/* Dr. Yaghmaei Clinic — Public showcase landing (medical red) */
:root {
  --red: #B91C1C;
  --red-2: #DC2626;
  --red-dark: #7F1D1D;
  --red-soft: #FEE2E2;
  --red-glow: rgba(185, 28, 28, 0.35);
  --bg: #0c0505;
  --bg-elev: #160a0a;
  --card: rgba(255, 255, 255, 0.03);
  --text: #faf7f5;
  --muted: #a8a29e;
  --line: rgba(255, 255, 255, 0.08);
  --radius: 20px;
  --radius-sm: 12px;
  --font: "Vazirmatn", system-ui, -apple-system, sans-serif;
  --max: 1120px;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.55);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; }

.wrap {
  width: min(var(--max), calc(100% - 40px));
  margin-inline: auto;
}

.bg-mesh {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(185, 28, 28, 0.22), transparent 55%),
    radial-gradient(ellipse 50% 40% at 100% 20%, rgba(127, 29, 29, 0.12), transparent 50%),
    radial-gradient(ellipse 40% 30% at 0% 60%, rgba(250, 247, 245, 0.03), transparent 45%),
    var(--bg);
}
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, black, transparent);
  pointer-events: none;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, background 0.3s, backdrop-filter 0.3s;
}
.nav.scrolled {
  background: rgba(12, 5, 5, 0.82);
  backdrop-filter: blur(20px) saturate(1.4);
  border-bottom-color: var(--line);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 72px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 800;
  font-size: 1rem;
}
.logo img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid rgba(254, 202, 202, 0.35);
  background: var(--red-dark);
  object-fit: contain;
  padding: 4px;
}
.logo span {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--red-soft);
  background: rgba(185, 28, 28, 0.2);
  border: 1px solid rgba(254, 202, 202, 0.25);
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  margin-right: 0.25rem;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-wrap: wrap;
}
.nav-links > a:not(.btn) {
  padding: 0.45rem 0.75rem;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: 10px;
  transition: color 0.2s, background 0.2s;
}
.nav-links > a:not(.btn):hover { color: #fff; background: rgba(255,255,255,0.05); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.55rem 1rem;
  border-radius: 12px;
  font-weight: 700;
  font-size: 0.9rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s, background 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: linear-gradient(135deg, var(--red-2), var(--red-dark));
  color: #fff;
  box-shadow: 0 8px 28px var(--red-glow);
}
.btn-primary:hover { box-shadow: 0 12px 36px rgba(185, 28, 28, 0.45); }
.btn-ghost {
  background: rgba(255,255,255,0.04);
  border-color: var(--line);
  color: var(--text);
}
.btn-ghost:hover { border-color: rgba(254, 202, 202, 0.35); background: rgba(185, 28, 28, 0.12); }
.btn-lg { padding: 0.85rem 1.35rem; font-size: 0.95rem; border-radius: 14px; }

.hero { padding: 3.5rem 0 2rem; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2.5rem;
  align-items: center;
}
.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  background: rgba(185, 28, 28, 0.12);
  border: 1px solid rgba(254, 202, 202, 0.25);
  color: #fecaca;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
}
.pill-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #f87171;
  box-shadow: 0 0 0 4px rgba(248, 113, 113, 0.2);
  animation: pulse 1.8s ease infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}
.hero h1 {
  font-size: clamp(1.85rem, 4.5vw, 2.85rem);
  font-weight: 800;
  line-height: 1.25;
  margin: 0 0 1rem;
  letter-spacing: -0.02em;
}
.hero h1 .grad {
  background: linear-gradient(120deg, #fecaca, #f87171 45%, #B91C1C);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lead {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 36rem;
  margin: 0 0 1.5rem;
}
.cta { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-bottom: 1.75rem; }
.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.25rem;
}
.trust-item {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--muted);
  font-size: 0.88rem;
}
.trust-item strong { color: #fff; font-weight: 700; }
.trust-item .ico { font-size: 1.1rem; }

.device {
  background: linear-gradient(160deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02));
  border: 1px solid var(--line);
  border-radius: 22px;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.device-bar {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.75rem 1rem;
  background: rgba(0,0,0,0.35);
  border-bottom: 1px solid var(--line);
}
.device-bar .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.device-bar .dot.r { background: #ef4444; }
.device-bar .dot.y { background: #eab308; }
.device-bar .dot.g { background: #22c55e; }
.device-bar .title {
  margin-right: auto;
  font-size: 0.75rem;
  color: var(--muted);
  font-weight: 500;
}
.device-screen {
  position: relative;
  min-height: 280px;
  padding: 2rem 1.5rem;
  background:
    radial-gradient(circle at 30% 30%, rgba(185, 28, 28, 0.25), transparent 50%),
    linear-gradient(180deg, #1a0a0a, #0c0505);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.device-screen .mock-icon {
  font-size: 4rem;
  color: #fecaca;
  filter: drop-shadow(0 0 24px rgba(248, 113, 113, 0.45));
  animation: heartbeat 1.4s ease-in-out infinite;
}
@keyframes heartbeat {
  0%, 100% { transform: scale(1); }
  14% { transform: scale(1.1); }
  28% { transform: scale(1); }
  42% { transform: scale(1.06); }
}
.float-card {
  position: absolute;
  background: rgba(22, 10, 10, 0.92);
  border: 1px solid rgba(254, 202, 202, 0.25);
  border-radius: 14px;
  padding: 0.7rem 0.95rem;
  backdrop-filter: blur(12px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.4);
}
.float-card .label { font-size: 0.72rem; color: var(--muted); }
.float-card .val { font-weight: 800; color: #fecaca; font-size: 0.95rem; }
.float-card.a { top: 1.25rem; right: 1.25rem; }
.float-card.b { bottom: 3.5rem; left: 1.25rem; }
.mock-caption {
  margin-top: 1.5rem;
  font-size: 0.8rem;
  color: var(--muted);
  text-align: center;
}

.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-top: 2.5rem;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.stat-cell {
  background: var(--bg-elev);
  padding: 1.25rem 1rem;
  text-align: center;
}
.stat-cell .n {
  font-size: 1.5rem;
  font-weight: 800;
  color: #fecaca;
  margin-bottom: 0.2rem;
}
.stat-cell .l { font-size: 0.8rem; color: var(--muted); }

section.block { padding: 4rem 0; }
.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 2.5rem;
}
.section-head .eyebrow {
  display: inline-block;
  color: #f87171;
  font-weight: 700;
  font-size: 0.8rem;
  margin-bottom: 0.5rem;
}
.section-head h2 {
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 800;
  margin: 0 0 0.6rem;
}
.section-head p { color: var(--muted); margin: 0; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.feature-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 1.35rem;
  transition: border-color 0.2s, transform 0.2s, background 0.2s;
}
.feature-card:hover {
  border-color: rgba(248, 113, 113, 0.35);
  background: rgba(185, 28, 28, 0.08);
  transform: translateY(-2px);
}
.feature-card .ico {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(185, 28, 28, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: 0.85rem;
}
.feature-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 0.4rem;
}
.feature-card p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--muted);
}

.lock-panel {
  background: linear-gradient(145deg, rgba(185, 28, 28, 0.12), rgba(22, 10, 10, 0.6));
  border: 1px solid rgba(254, 202, 202, 0.2);
  border-radius: var(--radius);
  padding: 2rem;
}
.lock-panel h2 { margin-top: 0; }
.lock-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 1.25rem;
}
.lock-box {
  background: rgba(0,0,0,0.25);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 1.15rem;
}
.lock-box h4 {
  margin: 0 0 0.75rem;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.lock-box ul {
  margin: 0;
  padding: 0 1.1rem 0 0;
  color: var(--muted);
  font-size: 0.88rem;
}
.lock-box li { margin-bottom: 0.35rem; }
.lock-box.ok h4 { color: #86efac; }
.lock-box.no h4 { color: #fca5a5; }

.arch {
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 1.25rem 1.5rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.78rem;
  line-height: 1.65;
  color: #fecaca;
  overflow-x: auto;
  white-space: pre;
  direction: ltr;
  text-align: left;
}

.contact-card {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1.5rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2rem;
  align-items: center;
}
.contact-card h2 { margin: 0 0 0.5rem; }
.contact-card p { color: var(--muted); margin: 0 0 1rem; }
.contact-meta {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.95rem;
}
.contact-meta strong { color: #fecaca; }

.footer {
  border-top: 1px solid var(--line);
  padding: 2rem 0 2.5rem;
  margin-top: 2rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}
.footer a { color: #fecaca; }

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.in {
  opacity: 1;
  transform: none;
}

@media (max-width: 900px) {
  .hero-grid,
  .lock-grid,
  .contact-card { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .stats-bar { grid-template-columns: 1fr 1fr; }
  .nav-links > a:not(.btn):not(.btn-ghost):not(.btn-primary) { display: none; }
}
@media (max-width: 560px) {
  .feature-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 2rem; }
  .cta .btn { width: 100%; }
}