/* ============================================================
   IPWeight - Design System & Shared Styles (Supabase-inspired)
   ============================================================
   Color: emerald green primary (#3ecf8e) on white canvas.
   Font: Inter at weight 500 display / 400 body.
   Cards: 1px hairline borders instead of shadows.
   Buttons: 6px radius, near-black text on emerald fill.
   ============================================================ */

/* ============================================================
   1. Design Tokens (CSS Custom Properties)
   ============================================================ */
:root {
  /* Brand & Accent */
  --color-primary: #3ecf8e;
  --color-primary-deep: #24b47e;
  --color-primary-soft: #4ade80;
  --color-accent: var(--color-primary);
  --color-accent-hover: var(--color-primary-deep);
  --color-accent-dark: #24b47e;

  /* Status Colors */
  --color-success: #34c759;
  --color-warning: #ff9500;
  --color-danger: #ff3b30;
  --color-purple: #af52de;

  /* Risk Score Colors */
  --color-risk-clean: var(--color-success);
  --color-risk-low: var(--color-warning);
  --color-risk-medium: #f97316;
  --color-risk-high: var(--color-danger);

  /* Badge Colors */
  --color-badge-idc: #ff3b30;
  --color-badge-residential: #34c759;
  --color-badge-business: #007aff;
  --color-badge-education: #af52de;
  --color-badge-mobile: #ff9500;
  --color-badge-unknown: #8e8e93;

  /* Status Colors (aliases for templates) */
  --color-status-ok: #34c759;
  --color-status-err: #ff3b30;
  --color-status-partial: #ff9500;
  --color-status-unknown: #8e8e93;

  /* Surfaces — Supabase white-canvas system */
  --color-bg: #ffffff;
  --color-bg-secondary: #fafafa;
  --color-card-bg: #ffffff;
  --color-card-shadow: 0 1px 3px rgba(0,0,0,0.04);
  --color-card-border: #ededed;
  --color-navbar-bg: rgba(255,255,255,0.92);
  --color-border-subtle: #ededed;
  --color-border-light: #dfdfdf;
  --color-spinner-track: #ededed;

  /* Typography — Inter (open-source analogue to Circular) */
  --font-family: 'Inter', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, monospace;

  /* Text — near-black ink system */
  --color-text-primary: #171717;
  --color-text-secondary: #707070;
  --color-text-muted: #9a9a9a;

  /* On-primary (text on emerald button) — near-black, NOT white */
  --color-on-primary: #171717;
  --color-on-dark: #ffffff;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;

  /* Radii — Supabase: 6px buttons, 12px cards */
  --radius-card: 12px;
  --radius-button: 6px;
  --radius-pill: 999px;
  --radius-input: 10px;
}

/* ============================================================
   2. Dark Theme Tokens (via .dark-mode class, set by JS)
   ============================================================ */
html.dark-mode {
  --color-bg: #1c1c1c;
  --color-bg-secondary: #202020;
  --color-text-primary: #ffffff;
  --color-text-secondary: #9a9a9a;
  --color-text-muted: #707070;
  --color-accent: #3ecf8e;
  --color-accent-hover: #24b47e;
  --color-accent-dark: #24b47e;

  --color-navbar-bg: rgba(28,28,28,0.92);
  --color-card-bg: #202020;
  --color-card-shadow: 0 1px 3px rgba(0,0,0,0.3);
  --color-card-border: rgba(255,255,255,0.08);
  --color-border-subtle: rgba(255,255,255,0.08);
  --color-border-light: rgba(255,255,255,0.12);
  --color-spinner-track: rgba(255,255,255,0.1);

  --color-badge-idc: #ff453a;
  --color-badge-residential: #30d158;
  --color-badge-business: #0a84ff;
  --color-badge-education: #bf5af2;
  --color-badge-mobile: #ff9f0a;
  --color-badge-unknown: #8e8e93;

  --color-success: #30d158;
  --color-warning: #ff9f0a;
  --color-danger: #ff453a;
}

/* ============================================================
   3. Reset & Base
   ============================================================ */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  background: var(--color-bg);
  color: var(--color-text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  text-decoration: none;
  color: inherit;
}

/* ============================================================
   4. Navigation Bar (solid white, 1px hairline bottom)
   ============================================================ */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-navbar-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-card-border);
}

.nav-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 52px;
}

.logo {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--color-text-primary);
  letter-spacing: -0.42px;
  text-decoration: none;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  gap: 1.75rem;
  list-style: none;
  overflow-x: auto;
  white-space: nowrap;
  -ms-overflow-style: none;
  scrollbar-width: none;
}

.nav-links::-webkit-scrollbar {
  display: none;
}

.nav-links a {
  color: var(--color-text-secondary);
  font-size: 0.82rem;
  font-weight: 500;
  padding: 0.25rem 0;
  display: block;
  transition: color 0.2s;
  text-decoration: none;
  white-space: nowrap;
}

.nav-links a:hover {
  color: var(--color-text-primary);
}

.nav-links a.active {
  color: var(--color-primary);
}

/* Theme Toggle Button */
.theme-toggle {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.35rem;
  border-radius: var(--radius-button);
  transition: color 0.2s, background 0.15s;
  flex-shrink: 0;
  margin-left: 0.75rem;
}

.theme-toggle:hover {
  color: var(--color-text-primary);
  background: rgba(0, 0, 0, 0.04);
}

html.dark-mode .theme-toggle:hover {
  background: rgba(255, 255, 255, 0.08);
}

.theme-toggle .sun-icon {
  display: none;
}

.theme-toggle .moon-icon {
  display: block;
}

html.dark-mode .theme-toggle .sun-icon {
  display: block;
}

html.dark-mode .theme-toggle .moon-icon {
  display: none;
}

/* ============================================================
   5. Hero Section
   ============================================================ */
.hero {
  padding: 4rem var(--spacing-md) 2.5rem;
  text-align: center;
  background: var(--color-bg);
}

.hero h1 {
  color: var(--color-text-primary);
  font-size: 1.8rem;
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
  letter-spacing: -0.72px;
}

.hero .subtitle {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  margin-bottom: var(--spacing-lg);
}

/* ============================================================
   6. Content Area
   ============================================================ */
.content {
  max-width: 900px;
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-lg) 3rem;
  width: 100%;
  flex: 1;
}

/* ============================================================
   7. Card System (1px hairline border, subtle shadow)
   ============================================================ */
.card {
  background: var(--color-card-bg);
  border-radius: var(--radius-card);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--color-card-shadow);
  overflow: hidden;
  margin-bottom: 1.25rem;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 1px solid var(--color-border-subtle);
}

.card-header h2 {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-primary);
}

.data-row {
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--color-border-subtle);
  min-height: 48px;
  padding: 0.6rem var(--spacing-lg);
}

.data-row:last-child {
  border-bottom: none;
}

.data-row:hover {
  background: rgba(62, 207, 142, 0.03);
}

html.dark-mode .data-row:hover {
  background: rgba(62, 207, 142, 0.06);
}

.row-label {
  flex: 0 0 140px;
  color: var(--color-text-secondary);
  font-size: 0.84rem;
  font-weight: 400;
}

.row-value {
  flex: 1;
  display: flex;
  align-items: center;
  font-size: 0.9rem;
  color: var(--color-text-primary);
  font-weight: 500;
  word-break: break-word;
  flex-wrap: wrap;
  gap: 0.35rem;
}

/* ============================================================
   8. Badge System
   ============================================================ */
.badge {
  display: inline-block;
  padding: 0.22rem 0.7rem;
  border-radius: var(--radius-pill);
  font-size: 0.78rem;
  font-weight: 600;
  white-space: nowrap;
}

.badge-idc {
  background: color-mix(in srgb, var(--color-badge-idc) 10%, transparent);
  color: var(--color-badge-idc);
}

.badge-residential {
  background: color-mix(in srgb, var(--color-badge-residential) 12%, transparent);
  color: var(--color-badge-residential);
}

.badge-business {
  background: color-mix(in srgb, var(--color-badge-business) 10%, transparent);
  color: var(--color-badge-business);
}

.badge-education {
  background: color-mix(in srgb, var(--color-badge-education) 10%, transparent);
  color: var(--color-badge-education);
}

.badge-mobile {
  background: color-mix(in srgb, var(--color-badge-mobile) 10%, transparent);
  color: var(--color-badge-mobile);
}

.badge-unknown {
  background: color-mix(in srgb, var(--color-badge-unknown) 12%, transparent);
  color: var(--color-badge-unknown);
}

/* ============================================================
   9. Risk Score Components
   ============================================================ */
.score-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex: 1;
}

.score-num {
  font-weight: 600;
  font-size: 0.95rem;
  min-width: 3rem;
}

.score-bar {
  flex: 1;
  height: 6px;
  background: var(--color-spinner-track);
  border-radius: 3px;
  overflow: hidden;
  max-width: 280px;
}

.score-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.6s ease;
}

.score-text {
  font-size: 0.82rem;
  color: var(--color-text-secondary);
  margin-left: 0.25rem;
}

/* ============================================================
   10. Status Indicators
   ============================================================ */
.status-ok {
  color: var(--color-status-ok);
  font-weight: 600;
  font-size: 0.82rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.status-ok::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--color-status-ok);
  border-radius: 50%;
}

.status-err {
  color: var(--color-status-err);
  font-weight: 600;
  font-size: 0.82rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.status-err::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--color-status-err);
  border-radius: 50%;
}

.status-partial {
  color: var(--color-status-partial);
  font-weight: 600;
  font-size: 0.82rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.status-partial::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--color-status-partial);
  border-radius: 50%;
}

.status-unknown {
  color: var(--color-status-unknown);
  font-weight: 600;
  font-size: 0.82rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.status-unknown::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--color-status-unknown);
  border-radius: 50%;
}

/* Native IP indicators */
.native-yes {
  color: var(--color-success);
  font-weight: 600;
}

.native-no {
  color: var(--color-danger);
  font-weight: 600;
}

/* Flag indicators */
.flag-row {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.flag-item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  color: var(--color-text-primary);
}

.flag-yes {
  color: var(--color-success);
}

.flag-no {
  color: var(--color-danger);
}

.flag-icon {
  font-size: 1rem;
  display: flex;
  align-items: center;
}

/* Risk factor tags */
.factors-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.factor-tag {
  background: color-mix(in srgb, var(--color-text-primary) 4%, transparent);
  color: var(--color-text-secondary);
  padding: 0.3rem 0.6rem;
  border-radius: 6px;
  font-size: 0.78rem;
  font-weight: 500;
}

html.dark-mode .factor-tag {
  background: color-mix(in srgb, var(--color-text-primary) 10%, transparent);
  color: var(--color-text-secondary);
}

/* IP display utilities */
.ip-text {
  font-family: var(--font-mono);
}

.ip-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
}

.ip-hidden {
  color: var(--color-text-muted);
  font-style: italic;
}

.toggle-ip {
  cursor: pointer;
  color: var(--color-text-secondary);
  font-size: 0.8rem;
  padding: 0.2rem;
  border-radius: 6px;
  background: transparent;
  border: none;
  display: flex;
  align-items: center;
  transition: background 0.15s;
}

.toggle-ip:hover {
  background: color-mix(in srgb, var(--color-text-primary) 4%, transparent);
}

/* ============================================================
   11. Summary Wrap (Detection Pages)
   ============================================================ */
.summary-wrap {
  background: var(--color-card-bg);
  border-radius: var(--radius-card);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--color-card-shadow);
  padding: 1.25rem var(--spacing-lg);
  max-width: 640px;
  margin: 0 auto 1.25rem;
  display: none;
}

.summary-text {
  color: var(--color-text-primary);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.summary-detail {
  color: var(--color-text-secondary);
  font-size: 0.85rem;
}

.ok {
  color: var(--color-success);
}

.warn {
  color: var(--color-danger);
}

/* ============================================================
   12. Retest & Primary Buttons
   ============================================================ */
.retest-btn {
  background: var(--color-primary);
  border: none;
  color: var(--color-on-primary);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.55rem 1.4rem;
  border-radius: var(--radius-button);
  cursor: pointer;
  margin-top: var(--spacing-sm);
  transition: background 0.2s;
  display: none;
}

.retest-btn:hover {
  background: var(--color-primary-deep);
}

.retest-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ============================================================
   13. Loading & Spinner
   ============================================================ */
.loading {
  text-align: center;
  padding: 3.5rem var(--spacing-md);
}

.spinner {
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 2.5px solid var(--color-spinner-track);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ============================================================
   14. Error Message
   ============================================================ */
.error-msg {
  background: color-mix(in srgb, var(--color-danger) 6%, transparent);
  border: 1px solid color-mix(in srgb, var(--color-danger) 12%, transparent);
  border-radius: var(--radius-input);
  padding: var(--spacing-md) 1.25rem;
  color: var(--color-danger);
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
}

/* ============================================================
   15. Empty State
   ============================================================ */
.empty {
  text-align: center;
  padding: 3rem var(--spacing-md);
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

/* ============================================================
   16. Latency Text
   ============================================================ */
.latency {
  color: var(--color-text-secondary);
  font-size: 0.82rem;
}

/* ============================================================
   17. Search Wrap (IP Input) — emerald focus ring
   ============================================================ */
.search-wrap {
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  gap: 0.5rem;
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-input);
  padding: 0.35rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.search-wrap:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(62, 207, 142, 0.15), 0 1px 3px rgba(0, 0, 0, 0.04);
}

.search-wrap input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--color-text-primary);
  font-size: 0.95rem;
  padding: 0.55rem 0.85rem;
}

.search-wrap input::placeholder {
  color: var(--color-text-muted);
}

.search-wrap button {
  background: var(--color-primary);
  border: none;
  color: var(--color-on-primary);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0 1.4rem;
  border-radius: var(--radius-button);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  transition: background 0.2s;
}

.search-wrap button:hover {
  background: var(--color-primary-deep);
}

.search-wrap button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ============================================================
   18. Multi-source Type Comparison (index.html)
   ============================================================ */
.type-compare-grid {
  width: 100%;
}

.type-compare-row {
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--color-border-subtle);
  min-height: 40px;
  padding: 0.5rem var(--spacing-lg);
  font-size: 0.85rem;
}

.type-compare-row:last-child {
  border-bottom: none;
}

.type-compare-row.final {
  background: rgba(62, 207, 142, 0.04);
  font-weight: 600;
}

.type-compare-provider {
  flex: 0 0 120px;
  color: var(--color-text-secondary);
  font-weight: 400;
}

.type-compare-cat {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.type-compare-flags {
  display: flex;
  gap: 0.6rem;
  flex-shrink: 0;
}

.type-flag {
  font-size: 0.75rem;
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-weight: 500;
}

.type-flag-yes {
  background: color-mix(in srgb, var(--color-danger) 8%, transparent);
  color: var(--color-danger);
}

.type-flag-no {
  background: color-mix(in srgb, var(--color-text-primary) 2%, transparent);
  color: var(--color-text-muted);
}

/* ============================================================
   19. Map Card
   ============================================================ */
.map-card-body {
  padding: 0;
  height: 240px;
  overflow: hidden;
}

.map-card-body #ipMapContainer {
  width: 100%;
  height: 100%;
}

/* ============================================================
   20. Footer
   ============================================================ */
.footer {
  padding: var(--spacing-xl) var(--spacing-md);
  text-align: center;
}

.footer-copy {
  color: var(--color-text-secondary);
  font-size: 0.75rem;
}

/* ============================================================
   21. Responsive: Tablet (max-width: 640px)
   ============================================================ */
@media (max-width: 640px) {
  .nav-links {
    gap: 1.25rem;
  }

  .nav-links a {
    font-size: 0.78rem;
  }

  .hero {
    padding: 3rem var(--spacing-md) 2rem;
  }

  .hero h1 {
    font-size: 1.5rem;
  }

  .row-label {
    flex: 0 0 100px;
    font-size: 0.78rem;
  }

  .row-value {
    font-size: 0.85rem;
  }

  .data-row {
    padding: 0.6rem var(--spacing-md);
  }

  .score-bar {
    max-width: 160px;
  }

  .type-compare-row {
    padding: 0.5rem var(--spacing-md);
    flex-wrap: wrap;
    gap: 0.25rem;
  }

  .type-compare-provider {
    flex: 0 0 90px;
    font-size: 0.78rem;
  }

  .type-compare-flags {
    gap: 0.4rem;
  }

  .map-card-body {
    height: 200px;
  }

  .summary-wrap {
    padding: var(--spacing-md);
  }
}

/* ============================================================
   22. Responsive: Mobile (max-width: 480px)
   ============================================================ */
@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.35rem;
  }

  .hero .subtitle {
    font-size: 0.85rem;
  }

  .nav-inner {
    padding: 0 var(--spacing-md);
  }

  .search-wrap {
    border-radius: var(--radius-button);
  }

  .data-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
    padding: 0.75rem var(--spacing-md);
  }

  .row-label {
    flex: none;
  }

  .flag-row {
    gap: 0.75rem;
  }

  .summary-wrap {
    padding: var(--spacing-md);
  }
}