/* ============================================
   STOCKHELM — Brand Design System
   ============================================ */

:root {
  --deep-navy:   #0a1628;
  --chart-gold:  #c9a227;
  --wave-blue:   #1e3a5f;
  --slate:       #4a5568;
  --cream:       #faf8f3;
  --seafoam:     #38a169;
  --coral:       #e53e3e;
  --pearl:       #f7fafc;
  --mist:        #e2e8f0;
  --white:       #ffffff;

  --font-sans:   system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --radius:      8px;
  --shadow-sm:   0 1px 2px rgba(10,22,40,0.06);
  --shadow-md:   0 4px 12px rgba(10,22,40,0.08);
  --shadow-lg:   0 12px 32px rgba(10,22,40,0.12);
  --max-width:   1200px;
  --nav-height:  64px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--cream);
  color: var(--slate);
  line-height: 1.6;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--wave-blue); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--chart-gold); }

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--deep-navy);
  border-bottom: 2px solid var(--chart-gold);
  height: var(--nav-height);
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--white);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 1px;
}

.nav-brand img { width: 32px; height: 32px; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
}

.nav-links a {
  color: rgba(255,255,255,0.75);
  font-size: 13px;
  font-weight: 500;
  padding: 8px 12px;
  border-radius: var(--radius);
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--chart-gold);
  background: rgba(201,162,39,0.08);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.btn-gold {
  background: var(--chart-gold);
  color: var(--deep-navy);
}
.btn-gold:hover { background: #b8941f; color: var(--deep-navy); }

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.25);
}
.btn-outline:hover { border-color: var(--chart-gold); color: var(--chart-gold); }

.btn-navy {
  background: var(--deep-navy);
  color: var(--white);
}
.btn-navy:hover { background: var(--wave-blue); }

.btn-sm { padding: 6px 14px; font-size: 12px; }

.btn-exit {
  background: var(--wave-blue);
  color: white;
  padding: 4px 10px;
  font-size: 12px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  font-weight: 600;
}
.btn-exit:hover { background: var(--deep-navy); }

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--white);
  font-size: 22px;
  cursor: pointer;
}

/* ============================================
   HERO
   ============================================ */
.hero {
  background: linear-gradient(160deg, var(--deep-navy) 0%, var(--wave-blue) 100%);
  color: var(--white);
  padding: 80px 24px 64px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 60px;
  background: linear-gradient(to top, var(--cream), transparent);
}

.hero-inner { max-width: var(--max-width); margin: 0 auto; position: relative; z-index: 1; }

.hero-logo { width: 80px; height: 80px; margin: 0 auto 20px; }

.hero h1 {
  font-size: 42px;
  font-weight: 800;
  letter-spacing: 2px;
  margin-bottom: 8px;
  color: var(--white);
}

.hero-sub {
  font-size: 18px;
  color: rgba(255,255,255,0.7);
  margin-bottom: 32px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.hero-tagline {
  font-style: italic;
  color: var(--chart-gold);
  font-size: 14px;
  margin-bottom: 28px;
  opacity: 0.9;
}

.hero-cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ============================================
   SECTIONS
   ============================================ */
.section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 24px;
}

.section--tight { padding-top: 0; }
.section--top-24 { padding-top: 24px; }

.section-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--deep-navy);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-title .icon { font-size: 20px; }

.section-sub {
  color: var(--slate);
  font-size: 14px;
  margin-bottom: 28px;
}

.gold-rule {
  width: 48px;
  height: 3px;
  background: var(--chart-gold);
  margin-bottom: 20px;
  border-radius: 2px;
}

/* ============================================
   CARDS
   ============================================ */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.card-grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

.card-grid--2col {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--mist);
  transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--deep-navy);
  margin-bottom: 6px;
}

.card p {
  font-size: 13px;
  color: var(--slate);
  line-height: 1.5;
}

.card-meta {
  font-size: 11px;
  color: #a0aec0;
  margin-top: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.card-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
}

.badge-green { background: rgba(56,161,105,0.12); color: var(--seafoam); }
.badge-red   { background: rgba(229,62,62,0.10); color: var(--coral); }
.badge-gold  { background: rgba(201,162,39,0.12); color: #966f0d; }
.badge-blue  { background: rgba(30,58,95,0.10); color: var(--wave-blue); }

/* ============================================
   TABLES
   ============================================ */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.data-table thead {
  background: var(--deep-navy);
  color: var(--white);
}

.data-table th,
.data-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--mist);
}

.data-table th {
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.data-table tbody tr:hover { background: var(--pearl); }

.data-table .up { color: var(--seafoam); font-weight: 600; }
.data-table .down { color: var(--coral); font-weight: 600; }

/* ============================================
   FORMS
   ============================================ */
.form-group { margin-bottom: 16px; }

.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--deep-navy);
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--mist);
  border-radius: var(--radius);
  font-size: 14px;
  font-family: var(--font-sans);
  background: var(--white);
  color: var(--deep-navy);
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--chart-gold);
  box-shadow: 0 0 0 3px rgba(201,162,39,0.15);
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ============================================
   STATS
   ============================================ */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 20px;
  border: 1px solid var(--mist);
  box-shadow: var(--shadow-sm);
}

.stat-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: #a0aec0;
  margin-bottom: 6px;
}

.stat-value {
  font-size: 28px;
  font-weight: 800;
  color: var(--deep-navy);
  line-height: 1;
}

.stat-change {
  font-size: 12px;
  margin-top: 6px;
  font-weight: 600;
}

/* ============================================
   ALERTS / TOASTS
   ============================================ */
.alert {
  padding: 12px 18px;
  border-radius: var(--radius);
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.alert-gold {
  background: rgba(201,162,39,0.10);
  border: 1px solid rgba(201,162,39,0.25);
  color: #7a5c0a;
}

.alert-blue {
  background: rgba(30,58,95,0.08);
  border: 1px solid rgba(30,58,95,0.15);
  color: var(--wave-blue);
}

.alert-green {
  background: rgba(56,161,105,0.10);
  border: 1px solid rgba(56,161,105,0.2);
  color: var(--seafoam);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--deep-navy);
  color: rgba(255,255,255,0.5);
  padding: 40px 24px 24px;
  margin-top: 40px;
  border-top: 2px solid var(--chart-gold);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 32px;
}

.footer h4 {
  color: var(--white);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer a {
  display: block;
  color: rgba(255,255,255,0.5);
  font-size: 13px;
  padding: 4px 0;
}

.footer a:hover { color: var(--chart-gold); }

.footer-bottom {
  max-width: var(--max-width);
  margin: 32px auto 0;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.08);
  text-align: center;
  font-size: 12px;
  color: rgba(255,255,255,0.35);
}

/* ============================================
   LOGIN PAGE
   ============================================ */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, var(--deep-navy) 0%, var(--wave-blue) 100%);
  padding: 24px;
}

.login-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 40px;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow-lg);
  text-align: center;
}

.login-card .helm-logo { width: 56px; height: 56px; margin: 0 auto 16px; }

.login-card h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--deep-navy);
  margin-bottom: 4px;
}

.login-card .sub {
  font-size: 13px;
  color: var(--slate);
  margin-bottom: 24px;
}

/* ============================================
   UTILITIES
   ============================================ */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.flex { display: flex; }
.gap-2 { gap: 12px; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }

/* ============================================
   ACCESSIBILITY
   ============================================ */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--chart-gold);
  outline-offset: 2px;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-links.mobile-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--nav-height);
    left: 0; right: 0;
    background: var(--deep-navy);
    padding: 16px 24px;
    border-bottom: 2px solid var(--chart-gold);
    z-index: 999;
  }
  .mobile-toggle { display: block; }
  .hero h1 { font-size: 28px; }
  .hero-sub { font-size: 15px; }
  .section { padding: 32px 16px; }
  .card-grid { grid-template-columns: 1fr; }
  .card-grid--2col { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: 1fr 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .stats-row { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .login-card { padding: 28px 20px; }
}