/* ============================================================
   GST Tools — shared site stylesheet
   Used by every page: index, about, contact, upcoming-tools,
   privacy-policy, terms.
   ============================================================ */

:root{
  --navy:#0B1B33;
  --navy-deep:#081327;
  --slate:#48576B;
  --slate-soft:#7A8899;
  --line:#DFE4EA;
  --bg:#F4F6F8;
  --card:#FFFFFF;
  --brand-blue:#1476E0;
  --brand-blue-deep:#0E5BC0;
  --accent:#0FAF7F;
  --accent-soft:#E1F6EF;
  --gold:#0FAF7F;
  --danger:#B3452F;
}
*{box-sizing:border-box;}
html,body{ margin:0; padding:0; }
body{
  background:var(--bg);
  color:var(--navy);
  font-family:'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  min-height:100vh;
  display:flex;
  flex-direction:column;
}
a{ color:var(--accent); }

/* ---------- Header / nav ---------- */
.site-header{
  background:var(--navy);
  border-bottom:3px solid transparent;
  border-image:linear-gradient(90deg, var(--brand-blue), var(--accent) 70%) 1;
  position:sticky;
  top:0;
  z-index:50;
  box-shadow:0 2px 16px rgba(0,0,0,0.18);
}
.nav-wrap{
  max-width:1100px;
  margin:0 auto;
  padding:14px 20px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
}
.brand{
  display:flex;
  align-items:center;
  gap:9px;
  font-family:'Inter', sans-serif;
  font-weight:700;
  font-size:19px;
  color:#FFFFFF;
  text-decoration:none;
  letter-spacing:0.2px;
}
.brand img{
  height:30px;
  width:auto;
  display:block;
}
.brand .wordmark{ color:#FFFFFF; white-space:nowrap; }
.brand .wordmark span{ color:var(--accent); }
.brand .tagline{
  display:none;
}
@media (min-width: 640px){
  .brand .tagline{
    display:inline;
    font-family:'Inter', sans-serif;
    font-weight:500;
    font-size:10.5px;
    letter-spacing:0.6px;
    text-transform:uppercase;
    color:#7A8FA8;
    margin-left:6px;
    padding-left:10px;
    border-left:1px solid rgba(255,255,255,0.15);
  }
}
.site-nav{
  display:flex;
  align-items:center;
  gap:22px;
  flex-wrap:wrap;
}
.site-nav a{
  color:#C7D3DE;
  text-decoration:none;
  font-size:13.5px;
  font-weight:500;
  letter-spacing:0.2px;
}
.site-nav a:hover, .site-nav a.active{ color:#FFFFFF; }

.nav-dropdown{ position:relative; }
.nav-dropdown > .dropdown-trigger{
  color:#C7D3DE;
  text-decoration:none;
  font-size:13.5px;
  font-weight:500;
  letter-spacing:0.2px;
  cursor:pointer;
  background:none;
  border:none;
  font-family:'Inter', sans-serif;
  padding:0;
}
.nav-dropdown:hover > .dropdown-trigger,
.nav-dropdown.active > .dropdown-trigger{ color:#FFFFFF; }
.dropdown-menu{
  display:none;
  position:absolute;
  top:26px;
  left:0;
  background:var(--navy);
  border:1px solid rgba(255,255,255,0.1);
  border-radius:8px;
  padding:6px;
  min-width:190px;
  box-shadow:0 10px 28px rgba(0,0,0,0.35);
  z-index:30;
}
.nav-dropdown:hover .dropdown-menu,
.nav-dropdown:focus-within .dropdown-menu{ display:block; }
.dropdown-menu a{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:8px;
  padding:9px 10px;
  border-radius:5px;
  font-size:13px;
  color:#C7D3DE !important;
  text-decoration:none;
}
.dropdown-menu a:hover{ background:rgba(255,255,255,0.07); color:#FFFFFF !important; }
.dropdown-menu .soon-tag{
  font-size:9.5px;
  letter-spacing:0.5px;
  text-transform:uppercase;
  color:var(--gold);
  border:1px solid var(--gold);
  border-radius:10px;
  padding:1px 6px;
  flex-shrink:0;
}

/* ---------- Community / posts ---------- */
.post-card{
  border:1px solid var(--line);
  border-radius:8px;
  padding:18px 20px;
  margin-bottom:14px;
  background:#FCFDFD;
}
.post-card:last-child{ margin-bottom:0; }
.post-card h3{
  font-family:'Source Serif 4', Georgia, serif;
  font-size:15.5px;
  font-weight:700;
  color:var(--navy);
  margin:0 0 6px;
}
.post-card .post-meta{
  font-size:11.5px;
  color:var(--slate-soft);
  margin-bottom:8px;
}
.post-card p{
  font-size:13px;
  line-height:1.6;
  color:var(--slate);
  margin:0;
  white-space:pre-wrap;
}
.badge-pending{
  display:inline-block;
  font-size:10px;
  font-weight:600;
  letter-spacing:0.5px;
  text-transform:uppercase;
  padding:2px 8px;
  border-radius:10px;
  background:#F3EFE3;
  color:var(--gold);
  margin-left:8px;
}
.auth-card{ max-width:420px; margin:0 auto; }
.auth-switch{
  font-size:13px;
  color:var(--slate);
  text-align:center;
  margin-top:16px;
}

/* ---------- Page shell ---------- */
main{
  flex:1;
  width:100%;
}
.page-wrap{
  max-width:1100px;
  margin:0 auto;
  padding:40px 16px 56px;
  display:flex;
  gap:24px;
  align-items:flex-start;
  justify-content:center;
}
.main-col{
  max-width:640px;
  width:100%;
  flex-shrink:0;
}

/* ---------- Cards / content sections ---------- */
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:10px;
  box-shadow:0 1px 2px rgba(11,37,64,0.04), 0 8px 24px rgba(11,37,64,0.06);
  overflow:hidden;
}
.card-header{
  background:var(--navy);
  padding:30px 36px;
  position:relative;
}
.card-header::after{
  content:"";
  position:absolute;
  left:0; bottom:0;
  width:100%;
  height:3px;
  background:linear-gradient(90deg, var(--brand-blue), var(--accent) 70%);
}
.eyebrow{
  font-family:'IBM Plex Mono', monospace;
  font-size:11px;
  letter-spacing:2px;
  text-transform:uppercase;
  color:#8FA7BE;
  margin-bottom:8px;
}
h1.page-title{
  font-family:'Source Serif 4', Georgia, serif;
  font-weight:700;
  font-size:26px;
  color:#FFFFFF;
  margin:0;
  letter-spacing:0.2px;
}
.card-header p{
  margin:8px 0 0;
  color:#B7C4D2;
  font-size:13.5px;
  line-height:1.5;
}
.card-body{ padding:32px 36px 34px; }

.content-section{
  max-width:640px;
  width:100%;
  margin:24px auto 0;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:10px;
  padding:28px 32px;
}
.content-section:first-child{ margin-top:0; }
.content-section h2{
  font-family:'Source Serif 4', Georgia, serif;
  font-size:19px;
  font-weight:700;
  color:var(--navy);
  margin:0 0 12px;
}
.content-section h2:not(:first-child){ margin-top:26px; }
.content-section p{
  font-size:13.5px;
  line-height:1.65;
  color:var(--slate);
  margin:0 0 12px;
}
.content-section ol, .content-section ul{
  font-size:13.5px;
  line-height:1.65;
  color:var(--slate);
  margin:0 0 12px;
  padding-left:20px;
}
.content-section li{ margin-bottom:6px; }

.faq-item{
  border-top:1px solid var(--line);
  padding:16px 0;
}
.faq-item:first-of-type{ border-top:none; padding-top:4px; }
.faq-item h3{
  font-family:'Inter', sans-serif;
  font-size:14px;
  font-weight:600;
  color:var(--navy);
  margin:0 0 8px;
}
.faq-item p{ margin:0; }

/* ---------- Tool cards (used in tool + upcoming-tools) ---------- */
.tool-card{
  border:1px solid var(--line);
  border-radius:8px;
  padding:20px 22px;
  margin-bottom:14px;
  background:#FCFDFD;
  transition:box-shadow 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}
.tool-card:hover{
  box-shadow:0 6px 20px rgba(11,27,51,0.08);
  border-color:#C9D6E4;
  transform:translateY(-1px);
}
.tool-card:last-child{ margin-bottom:0; }
.tool-card h3{
  font-family:'Source Serif 4', Georgia, serif;
  font-size:16px;
  font-weight:700;
  color:var(--navy);
  margin:0 0 6px;
}
.tool-card p{
  font-size:13px;
  line-height:1.6;
  color:var(--slate);
  margin:0 0 10px;
}
.status-pill{
  display:inline-block;
  font-size:10.5px;
  font-weight:600;
  letter-spacing:0.8px;
  text-transform:uppercase;
  padding:3px 10px;
  border-radius:20px;
  background:var(--accent-soft);
  color:var(--accent);
}
.status-pill.planned{ background:#E7F0FD; color:var(--brand-blue-deep); }
.status-pill.live{ background:var(--accent-soft); color:var(--accent); }

/* ---------- Buttons ---------- */
.btn{
  display:inline-block;
  font-family:'Inter', sans-serif;
  font-size:13px;
  font-weight:600;
  letter-spacing:0.3px;
  background:var(--brand-blue);
  color:#FFFFFF;
  border:none;
  padding:11px 20px;
  border-radius:7px;
  cursor:pointer;
  text-decoration:none;
  transition:background 0.15s ease;
}
.btn:hover{ background:var(--brand-blue-deep); color:#FFFFFF; }
.btn{ transition:background 0.15s ease, transform 0.1s ease; }
.btn:active{ transform:translateY(1px); }

/* ---------- Forms (shared: contact form + tool inputs) ---------- */
.field{ margin-bottom:20px; }
.field label{
  display:block;
  font-size:12px;
  font-weight:600;
  letter-spacing:0.4px;
  color:var(--slate);
  margin-bottom:7px;
}
.field input, .field select, .field textarea{
  width:100%;
  font-family:'Inter', sans-serif;
  font-size:14.5px;
  padding:11px 13px;
  border:1.5px solid var(--line);
  background:#FCFDFD;
  color:var(--navy);
  border-radius:7px;
  transition:border-color 0.15s ease, box-shadow 0.15s ease;
}
.field textarea{ resize:vertical; min-height:110px; font-family:'Inter', sans-serif; }
.field input:focus, .field select:focus, .field textarea:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 3px var(--accent-soft);
}
.field-hint{
  font-size:12px;
  color:var(--slate-soft);
  margin-top:6px;
}
.form-msg{
  font-size:12.5px;
  margin-top:12px;
}
.form-msg.ok{ color:var(--accent); }
.form-msg.err{ color:var(--danger); }

/* ---------- Ad slots ---------- */
.ad-slot{
  width:300px;
  flex-shrink:0;
  min-height:600px;
  border:1px dashed var(--line);
  border-radius:8px;
  background:#FBFCFD;
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  padding:16px;
}
.ad-slot span{
  font-family:'Inter', sans-serif;
  font-size:11px;
  letter-spacing:0.5px;
  text-transform:uppercase;
  color:var(--slate-soft);
}
.ad-slot-bottom{
  max-width:640px;
  width:100%;
  min-height:100px;
  margin:24px auto 0;
  border:1px dashed var(--line);
  border-radius:8px;
  background:#FBFCFD;
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  padding:12px;
}
.ad-slot-bottom span{
  font-family:'Inter', sans-serif;
  font-size:11px;
  letter-spacing:0.5px;
  text-transform:uppercase;
  color:var(--slate-soft);
}
@media (max-width: 1020px){
  .ad-slot{ display:none; }
}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--navy-deep);
  margin-top:auto;
  padding:26px 20px;
}
.footer-inner{
  max-width:1100px;
  margin:0 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
}
.footer-inner p{
  font-size:12px;
  color:#8FA0B3;
  margin:0;
}
.footer-links{
  display:flex;
  gap:18px;
}
.footer-links a{
  font-size:12px;
  color:#B7C4D2;
  text-decoration:none;
}
.footer-links a:hover{ color:#FFFFFF; }