:root {
  --bg: #0a0a0f;
  --bg-alt: #111118;
  --fg: #e8e4dd;
  --fg-muted: #8a8680;
  --accent: #d4a03c;
  --accent-dim: rgba(212, 160, 60, 0.15);
  --accent-glow: rgba(212, 160, 60, 0.08);
  --border: rgba(255, 255, 255, 0.06);
  --font-display: 'Syne', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.accent { color: var(--accent); }

.section-label {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 2rem;
}

.section-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

/* ---- HERO ---- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 6rem 2rem 4rem;
  overflow: hidden;
}

.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
  position: relative;
  z-index: 2;
}

.hero-tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  color: var(--accent);
  border: 1px solid var(--accent-dim);
  padding: 0.5rem 1.2rem;
  border-radius: 100px;
  margin-bottom: 2.5rem;
  background: var(--accent-dim);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 10vw, 7.5rem);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -0.03em;
  margin-bottom: 2rem;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 560px;
  line-height: 1.8;
  margin-bottom: 3.5rem;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  flex-wrap: wrap;
}

.stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

.hero-gradient {
  position: absolute;
  top: -20%;
  right: -10%;
  width: 700px;
  height: 700px;
  background: radial-gradient(ellipse at center, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
}

/* ---- OPPORTUNITY ---- */
.opportunity {
  padding: 8rem 0;
  border-top: 1px solid var(--border);
}

.opp-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.opp-text p {
  color: var(--fg-muted);
  margin-bottom: 1.2rem;
  font-size: 1.05rem;
}

.opp-cards {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.opp-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem 1.8rem;
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.card-icon {
  font-size: 1.2rem;
  color: var(--accent);
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-dim);
  border-radius: 8px;
}

.opp-card h3 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent);
  margin-right: 0.5rem;
  white-space: nowrap;
}

.opp-card p {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.4;
}

/* ---- STACK ---- */
.stack {
  padding: 8rem 0;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.stack-intro {
  color: var(--fg-muted);
  font-size: 1.1rem;
  max-width: 600px;
  margin-bottom: 3.5rem;
}

.stack-layers {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.layer {
  position: relative;
  padding: 1.8rem 2rem;
  background: var(--bg);
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 0.5rem;
}

.layer-bar {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: var(--bar-width);
  background: linear-gradient(90deg, var(--accent-dim), transparent);
  pointer-events: none;
}

.layer-content {
  position: relative;
  z-index: 2;
}

.layer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.layer-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
}

.layer-pct {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--accent);
  font-size: 0.95rem;
}

.layer p {
  color: var(--fg-muted);
  font-size: 0.92rem;
  line-height: 1.6;
}

/* ---- APPROACH ---- */
.approach {
  padding: 8rem 0;
}

.principles {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem 4rem;
  margin-top: 3rem;
}

.principle-num {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.8rem;
  letter-spacing: 0.05em;
}

.principle h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
}

.principle p {
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ---- CLOSING ---- */
.closing {
  padding: 8rem 0;
  border-top: 1px solid var(--border);
  text-align: center;
}

.closing-content {
  max-width: 720px;
  margin: 0 auto;
}

.closing h2 {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  margin-bottom: 1.5rem;
}

.closing-text {
  color: var(--fg-muted);
  font-size: 1.1rem;
  line-height: 1.8;
}

/* ---- FOOTER ---- */
.site-footer {
  padding: 3rem 2rem;
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.4rem;
}

.footer-tagline {
  font-size: 0.85rem;
  color: var(--fg-muted);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  .hero { padding: 4rem 1.5rem 3rem; min-height: auto; }
  .hero h1 { font-size: clamp(2.8rem, 12vw, 4.5rem); }
  .hero-stats { gap: 1.5rem; }
  .stat-divider { display: none; }
  .stat-num { font-size: 1.5rem; }

  .opp-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .opp-card { flex-direction: column; align-items: flex-start; text-align: left; gap: 0.8rem; }
  .opp-card h3 { font-size: 1.3rem; }

  .principles { grid-template-columns: 1fr; gap: 2rem; }

  .section-inner { padding: 0 1.5rem; }
  .opportunity, .stack, .approach, .closing { padding: 5rem 0; }

  .layer { padding: 1.4rem 1.2rem; }
  .layer-header { flex-direction: column; align-items: flex-start; gap: 0.2rem; }

  .signup-row { flex-direction: column; gap: 0.8rem; }
  .signup-input, .signup-btn { width: 100%; border-radius: 8px; }
}

/* ---- SIGNUP FORM ---- */
.signup-form {
  margin-bottom: 3.5rem;
  max-width: 520px;
}

.signup-row {
  display: flex;
  gap: 0;
  align-items: stretch;
}

.signup-input {
  flex: 1;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-right: none;
  border-radius: 8px 0 0 8px;
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 400;
  padding: 0.85rem 1.2rem;
  outline: none;
  transition: border-color 0.2s;
}

.signup-input::placeholder { color: var(--fg-muted); }

.signup-input:focus {
  border-color: var(--accent);
}

.signup-btn {
  background: var(--accent);
  color: #0a0a0f;
  border: none;
  border-radius: 0 8px 8px 0;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  padding: 0.85rem 1.6rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
  transition: opacity 0.2s;
}

.signup-btn:hover { opacity: 0.88; }
.signup-btn:disabled { opacity: 0.6; cursor: not-allowed; }

.signup-meta {
  font-size: 0.8rem;
  color: var(--fg-muted);
  margin-top: 0.7rem;
}

.signup-status {
  margin-top: 0.7rem;
  font-size: 0.9rem;
  padding: 0.5rem 0;
}

.signup-error { color: #e05c5c; }
.signup-already { color: var(--accent); }

.signup-success {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--fg);
  padding: 0.75rem 0;
}

/* ---- ADMIN DASHBOARD ---- */
.admin-page {
  min-height: 100vh;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  padding: 3rem 2rem;
}

.admin-header {
  max-width: 1100px;
  margin: 0 auto 3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  padding-bottom: 1.5rem;
}

.admin-brand {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.02em;
  text-decoration: none;
}

.admin-body {
  max-width: 1100px;
  margin: 0 auto;
}

.admin-title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.4rem;
}

.admin-sub {
  color: var(--fg-muted);
  font-size: 0.9rem;
  margin-bottom: 2.5rem;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.2rem;
  margin-bottom: 3rem;
}

.metric-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem 1.8rem;
}

.metric-label {
  font-size: 0.75rem;
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--fg-muted);
  margin-bottom: 0.6rem;
}

.metric-value {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}

.metric-delta {
  font-size: 0.8rem;
  color: var(--fg-muted);
  margin-top: 0.4rem;
}

.metric-delta.positive { color: #5cb85c; }
.metric-delta.negative { color: #e05c5c; }

.admin-section {
  margin-bottom: 3rem;
}

.admin-section-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1.2rem;
  color: var(--fg);
}

.chart-bar-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.chart-bar-row {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-size: 0.85rem;
}

.chart-bar-label {
  width: 80px;
  color: var(--fg-muted);
  text-align: right;
  flex-shrink: 0;
}

.chart-bar-track {
  flex: 1;
  background: var(--bg-alt);
  border-radius: 4px;
  height: 18px;
  overflow: hidden;
}

.chart-bar-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 4px;
  opacity: 0.75;
  min-width: 2px;
  transition: width 0.3s ease;
}

.chart-bar-count {
  width: 32px;
  color: var(--fg-muted);
  text-align: right;
  flex-shrink: 0;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.data-table th {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--fg-muted);
  text-align: left;
  padding: 0.6rem 0.8rem;
  border-bottom: 1px solid var(--border);
}

.data-table td {
  padding: 0.7rem 0.8rem;
  border-bottom: 1px solid var(--border);
  color: var(--fg);
}

.data-table tr:last-child td { border-bottom: none; }

.data-table a {
  color: var(--accent);
  text-decoration: none;
}

.badge {
  display: inline-block;
  font-size: 0.72rem;
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.2rem 0.6rem;
  border-radius: 100px;
  background: var(--accent-dim);
  color: var(--accent);
}

.badge.published { background: rgba(92,184,92,0.15); color: #5cb85c; }
.badge.draft { background: var(--accent-dim); color: var(--accent); }

.source-tag {
  display: inline-block;
  font-size: 0.72rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.15rem 0.5rem;
  color: var(--fg-muted);
}

/* ---- NEWSLETTER ISSUE VIEW ---- */
.issue-page {
  min-height: 100vh;
  background: var(--bg);
  padding: 3rem 2rem;
}

.issue-container {
  max-width: 680px;
  margin: 0 auto;
}

.issue-back {
  font-size: 0.85rem;
  color: var(--fg-muted);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 2rem;
  transition: color 0.2s;
}

.issue-back:hover { color: var(--accent); }