/* ============================================================
   DigitizeX AI — Design System
   Premium dark AI-SaaS theme (Stitch-inspired) on Bootstrap 5
   ============================================================ */

:root {
  --dx-ink: #07070f;
  --dx-bg: #0a0a16;
  --dx-surface: #111122;
  --dx-surface-2: #16162a;
  --dx-surface-3: #1c1c33;
  --dx-border: rgba(167, 139, 250, 0.16);
  --dx-border-soft: rgba(255, 255, 255, 0.07);
  --dx-text: #eef0ff;
  --dx-muted: #98a0c0;
  --dx-primary: #8b5cf6;
  --dx-primary-2: #6d28d9;
  --dx-accent: #d946ef;
  --dx-accent-2: #ec4899;
  --dx-cyan: #22d3ee;
  --dx-green: #34d399;
  --dx-amber: #fbbf24;
  --dx-red: #f87171;
  --dx-grad: linear-gradient(120deg, #7c3aed 0%, #8b5cf6 40%, #d946ef 100%);
  --dx-grad-soft: linear-gradient(120deg, rgba(124, 58, 237, .22), rgba(217, 70, 239, .18));
  --dx-radius: 1rem;
  --dx-radius-lg: 1.35rem;
  --dx-radius-sm: 0.65rem;
  --dx-shadow: 0 18px 50px -12px rgba(0, 0, 0, 0.55);
  --dx-font: "Sora", system-ui, -apple-system, "Segoe UI", sans-serif;
  --dx-sidebar-w: 264px;
}

/* ---------- Base ---------- */
* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--dx-font);
  background:
    radial-gradient(1100px 600px at 85% -10%, rgba(124, 58, 237, 0.16), transparent 60%),
    radial-gradient(900px 500px at -10% 20%, rgba(217, 70, 239, 0.10), transparent 60%),
    var(--dx-bg);
  color: var(--dx-text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--dx-primary); text-decoration: none; }
a:hover { color: var(--dx-accent); }

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

.bg-ink { background: var(--dx-ink); }
.bg-surface { background: var(--dx-surface); }
.bg-surface-2 { background: var(--dx-surface-2); }

.dx-gradient-text {
  background: linear-gradient(120deg, #c4b5fd 0%, #f0abfc 50%, #f9a8d4 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--dx-bg); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, #4c1d95, #701a75);
  border-radius: 999px;
  border: 2px solid var(--dx-bg);
}
::-webkit-scrollbar-thumb:hover { background: linear-gradient(180deg, #6d28d9, #a21caf); }

::selection { background: rgba(139, 92, 246, 0.45); color: #fff; }

/* ---------- Buttons ---------- */
.btn {
  border-radius: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  padding: 0.65rem 1.25rem;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-dx {
  background: var(--dx-grad);
  color: #fff;
  border: 0;
  box-shadow: 0 10px 30px -10px rgba(139, 92, 246, 0.7);
}
.btn-dx:hover, .btn-dx:focus { color: #fff; box-shadow: 0 14px 36px -10px rgba(139, 92, 246, 0.9); }

.btn-ghost {
  background: transparent;
  color: var(--dx-text);
  border: 1px solid var(--dx-border);
}
.btn-ghost:hover { color: #fff; border-color: var(--dx-primary); background: rgba(139, 92, 246, 0.08); }

.btn-outline-dx {
  background: transparent;
  color: var(--dx-primary);
  border: 1px solid var(--dx-primary);
}
.btn-outline-dx:hover { background: var(--dx-primary); color: #fff; }

.btn-danger-ghost {
  background: rgba(248, 113, 113, 0.08);
  color: var(--dx-red);
  border: 1px solid rgba(248, 113, 113, 0.3);
}
.btn-danger-ghost:hover { background: var(--dx-red); color: #fff; }

.btn-sm { padding: 0.4rem 0.9rem; font-size: 0.85rem; border-radius: 0.6rem; }
.btn-lg { padding: 0.85rem 1.6rem; font-size: 1.02rem; border-radius: 0.95rem; }

.btn-icon { display: inline-flex; align-items: center; gap: 0.5rem; }
.btn-icon i { font-size: 1.1em; }

/* ---------- Cards ---------- */
.dx-card {
  background: linear-gradient(180deg, var(--dx-surface-2), var(--dx-surface));
  border: 1px solid var(--dx-border-soft);
  border-radius: var(--dx-radius);
  box-shadow: var(--dx-shadow);
}
.dx-card-hover { transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease; }
.dx-card-hover:hover {
  transform: translateY(-5px);
  border-color: var(--dx-border);
  box-shadow: 0 24px 60px -18px rgba(0, 0, 0, 0.7);
}

/* ---------- Badges / chips ---------- */
.dx-badge {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.28rem 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.dx-badge-violet { background: rgba(139, 92, 246, 0.14); color: #c4b5fd; border: 1px solid rgba(139, 92, 246, 0.35); }
.dx-badge-green  { background: rgba(52, 211, 153, 0.12); color: #6ee7b7; border: 1px solid rgba(52, 211, 153, 0.3); }
.dx-badge-cyan   { background: rgba(34, 211, 238, 0.12); color: #67e8f9; border: 1px solid rgba(34, 211, 238, 0.3); }
.dx-badge-amber  { background: rgba(251, 191, 36, 0.12); color: #fde68a; border: 1px solid rgba(251, 191, 36, 0.3); }

/* ---------- Forms ---------- */
.form-control, .form-select {
  background-color: var(--dx-surface-3);
  border: 1px solid var(--dx-border-soft);
  color: var(--dx-text);
  border-radius: var(--dx-radius-sm);
  padding: 0.7rem 0.9rem;
}
.form-control:focus, .form-select:focus {
  background-color: var(--dx-surface-3);
  color: var(--dx-text);
  border-color: var(--dx-primary);
  box-shadow: 0 0 0 0.25rem rgba(139, 92, 246, 0.18);
}
.form-control::placeholder { color: #6b7296; }
.form-control::file-selector-button {
  background: var(--dx-surface-2);
  color: var(--dx-text);
  border: 1px solid var(--dx-border-soft);
  border-radius: 0.4rem;
}
.form-select option { background: var(--dx-surface-3); color: var(--dx-text); }
.form-check-input { background-color: var(--dx-surface-3); border-color: var(--dx-border); }
.form-check-input:checked { background-color: var(--dx-primary); border-color: var(--dx-primary); }
.form-label { font-size: 0.86rem; font-weight: 600; color: #cbd0ec; }
.form-text { color: var(--dx-muted); }

.form-floating > .form-control {
  background-color: var(--dx-surface-3);
  border: 1px solid var(--dx-border-soft);
  color: var(--dx-text);
}
.form-floating > .form-control::placeholder { color: transparent; }
.form-floating > label { color: #8b93b8; }
.form-floating > .form-control:focus ~ label,
.form-floating > .form-control:not(:placeholder-shown) ~ label { color: #a78bfa; }

.dx-range::-webkit-slider-runnable-track { background: var(--dx-surface-3); height: 6px; border-radius: 999px; }
.dx-range::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 18px; height: 18px; margin-top: -6px;
  border-radius: 50%;
  background: var(--dx-grad);
  cursor: pointer;
  border: 2px solid #fff;
}

/* ---------- Tool icon tiles ---------- */
.dx-tile {
  width: 52px; height: 52px;
  border-radius: 0.9rem;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  color: #fff;
  flex-shrink: 0;
}
.dx-tile-sm { width: 40px; height: 40px; font-size: 1.15rem; border-radius: 0.7rem; }
.tile-meta    { background: linear-gradient(135deg, #2563eb, #22d3ee); }
.tile-seo     { background: linear-gradient(135deg, #7c3aed, #d946ef); }
.tile-gbp     { background: linear-gradient(135deg, #059669, #34d399); }
.tile-web     { background: linear-gradient(135deg, #db2777, #fbbf24); }
.tile-brand   { background: var(--dx-grad); }

/* ---------- Sidebar ---------- */
.dx-sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--dx-sidebar-w);
  background: linear-gradient(180deg, #0d0d1d, #0a0a16);
  border-right: 1px solid var(--dx-border-soft);
  display: flex;
  flex-direction: column;
  z-index: 1040;
}
.dx-sidebar .brand {
  display: flex; align-items: center; gap: 0.7rem;
  padding: 1.35rem 1.35rem;
  border-bottom: 1px solid var(--dx-border-soft);
  color: var(--dx-text);
}
.dx-sidebar .brand:hover { color: var(--dx-text); }
.dx-brand-logo {
  width: 40px; height: 40px; border-radius: 0.85rem;
  background: var(--dx-grad);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.25rem; color: #fff;
  box-shadow: 0 8px 22px -8px rgba(139, 92, 246, 0.8);
}
.dx-sidebar .brand-name { font-weight: 800; letter-spacing: -0.02em; font-size: 1.05rem; }
.dx-sidebar .brand-name small { display: block; font-weight: 600; font-size: 0.65rem; color: var(--dx-muted); letter-spacing: 0.14em; text-transform: uppercase; }

.dx-nav-label {
  font-size: 0.68rem; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: #6b7296;
  padding: 1.15rem 1.5rem 0.45rem;
}

.dx-nav {
  list-style: none; margin: 0; padding: 0.25rem 0.8rem 1rem; overflow-y: auto;
}
.dx-nav .nav-item { margin: 0.2rem 0; }
.dx-nav .nav-link {
  display: flex; align-items: center; gap: 0.8rem;
  padding: 0.62rem 0.9rem;
  border-radius: 0.7rem;
  color: #a8aecf;
  font-size: 0.9rem;
  font-weight: 600;
  border: 1px solid transparent;
  transition: background .15s ease, color .15s ease, border-color .15s ease;
}
.dx-nav .nav-link i { font-size: 1.15rem; width: 22px; text-align: center; }
.dx-nav .nav-link:hover { color: #fff; background: rgba(139, 92, 246, 0.08); }
.dx-nav .nav-link.active {
  color: #fff;
  background: linear-gradient(90deg, rgba(139, 92, 246, 0.22), rgba(217, 70, 239, 0.10));
  border-color: var(--dx-border);
}
.dx-nav .nav-link .nav-pill {
  margin-left: auto;
  font-size: 0.65rem;
  background: var(--dx-grad);
  color: #fff;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-weight: 700;
}

.dx-sidebar-footer {
  padding: 1rem 1.2rem;
  border-top: 1px solid var(--dx-border-soft);
}
.dx-user-chip {
  display: flex; align-items: center; gap: 0.7rem;
  padding: 0.6rem 0.7rem;
  border-radius: 0.8rem;
  background: var(--dx-surface-2);
  border: 1px solid var(--dx-border-soft);
}
.dx-avatar {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--dx-grad);
  color: #fff; font-weight: 800; font-size: 0.85rem;
  display: flex; align-items: center; justify-content: center;
}
.dx-user-name { font-size: 0.85rem; font-weight: 700; color: var(--dx-text); }
.dx-user-plan { font-size: 0.7rem; color: var(--dx-muted); }

/* ---------- App shell ---------- */
.dx-main {
  margin-left: var(--dx-sidebar-w);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.dx-topbar {
  position: sticky; top: 0; z-index: 1030;
  display: flex; align-items: center; gap: 1rem;
  padding: 0.8rem 1.5rem;
  background: rgba(10, 10, 22, 0.82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--dx-border-soft);
}
.dx-content { padding: 1.5rem; flex: 1; }
.dx-burger { display: none; }

/* ---------- Mobile drawer overlay ---------- */
.dx-backdrop {
  position: fixed; inset: 0; z-index: 1035;
  background: rgba(4, 4, 12, 0.72);
  backdrop-filter: blur(3px);
  opacity: 0; visibility: hidden;
  transition: opacity .25s ease, visibility .25s ease;
}
.dx-backdrop.show { opacity: 1; visibility: visible; }

.dx-sidebar {
  transform: translateX(-105%);
  transition: transform .28s cubic-bezier(.4,0,.2,1);
}
.dx-sidebar.open { transform: translateX(0); }

/* ---------- Hero / landing ---------- */
.dx-hero {
  position: relative;
  overflow: hidden;
  padding: 5.5rem 0 4rem;
}
.dx-hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(139,92,246,.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(139,92,246,.07) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 100%);
}
.dx-glow {
  position: absolute;
  width: 620px; height: 620px;
  background: radial-gradient(circle, rgba(139,92,246,.35), transparent 65%);
  filter: blur(60px);
  pointer-events: none;
}
.dx-hero-title {
  font-size: clamp(2.3rem, 5.5vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.dx-feature-card { height: 100%; }

.dx-stat {
  text-align: center;
  padding: 1.6rem 1rem;
}
.dx-stat .num { font-size: 2.1rem; font-weight: 800; letter-spacing: -0.03em; }
.dx-stat .lbl { font-size: 0.82rem; color: var(--dx-muted); font-weight: 600; }

/* ---------- Generator layout ---------- */
.dx-gen { display: grid; grid-template-columns: 400px 1fr; gap: 1.4rem; align-items: start; }
.dx-panel {
  background: var(--dx-surface);
  border: 1px solid var(--dx-border-soft);
  border-radius: var(--dx-radius);
  padding: 1.3rem;
}
.dx-panel h6 { font-weight: 800; letter-spacing: -0.01em; }
.dx-output {
  background:
    radial-gradient(800px 300px at 90% -10%, rgba(139,92,246,.18), transparent 60%),
    var(--dx-surface);
  border: 1px solid var(--dx-border-soft);
  border-radius: var(--dx-radius);
  min-height: 480px;
}
.dx-empty-state {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center;
  min-height: 440px; padding: 2rem; color: var(--dx-muted);
}
.dx-empty-state .orb {
  width: 84px; height: 84px; border-radius: 50%;
  background: var(--dx-grad-soft);
  border: 1px solid var(--dx-border);
  display: flex; align-items: center; justify-content: center;
  font-size: 2.1rem; margin-bottom: 1.1rem;
  animation: ai-pulse-border 3s ease-in-out infinite;
}

.dx-result-block {
  background: var(--dx-surface-2);
  border: 1px solid var(--dx-border-soft);
  border-radius: var(--dx-radius-sm);
  padding: 1rem 1.15rem;
}
.dx-result-block .block-tag {
  font-size: 0.68rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.12em; color: #a78bfa;
}
.dx-copy-line {
  display: flex; align-items: center; justify-content: space-between; gap: 0.6rem;
  margin-bottom: 0.5rem;
}
.dx-copy-line .block-tag { margin-bottom: 0; }

/* ---------- Loading / AI simulation ---------- */
.dx-ai-loading {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  min-height: 440px; gap: 1.3rem; text-align: center; color: var(--dx-muted);
}
.dx-ai-ring {
  position: relative;
  width: 74px; height: 74px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, transparent 0 120deg, #8b5cf6 210deg, #d946ef 300deg, #22d3ee 360deg);
  animation: spin 1s linear infinite;
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 8px), #000 calc(100% - 7px));
  mask: radial-gradient(farthest-side, transparent calc(100% - 8px), #000 calc(100% - 7px));
}
.dx-ai-status { font-size: 0.9rem; font-weight: 600; color: #c4b5fd; min-height: 1.4rem; }
.dx-ai-steps { list-style: none; padding: 0; margin: 0; font-size: 0.82rem; }
.dx-ai-steps li { padding: 0.18rem 0; color: #6b7296; }
.dx-ai-steps li.done { color: var(--dx-green); }
.dx-ai-steps li.done::before { content: "✓  "; }

/* ---------- Animations ---------- */
@keyframes spin { to { transform: rotate(360deg); } }

@keyframes ai-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}
.ai-pulse { animation: ai-pulse 1.8s ease-in-out infinite; }

@keyframes ai-pulse-border {
  0%, 100% { box-shadow: 0 0 0 0 rgba(139, 92, 246, 0.35); }
  50% { box-shadow: 0 0 0 14px rgba(139, 92, 246, 0); }
}
.ai-pulse-border { animation: ai-pulse-border 2.6s ease-in-out infinite; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}
.dx-fade-up { animation: fadeUp .5s ease both; }

@keyframes typingDot { 0%, 60%, 100% { opacity: .2; transform: translateY(0); } 30% { opacity: 1; transform: translateY(-3px); } }
.typing-dot { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--dx-primary); animation: typingDot 1.2s infinite; }
.typing-dot:nth-child(2) { animation-delay: .15s; }
.typing-dot:nth-child(3) { animation-delay: .3s; }

@keyframes shimmer { 0% { background-position: -500px 0; } 100% { background-position: 500px 0; } }
.dx-skeleton {
  background: linear-gradient(90deg, var(--dx-surface-2) 25%, var(--dx-surface-3) 50%, var(--dx-surface-2) 75%);
  background-size: 1000px 100%;
  animation: shimmer 1.6s infinite linear;
  border-radius: 0.5rem;
}

/* ---------- Auth pages ---------- */
.dx-auth {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
  position: relative;
  overflow: hidden;
}
.dx-auth-card {
  width: 100%; max-width: 460px;
  padding: 2.2rem;
  background: rgba(17, 17, 34, 0.85);
  backdrop-filter: blur(12px);
  border: 1px solid var(--dx-border);
  border-radius: var(--dx-radius-lg);
  box-shadow: var(--dx-shadow);
  position: relative; z-index: 1;
}
.dx-auth-side {
  width: 100%; max-width: 460px;
}
.dx-auth-side .mini-feature {
  display: flex; gap: 0.8rem; align-items: flex-start;
  background: rgba(139, 92, 246, 0.06);
  border: 1px solid var(--dx-border-soft);
  border-radius: 0.9rem;
  padding: 0.85rem 1rem;
}

/* ---------- Marquee ---------- */
.dx-marquee { overflow: hidden; position: relative; }
.dx-marquee-track {
  display: flex; gap: 1rem; width: max-content;
  animation: marquee 28s linear infinite;
}
.dx-marquee:hover .dx-marquee-track { animation-play-state: paused; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

.dx-logo-chip {
  display: inline-flex; align-items: center; gap: 0.6rem;
  padding: 0.55rem 1.2rem;
  border: 1px solid var(--dx-border-soft);
  border-radius: 999px;
  background: var(--dx-surface);
  color: #b9bfe0;
  font-weight: 700; font-size: 0.95rem;
  white-space: nowrap;
}

/* ---------- Misc ---------- */
.section-title { letter-spacing: -0.02em; font-weight: 800; }
.section-eyebrow {
  display: inline-block;
  font-size: 0.72rem; font-weight: 800;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: #a78bfa;
  background: rgba(139, 92, 246, 0.12);
  border: 1px solid var(--dx-border);
  padding: 0.3rem 0.85rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}
.divider { border-color: var(--dx-border-soft) !important; opacity: 1; }

.dx-table thead th { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--dx-muted); }
.dx-table td, .dx-table th { border-color: var(--dx-border-soft) !important; background: transparent !important; color: var(--dx-text); }

.progress-bar { background: var(--dx-grad); }
.dx-progress-bg { background: var(--dx-surface-3); }

.toast-dx {
  background: var(--dx-surface-2);
  border: 1px solid var(--dx-border);
  color: var(--dx-text);
  border-radius: 0.8rem;
}
.toast-dx .toast-header { background: transparent; color: var(--dx-text); border-color: var(--dx-border-soft); }

.metric-card .delta-up { color: var(--dx-green); }
.metric-card .delta-down { color: var(--dx-red); }

/* ---------- Footer ---------- */
.dx-footer {
  border-top: 1px solid var(--dx-border-soft);
  padding: 2.5rem 0 1.5rem;
  margin-top: auto;
}

/* ---------- Responsive ---------- */
@media (max-width: 1199.98px) {
  .dx-gen { grid-template-columns: 340px 1fr; }
}

@media (max-width: 991.98px) {
  .dx-sidebar { width: min(300px, 86vw); }
  .dx-burger { display: inline-flex; }
  .dx-main { margin-left: 0; }
}

@media (max-width: 767.98px) {
  .dx-gen { grid-template-columns: 1fr; }
  .dx-content { padding: 1rem; }
  .dx-hero { padding: 3.4rem 0 2.5rem; }
  .dx-gen .dx-panel.sticky-top { position: static !important; }
}

@media (min-width: 992px) {
  .dx-sidebar { transform: translateX(0); }
}