:root{
  --brand: #00B894;
  --text: #2D3436;
  --muted: #6B7280;
  --line: #E5E7EB;
  --bg-soft: #F9FAFB;
  --grid: #EAECEF;

  --radius: 16px;
  --radius-sm: 12px;

  --shadow: 0 10px 30px rgba(17, 24, 39, 0.08);
  --shadow-soft: 0 8px 20px rgba(17, 24, 39, 0.06);

  --container: 1120px;
}

*{ box-sizing: border-box; }
html,body{ margin:0; padding:0; }
body{
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  background: #fff;
  line-height: 1.5;
}
a{ color: inherit; text-decoration: none; }
.container{
  width: min(100% - 40px, var(--container));
  margin: 0 auto;
}


/* Header */
header{
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
  background: rgba(255,255,255,0.75);
  border-bottom: 1px solid rgba(229,231,235,0.6);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 0;
}
.brand{
  display:flex;
  align-items:center;
  gap: 12px;
  min-width: 240px;
}
.logo-img{
  width: 38px;
  height: 38px;
  object-fit: contain;
}
.brand-text{
  display:flex;
  flex-direction: column;
  line-height: 1.05;
}
.brand-text .name{
  font-family: Montserrat, Inter, sans-serif;
  font-weight: 700;
  font-size: 14.5px;
  letter-spacing: 0.2px;
}
.brand-text .tag{
  font-size: 12.5px;
  color: var(--muted);
  margin-top: 3px;
}

nav{
  display:flex;
  align-items:center;
  gap: 18px;
  justify-content: center;
  flex: 1;
}
nav a{
  font-size: 14px;
  color: rgba(45,52,54,0.85);
  padding: 8px 10px;
  border-radius: 10px;
}
nav a:hover{
  background: rgba(0,184,148,0.08);
  color: var(--text);
}

.header-actions{
  display:flex;
  align-items:center;
  gap: 10px;
  min-width: 240px;
  justify-content: flex-end;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap: 10px;
  border-radius: 12px;
  padding: 10px 14px;
  font-weight: 600;
  font-size: 14px;
  border: 1px solid transparent;
  cursor: pointer;
  user-select:none;
  transition: transform .05s ease, box-shadow .2s ease, background .2s ease;
  white-space: nowrap;
}
.btn:active{ transform: translateY(1px); }
.btn-outline{
  background: transparent;
  border-color: rgba(45,52,54,0.18);
  color: var(--text);
}
.btn-outline:hover{
  border-color: rgba(0,184,148,0.45);
  background: rgba(0,184,148,0.06);
}

/* Hero */
.hero{
  padding: 56px 0 34px;
}
.hero-grid{
  display:grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 26px;
  align-items: center;
}
h1{
  font-family: Montserrat, Inter, sans-serif;
  font-size: clamp(28px, 3.2vw, 44px);
  line-height: 1.12;
  margin: 0 0 14px;
  letter-spacing: -0.2px;
}
.lead{
  font-size: 16.5px;
  color: rgba(45,52,54,0.82);
  margin: 0 0 22px;
  max-width: 58ch;
}
.cta-row{
  display:flex;
  align-items:center;
  gap: 12px;
  flex-wrap: wrap;
}
.btn-primary{
  background: var(--brand);
  color: #fff;
  box-shadow: 0 10px 24px rgba(0,184,148,0.22);
}
.btn-primary:hover{
  background: #009E80;
  box-shadow: 0 14px 28px rgba(0,184,148,0.26);
}
.btn-primary:disabled{
  opacity: 0.7;
  cursor: not-allowed;
  pointer-events: none;
}
.btn-spinner{
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255,255,255,0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  vertical-align: middle;
  margin-right: 4px;
}
@keyframes spin{
  to { transform: rotate(360deg); }
}
.hero-note{
  font-size: 13.5px;
  color: var(--muted);
  margin-top: 12px;
}

.mock{
  border: 1px solid rgba(229,231,235,0.9);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
  overflow:hidden;
}
.mock-top{
  display:flex;
  gap: 6px;
  padding: 12px 14px;
  border-bottom: 1px solid rgba(229,231,235,0.9);
  background: linear-gradient(#fff, #fff);
}
.dot{ width: 10px; height: 10px; border-radius: 999px; background: #E5E7EB; }
.dot:nth-child(1){ background:#FF5F57; opacity:.75;}
.dot:nth-child(2){ background:#FEBC2E; opacity:.75;}
.dot:nth-child(3){ background:#28C840; opacity:.75;}
.mock-body{
  padding: 16px;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(0,184,148,0.10), transparent 55%),
    linear-gradient(to right, rgba(234,236,239,0.55) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(234,236,239,0.55) 1px, transparent 1px);
  background-size: auto, 44px 44px, 44px 44px;
}
.cards{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.card{
  background: rgba(255,255,255,0.92);
  border: 1px solid rgba(229,231,235,0.95);
  border-radius: 14px;
  padding: 12px;
  box-shadow: var(--shadow-soft);
}
.card h3{
  font-size: 13.5px;
  margin: 0 0 6px;
  font-weight: 700;
}
.row{
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 10px;
  font-size: 12.5px;
  color: rgba(45,52,54,0.80);
  padding: 6px 0;
  border-bottom: 1px dashed rgba(229,231,235,0.9);
}
.row:last-child{ border-bottom: 0; }
.pill{
  font-size: 12px;
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(0,184,148,0.12);
  color: #006F5C;
  font-weight: 600;
  white-space: nowrap;
}

/* Features */
section{
  padding: 34px 0;
}
.section-title{
  font-family: Montserrat, Inter, sans-serif;
  font-size: 24px;
  margin: 0 0 16px;
  letter-spacing: -0.1px;
}
.features{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.feature{
  border: 1px solid rgba(229,231,235,0.9);
  border-radius: var(--radius);
  padding: 16px;
  background: #fff;
  box-shadow: var(--shadow-soft);
}
.icon{
  width: 40px;
  height: 40px;
  border-radius: 14px;
  border: 1px solid rgba(45,52,54,0.10);
  background:
    radial-gradient(circle at 68% 60%, var(--brand) 0 4px, transparent 5px),
    linear-gradient(to right, rgba(234,236,239,0.55) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(234,236,239,0.55) 1px, transparent 1px);
  background-size: auto, 10px 10px, 10px 10px;
  margin-bottom: 10px;
}
.feature h3{
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 800;
}
.feature p{
  margin: 0;
  color: rgba(45,52,54,0.78);
  font-size: 14px;
}

/* Contact form */
.contact{
  background: var(--bg-soft);
  border-top: 1px solid rgba(229,231,235,0.75);
  border-bottom: 1px solid rgba(229,231,235,0.75);
}
.contact-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  align-items: start;
}
.contact p{
  margin: 0;
  color: rgba(45,52,54,0.80);
}
form{
  background: #fff;
  border: 1px solid rgba(229,231,235,0.9);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow-soft);
}
label{
  display:block;
  font-size: 13px;
  color: rgba(45,52,54,0.85);
  font-weight: 600;
  margin: 10px 0 6px;
}
input, textarea{
  width: 100%;
  border: 1px solid rgba(229,231,235,1);
  border-radius: 12px;
  padding: 11px 12px;
  font-family: inherit;
  font-size: 14px;
  outline: none;
  background: #fff;
}
input:focus, textarea:focus{
  border-color: rgba(0,184,148,0.55);
  box-shadow: 0 0 0 4px rgba(0,184,148,0.10);
}
textarea{ min-height: 96px; resize: vertical; }
.form-row{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.form-actions{
  margin-top: 12px;
  display:flex;
  align-items:center;
  gap: 12px;
  flex-wrap: wrap;
}
.fine{
  font-size: 12.5px;
  color: var(--muted);
}

/* Flash messages */
.flash-success{
  background: rgba(0,184,148,0.10);
  border: 1px solid rgba(0,184,148,0.35);
  color: #006F5C;
  border-radius: 12px;
  padding: 12px 16px;
  margin-top: 12px;
  font-size: 14px;
}
.flash-error{
  background: rgba(239,68,68,0.08);
  border: 1px solid rgba(239,68,68,0.30);
  color: #B91C1C;
  border-radius: 12px;
  padding: 12px 16px;
  margin-top: 12px;
  font-size: 14px;
}

/* Footer */
footer{
  padding: 26px 0;
  color: rgba(45,52,54,0.75);
  font-size: 13.5px;
}
.footer-row{
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}

/* Responsive */
@media (max-width: 900px){
  .hero-grid{ grid-template-columns: 1fr; }
  nav{ display:none; }
  .header-actions{ min-width: auto; }
  .brand{ min-width: auto; }
  .features{ grid-template-columns: 1fr; }
  .contact-grid{ grid-template-columns: 1fr; }
  .cards{ grid-template-columns: 1fr; }
  .form-row{ grid-template-columns: 1fr; }
}