration-card:hover{background:var(--surface-hv);border-color:rgba(39,211,232,.2);transform:translateY(-2px)}
.integration-logo{display:flex;align-items:center;gap:10px}
.integration-logo img{width:32px;height:32px;object-fit:contain}
.integration-name{font-weight:700;font-size:.95rem;color:var(--text)}
.integration-card p{font-size:.88rem;color:var(--text-3);line-height:1.6}

/* ── Pricing ── */
#pricing{padding:100px 24px;background:var(--surface)}
.pricing-grid{max-width:780px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:18px}
.pricing-card{
  background:var(--ink-light);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:36px 30px;
  text-align:center;transition:all var(--ease);
}
.pricing-card:hover{transform:translateY(-3px)}
.pricing-card.featured{border-color:var(--turq)}
.pricing-card h3{font-size:1.1rem;font-weight:700;color:var(--text);margin-bottom:4px}
.pricing-price{font-size:2.6rem;font-weight:800;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin:8px 0 4px;line-height:1}
.pricing-desc{font-size:.88rem;color:var(--text-3);margin-bottom:18px}
.pricing-features{text-align:left;margin:18px 0}
.pricing-features li{font-size:.86rem;color:var(--text-2);padding:5px 0 5px 22px;position:relative;line-height:1.4}
.pricing-features li::before{content:'';position:absolute;left:0;top:12px;width:12px;height:2px;background:var(--turq);border-radius:1px}
.commission-note{margin-top:12px;padding:12px 16px;background:rgba(39,211,232,.06);border-radius:var(--radius);font-size:.82rem;color:var(--text-2);line-height:1.5}
.commission-note strong{color:var(--turq)}

/* ── Stats (always dark) ── */
#stats{position:relative;padding:80px 24px;background:#0e1f33;overflow:hidden}
.stats-bg{position:absolute;inset:0;background:radial-gradient(ellipse at 50% 50%,rgba(39,211,232,.06) 0%,transparent 70%);pointer-events:none}
.stats-grid{position:relative;z-index:2;max-width:var(--mx);margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.stat-item{text-align:center;padding:24px}
.stat-number{font-size:2.8rem;font-weight:800;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;display:block;line-height:1;margin-bottom:8px}
.stat-label{font-size:.95rem;font-weight:700;color:var(--text);display:block;margin-bottom:4px}
.stat-item p{font-size:.82rem;color:var(--text-3)}

/* ── CTA (always dark) ── */
#cta{padding:100px 24px;background:#071522;text-align:center}
.cta-content{max-width:580px;margin:0 auto}
.cta-content h2{font-size:clamp(1.6rem,3.5vw,2.2rem);font-weight:800;color:#fff;margin-bottom:12px;letter-spacing:-.5px}
.cta-content p{font-size:1.05rem;color:var(--text-3);margin-bottom:32px}

/* ── Footer (always dark) ── */
#footer{background:#071522;border-top:1px solid rgba(255,255,255,.06);padding:56px 24px 24px}
.footer-grid{max-width:var(--mx);margin:0 auto;display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand img{height:64px;width:auto;margin-bottom:12px}
.footer-brand p{font-size:.87rem;color:var(--text-3);line-height:1.6}
.footer-social{display:flex;gap:12px;margin-top:16px}
.footer-social a{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.04);display:flex;align-items:center;justify-content:center;transition:all var(--ease)}
.footer-social a:hover{background:var(--turq);color:var(--ink)}
.footer-social svg{width:15px;height:15px}
.footer-links h4{font-size:.8rem;font-weight:700;letter-spacing:.5px;text-transform:uppercase;margin-bottom:14px;color:var(--text-3)}
.footer-links a{display:block;font-size:.88rem;color:var(--text-2);padding:3px 0;transition:color var(--ease)}
.footer-links a:hover{color:var(--turq)}
.footer-bottom{max-width:var(--mx);margin:0 auto;padding-top:22px;border-top:1px solid rgba(255,255,255,.06)}
.footer-bottom p{font-size:.8rem;color:var(--text-3);text-align:center}

/* ── Modal ── */
.modal-overlay{position:fixed;inset:0;z-index:2000;background:rgba(7,21,34,.7);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);display:flex;align-items:center;justify-content:center;padding:24px;opacity:0;visibility:hidden;transition:all .3s ease}
.modal-overlay.active{opacity:1;visibility:visible}
.modal{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);max-width:540px;width:100%;max-height:90vh;overflow-y:auto;padding:36px;position:relative;box-shadow:0 20px 60px rgba(0,0,0,.5);transform:translateY(16px);transition:transform .3s ease}
.modal-overlay.active .modal{transform:translateY(0)}
.modal-close{position:absolute;top:14px;right:14px;background:none;border:none;cursor:pointer;padding:6px;color:var(--text-3);transition:color var(--ease);border-radius:50%}
.modal-close:hover{color:var(--text)}
.modal-header{text-align:center;margin-bottom:26px}
.modal-header h2{font-size:1.45rem;font-weight:800;color:var(--text);margin:8px 0}
.modal-header p{font-size:.9rem;color:var(--text-3)}
.contact-form{display:flex;flex-direction:column;gap:14px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form-group{display:flex;flex-direction:column;gap:5px}
.form-group label{font-size:.78rem;font-weight:700;color:var(--text-3);text-transform:uppercase;letter-spacing:.5px}
.form-group input,.form-group textarea{font-family:inherit;font-size:.9rem;padding:11px 14px;border:1.5px solid var(--border);border-radius:var(--radius);transition:all var(--ease);background:var(--ink-light);color:var(--text)}
.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--turq);box-shadow:0 0 0 3px rgba(39,211,232,.1);background:var(--surface)}
.form-success{text-align:center;color:var(--mint);font-weight:600;font-size:.9rem}
.modal-alt-contact{text-align:center;margin-top:22px;padding-top:18px;border-top:1px solid var(--border)}
.modal-alt-contact p{font-size:.83rem;color:var(--text-3);margin-bottom:10px}
.alt-links{display:flex;justify-content:center;gap:12px}
.alt-link{font-size:.88rem;font-weight:600;color:var(--turq);padding:7px 18px;background:rgba(39,211,232,.07);border-radius:50px;transition:all var(--ease)}
.alt-link:hover{background:rgba(39,211,232,.15)}

/* ── Responsive ── */
@media(max-width:900px){
  .nav-links{position:fixed;top:var(--nav-h);left:0;right:0;background:var(--surface);flex-direction:column;padding:20px;gap:14px;border-bottom:1px solid var(--border);transform:translateY(-100%);opacity:0;pointer-events:none;transition:all var(--ease)}
  .nav-links.active{transform:translateY(0);opacity:1;pointer-events:auto}
  .hamburger{display:flex}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .features-grid{grid-template-columns:1fr}
  .integrations-grid{grid-template-columns:1fr}
}
@media(max-width:640px){
  .form-row{grid-template-columns:1fr}
  .modal{padding:28px}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%;justify-content:center}
  .stats-grid{grid-template-columns:1fr 1fr;gap:10px}
  .footer-grid{grid-template-columns:1fr;gap:22px}
  .pricing-grid{grid-template-columns:1fr}
}
@media(max-width:400px){.stats-grid{grid-template-columns:1fr}}