:root {
  --bg: #ffffff;
  --bg-page: #f4f6fb;
  --bg2: #eef2f9;
  --bg3: #ffffff;
  --card: #ffffff;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;
  --java: #c2410c;
  --java-soft: #ea580c;
  --java-dim: rgba(234, 88, 12, 0.12);
  --java-dim2: rgba(234, 88, 12, 0.07);
  --green: #047857;
  --green-bg: rgba(4, 120, 87, 0.1);
  --blue: #0369a1;
  --blue-bg: rgba(3, 105, 161, 0.1);
  --amber: #b45309;
  --amber-bg: rgba(180, 83, 9, 0.12);
  --red: #dc2626;
  --text: #0f172a;
  --text-2: #475569;
  --text-3: #64748b;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 8px 30px rgba(15, 23, 42, 0.08);
  --shadow-card: 0 1px 3px rgba(15, 23, 42, 0.06), 0 16px 48px rgba(15, 23, 42, 0.06);
  --glow: 0 0 0 1px rgba(234, 88, 12, 0.15), 0 16px 48px rgba(234, 88, 12, 0.1);
  --font-display: "Sora", system-ui, -apple-system, sans-serif;
  --font-code: "Space Mono", ui-monospace, monospace;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-display);
  background: var(--bg-page);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(15, 23, 42, 0.06) 1px, transparent 0);
  background-size: 28px 28px;
  pointer-events: none;
  z-index: 0;
  opacity: 0.5;
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg2);
}
::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-3);
}

header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  padding: 0 24px;
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  height: 68px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
}

.logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--java-soft), var(--java));
  border-radius: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-code);
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  box-shadow: 0 4px 14px rgba(234, 88, 12, 0.35);
}

.logo-text {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
}

.logo-sub {
  font-size: 11px;
  color: var(--java);
  font-family: var(--font-code);
  font-weight: 600;
}

.header-search {
  flex: 1;
  max-width: 440px;
  position: relative;
}

.header-search input {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 11px 16px 11px 40px;
  color: var(--text);
  font-family: var(--font-display);
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.header-search input::placeholder {
  color: var(--text-3);
}

.header-search input:focus {
  border-color: var(--java-soft);
  box-shadow: 0 0 0 3px var(--java-dim2);
}

.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-3);
  font-size: 14px;
  pointer-events: none;
}

.header-stats {
  display: flex;
  gap: 12px;
  margin-left: auto;
}

.stat-chip {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 12px;
  color: var(--text-2);
  font-family: var(--font-code);
}

.stat-chip span {
  color: var(--java);
  font-weight: 700;
}

.reel-btn {
  background: linear-gradient(135deg, var(--java-soft), var(--java));
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: 10px 18px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  box-shadow: 0 2px 12px rgba(234, 88, 12, 0.35);
  transition: transform 0.15s, box-shadow 0.15s;
}

.reel-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(234, 88, 12, 0.4);
}

.hero {
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 45%, var(--bg-page) 100%);
  border-bottom: 1px solid var(--border);
  padding: 48px 24px 52px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--java-dim);
  border: 1px solid rgba(234, 88, 12, 0.22);
  border-radius: 999px;
  padding: 8px 18px;
  font-size: 12px;
  font-weight: 600;
  color: var(--java);
  font-family: var(--font-code);
  margin-bottom: 20px;
  letter-spacing: 0.02em;
}

.hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  line-height: 1.18;
  margin-bottom: 14px;
  color: var(--text);
  letter-spacing: -0.03em;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.hero h1 em {
  font-style: normal;
  color: var(--java);
}

.hero-lead {
  font-size: 1.05rem;
  color: var(--text-2);
  max-width: 640px;
  margin: 0 auto 10px;
  line-height: 1.65;
  font-weight: 500;
}

.hero-micro {
  font-size: 0.875rem;
  color: var(--text-3);
  max-width: 560px;
  margin: 0 auto 28px;
  line-height: 1.6;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-stat {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 22px;
  text-align: center;
  min-width: 108px;
  box-shadow: var(--shadow-sm);
}

.hero-stat-num {
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--java);
  font-family: var(--font-code);
  line-height: 1.1;
}

.hero-stat-lbl {
  font-size: 10px;
  color: var(--text-3);
  margin-top: 6px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
}

.layout {
  max-width: 1400px;
  margin: 0 auto;
  padding: 32px 24px 48px;
  display: grid;
  grid-template-columns: 272px 1fr;
  gap: 28px;
  align-items: start;
  position: relative;
  z-index: 1;
}

.sidebar {
  position: sticky;
  top: 92px;
}

.sidebar-section {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
}

.sidebar-title {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-3);
  margin-bottom: 14px;
  font-family: var(--font-code);
}

.progress-bar-wrap {
  background: var(--bg2);
  border-radius: 6px;
  height: 8px;
  margin-bottom: 10px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--java), var(--java-soft));
  border-radius: 6px;
  transition: width 0.5s ease;
}

.progress-text {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-3);
  font-family: var(--font-code);
}

.progress-text span {
  color: var(--java);
  font-weight: 600;
}

.diff-btns {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.diff-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 14px;
  border-radius: 10px;
  border: 1px solid transparent;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 500;
  background: var(--bg-page);
  color: var(--text-2);
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.diff-btn:hover {
  border-color: var(--border-strong);
  color: var(--text);
  background: var(--bg2);
}

.diff-btn.active-easy {
  background: var(--green-bg);
  border-color: rgba(4, 120, 87, 0.35);
  color: var(--green);
}

.diff-btn.active-medium {
  background: var(--amber-bg);
  border-color: rgba(180, 83, 9, 0.35);
  color: var(--amber);
}

.diff-btn.active-hard {
  background: rgba(220, 38, 38, 0.1);
  border-color: rgba(220, 38, 38, 0.3);
  color: var(--red);
}

.diff-btn.active-all {
  background: var(--java-dim);
  border-color: rgba(234, 88, 12, 0.35);
  color: var(--java);
}

.diff-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.dot-all {
  background: var(--java);
}

.dot-easy {
  background: var(--green);
}

.dot-medium {
  background: var(--amber);
}

.dot-hard {
  background: var(--red);
}

.diff-count {
  font-family: var(--font-code);
  font-size: 11px;
  background: rgba(15, 23, 42, 0.06);
  color: var(--text-2);
  padding: 3px 8px;
  border-radius: 999px;
  font-weight: 600;
}

.cat-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: 380px;
  overflow-y: auto;
}

.cat-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 10px;
  border-radius: 8px;
  border: none;
  background: transparent;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 13px;
  color: var(--text-2);
  text-align: left;
  transition: background 0.12s;
}

.cat-btn:hover {
  background: var(--bg-page);
  color: var(--text);
}

.cat-btn.active {
  background: var(--java-dim);
  color: var(--java);
  font-weight: 600;
}

.cat-count {
  font-family: var(--font-code);
  font-size: 10px;
  color: var(--text-3);
  flex-shrink: 0;
}

.controls-bar {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 22px;
  flex-wrap: wrap;
}

.results-label {
  font-size: 13px;
  color: var(--text-3);
  font-family: var(--font-code);
  flex: 1;
}

.results-label b {
  color: var(--java);
  font-weight: 700;
}

.view-toggle {
  display: flex;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 4px;
  gap: 3px;
}

.view-btn {
  padding: 7px 12px;
  border-radius: 8px;
  border: none;
  background: transparent;
  cursor: pointer;
  color: var(--text-3);
  font-size: 15px;
  transition: background 0.15s, color 0.15s;
}

.view-btn.active {
  background: var(--card);
  color: var(--java);
  box-shadow: var(--shadow-sm);
}

.sort-select {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 14px;
  color: var(--text);
  font-family: var(--font-display);
  font-size: 13px;
  outline: none;
  cursor: pointer;
}

.questions-grid {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.questions-grid.grid-view {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 18px;
}

.q-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

.q-card:hover {
  border-color: rgba(234, 88, 12, 0.35);
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}

.q-card.open {
  border-color: rgba(234, 88, 12, 0.45);
  box-shadow: var(--glow);
}

.q-header {
  padding: 18px 22px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.q-number {
  font-family: var(--font-code);
  font-size: 11px;
  color: var(--text-3);
  min-width: 36px;
  padding-top: 3px;
  flex-shrink: 0;
  font-weight: 600;
}

.q-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.diff-tag {
  font-size: 10px;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-family: var(--font-code);
}

.diff-easy {
  background: var(--green-bg);
  color: var(--green);
}

.diff-medium {
  background: var(--amber-bg);
  color: var(--amber);
}

.diff-hard {
  background: rgba(220, 38, 38, 0.12);
  color: var(--red);
}

.cat-tag {
  font-size: 10px;
  color: var(--text-2);
  background: var(--bg-page);
  border: 1px solid var(--border);
  padding: 3px 9px;
  border-radius: 999px;
  font-family: var(--font-code);
  font-weight: 500;
}

.top100-tag {
  font-size: 10px;
  color: var(--java);
  background: var(--java-dim);
  border: 1px solid rgba(234, 88, 12, 0.25);
  padding: 3px 9px;
  border-radius: 999px;
  font-family: var(--font-code);
  font-weight: 600;
}

.q-text {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--text);
  flex: 1;
}

.q-text code {
  font-family: var(--font-code);
  font-size: 13px;
  background: var(--java-dim2);
  color: var(--java);
  padding: 2px 6px;
  border-radius: 5px;
  font-weight: 500;
}

.q-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  flex-shrink: 0;
}

.expand-btn {
  width: 32px;
  height: 32px;
  border-radius: 9px;
  background: var(--bg-page);
  border: 1px solid var(--border);
  color: var(--text-3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.q-card.open .expand-btn {
  background: var(--java);
  border-color: var(--java);
  color: #fff;
  transform: rotate(180deg);
}

.solved-btn {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 2px solid var(--border);
  background: var(--card);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: var(--text-3);
  transition: border-color 0.15s, background 0.15s;
}

.solved-btn.done {
  background: var(--green);
  border-color: var(--green);
  color: #fff;
}

.q-answer {
  display: none;
  padding: 0 22px 22px 74px;
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(248, 250, 252, 0.9) 0%, var(--card) 100%);
}

.q-card.open .q-answer {
  display: block;
  padding-top: 18px;
}

.answer-block-text {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.75;
  margin-bottom: 12px;
}

.answer-block-text code {
  font-family: var(--font-code);
  background: var(--blue-bg);
  color: var(--blue);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 12px;
}

.answer-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
}

.answer-bullets li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.65;
}

.answer-bullets li::before {
  content: "→";
  color: var(--java);
  font-weight: 700;
  flex-shrink: 0;
}

.answer-bullets li code {
  font-family: var(--font-code);
  background: var(--blue-bg);
  color: var(--blue);
  padding: 1px 5px;
  border-radius: 4px;
  font-size: 12px;
}

.code-block {
  background: #0f172a;
  border: 1px solid #1e293b;
  border-left: 4px solid var(--java-soft);
  border-radius: 10px;
  padding: 16px 18px;
  margin: 12px 0;
  overflow-x: auto;
  position: relative;
}

.code-block pre {
  font-family: var(--font-code);
  font-size: 12.5px;
  color: #e2e8f0;
  line-height: 1.65;
  white-space: pre;
}

.code-lang {
  position: absolute;
  top: 10px;
  right: 12px;
  font-family: var(--font-code);
  font-size: 10px;
  color: var(--java-soft);
  opacity: 0.85;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.load-more-wrap {
  text-align: center;
  padding: 32px 0;
}

.load-more-btn {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 28px;
  color: var(--text);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.15s, color 0.15s, box-shadow 0.15s;
}

.load-more-btn:hover {
  border-color: var(--java-soft);
  color: var(--java);
  box-shadow: var(--shadow-md);
}

.empty-state {
  text-align: center;
  padding: 64px 20px;
  color: var(--text-3);
}

.empty-state .big {
  font-size: 48px;
  margin-bottom: 14px;
}

.empty-state p {
  font-size: 15px;
  margin-bottom: 18px;
  color: var(--text-2);
}

.clear-btn {
  background: var(--java-dim);
  border: 1px solid rgba(234, 88, 12, 0.3);
  border-radius: 10px;
  padding: 10px 20px;
  color: var(--java);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}

.clear-btn:hover {
  background: rgba(234, 88, 12, 0.2);
}

.reel-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(8px);
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.reel-overlay.active {
  display: flex;
}

.reel-container {
  width: min(420px, 100%);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(15, 23, 42, 0.2);
  position: relative;
}

.reel-header {
  background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.reel-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.reel-brand-icon {
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, var(--java-soft), var(--java));
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-code);
  font-size: 15px;
  font-weight: 700;
  color: #fff;
}

.reel-brand-text {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
}

.reel-brand-handle {
  font-size: 11px;
  color: var(--java);
  font-family: var(--font-code);
  font-weight: 600;
}

.reel-progress {
  font-family: var(--font-code);
  font-size: 11px;
  color: var(--text-3);
  font-weight: 600;
}

.reel-body {
  padding: 22px;
  min-height: 300px;
}

.reel-q-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.reel-q-num {
  font-family: var(--font-code);
  font-size: 11px;
  color: var(--text-2);
  background: var(--bg-page);
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: 999px;
  font-weight: 600;
}

.reel-question {
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 22px;
  color: var(--text);
}

.reel-question code {
  font-family: var(--font-code);
  font-size: 0.95em;
  color: var(--java);
  background: var(--java-dim2);
  padding: 2px 7px;
  border-radius: 5px;
}

.reel-reveal-btn {
  width: 100%;
  background: linear-gradient(135deg, var(--java-soft), var(--java));
  border: none;
  border-radius: 12px;
  padding: 14px;
  color: #fff;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(234, 88, 12, 0.35);
}

.reel-answer {
  display: none;
}

.reel-answer.shown {
  display: block;
}

.reel-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 10px;
  background: var(--bg-page);
}

.reel-nav-btn {
  flex: 1;
  padding: 11px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}

.reel-nav-btn:hover {
  border-color: var(--java-soft);
  color: var(--java);
}

.reel-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text-2);
  cursor: pointer;
  z-index: 1;
  font-size: 16px;
  line-height: 1;
  transition: background 0.15s, color 0.15s;
}

.reel-close:hover {
  background: var(--red);
  border-color: var(--red);
  color: #fff;
}

footer {
  border-top: 1px solid var(--border);
  padding: 32px 24px;
  text-align: center;
  color: var(--text-3);
  font-size: 13px;
  font-family: var(--font-code);
  position: relative;
  z-index: 1;
  background: var(--bg-page);
}

footer a {
  color: var(--java);
  text-decoration: none;
  font-weight: 600;
}

footer a:hover {
  text-decoration: underline;
}

@keyframes fadein {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slidein {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
  }
  .sidebar {
    position: static;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
  }
  .sidebar-section {
    flex: 1;
    min-width: 220px;
  }
  .header-stats {
    display: none;
  }
  .header-search {
    max-width: 200px;
  }
}

@media (max-width: 600px) {
  .layout {
    padding: 18px 16px 36px;
  }
  header {
    padding: 0 16px;
  }
  .header-search {
    display: none;
  }
  .questions-grid.grid-view {
    grid-template-columns: 1fr;
  }
  .hero {
    padding: 36px 16px 40px;
  }
}

/* === LEAD MODAL === */
.lead-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(6px);
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadein 0.25s ease;
}

.lead-overlay.active {
  display: flex;
}

.lead-modal {
  width: min(440px, 100%);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 28px 26px 22px;
  box-shadow: var(--shadow-md);
  max-height: min(90vh, 640px);
  overflow-y: auto;
}

.lead-title {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 8px;
  color: var(--text);
  letter-spacing: -0.02em;
}

.lead-sub {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.55;
  margin-bottom: 20px;
}

.lead-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-3);
  margin-bottom: 7px;
  font-family: var(--font-code);
}

.lead-input {
  width: 100%;
  margin-bottom: 15px;
  padding: 11px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-page);
  color: var(--text);
  font-family: var(--font-display);
  font-size: 15px;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.lead-input:focus {
  border-color: var(--java-soft);
  box-shadow: 0 0 0 3px var(--java-dim2);
  background: var(--card);
}

.lead-error {
  color: var(--red);
  font-size: 13px;
  margin: -4px 0 12px;
  line-height: 1.45;
  font-weight: 500;
}

.lead-actions {
  display: flex;
  gap: 12px;
  margin-top: 8px;
  flex-wrap: wrap;
}

.lead-btn {
  flex: 1;
  min-width: 120px;
  padding: 12px 16px;
  border-radius: 10px;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--border);
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.lead-btn-skip {
  background: var(--bg-page);
  color: var(--text-2);
}

.lead-btn-skip:hover {
  border-color: var(--border-strong);
  color: var(--text);
}

.lead-btn-submit {
  background: linear-gradient(135deg, var(--java-soft), var(--java));
  border-color: transparent;
  color: #fff;
  box-shadow: 0 2px 12px rgba(234, 88, 12, 0.3);
}

.lead-btn-submit:hover:not(:disabled) {
  filter: brightness(1.05);
}

.lead-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}