/* ================================================================
   UrbanFlow — style.css v5
   Montserrat · Cocoa & Black · Varied section layouts
   ================================================================ */
@import url("https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600;700;800;900&display=swap");

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg: #000; --bg2: #060606;
  --card: #111; --border: #2a2a2a; --bh: #3a3a3a;
  --t1: #f0ece6; --t2: #a89f97; --t3: #555;
  --cocoa: #8b5e3c; --cocoa-l: #c89a6c; --cocoa-xl: #d4b08a;
  --font: 'Montserrat', sans-serif;
  --ease: cubic-bezier(.16, 1, .3, 1);
  --radius: 10px;
}

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; scrollbar-width: none; }
html::-webkit-scrollbar { display: none; }
body { font-family: var(--font); background: var(--bg); color: var(--t1); overflow-x: hidden; line-height: 1.7; }
a { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; }
ul { list-style: none; }
em {
  font-style: normal;
  background: linear-gradient(135deg, var(--cocoa-l), var(--cocoa-xl));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.sec { padding: 110px 0; }
.sec-dark { background: var(--bg2); }
.centered { text-align: center; margin-left: auto; margin-right: auto; }
.narrow { max-width: 560px; }
.body-text { font-size: .92rem; color: var(--t2); line-height: 1.85; margin-bottom: 16px; }

/* ========== NAV ========== */
#navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 18px 0; transition: all .4s var(--ease);
}
#navbar.scrolled {
  background: rgba(0,0,0,.88);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,.05);
  padding: 12px 0;
}
.nav-wrap {
  max-width: 1080px; margin: 0 auto; padding: 0 28px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-brand { display: flex; align-items: center; }
.nav-logo { height: 52px; width: auto; }
.nav-links-desktop { display: flex; gap: 32px; }
.nav-links-desktop a {
  font-size: .80rem; font-weight: 500; color: var(--t2);
  transition: color .3s; position: relative;
}
.nav-links-desktop a::after {
  content: ''; position: absolute; bottom: -4px; left: 0;
  width: 0; height: 1px; background: var(--cocoa-l); transition: width .35s var(--ease);
}
.nav-links-desktop a:hover { color: var(--t1); }
.nav-links-desktop a:hover::after { width: 100%; }
.nav-cta {
  font-family: var(--font); font-size: .76rem; font-weight: 700;
  padding: 10px 20px; border-radius: 6px; border: none; cursor: pointer;
  background: var(--cocoa); color: #fff; letter-spacing: .02em;
  transition: all .3s var(--ease);
}
.nav-cta:hover { background: var(--cocoa-l); transform: translateY(-1px); }
.hamburger { display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 6px; z-index: 200; }
.hamburger span {
  display: block; width: 22px; height: 2px; background: var(--t1);
  border-radius: 2px; transition: all .3s var(--ease); transform-origin: center;
}
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu: top-level, outside nav */
.mobile-menu {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0; z-index: 150;
  background: rgba(0,0,0,.97);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 30px;
  opacity: 0; visibility: hidden; pointer-events: none;
  transition: opacity .35s var(--ease), visibility .35s;
}
.mobile-menu.open { opacity: 1; visibility: visible; pointer-events: all; }
.mobile-menu a { font-size: 1.5rem; font-weight: 700; color: var(--t1); transition: color .3s; }
.mobile-menu a:hover { color: var(--cocoa-xl); }

/* ========== HERO ========== */
#hero {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  position: relative; text-align: center;
  padding: 120px 32px 100px; overflow-x: hidden;
}
.hero-inner { position: relative; z-index: 2; max-width: 860px; width: 100%; }
.hero-big {
  font-size: clamp(3.2rem, 10.5vw, 9rem);
  font-weight: 900; line-height: 1; letter-spacing: -.04em;
  margin-bottom: 20px; padding-bottom: .08em; white-space: nowrap;
}
.cw { display: inline-block; overflow: hidden; vertical-align: bottom; }
.ch {
  display: inline-block;
  background: linear-gradient(180deg, #fff 0%, #666 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  padding-bottom: .06em;
}
.hero-tag {
  font-size: clamp(.8rem, 1.2vw, .92rem); font-weight: 600;
  color: var(--cocoa-l); letter-spacing: .22em; text-transform: uppercase; margin-bottom: 22px;
}
.hero-sub {
  font-size: clamp(.88rem, 1.2vw, .98rem); color: var(--t2);
  line-height: 1.9; max-width: 580px; margin: 0 auto 32px;
}
.hero-ctas { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-bottom: 28px; }

/* Status banner */
.status-banner {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: .72rem; color: var(--t2); background: rgba(255,255,255,.04);
  border: 1px solid var(--border); border-radius: 50px;
  padding: 7px 16px; margin-top: 8px;
}
.status-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--cocoa-l); flex-shrink: 0;
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.5;transform:scale(.7)} }

/* ========== BUTTONS ========== */
.btn-fill {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font); font-size: .84rem; font-weight: 600;
  padding: 13px 28px; border-radius: 6px; border: none; cursor: pointer;
  background: var(--cocoa); color: #fff; transition: all .35s var(--ease);
}
.btn-fill:hover { background: var(--cocoa-l); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(139,94,60,.22); }
.btn-line {
  display: inline-flex; align-items: center;
  font-family: var(--font); font-size: .84rem; font-weight: 600;
  padding: 13px 28px; border-radius: 6px; cursor: pointer;
  border: 1px solid var(--bh); background: transparent; color: var(--t1);
  transition: all .3s var(--ease);
}
.btn-line:hover { border-color: var(--cocoa-l); color: var(--cocoa-xl); }
.btn-full { width: 100%; justify-content: center; }

/* ========== SECTION LABEL ========== */
.sec-label {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: .78rem; font-weight: 700; letter-spacing: .22em;
  text-transform: uppercase; color: var(--cocoa-l); margin-bottom: 20px;
}
.lbl-line { width: 28px; height: 2px; background: var(--cocoa-l); flex-shrink: 0; }
h2 { font-size: clamp(1.8rem, 3.2vw, 2.5rem); font-weight: 700; line-height: 1.22; margin-bottom: 20px; max-width: 640px; }

/* ========== THE PROBLEM ========== */
.problem-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; margin-top: 16px; }
.problem-text p { font-size: .91rem; color: var(--t2); line-height: 1.85; margin-bottom: 16px; }
.problem-scenarios { display: flex; flex-direction: column; gap: 14px; }
.scenario {
  display: flex; gap: 18px; align-items: flex-start;
  padding: 22px; border-radius: var(--radius);
  border: 1px solid var(--border); background: #0a0a0a;
  transition: border-color .35s var(--ease), transform .35s var(--ease);
  opacity: 1 !important;
}
.scenario:hover { border-color: var(--cocoa); transform: translateX(4px); }
.scenario-num {
  font-size: 1.6rem; font-weight: 900; line-height: 1;
  color: var(--cocoa); min-width: 36px; flex-shrink: 0; padding-top: 2px;
}
.scenario p { font-size: .83rem; color: var(--t2); line-height: 1.7; margin: 0; }

/* ========== ABOUT ========== */
.about-twocol { display: grid; grid-template-columns: 1.1fr .9fr; gap: 64px; align-items: start; margin-top: 8px; }
.about-text p { font-size: .91rem; color: var(--t2); line-height: 1.85; margin-bottom: 14px; }
.about-text strong { color: var(--t1); }
.about-stats { display: flex; flex-direction: column; gap: 0; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.stat-block { padding: 24px 28px; border-bottom: 1px solid var(--border); }
.stat-block:last-child { border-bottom: none; }
.stat-num { font-size: 1.6rem; font-weight: 800; color: var(--cocoa-xl); margin-bottom: 5px; line-height: 1; }
.stat-desc { font-size: .8rem; color: var(--t2); line-height: 1.6; }

/* ========== PRODUCT ========== */
/* Status callout */
.status-callout {
  display: flex; gap: 14px; align-items: flex-start;
  padding: 18px 22px; border-radius: var(--radius);
  border: 1px solid rgba(200,154,108,.25); background: rgba(139,94,60,.06);
  margin: 28px 0; font-size: .84rem; color: var(--t2); line-height: 1.65;
}
.status-callout strong { color: var(--cocoa-xl); }
.sc-icon { width: 20px; height: 20px; color: var(--cocoa-l); flex-shrink: 0; margin-top: 2px; }
.sc-icon svg { width: 100%; height: 100%; }

/* Demo window */
.demo {
  margin: 28px 0 48px; border-radius: 12px; overflow: hidden;
  border: 1px solid var(--border); background: var(--card);
  box-shadow: 0 24px 64px -16px rgba(0,0,0,.6); transition: transform .5s var(--ease);
}
.demo:hover { transform: translateY(-3px); }
.demo-bar { display: flex; align-items: center; padding: 10px 14px; border-bottom: 1px solid var(--border); gap: 6px; }
.dots { display: flex; gap: 5px; }
.d { width: 9px; height: 9px; border-radius: 50%; }
.d.r { background: #ff5f57; } .d.y { background: #febc2e; } .d.g { background: #28c840; }
.demo-title { flex: 1; text-align: center; font-size: .65rem; color: var(--t3); letter-spacing: .04em; }
.live { font-size: .56rem; font-weight: 700; color: var(--cocoa-l); animation: lp 2s ease-in-out infinite; }
@keyframes lp { 0%,100%{opacity:1} 50%{opacity:.3} }
.demo img { width: 100%; display: block; min-height: 180px; background: #0a0a0a; }

/* Alternating feature list */
.feat-alt { display: flex; flex-direction: column; gap: 0; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.feat-item {
  display: flex; gap: 28px; align-items: flex-start;
  padding: 30px 32px; border-bottom: 1px solid var(--border);
  transition: background .3s; opacity: 1 !important;
}
.feat-item:last-child { border-bottom: none; }
.feat-item--alt { background: rgba(139,94,60,.03); }
.feat-item:hover { background: rgba(255,255,255,.025); }
.feat-num {
  font-size: 2rem; font-weight: 900; color: var(--border);
  min-width: 44px; flex-shrink: 0; line-height: 1;
  transition: color .3s;
}
.feat-item:hover .feat-num { color: var(--cocoa); }
.feat-body h3 { font-size: .96rem; font-weight: 700; margin-bottom: 8px; }
.feat-body p { font-size: .84rem; color: var(--t2); line-height: 1.75; }
.feat-classes { display: block; margin-top: 8px; font-size: .77rem; color: var(--t3); font-style: italic; }

.product-cta { text-align: center; margin-top: 48px; }
.product-cta-note { font-size: .76rem; color: var(--t3); margin-top: 10px; }

/* ========== RESEARCH ========== */
.research-row { display: grid; grid-template-columns: 1fr 1fr; gap: 52px; align-items: start; margin-top: 8px; }
.research-text p { font-size: .91rem; color: var(--t2); line-height: 1.85; margin-bottom: 14px; }
.research-text strong { color: var(--t1); }
.research-text .btn-fill { margin-top: 8px; }
.research-cards { display: flex; flex-direction: column; gap: 12px; }
.rcard {
  padding: 26px; border-radius: var(--radius);
  border: 1px solid var(--border); background: var(--card);
  transition: all .35s var(--ease); opacity: 1 !important;
}
.rcard:hover { border-color: var(--cocoa); transform: translateY(-2px); }
.rcard-icon { width: 24px; height: 24px; color: var(--cocoa-l); margin-bottom: 12px; }
.rcard-icon svg { width: 100%; height: 100%; }
.rcard h3 { font-size: .92rem; font-weight: 700; margin-bottom: 6px; }
.rcard p { font-size: .82rem; color: var(--t2); line-height: 1.73; }

/* ========== ROADMAP ========== */
.roadmap-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 36px; }
.rm-item {
  padding: 28px 24px; border-radius: var(--radius);
  border: 1px solid var(--border); background: var(--card);
  transition: all .35s var(--ease); opacity: 1 !important;
}
.rm-item:hover { border-color: var(--cocoa); transform: translateY(-3px); }
.rm-tag {
  font-size: .64rem; font-weight: 700; text-transform: uppercase; letter-spacing: .14em;
  color: var(--cocoa-l); margin-bottom: 12px;
}
.rm-item h4 { font-size: .9rem; font-weight: 700; margin-bottom: 10px; color: var(--t1); }
.rm-item p { font-size: .8rem; color: var(--t2); line-height: 1.7; }

/* ========== CONTACT ========== */
.contact-split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; margin-top: 8px; }
.contact-left p { font-size: .91rem; color: var(--t2); line-height: 1.85; margin-bottom: 16px; }
.contact-left h2 { max-width: 100%; }
.contact-email-row {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: .96rem; font-weight: 600; color: var(--cocoa-xl); margin-bottom: 18px;
}
.contact-email-row svg { width: 18px; height: 18px; flex-shrink: 0; }
.contact-email-row a { color: var(--cocoa-xl); transition: opacity .3s; }
.contact-email-row a:hover { opacity: .7; }

.feedback-note {
  display: flex; align-items: center; gap: 8px;
  font-size: .82rem; color: var(--t2); margin-top: 4px;
}
.feedback-note svg { width: 16px; height: 16px; color: var(--t3); flex-shrink: 0; }
.feedback-note a { color: var(--cocoa-l); text-decoration: none; transition: color .3s; }
.feedback-note a:hover { color: var(--cocoa-xl); }

.contact-form { display: flex; flex-direction: column; gap: 10px; }
.contact-form input, .contact-form textarea {
  font-family: var(--font); font-size: .87rem; padding: 13px 14px;
  border-radius: 8px; border: 1px solid var(--border); background: #0a0a0a;
  color: var(--t1); outline: none; transition: border .3s; resize: vertical;
}
.contact-form input::placeholder, .contact-form textarea::placeholder { color: var(--t3); }
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--cocoa-l); }

/* ========== MODAL ========== */
.modal-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0,0,0,.82); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden; pointer-events: none;
  transition: opacity .35s, visibility .35s; padding: 20px;
}
.modal-overlay.open { opacity: 1; visibility: visible; pointer-events: all; }
.modal {
  background: #0d0d0d; border: 1px solid var(--border); border-radius: 14px;
  max-width: 540px; width: 100%; max-height: 88vh; overflow-y: auto;
  padding: 36px; position: relative;
  transform: translateY(20px); transition: transform .35s var(--ease);
}
.modal-overlay.open .modal { transform: translateY(0); }
.modal-close {
  position: absolute; top: 16px; right: 18px;
  background: none; border: none; color: var(--t3); font-size: 1.1rem;
  cursor: pointer; transition: color .25s; padding: 4px; line-height: 1;
}
.modal-close:hover { color: var(--t1); }
.modal h2 { font-size: 1.4rem; font-weight: 700; margin-bottom: 8px; max-width: 100%; }
.modal-intro { font-size: .86rem; color: var(--t2); margin-bottom: 22px; line-height: 1.6; }

.modal-agreement { margin-bottom: 22px; }
.modal-agreement h4 {
  font-size: .73rem; font-weight: 700; color: var(--cocoa-l);
  text-transform: uppercase; letter-spacing: .12em; margin-bottom: 12px;
}
.agreement-text {
  background: #080808; border: 1px solid var(--border); border-radius: 8px;
  padding: 18px; margin-bottom: 14px;
}
.agreement-text p { font-size: .8rem; color: var(--t2); line-height: 1.75; margin-bottom: 10px; }
.agreement-text strong { color: var(--t1); }
.agreement-text ul { padding-left: 16px; list-style: disc; margin-bottom: 10px; }
.agreement-text li { font-size: .79rem; color: var(--t2); line-height: 1.7; margin-bottom: 6px; }
.agree-check {
  display: flex; align-items: flex-start; gap: 10px; cursor: pointer;
  font-size: .82rem; color: var(--t2); line-height: 1.55;
}
.agree-check input { margin-top: 3px; accent-color: var(--cocoa-l); width: 15px; height: 15px; flex-shrink: 0; cursor: pointer; }

.modal-form { display: flex; flex-direction: column; gap: 10px; }
.modal-form h4 {
  font-size: .73rem; font-weight: 700; color: var(--cocoa-l);
  text-transform: uppercase; letter-spacing: .12em; margin-top: 4px; margin-bottom: 2px;
}
.modal-form input, .modal-form select, .modal-form textarea {
  font-family: var(--font); font-size: .87rem; padding: 12px 14px;
  border-radius: 8px; border: 1px solid var(--border); background: #080808;
  color: var(--t1); outline: none; transition: border .3s;
}
.modal-form select { cursor: pointer; }
.modal-form input::placeholder, .modal-form textarea::placeholder { color: var(--t3); }
.modal-form input:focus, .modal-form select:focus, .modal-form textarea:focus { border-color: var(--cocoa-l); }
.modal-form textarea { resize: vertical; }
.modal-form .btn-fill:disabled { opacity: .28; cursor: not-allowed; }
.modal-note { font-size: .73rem; color: var(--t3); text-align: center; margin-top: 6px; line-height: 1.6; }

/* Legal modals */
.legal-text p { margin-bottom: 14px; }
.legal-text strong { color: var(--t1); font-weight: 600; }
.legal-sig { font-size: .82rem; color: var(--t2); font-weight: 600; margin-top: 18px; }

/* ========== FOOTER ========== */
footer { border-top: 1px solid var(--border); }
.footer-top { text-align: center; padding: 44px 24px 28px; }
.footer-top p { font-size: .82rem; color: var(--t2); margin-bottom: 12px; }
.footer-email { display: inline-flex; align-items: center; gap: 8px; font-size: .95rem; font-weight: 600; color: var(--t1); }
.footer-email svg { width: 18px; height: 18px; }
.footer-email a { color: var(--t1); transition: color .3s; }
.footer-email a:hover { color: var(--cocoa-xl); }
.footer-feedback { margin-top: 12px; font-size: .78rem; color: var(--t3); }
.footer-feedback a { color: var(--cocoa-l); transition: color .3s; }
.footer-feedback a:hover { color: var(--cocoa-xl); }
.footer-bottom { border-top: 1px solid var(--border); padding: 18px 0; }
.fb-row { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px; }
.fb-links { display: flex; gap: 20px; }
.fb-btn {
  font-family: var(--font); font-size: .72rem; color: var(--t2); font-weight: 500;
  background: none; border: none; cursor: pointer; padding: 0; transition: color .3s;
}
.fb-btn:hover { color: var(--t1); }
.fb-copy { font-size: .7rem; color: var(--t3); }
.fb-note { font-size: .62rem; color: var(--t3); font-style: italic; }

/* ========== ACARD (kept for potential re-use) ========== */
.acard, .feat, .rcard, .rm-item, .scenario { opacity: 1 !important; }

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
  .problem-layout { grid-template-columns: 1fr; gap: 40px; }
  .about-twocol { grid-template-columns: 1fr; gap: 36px; }
  .about-stats { flex-direction: row; flex-wrap: wrap; border: none; gap: 12px; }
  .stat-block { flex: 1; min-width: 180px; border: 1px solid var(--border); border-radius: var(--radius); }
  .research-row { grid-template-columns: 1fr; gap: 36px; }
  .roadmap-row { grid-template-columns: repeat(2, 1fr); }
  .contact-split { grid-template-columns: 1fr; gap: 36px; }
}

@media (max-width: 768px) {
  .sec { padding: 80px 0; }
  #navbar { padding: 14px 0; }
  #navbar.scrolled { padding: 10px 0; }
  .nav-logo { height: 44px; }
  .nav-links-desktop { display: none; }
  .hamburger { display: flex; }
  .nav-cta { display: none; }

  .hero-big { font-size: clamp(2.8rem, 13vw, 5rem); white-space: normal; letter-spacing: -.03em; }
  .hero-ctas { flex-direction: column; align-items: stretch; }

  .problem-layout { grid-template-columns: 1fr; }
  .feat-item { padding: 22px 18px; gap: 16px; }
  .roadmap-row { grid-template-columns: 1fr 1fr; }
  .contact-split { grid-template-columns: 1fr; }
  .fb-row { flex-direction: column; text-align: center; gap: 8px; }
  .fb-links { justify-content: center; }
}

@media (max-width: 540px) {
  .roadmap-row { grid-template-columns: 1fr; }
  .feat-alt { border-radius: 8px; }
  .modal { padding: 22px; }
  .status-banner { font-size: .66rem; text-align: left; }
}