/* ================================================================
   GoldFox Design System — Single Source of Truth
   ----------------------------------------------------------------
   HOW TO CHANGE THE THEME:
   Edit ONLY the :root variables below.
   Every page, component, button, border and shadow
   that references these variables will update automatically.
   ================================================================ */

:root {
  /* ── Brand ─────────────────────────────────────────── */
  --gf-primary:         #1c1c1e;
  --gf-primary-hover:   #2d2d30;

  /* ── RGB companions (for rgba() usage) ─────────────── */
  --gf-primary-rgb:     28, 28, 30;
  --gf-danger-rgb:      239, 68, 68;
  --gf-success-rgb:     34, 197, 94;
  --gf-warning-rgb:     245, 158, 11;

  /* ── Page Backgrounds ───────────────────────────────── */
  --gf-bg:              #f5f5f7;
  --gf-bg-card:         #ffffff;
  --gf-bg-subtle:       rgba(0,0,0,0.025);
  --gf-bg-hover:        rgba(28,28,30,0.03);

  /* ── Text ───────────────────────────────────────────── */
  --gf-text:            #111111;
  --gf-text-secondary:  rgba(0,0,0,0.55);
  --gf-text-muted:      rgba(0,0,0,0.40);
  --gf-text-faint:      rgba(0,0,0,0.25);

  /* ── Borders ────────────────────────────────────────── */
  --gf-border:          rgba(0,0,0,0.08);
  --gf-border-strong:   rgba(0,0,0,0.15);

  /* ── Accent (Purple) — used only for illustrative gradients, */
  /*    never for chrome/navigation/menus.                      */
  --gf-accent-purple-deep:  #5530C8;
  --gf-accent-purple:       #7c3aed;
  --gf-accent-purple-light: #a855f7;
  --gf-accent-purple-soft:  #a78bfa;

  /* ── Status colors (success/warning/danger/info) ────── */
  --gf-success:         #22c55e;
  --gf-success-deep:    #16a34a;
  --gf-success-soft:    rgba(34,197,94,0.12);
  --gf-warning:         #f59e0b;
  --gf-warning-deep:    #d97706;
  --gf-warning-soft:    rgba(245,158,11,0.12);
  --gf-danger:          #ef4444;
  --gf-danger-deep:     #dc2626;
  --gf-danger-soft:     rgba(239,68,68,0.12);
  --gf-info:            #3b82f6;
  --gf-info-deep:       #2563eb;
  --gf-info-soft:       rgba(59,130,246,0.12);

  /* ── Chart palette (used for data viz / pipeline gradient) ─ */
  --gf-chart-1: #60a5fa;
  --gf-chart-2: #3b82f6;
  --gf-chart-3: #6366f1;
  --gf-chart-4: #f59e0b;
  --gf-chart-5: #f97316;
  --gf-chart-6: #ea580c;
  --gf-chart-7: #22c55e;
  --gf-chart-8: #059669;
  --gf-chart-9: #ef4444;

  /* ── App chrome dimensions (used by authenticated layout) ── */
  --gf-sidebar-width:           260px;
  --gf-sidebar-collapsed-width: 70px;
  --gf-navbar-height:           64px;

  /* ── Chat / mobile canvas (B&W brand theme) ─────────── */
  --gf-chat-primary:       #1c1c1e;
  --gf-chat-primary-deep:  #2d2d30;
  --gf-chat-bg-dark:       #111111;
  --gf-chat-bg-panel:      #1a1a1a;
  --gf-chat-bg-input:      #0a0a0a;

  /* ── Neutral grey scale (Tailwind-aligned) ──────────── */
  --gf-grey-50:  #f9fafb;
  --gf-grey-100: #f3f4f6;
  --gf-grey-200: #e5e7eb;
  --gf-grey-300: #d1d5db;
  --gf-grey-400: #9ca3af;
  --gf-grey-500: #6b7280;
  --gf-grey-600: #4b5563;
  --gf-grey-700: #374151;
  --gf-grey-800: #1f2937;
  --gf-grey-900: #111827;

  /* ── Logo / Icon ────────────────────────────────────── */
  --gf-logo-filter:     brightness(0) saturate(0);

  /* ── Typography ─────────────────────────────────────── */
  --gf-font:            'Inter', sans-serif;
  --gf-font-display:    'Space Grotesk', sans-serif;

  /* ── Shadows ────────────────────────────────────────── */
  --gf-shadow-sm:       0 2px 8px rgba(0,0,0,0.06);
  --gf-shadow-md:       0 1px 0 rgba(255,255,255,0.9) inset,
                        0 2px 4px rgba(0,0,0,0.04),
                        0 8px 32px rgba(0,0,0,0.08);
  --gf-shadow-lg:       0 4px 8px rgba(0,0,0,0.06),
                        0 16px 40px rgba(0,0,0,0.10),
                        0 32px 64px rgba(0,0,0,0.06);
  --gf-shadow-btn:      0 2px 8px rgba(28,28,30,0.18);
  --gf-shadow-btn-hover:0 6px 20px rgba(28,28,30,0.24);

  /* ── Radius ─────────────────────────────────────────── */
  --gf-radius-sm:  8px;
  --gf-radius-md:  12px;
  --gf-radius-lg:  16px;
  --gf-radius-xl:  24px;
}

/* ── Global base ────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html, body {
  background: var(--gf-bg);
  color: var(--gf-text);
  font-family: var(--gf-font);
  scroll-behavior: smooth;
}

/* ================================================================
   SHARED COMPONENTS
   These apply everywhere the CSS is loaded.
   ================================================================ */

/* ── Navbar ─────────────────────────────────────────────────── */
.gf-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 48px;
  transition: background 0.3s, backdrop-filter 0.3s;
}
.gf-nav.scrolled {
  /* Strong frosted-glass on scroll */
  background: rgba(245,245,247,0.62) !important;
  backdrop-filter: saturate(180%) blur(28px) !important;
  -webkit-backdrop-filter: saturate(180%) blur(28px) !important;
  border-bottom: 1px solid rgba(0,0,0,0.06) !important;
  box-shadow: 0 1px 0 rgba(255,255,255,0.5) inset,
              0 4px 20px rgba(0,0,0,0.05) !important;
}
.gf-nav-logo img {
  height: 40px; width: auto;
  filter: var(--gf-logo-filter);
}
.gf-nav-links { display: flex; gap: 32px; list-style: none; }
.gf-nav-links a {
  color: var(--gf-text-secondary);
  text-decoration: none; font-size: 0.875rem; font-weight: 500;
  transition: color 0.2s;
}
.gf-nav-links a:hover,
.gf-nav-links a.active { color: var(--gf-primary); }
.gf-nav-right { display: flex; align-items: center; gap: 16px; }

/* ── Login Button ───────────────────────────────────────────── */
.btn-login {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 24px;
  background: var(--gf-primary);
  color: #ffffff !important;
  text-decoration: none;
  border-radius: var(--gf-radius-sm);
  font-size: 0.875rem; font-weight: 600; font-family: var(--gf-font);
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
  box-shadow: var(--gf-shadow-btn);
  border: none;
}
.btn-login:hover {
  background: var(--gf-primary-hover) !important;
  transform: translateY(-1px);
  box-shadow: var(--gf-shadow-btn-hover) !important;
  color: #ffffff !important;
}

/* ── Footer ─────────────────────────────────────────────────── */
.gf-footer {
  background: var(--gf-bg-card);
  border-top: 1px solid var(--gf-border);
  padding: 50px 0 28px;
  position: relative; z-index: 1;
}
.gf-footer .container  { max-width: 1200px; margin: 0 auto; padding: 0 48px; }
.gf-footer .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 60px; margin-bottom: 36px; }
.gf-footer .footer-brand img { height: 36px; margin-bottom: 14px; filter: var(--gf-logo-filter); }
.gf-footer .footer-brand p { color: var(--gf-text-muted); font-size: 0.875rem; line-height: 1.7; }
.gf-footer .footer-col h5 { font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--gf-text-muted); margin-bottom: 14px; }
.gf-footer .footer-col ul { list-style: none; }
.gf-footer .footer-col ul li { margin-bottom: 9px; }
.gf-footer .footer-col ul li a { color: var(--gf-text-muted); text-decoration: none; font-size: 0.875rem; transition: color 0.2s; }
.gf-footer .footer-col ul li a:hover { color: var(--gf-primary); }
.gf-footer .footer-bottom { border-top: 1px solid var(--gf-border); padding-top: 22px; display: flex; justify-content: space-between; align-items: center; }
.gf-footer .footer-bottom p { color: var(--gf-text-muted); font-size: 0.8rem; }
.gf-footer .footer-socials { display: flex; gap: 10px; }
.gf-footer .footer-socials a {
  width: 34px; height: 34px; border-radius: var(--gf-radius-sm);
  border: 1px solid var(--gf-border); display: flex; align-items: center;
  justify-content: center; color: var(--gf-text-muted); text-decoration: none;
  font-size: 0.8rem; transition: border-color 0.2s, color 0.2s;
}
.gf-footer .footer-socials a:hover { border-color: var(--gf-primary); color: var(--gf-primary); }

/* ── Mobile nav controls (hamburger, back arrow) ────────────── */
.gf-nav-back,
.gf-nav-toggle {
  display: none;  /* desktop: hidden by default */
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  background: transparent;
  border: 1px solid var(--gf-border);
  border-radius: var(--gf-radius-sm);
  color: var(--gf-text);
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
  padding: 0;
}
.gf-nav-back:hover,
.gf-nav-toggle:hover {
  background: var(--gf-bg-subtle);
  border-color: var(--gf-border-strong);
}
.gf-nav-toggle span {
  display: block;
  width: 18px; height: 2px;
  background: var(--gf-text);
  border-radius: 2px;
  position: relative;
}
.gf-nav-toggle span::before,
.gf-nav-toggle span::after {
  content: '';
  position: absolute;
  left: 0; right: 0;
  height: 2px; background: var(--gf-text); border-radius: 2px;
}
.gf-nav-toggle span::before { top: -6px; }
.gf-nav-toggle span::after  { top:  6px; }

/* ── Mobile off-canvas menu ─────────────────────────────────── */
.gf-mobile-menu {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: min(84vw, 340px);
  background: var(--gf-bg-card);
  border-left: 1px solid var(--gf-border);
  box-shadow: -8px 0 40px rgba(0,0,0,0.10);
  transform: translateX(100%);
  transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1100;
  display: flex;
  flex-direction: column;
  padding: 20px 22px;
  visibility: hidden;
}
.gf-mobile-menu.open {
  transform: translateX(0);
  visibility: visible;
}
.gf-mobile-menu-head {
  display: flex; align-items: center; justify-content: space-between;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--gf-border);
}
.gf-mobile-menu-close {
  width: 34px; height: 34px;
  background: transparent;
  border: 1px solid var(--gf-border);
  border-radius: var(--gf-radius-sm);
  color: var(--gf-text);
  font-size: 1rem;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
}
.gf-mobile-menu-close:hover {
  background: var(--gf-bg-subtle);
}
.gf-mobile-menu ul {
  list-style: none; padding: 0; margin: 18px 0 0;
  display: flex; flex-direction: column; gap: 2px;
}
.gf-mobile-menu ul li a {
  display: block;
  padding: 12px 12px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--gf-text-secondary);
  text-decoration: none;
  border-radius: var(--gf-radius-sm);
  transition: background 0.15s, color 0.15s;
}
.gf-mobile-menu ul li a:hover,
.gf-mobile-menu ul li a.active {
  background: var(--gf-bg-subtle);
  color: var(--gf-text);
}
.gf-mobile-menu-footer {
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--gf-border);
}
.gf-mobile-menu-footer .btn-login {
  width: 100%;
  justify-content: center;
  padding: 12px 20px;
}

.gf-mobile-menu-backdrop {
  position: fixed; inset: 0;
  background: rgba(17,17,17,0);
  backdrop-filter: blur(0);
  -webkit-backdrop-filter: blur(0);
  z-index: 1099;
  pointer-events: none;
  transition: background 0.28s, backdrop-filter 0.28s;
}
.gf-mobile-menu-backdrop.open {
  background: rgba(17,17,17,0.25);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  pointer-events: auto;
}
body.gf-menu-open { overflow: hidden; }

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 768px) {
  .gf-nav { padding: 12px 16px; }
  .gf-nav-links { display: none; }
  .gf-nav-right .btn-login { display: none; }   /* login moves into off-canvas menu */
  .gf-nav-toggle { display: inline-flex; }
  .gf-nav-back[data-show-mobile="1"] { display: inline-flex; }
  .gf-footer .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .gf-footer .footer-bottom { flex-direction: column; text-align: center; gap: 12px; }
}

/* ================================================================
   BRAND ICON  (.gf-brand-icon — charcoal circle with white "G")
   Replaces the grey favicon.png used as an inline avatar.
   Change --gf-primary in :root to retheme it everywhere.
   ================================================================ */

.gf-brand-icon {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  filter: var(--gf-logo-filter);
  flex-shrink: 0;
  display: block;
  object-fit: contain;
}

/* ================================================================
   CONTACT FORM & ONBOARDING CHAT  (home.html contact section)
   ================================================================ */

.contact-form {
  background: var(--gf-bg-card);
  border: 1px solid var(--gf-border);
  border-radius: 20px;
  padding: 40px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.04), 0 8px 32px rgba(0,0,0,0.08);
}

/* ── Form fields ── */
.form-control {
  width: 100%;
  background: var(--gf-bg-subtle);
  border: 1px solid var(--gf-border);
  border-radius: var(--gf-radius-sm);
  padding: 12px 16px;
  color: var(--gf-text);
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-control:focus {
  border-color: rgba(28,28,30,0.35);
  box-shadow: 0 0 0 3px rgba(28,28,30,0.06);
}
.form-control::placeholder { color: var(--gf-text-faint); }
textarea.form-control { resize: vertical; min-height: 120px; }

.btn-submit {
  width: 100%;
  padding: 14px;
  background: var(--gf-primary);
  color: #ffffff;
  border: none;
  border-radius: var(--gf-radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
  box-shadow: var(--gf-shadow-btn);
}
.btn-submit:hover {
  background: var(--gf-primary-hover);
  transform: translateY(-2px);
  box-shadow: var(--gf-shadow-btn-hover);
}

/* ── Onboarding chat ── */
.ob-chat-header { color: var(--gf-text); }
.ob-pct          { color: var(--gf-text-muted); }
.ob-messages::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.10); }

.ob-msg.bot {
  background: var(--gf-bg-subtle);
  border: 1px solid var(--gf-border);
  color: var(--gf-text);
}
.ob-msg.user {
  background: var(--gf-primary);
  border: 1px solid var(--gf-primary);
  color: #ffffff;
}

.ob-chip {
  background: var(--gf-bg-subtle);
  border: 1px solid var(--gf-border-strong);
  color: var(--gf-text-secondary);
}
.ob-chip:hover,
.ob-chip.selected {
  background: var(--gf-primary);
  border-color: var(--gf-primary);
  color: #ffffff;
}

.ob-input {
  background: var(--gf-bg-subtle);
  border: 1px solid var(--gf-border);
  color: var(--gf-text);
}
.ob-input:focus { border-color: rgba(28,28,30,0.35); box-shadow: 0 0 0 3px rgba(28,28,30,0.06); }
.ob-input::placeholder { color: var(--gf-text-faint); }

.ob-send {
  background: var(--gf-primary);
  color: #ffffff;
  border: none;
}
.ob-send:hover { background: var(--gf-primary-hover); }

.ob-progress { background: rgba(0,0,0,0.06); }
.ob-country-code {
  background: var(--gf-bg-subtle);
  border: 1px solid var(--gf-border);
  color: var(--gf-text);
}
.ob-typing span { background: rgba(0,0,0,0.25); }

/* ================================================================
   FLOATING CHAT POPUP  (home.html bottom-right chat widget)
   ================================================================ */

.chat-popup-overlay { background: rgba(0,0,0,0.25); }
.chat-popup {
  background: var(--gf-bg-card);
  border: 1px solid var(--gf-border);
  box-shadow: 0 8px 40px rgba(0,0,0,0.14), 0 2px 8px rgba(0,0,0,0.06);
}
.chat-popup-header       { border-bottom: 1px solid var(--gf-border); }
.chat-popup-header-title { color: var(--gf-text); }
.chat-popup-header-pct   { color: var(--gf-text-muted); }
.chat-popup-close        { color: rgba(0,0,0,0.30); }
.chat-popup-close:hover  { color: var(--gf-text); }
.chat-popup-progress     { background: rgba(0,0,0,0.06); }
.chat-popup-messages::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.10); }
.chat-popup-input        { border-top: 1px solid var(--gf-border); }