/* ════════════════════════════════════════════════════════════════
   ICCOM Platform — Shared Design System  v2.1.0
   Served at: https://iccom.co.uk/css/portal-shared.css

   Used by all ICCOM vertical platforms:
     HydroGuard (/hydroguard/)
     NIS        (/nis/)
     Connect    (/connect/)
     Energia    (/energy/)
     vPBX       (/vpbx/)

   Load order in each page:
     1. this file  (tokens + shared components)
     2. vertical's /css/shared.css  (brand overrides + vertical nav)
   ════════════════════════════════════════════════════════════════ */

/* ── Google Fonts ─────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Quicksand:wght@500;600;700&family=Nunito+Sans:wght@400;500;600;700;800&display=swap');

/* ── Design Tokens ─────────────────────────────────────────────── */
:root {
  /* ICCOM Brandbook 2026 — Core Palette */
  --navy:           #13263F;
  --navy-light:     #1E3A5F;
  --navy-dark:      #0C1A2E;
  --blue:           #299BD5;
  --iccom-blue:     #299BD5;
  --iccom-blue-light: #E3F2FD;

  /* Semantic / UI */
  --green:          #27AE60;
  --green-light:    #D1FAE5;
  --red:            #E74C3C;
  --red-light:      #FEE2E2;
  --orange:         #F39C12;
  --orange-light:   #FEF3C7;
  --purple:         #8E44AD;
  --purple-light:   #E0E7FF;

  /* Neutrals */
  --white:          #FFFFFF;
  --light:          #F4F7FA;
  --border:         #E0E6ED;
  --mid:            #7F8C8D;
  --dark:           #2C3E50;

  /* Elevation */
  --shadow:         0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg:      0 8px 24px rgba(0,0,0,0.12);
  --shadow-xl:      0 16px 48px rgba(0,0,0,0.16);

  /* Radii */
  --radius:         6px;
  --radius-lg:      10px;
  --radius-xl:      16px;

  /* Typography */
  --font:           'Nunito Sans', 'Quicksand', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display:   'Quicksand', 'Nunito Sans', sans-serif;
  --font-mono:      'JetBrains Mono', 'Menlo', 'Courier New', ui-monospace, monospace;

  /* Motion */
  --transition:     0.2s ease;
}

/* ── Reset ─────────────────────────────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html   { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body   { font-family: var(--font); color: var(--dark); line-height: 1.6; background: var(--white); }
img    { max-width: 100%; height: auto; display: block; }
a      { color: inherit; }
button { font-family: var(--font); }

/* ── Skip link (a11y) ──────────────────────────────────────────── */
.skip-link {
  position: absolute; top: -100px; left: 16px;
  background: var(--blue); color: var(--white);
  padding: 8px 16px; border-radius: 0 0 var(--radius) var(--radius);
  font-weight: 700; font-size: 14px; z-index: 10000;
  text-decoration: none; transition: top var(--transition);
}
.skip-link:focus { top: 0; }

/* ── Focus styles (a11y) ───────────────────────────────────────── */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--blue); outline-offset: 2px;
}

/* ── Layout ────────────────────────────────────────────────────── */
.container  { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.container-sm { max-width: 800px;  margin: 0 auto; padding: 0 24px; }
.section    { padding: 64px 0; }
.section-alt { background: var(--light); }
.section-title {
  font-family: var(--font-display); font-size: 32px; font-weight: 700;
  color: var(--navy); text-align: center; margin-bottom: 12px;
}
.section-subtitle {
  font-size: 16px; color: var(--mid); text-align: center;
  max-width: 700px; margin: 0 auto 48px;
}

/* ── Buttons ───────────────────────────────────────────────────── */
/* .btn and .iccom-btn are interchangeable */
.btn, .iccom-btn {
  display: inline-block; padding: 12px 24px;
  border-radius: var(--radius); font-weight: 700; font-size: 14px;
  text-decoration: none; border: 2px solid transparent; cursor: pointer;
  transition: all var(--transition); text-align: center; line-height: 1.4;
  font-family: var(--font);
}
.btn-primary, .iccom-btn.btn-primary {
  background: var(--blue); color: var(--white); border-color: var(--blue);
}
.btn-primary:hover, .iccom-btn.btn-primary:hover {
  background: #1d87c0; border-color: #1d87c0; transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(41,155,213,0.3);
}
.btn-secondary, .iccom-btn.btn-secondary {
  background: var(--light); color: var(--navy); border-color: var(--border);
}
.btn-secondary:hover { background: var(--border); }
.btn-ghost, .iccom-btn.btn-ghost {
  background: transparent; color: var(--blue); border-color: var(--blue);
}
.btn-ghost:hover { background: var(--blue); color: var(--white); }
.btn-danger, .iccom-btn.btn-danger {
  background: var(--red); color: var(--white); border-color: var(--red);
}
.btn-danger:hover { background: #c0392b; border-color: #c0392b; }
.btn-sm  { padding: 7px 14px;  font-size: 12px; }
.btn-lg  { padding: 14px 32px; font-size: 16px; }
.btn-block { display: block; width: 100%; }

/* ── Cards ─────────────────────────────────────────────────────── */
/* .card and .iccom-card are interchangeable */
.card, .iccom-card {
  background: var(--white); border-radius: var(--radius-lg);
  padding: 24px; box-shadow: var(--shadow);
}
.card-accent, .iccom-card-accent { border-top: 3px solid var(--blue); }
.card-lg, .iccom-card-lg { padding: 32px; }

/* ── Forms ─────────────────────────────────────────────────────── */
.form-group   { margin-bottom: 16px; }
.form-label   {
  display: block; font-size: 13px; font-weight: 600;
  color: var(--navy); margin-bottom: 6px;
}
.form-input {
  width: 100%; padding: 10px 14px;
  border: 2px solid var(--border); border-radius: var(--radius);
  font-size: 14px; font-family: var(--font); outline: none;
  transition: border-color var(--transition); background: var(--white); color: var(--dark);
}
.form-input:focus      { border-color: var(--blue); }
.form-input.error      { border-color: var(--red); }
.form-input::placeholder { color: #9CA3AF; }
.form-error { color: var(--red); font-size: 12px; margin-top: 4px; display: none; }
.form-error.visible    { display: block; }
.form-select {
  appearance: none; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 16 16' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M4 6l4 4 4-4' stroke='%23555' stroke-width='2' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center;
  background-size: 16px; padding-right: 36px;
}
textarea.form-input    { resize: vertical; min-height: 80px; }
.form-dark .form-input {
  background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.2); color: var(--white);
}
.form-dark .form-input::placeholder { color: #8899AA; }
.form-dark .form-input:focus  { border-color: var(--blue); }
.form-dark .form-label        { color: #B0C4D8; }

/* ── Badges ────────────────────────────────────────────────────── */
.badge {
  display: inline-block; padding: 3px 10px; border-radius: 4px;
  font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px;
}
.badge-critical { background: var(--red-light);    color: #991B1B; }
.badge-high     { background: var(--orange-light);  color: #92400E; }
.badge-medium   { background: var(--iccom-blue-light); color: #1E40AF; }
.badge-low      { background: var(--green-light);   color: #065F46; }
.badge-ok       { background: var(--green-light);   color: #065F46; }
.badge-info     { background: var(--purple-light);  color: #3730A3; }

/* ── Tables ────────────────────────────────────────────────────── */
.table            { width: 100%; border-collapse: collapse; font-size: 13px; }
.table th         { background: var(--navy); color: var(--white); padding: 10px 14px; text-align: left; font-weight: 600; }
.table td         { padding: 10px 14px; border-bottom: 1px solid var(--border); }
.table tr:hover   { background: var(--light); }

/* ── KPI cards ─────────────────────────────────────────────────── */
.kpi-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px; margin: 20px 0;
}
.kpi-card {
  background: var(--white); border-radius: var(--radius-lg);
  padding: 20px; text-align: center;
  border-top: 4px solid var(--blue); box-shadow: var(--shadow);
}
.kpi-val   { font-size: 32px; font-weight: 800; color: var(--navy); }
.kpi-label { font-size: 12px; color: var(--mid); margin-top: 4px; }
.kpi-card.danger  .kpi-val { color: var(--red); }
.kpi-card.danger           { border-top-color: var(--red); }
.kpi-card.warning .kpi-val { color: var(--orange); }
.kpi-card.warning          { border-top-color: var(--orange); }

/* ── Alerts / Messages ─────────────────────────────────────────── */
.msg-success {
  display: none; background: rgba(5,150,105,0.08); border: 1px solid rgba(5,150,105,0.2);
  color: var(--green); padding: 20px; border-radius: var(--radius-lg); text-align: center;
}
.msg-success.visible { display: block; }
.msg-success h3 { font-size: 18px; margin-bottom: 8px; }
.msg-success p  { font-size: 14px; opacity: 0.8; }
.alert {
  padding: 12px 16px; border-radius: var(--radius);
  font-size: 14px; border-left: 4px solid transparent;
}
.alert-error  { background: var(--red-light);    border-color: var(--red);    color: #7f1d1d; }
.alert-success{ background: var(--green-light);  border-color: var(--green);  color: #064e3b; }
.alert-info   { background: var(--iccom-blue-light); border-color: var(--blue); color: #1e3a5f; }

/* ── Sticky CTA ────────────────────────────────────────────────── */
.sticky-cta {
  position: fixed; bottom: 0; left: 0; right: 0;
  background: var(--navy); padding: 12px 24px;
  display: flex; align-items: center; justify-content: center; gap: 16px;
  z-index: 999; box-shadow: 0 -4px 16px rgba(0,0,0,0.15);
  transform: translateY(100%); transition: transform 0.3s ease;
}
.sticky-cta.visible { transform: translateY(0); }
.sticky-cta p { color: #B0C4D8; font-size: 14px; font-weight: 500; }

/* ── Responsive ────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .section          { padding: 40px 0; }
  .section-title    { font-size: 24px; }
  .kpi-grid         { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .container        { padding: 0 16px; }
  .kpi-grid         { grid-template-columns: 1fr; }
  .btn-lg           { padding: 12px 20px; font-size: 14px; }
}