/* =========================================================
   Variables
========================================================= */
:root {
  --bg: #06162e;
  --bg-soft: #0c2346;
  --surface: #ffffff;
  --surface-alt: #f2f6fb;
  --text: #0d1b2a;
  --text-light: #5a6b83;
  --primary: #1a66ff;
  --primary-dark: #0f4ec9;
  --accent: #14b8a6;
  --border: #dbe5f1;
  --success: #0e9f6e;
  --danger: #c03f3f;
  --warning: #a07a17;
  --radius: 14px;
  --shadow: 0 14px 40px rgba(6, 22, 46, 0.12);
}

/* =========================================================
   Base
========================================================= */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: Inter, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  line-height: 1.55;
  background: var(--surface-alt);
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; }
.container { width: min(1120px, calc(100% - 2rem)); margin: 0 auto; }
.section { padding: 4.25rem 0; }
.section-title { font-size: clamp(1.6rem, 2vw, 2.2rem); margin: 0 0 .7rem; }
.section-subtitle { color: var(--text-light); margin: 0 0 2rem; max-width: 72ch; }
.kicker { color: var(--accent); text-transform: uppercase; letter-spacing: .08em; font-weight: 700; font-size: .82rem; }
.muted { color: var(--text-light); }
.small { font-size: .9rem; }
.inline-links { display: flex; flex-wrap: wrap; gap: .5rem 1rem; }

/* =========================================================
   Header / navigation
========================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(6,22,46,.96);
  border-bottom: 1px solid rgba(255,255,255,.08);
  backdrop-filter: blur(8px);
}
.nav-wrap { display:flex; align-items:center; justify-content:space-between; min-height: 74px; gap: 1rem; }
.brand { display:flex; align-items:center; gap: .65rem; color:#fff; font-weight:700; }
.brand img { width: 42px; height: 42px; }
.nav-links { list-style:none; display:flex; gap:1rem; margin:0; padding:0; }
.nav-links a { color: #dce7ff; padding:.5rem .7rem; border-radius: 8px; }
.nav-links a.active,
.nav-links a:hover { background: rgba(255,255,255,.12); text-decoration:none; }
.menu-toggle {
  display:none;
  background:none;
  border:1px solid rgba(255,255,255,.3);
  color:#fff;
  padding:.45rem .6rem;
  border-radius: 8px;
}

/* =========================================================
   Hero / marketing blocks
========================================================= */
.hero {
  background: radial-gradient(1300px 580px at 10% -10%, #1d4ed8 2%, #0a1e3b 45%, var(--bg) 100%);
  color:#fff;
  padding: 5rem 0 4rem;
}
.hero-grid { display:grid; grid-template-columns: 1.1fr .9fr; gap:2rem; align-items:center; }
.hero h1 { font-size: clamp(2rem, 4vw, 3rem); line-height: 1.14; margin:.5rem 0 1rem; }
.hero p { color:#ccd8ef; max-width: 65ch; }

/* =========================================================
   Buttons
========================================================= */
.actions { display:flex; flex-wrap:wrap; gap:.8rem; margin-top:1.4rem; }
.btn {
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius: 11px;
  padding:.72rem 1.05rem;
  font-weight:600;
  border:1px solid transparent;
  background: #eaf2ff;
  color: #123268;
  cursor: pointer;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background:var(--primary-dark); }
.btn-outline { border-color: #8ca4d8; color:#fff; background: transparent; }
.btn-outline:hover { background: rgba(255,255,255,.12); }
.btn-danger { background: #fff0f0; color: var(--danger); border-color: #ffd6d6; }

/* =========================================================
   Cards / sections
========================================================= */
.card-grid { display:grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.card {
  background: var(--surface);
  border:1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem;
  box-shadow: var(--shadow);
}
.card h3 { margin-top:0; margin-bottom:.5rem; font-size:1.03rem; }
.card p { margin: 0; color: var(--text-light); }
.badge-row { display:grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top:-2rem; }
.badge { background: #fff; border:1px solid var(--border); border-radius: var(--radius); padding:1rem; font-weight: 600; }
.platforms a { display:block; font-weight:700; margin-bottom:.4rem; }
.cta-banner {
  background: linear-gradient(125deg, #0d2f69, #133f84);
  color:#fff;
  border-radius: 18px;
  padding: 2rem;
  display:flex;
  justify-content:space-between;
  gap:1rem;
  align-items:center;
}
.cta-banner p { color:#dbe6ff; margin:.4rem 0 0; }
.step-grid { display:grid; grid-template-columns: repeat(4,1fr); gap:1rem; }
.step { background:#fff; border:1px solid var(--border); border-radius: var(--radius); padding:1rem; position:relative; }
.step strong { color: var(--primary); font-size: 1.15rem; display:block; }
.tag-list { display:flex; flex-wrap:wrap; gap:.6rem; }
.tag { background:#eaf2ff; border:1px solid #bfd2ff; border-radius:999px; padding:.4rem .8rem; font-weight:600; color:#133f84; }
.trust-strip { display:grid; grid-template-columns: repeat(4, 1fr); gap: .8rem; }
.trust-point {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: .9rem;
  font-weight: 600;
}
.proof-list { margin: 0; padding-left: 1rem; color: var(--text-light); }
.industries-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: .8rem; }
.industry-chip {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 999px;
  text-align: center;
  padding: .65rem .9rem;
  font-weight: 600;
}

/* =========================================================
   Forms
========================================================= */
.two-col { display:grid; grid-template-columns: 1.15fr .85fr; gap:1.4rem; }
.form-card, .content-card {
  background:#fff;
  border:1px solid var(--border);
  border-radius: var(--radius);
  padding:1.2rem;
}
label { font-weight:600; font-size:.92rem; display:block; margin-bottom:.35rem; }
label .required { color: var(--danger); }
input, select, textarea {
  width:100%;
  border:1px solid #bfd0e9;
  border-radius:10px;
  padding:.7rem .8rem;
  font: inherit;
  background:#fff;
}
textarea { min-height: 120px; resize: vertical; }
input:focus, select:focus, textarea:focus {
  border-color: var(--primary);
  outline: 2px solid rgba(26, 102, 255, .15);
  outline-offset: 1px;
}
input.is-valid, select.is-valid, textarea.is-valid { border-color: var(--success); }
input.is-invalid, select.is-invalid, textarea.is-invalid { border-color: var(--danger); }
.help-text { display:block; font-size: .84rem; color: var(--text-light); margin-top: .35rem; }
.form-row { display:grid; grid-template-columns: repeat(2, 1fr); gap:.8rem; }
.input-group { margin-bottom:.85rem; }
.form-status {
  margin-top: .8rem;
  padding: .7rem .8rem;
  border-radius: 10px;
  font-size: .9rem;
}
.form-status-success { background: #eafaf3; color: #106845; border: 1px solid #bdeed7; }
.form-status-error { background: #fff1f1; color: #8f2323; border: 1px solid #ffd6d6; }

/* =========================================================
   Footer
========================================================= */
.site-footer { background: #06162e; color:#c8d6f3; padding:2.4rem 0; margin-top: 2rem; }
.footer-grid { display:grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap:1.2rem; }
.site-footer a { color:#d5e4ff; }
.site-footer h4 { margin-top: 0; margin-bottom: .6rem; }
.admin-link-subtle { font-size: .82rem; opacity: .8; margin-top: 1rem; }

/* =========================================================
   FAQ
========================================================= */
.faq-list details { background:#fff; border:1px solid var(--border); border-radius: 12px; padding: .9rem 1rem; margin-bottom:.75rem; }
.faq-list summary { font-weight: 700; cursor: pointer; }
.faq-list p { margin: .7rem 0 0; color:var(--text-light); }

/* =========================================================
   AI chatbot
========================================================= */
.chatbot-section { padding-top: 0; }
.chatbot-shell {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem;
}
.chatbot-head h2 { margin: 0; }
.chatbot-head p { margin: .4rem 0 1rem; }
.chatbot-messages {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #f8fbff;
  min-height: 260px;
  max-height: 460px;
  overflow-y: auto;
  padding: .8rem;
}
.chat-row { display: flex; margin-bottom: .7rem; }
.chat-row.user { justify-content: flex-end; }
.chat-bubble {
  max-width: min(680px, 86%);
  border-radius: 12px;
  padding: .62rem .75rem;
  font-size: .95rem;
  line-height: 1.45;
  white-space: pre-wrap;
}
.chat-row.user .chat-bubble { background: #1a66ff; color: #fff; }
.chat-row.bot .chat-bubble { background: #eaf2ff; color: #123268; }
.chatbot-input-row {
  margin-top: .75rem;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: .6rem;
}
.chatbot-status { min-height: 1.2em; margin-top: .5rem; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* =========================================================
   Admin page
========================================================= */
.admin-layout { display:grid; grid-template-columns: 1.15fr .85fr; gap:1rem; align-items:start; }
.admin-access-gate { margin-bottom: 1rem; }
.admin-access-form { margin-top: .8rem; }
.admin-actions { display:flex; flex-wrap:wrap; gap:.6rem; margin-top: 1rem; }
.line-table, .invoice-table, .history-table { width:100%; border-collapse: collapse; font-size: .92rem; }
.line-table th,
.line-table td,
.invoice-table th,
.invoice-table td,
.history-table th,
.history-table td { border:1px solid var(--border); padding:.45rem; vertical-align: top; }
.line-table input { min-width: 0; }
.invoice-preview {
  background:#fff;
  border:1px solid var(--border);
  border-radius: var(--radius);
  padding:1.2rem;
  position: sticky;
  top: 95px;
}
.invoice-head { display:flex; justify-content:space-between; gap:1rem; }
.invoice-meta { font-size:.9rem; color:var(--text-light); }
.invoice-blocks { display:grid; grid-template-columns: 1fr 1fr; gap:1rem; }
.totals { margin-left:auto; width:min(330px, 100%); }
.totals .row { display:flex; justify-content:space-between; border-bottom:1px dashed var(--border); padding:.3rem 0; }
.paid-badge { display:none; color:#fff; background: var(--success); font-weight:800; padding:.35rem .7rem; border-radius:999px; letter-spacing:.04em; }
.paid-badge.show { display:inline-block; }
.history-panel { margin-top: 1rem; }
.logo-preview {
  max-height: 56px;
  object-fit: contain;
  margin-bottom: .6rem;
}

/* =========================================================
   Invoice print styles
========================================================= */
@media print {
  body {
    background:#fff;
    margin: 0;
  }
  main.section,
  main.section > .container,
  #adminPageContent,
  #adminProtectedContent,
  .admin-layout {
    margin: 0 !important;
    padding: 0 !important;
    max-width: none !important;
    width: 100% !important;
  }
  body * { visibility: hidden; }
  #invoicePreview,
  #invoicePreview * { visibility: visible; }
  .invoice-preview {
    border: none;
    box-shadow:none;
    padding:0;
    position: static;
    margin: 0;
    width: 100%;
    max-width: 100%;
  }
  #invoicePreview {
    position: absolute;
    left: 0;
    top: 0;
  }
  .invoice-table tr,
  .invoice-table td,
  .invoice-table th,
  .totals .row { page-break-inside: avoid; }
  @page { size: A4; margin: 11mm; }
}

/* =========================================================
   Responsive rules
========================================================= */
@media (max-width: 1024px) {
  .hero-grid, .two-col, .admin-layout { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .step-grid, .trust-strip, .industries-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .chatbot-input-row { grid-template-columns: 1fr; }
  .invoice-preview { position: static; }
}
@media (max-width: 760px) {
  .menu-toggle { display:block; }
  .nav-links {
    position:absolute;
    right:1rem;
    top:68px;
    background:#07224b;
    border:1px solid rgba(255,255,255,.12);
    border-radius:12px;
    padding:.8rem;
    flex-direction:column;
    min-width: 220px;
    display:none;
  }
  .nav-links.open { display:flex; }
  .badge-row,
  .card-grid,
  .form-row,
  .step-grid,
  .chatbot-input-row,
  .invoice-blocks,
  .trust-strip,
  .industries-grid,
  .footer-grid { grid-template-columns: 1fr; }
}

/* =========================================================
   Tracking page + status system
========================================================= */
.tracking-hero { padding-bottom: 2.5rem; }
.tracking-form .actions { margin-top: .5rem; }
.tracking-response { display: grid; gap: 1rem; }
.tracking-result-card .tracking-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: .35rem 1rem;
}
.tracking-summary {
  margin-top: 1rem;
  padding: .8rem;
  border-radius: 10px;
  background: #f4f8ff;
  border: 1px solid var(--border);
}
.tracking-state {
  margin: 0;
  padding: .8rem .95rem;
  border-radius: 10px;
  border: 1px solid var(--border);
}
.tracking-state-loading { background: #eef4ff; color: #19428b; }
.tracking-state-success { background: #ebfbf5; color: #0d6b46; }
.tracking-state-warning { background: #fff8e8; color: #7a5a10; }
.tracking-state-error { background: #fff1f1; color: #8f2323; }

.status-pill {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: .2rem .62rem;
  border: 1px solid transparent;
  font-size: .82rem;
  font-weight: 700;
  text-transform: capitalize;
}
.status-delivered { background: #eafaf3; color: #0f7f52; border-color: #bcead5; }
.status-in-transit { background: #eaf2ff; color: #1d54b5; border-color: #bfd2ff; }
.status-out-for-delivery { background: #e6fbf8; color: #0d7d73; border-color: #afede6; }
.status-exception { background: #fff1ef; color: #9a3729; border-color: #ffd4ce; }
.status-unknown { background: #f1f4f8; color: #5f6f85; border-color: #d5deea; }
.status-info { background: #eef4ff; color: #2b519d; border-color: #cad9f8; }

.tracking-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .7rem;
}
.tracking-timeline .timeline-step {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: .8rem;
}
.timeline-marker {
  margin-top: .3rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid #95a9cd;
  background: #fff;
}
.timeline-step.is-complete .timeline-marker {
  border-color: #1d54b5;
  background: #1d54b5;
}
.timeline-step.is-exception .timeline-marker {
  border-color: #b43f34;
  background: #ffd7d2;
}
.timeline-step p {
  margin: .2rem 0 0;
  color: var(--text-light);
  font-size: .93rem;
}

.compact-actions { margin-bottom: 1rem; }

@media (max-width: 760px) {
  .tracking-result-card .tracking-grid { grid-template-columns: 1fr; }
}