/* ============================================================
   Builvero Design System
   - Tokens, layout shell, and core components
   - Built on top of Bootstrap 5
   - MUST be loaded LAST after Bootstrap and legacy CSS
   ============================================================ */

:root {
  /* Electric theme tokens */
  --bg: #0b1020;
  --surface: #ffffff;
  --surface-2: #f6f8ff;
  --text: #0f172a;
  --muted: #64748b;
  --primary: #4f46e5;
  --primary-2: #06b6d4;
  --accent: #f97316;
  --success: #22c55e;
  --danger: #ef4444;
  --border: rgba(15, 23, 42, 0.1);
  --shadow: 0 18px 50px rgba(2, 6, 23, 0.12);
  --radius: 16px;
  --ring: 0 0 0 4px rgba(79, 70, 229, 0.18);
  --grad-primary: linear-gradient(
    135deg,
    #4f46e5 0%,
    #06b6d4 55%,
    #f97316 100%
  );
  --grad-hero: radial-gradient(
      1200px 600px at 20% -10%,
      rgba(79, 70, 229, 0.45),
      transparent 60%
    ),
    radial-gradient(
      900px 500px at 90% 0%,
      rgba(6, 182, 212, 0.35),
      transparent 55%
    ),
    radial-gradient(
      900px 500px at 60% 110%,
      rgba(249, 115, 22, 0.25),
      transparent 55%
    ),
    /* Keep hero background dark all the way down so CTAs and text
       never sit on a light band; the section's padding controls height. */
    linear-gradient(180deg, #0b1020 0%, #121a33 100%);

  /* Legacy aliases used elsewhere in the CSS */
  --bv-color-primary: var(--primary);
  --bv-color-primary-soft: rgba(79, 70, 229, 0.08);
  --bv-color-primary-strong: var(--primary-2);
  --bv-color-accent: var(--accent);
  --bv-color-accent-soft: rgba(6, 182, 212, 0.08);
  --bv-color-success: var(--success);
  --bv-color-danger: var(--danger);
  --bv-color-warning: #f59e0b;
  --bv-color-info: #0ea5e9;
  --bv-color-bg-page: var(--surface-2);
  --bv-color-bg-card: var(--surface);
  --bv-color-bg-subtle: #eef2ff;
  --bv-color-text-strong: #020617;
  --bv-color-text: var(--text);
  --bv-color-text-muted: var(--muted);
  --bv-color-border-subtle: rgba(148, 163, 184, 0.45);
  --bv-color-border-strong: rgba(148, 163, 184, 0.9);
  --bv-shadow-soft: 0 10px 30px rgba(15, 23, 42, 0.12);
  --bv-shadow-card: var(--shadow);
  --bv-radius-sm: 12px;
  --bv-radius-md: var(--radius);
  --bv-radius-lg: 22px;
  --bv-radius-pill: 999px;
  --bv-space-1: 0.25rem;
  --bv-space-2: 0.5rem;
  --bv-space-3: 0.75rem;
  --bv-space-4: 1rem;
  --bv-space-5: 1.5rem;
  --bv-space-6: 2rem;
  --bv-space-7: 2.5rem;
  --bv-space-8: 3rem;
  --bv-font-family-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Inter", "Helvetica Neue", Arial, sans-serif;
  --bv-font-size-xs: 0.75rem;
  --bv-font-size-sm: 0.875rem;
  --bv-font-size-md: 0.98rem;
  --bv-font-size-lg: 1.1rem;
  --bv-font-size-xl: 1.6rem;
  --bv-shell-max-width: 1200px;
}

body {
  font-family: var(--bv-font-family-sans);
  color: var(--text);
  background-color: var(--surface-2);
  line-height: 1.6;
}

/* ============================================================
   Typography Scale
   ============================================================ */

h1,
.h1 {
  font-size: 2.25rem;
  line-height: 1.2;
  font-weight: 700;
}

h2,
.h2 {
  font-size: 1.8rem;
  line-height: 1.25;
  font-weight: 700;
}

h3,
.h3 {
  font-size: 1.5rem;
  line-height: 1.3;
  font-weight: 600;
}

h4,
.h4 {
  font-size: 1.25rem;
  line-height: 1.3;
  font-weight: 600;
}

body,
p,
.bv-text-body {
  font-size: var(--bv-font-size-md);
}

.lead {
  font-size: var(--bv-font-size-lg);
  font-weight: 400;
  color: var(--bv-color-text-muted);
}

main p {
  max-width: 70ch;
}

small,
.small {
  font-size: var(--bv-font-size-sm);
}

.text-muted {
  color: var(--bv-color-text-muted) !important;
}

/* ============================================================
   Shell Layout (App)
   - Header + left rail + main feed + right rail
   ============================================================ */

.bv-app-shell {
  background-color: var(--bv-color-bg-page);
  min-height: 100vh;
}

.bv-app-shell-header {
  border-bottom: 1px solid rgba(148, 163, 184, 0.35);
  background: linear-gradient(180deg, #0b1020 0%, #111827 55%, #020617 100%);
  box-shadow: 0 12px 35px rgba(15, 23, 42, 0.55);
  z-index: 1020;
}

.bv-app-shell-header .navbar-brand span {
  font-weight: 700;
  color: #e5e7eb;
}

.bv-app-shell-header .form-control.bv-header-search {
  border-radius: 999px;
  background-color: var(--bv-color-bg-subtle);
  border-color: transparent;
  font-size: var(--bv-font-size-sm);
}

.bv-app-shell-header .form-control.bv-header-search:focus {
  border-color: var(--bv-color-primary);
  background-color: #ffffff;
  box-shadow: 0 0 0 0.15rem rgba(147, 51, 234, 0.2);
}

.bv-app-shell-body {
  max-width: var(--bv-shell-max-width);
  margin: 0 auto;
  padding-top: var(--bv-space-6);
  padding-bottom: var(--bv-space-7);
}

@media (max-width: 991.98px) {
  .bv-app-shell-body {
    padding-top: var(--bv-space-4);
    padding-bottom: var(--bv-space-5);
  }
}

/* Landing hero + navbar */

.bv-hero-gradient {
  background: var(--grad-hero);
  color: var(--text);
}

/* Tighter vertical space for landing hero only */
.bv-hero-gradient.bv-section-spacing-lg {
  padding-top: 1.75rem;
  padding-bottom: 2.25rem;
}

.landing-nav {
  background: linear-gradient(180deg, rgba(5, 8, 22, 0.98) 0%, rgba(5, 8, 22, 0.94) 100%);
  border-bottom: none;
  transition: background-color 200ms ease, box-shadow 200ms ease, border-color 200ms ease;
}

.landing-nav .navbar-brand span {
  color: #e5e7eb;
}

.landing-nav .nav-link {
  color: #cbd5f5 !important;
}

.landing-nav .nav-link:hover,
.landing-nav .nav-link:focus {
  color: #ffffff !important;
}

.landing-nav .btn-outline-primary {
  border-color: rgba(148, 163, 184, 0.55);
  color: #e5e7f5;
  background: rgba(15, 23, 42, 0.45);
}

.landing-nav .btn-outline-primary:hover {
  background: rgba(15, 23, 42, 0.9);
  border-color: #4f46e5;
}

.landing-nav .btn-primary {
  background-image: var(--grad-primary);
  border: none;
  color: #050816;
}

.landing-nav.landing-solid {
  background: #050816;
  border-bottom: 1px solid rgba(148, 163, 184, 0.4);
  box-shadow: 0 18px 50px rgba(15, 23, 42, 0.85);
}

.text-gradient {
  background-image: linear-gradient(
    120deg,
    #e5e7ff 0%,
    #a5b4fc 40%,
    #22c55e 100%
  );
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Landing feature cards: stronger visual pop */

.bv-feature-card {
  position: relative;
  border-radius: var(--radius);
  padding: var(--bv-space-4);
  background: radial-gradient(circle at top left, rgba(79, 70, 229, 0.14), transparent 55%),
    var(--surface);
  border: 1px solid rgba(148, 163, 184, 0.35);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.bv-feature-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border-top: 2px solid rgba(79, 70, 229, 0.6);
  border-image: var(--grad-primary) 1;
  opacity: 0.9;
  pointer-events: none;
}

.bv-feature-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 26px 70px rgba(15, 23, 42, 0.65);
}

.bv-shell-left-rail,
.bv-shell-right-rail {
  position: sticky;
  top: 84px;
}

.bv-shell-left-rail {
  align-self: flex-start;
}

.bv-shell-right-rail {
  align-self: flex-start;
}

@media (max-width: 991.98px) {
  .bv-shell-left-rail,
  .bv-shell-right-rail {
    position: static;
    margin-bottom: var(--bv-space-4);
  }
}

/* ============================================================
   App Navigation / Rails
   ============================================================ */

.bv-rail-card {
  background-color: var(--bv-color-bg-card);
  border-radius: var(--bv-radius-md);
  border: 1px solid var(--bv-color-border-subtle);
  box-shadow: var(--bv-shadow-soft);
  padding: var(--bv-space-4);
}

.bv-rail-title {
  font-size: var(--bv-font-size-sm);
  font-weight: 600;
  color: var(--bv-color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: var(--bv-space-3);
}

.bv-rail-link {
  display: flex;
  align-items: center;
  gap: var(--bv-space-2);
  padding: var(--bv-space-2) var(--bv-space-2);
  border-radius: var(--bv-radius-sm);
  font-size: var(--bv-font-size-sm);
  color: var(--bv-color-text-muted);
  text-decoration: none;
}

.bv-rail-link:hover {
  background-color: var(--bv-color-primary-soft);
  color: var(--bv-color-primary);
  text-decoration: none;
}

.bv-rail-link-icon {
  width: 1.5rem;
  text-align: center;
}

.bv-rail-meta {
  font-size: var(--bv-font-size-xs);
  color: var(--bv-color-text-muted);
}

/* ============================================================
   Feed / Cards
   ============================================================ */

.bv-feed {
  display: flex;
  flex-direction: column;
  gap: var(--bv-space-3);
}

.bv-feed-card {
  background-color: var(--bv-color-bg-card);
  border-radius: var(--bv-radius-md);
  border: 1px solid var(--bv-color-border-subtle);
  box-shadow: var(--bv-shadow-soft);
  padding: var(--bv-space-4);
}

.bv-feed-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--bv-space-3);
}

.bv-avatar {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: var(--bv-font-size-sm);
  color: #ffffff;
  background: linear-gradient(
    135deg,
    var(--bv-color-primary) 0%,
    var(--bv-color-primary-strong) 100%
  );
}

.bv-feed-author {
  font-weight: 600;
  font-size: var(--bv-font-size-sm);
}

.bv-feed-meta {
  font-size: var(--bv-font-size-xs);
  color: var(--bv-color-text-muted);
}

.bv-feed-body {
  font-size: var(--bv-font-size-sm);
  color: var(--bv-color-text);
  margin-bottom: var(--bv-space-3);
}

.bv-feed-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--bv-space-2);
  border-top: 1px solid var(--bv-color-border-subtle);
  padding-top: var(--bv-space-3);
}

.bv-feed-action-btn {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: var(--bv-space-1);
  font-size: var(--bv-font-size-sm);
  border-radius: var(--bv-radius-pill);
  padding: var(--bv-space-2) var(--bv-space-3);
  border: 1px solid transparent;
  background-color: transparent;
  color: var(--bv-color-text-muted);
}

.bv-feed-action-btn:hover {
  background-color: var(--bv-color-primary-soft);
  border-color: var(--bv-color-primary-soft);
  color: var(--bv-color-primary);
}

/* ============================================================
   Badges / Pills / Status
   ============================================================ */

.bv-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: var(--bv-radius-pill);
  font-size: var(--bv-font-size-xs);
  border: 1px solid var(--bv-color-border-subtle);
  background-color: var(--bv-color-bg-subtle);
}

.bv-pill-positive {
  border-color: rgba(22, 163, 74, 0.3);
  background-color: rgba(22, 163, 74, 0.08);
  color: var(--bv-color-success);
}

.bv-pill-warning {
  border-color: rgba(245, 158, 11, 0.3);
  background-color: rgba(245, 158, 11, 0.08);
  color: var(--bv-color-warning);
}

.bv-status-pill {
  font-size: var(--bv-font-size-xs);
  border-radius: var(--bv-radius-pill);
  padding: 0.2rem 0.75rem;
}

.bv-status-active {
  background-color: rgba(34, 197, 94, 0.1);
  color: #16a34a;
}

.bv-status-idea {
  background-color: rgba(59, 130, 246, 0.08);
  color: #1d4ed8;
}

.bv-status-early {
  background-color: rgba(245, 158, 11, 0.08);
  color: #b45309;
}

/* ============================================================
   Empty states / Skeletons
   ============================================================ */

.bv-empty-state {
  text-align: center;
  padding: var(--bv-space-6) var(--bv-space-4);
  color: var(--bv-color-text-muted);
}

.bv-empty-icon {
  font-size: 2.5rem;
  margin-bottom: var(--bv-space-3);
  color: var(--bv-color-primary);
}

.bv-skeleton {
  border-radius: 999px;
  background: linear-gradient(
    90deg,
    #e5e7eb 0%,
    #f3f4f6 50%,
    #e5e7eb 100%
  );
  background-size: 200% 100%;
  animation: bv-skeleton-pulse 1.4s ease-in-out infinite;
}

@keyframes bv-skeleton-pulse {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* ============================================================
   Global Bootstrap Overrides (Buttons, Forms, Nav, Cards, etc.)
   ============================================================ */

.btn {
  border-radius: var(--bv-radius-pill);
  font-weight: 600;
  padding: 0.55rem 1.4rem;
  font-size: var(--bv-font-size-sm);
}

.btn-sm {
  padding: 0.4rem 1rem;
  font-size: var(--bv-font-size-xs);
}

.btn-lg {
  padding: 0.8rem 2rem;
  font-size: var(--bv-font-size-md);
}

.btn-primary {
  background-color: var(--bv-color-primary);
  border-color: var(--bv-color-primary);
  color: #ffffff;
  box-shadow: 0 4px 10px rgba(147, 51, 234, 0.35);
}

.btn-primary:hover,
.btn-primary:focus {
  background-color: var(--bv-color-primary-strong);
  border-color: var(--bv-color-primary-strong);
  color: #ffffff;
}

.btn-outline-primary {
  border-color: var(--bv-color-primary);
  color: var(--bv-color-primary);
  background-color: transparent;
}

.btn-outline-primary:hover,
.btn-outline-primary:focus {
  background-color: var(--bv-color-primary-soft);
  color: var(--bv-color-primary-strong);
}

.btn-secondary {
  background-color: var(--bv-color-bg-subtle);
  border-color: var(--bv-color-border-subtle);
  color: var(--bv-color-text);
}

.btn-secondary:hover,
.btn-secondary:focus {
  background-color: var(--bv-color-border-subtle);
  border-color: var(--bv-color-border-strong);
}

.btn-link {
  color: var(--bv-color-primary);
  text-decoration: none;
  font-weight: 500;
}

.btn-link:hover,
.btn-link:focus {
  text-decoration: underline;
  color: var(--bv-color-primary-strong);
}

.btn:focus-visible {
  outline: 2px solid var(--bv-color-primary);
  outline-offset: 2px;
  box-shadow: 0 0 0 0.15rem rgba(147, 51, 234, 0.35);
}

.form-control,
.form-select,
textarea.form-control {
  border-radius: var(--bv-radius-sm);
  border-color: var(--bv-color-border-subtle);
  background-color: #ffffff;
  font-size: var(--bv-font-size-sm);
  padding: 0.55rem 0.9rem;
}

.form-control:focus,
.form-select:focus,
textarea.form-control:focus {
  border-color: var(--bv-color-primary);
  box-shadow: 0 0 0 0.15rem rgba(147, 51, 234, 0.18);
}

.form-label {
  font-weight: 500;
  color: var(--bv-color-text-strong);
}

.card {
  border-radius: 0.95rem;
  border: 1px solid var(--bv-color-border-subtle);
  box-shadow: var(--bv-shadow-soft);
}

.card-header {
  border-bottom-color: var(--bv-color-border-subtle);
  background-color: var(--bv-color-bg-subtle);
}

.card-body {
  padding: var(--bv-space-4);
}

.navbar {
  border-bottom: 1px solid var(--bv-color-border-subtle);
}

.navbar-light .navbar-nav .nav-link {
  font-size: var(--bv-font-size-sm);
  font-weight: 500;
  color: var(--bv-color-text-muted);
}

.navbar-light .navbar-nav .nav-link:hover,
.navbar-light .navbar-nav .nav-link:focus,
.navbar-light .navbar-nav .nav-link.active {
  color: var(--bv-color-primary);
}

.navbar-toggler {
  border-radius: var(--bv-radius-pill);
}

.badge {
  border-radius: var(--bv-radius-pill);
  font-weight: 500;
  font-size: var(--bv-font-size-xs);
}

.dropdown-menu {
  border-radius: var(--bv-radius-md);
  border-color: var(--bv-color-border-subtle);
  box-shadow: var(--bv-shadow-card);
}

.modal-content {
  border-radius: var(--bv-radius-lg);
  border: none;
  box-shadow: var(--bv-shadow-card);
}

.modal-header {
  border-bottom-color: var(--bv-color-border-subtle);
}

.modal-footer {
  border-top-color: var(--bv-color-border-subtle);
}

.toast {
  border-radius: var(--bv-radius-md);
  box-shadow: var(--bv-shadow-card);
  border: 1px solid var(--bv-color-border-subtle);
  background-color: #ffffff;
}

.toast-header {
  border-bottom-color: rgba(15, 23, 42, 0.06);
}

.toast-body {
  font-size: var(--bv-font-size-sm);
}

.bv-toast-container {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 1080;
}

/* ============================================================
   Utility helpers
   ============================================================ */

.bv-text-muted {
  color: var(--bv-color-text-muted) !important;
}

.bv-divider {
  border-top: 1px solid var(--bv-color-border-subtle);
  margin: var(--bv-space-4) 0;
}

.bv-scroll-y-soft {
  max-height: 320px;
  overflow-y: auto;
}

@media (max-width: 575.98px) {
  .bv-app-shell-header .navbar-nav .nav-link,
  .bv-app-shell-header .navbar-nav .btn {
    width: 100%;
    justify-content: flex-start;
  }
}