/* ═══════════════════════════════════════════════════════════════
   NANO Trading — Tier System Shared Styles
   Matches existing site design: glassmorphism, dark theme, Inter font.
   ═══════════════════════════════════════════════════════════════ */

:root {
  /* Background */
  --nano-bg: #05050a;
  --nano-bg-card: rgba(255, 255, 255, 0.03);
  --nano-bg-card-hover: rgba(255, 255, 255, 0.06);
  --nano-border-card: rgba(255, 255, 255, 0.06);
  --nano-glass: rgba(13, 13, 20, 0.85);

  /* Text */
  --nano-text: #f1f5f9;
  --nano-text-secondary: #94a3b8;
  --nano-text-muted: #475569;

  /* Tier colors */
  --nano-cyan: #1dcced;
  --nano-purple: #7c3aed;
  --nano-violet: #a78bfa;
  --nano-gold: #f59e0b;
  --nano-gold-dark: #d97706;
  --nano-green: #10b981;
  --nano-red: #ef4444;
  --nano-indigo: #818cf8;

  /* Tier accents */
  --tier-core-bg: rgba(29, 204, 237, 0.1);
  --tier-core-border: rgba(29, 204, 237, 0.3);
  --tier-pro-bg: rgba(124, 58, 237, 0.1);
  --tier-pro-border: rgba(124, 58, 237, 0.3);
  --tier-elite-bg: rgba(245, 158, 11, 0.1);
  --tier-elite-border: rgba(245, 158, 11, 0.3);

  /* Layout */
  --nano-radius: 16px;
  --nano-radius-btn: 12px;
  --nano-radius-pill: 50px;
  --nano-font: 'Satoshi', system-ui, -apple-system, sans-serif;
}

/* ─── Base Reset for Tier Pages ────────────────────────────────── */

.tier-page {
  margin: 0;
  padding: 0;
  background: var(--nano-bg);
  color: var(--nano-text);
  font-family: var(--nano-font);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.tier-page *, .tier-page *::before, .tier-page *::after {
  box-sizing: border-box;
}

/* ─── Section Padding ──────────────────────────────────────────── */

.tier-section-pad {
  padding: 80px 24px;
  max-width: 1200px;
  margin: 0 auto;
}

/* ─── Section Header ──────────────────────────────────────────── */

.tier-section-pill {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--nano-cyan);
  background: rgba(29, 204, 237, 0.08);
  border: 1px solid rgba(29, 204, 237, 0.2);
  border-radius: var(--nano-radius-pill);
  padding: 6px 18px;
  margin-bottom: 16px;
}

.tier-section-heading {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--nano-text);
  margin: 0 0 12px;
  letter-spacing: -0.5px;
}

.tier-section-subtitle {
  font-size: 1.1rem;
  color: var(--nano-text-secondary);
  max-width: 640px;
  margin: 0 0 48px;
  line-height: 1.7;
}

/* ─── Glow Divider ─────────────────────────────────────────────── */

.tier-glow-line {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(29, 204, 237, 0.3), transparent);
  border: none;
  margin: 0;
}

/* ─── Glass Card ───────────────────────────────────────────────── */

.tier-card {
  background: var(--nano-bg-card);
  border: 1px solid var(--nano-border-card);
  border-radius: var(--nano-radius);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 32px;
  transition: background 0.3s, border-color 0.3s, transform 0.3s;
}

.tier-card:hover {
  background: var(--nano-bg-card-hover);
}

/* ─── Tier Cards (Progression Section) ─────────────────────────── */

.tier-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 64px;
}

.tier-card--core { border-top: 3px solid var(--nano-cyan); }
.tier-card--pro { border-top: 3px solid var(--nano-violet); }
.tier-card--elite { border-top: 3px solid var(--nano-gold); }

.tier-card--core .tier-card__icon { color: var(--nano-cyan); }
.tier-card--pro .tier-card__icon { color: var(--nano-violet); }
.tier-card--elite .tier-card__icon { color: var(--nano-gold); }

.tier-card__icon {
  font-size: 2rem;
  margin-bottom: 12px;
  display: block;
}

.tier-card__name {
  font-size: 1.4rem;
  font-weight: 700;
  margin: 0 0 4px;
}

.tier-card__threshold {
  font-size: 0.85rem;
  color: var(--nano-text-secondary);
  margin-bottom: 12px;
}

.tier-card__desc {
  font-size: 0.95rem;
  color: var(--nano-text-secondary);
  margin-bottom: 20px;
  line-height: 1.6;
}

.tier-card__unlocks {
  list-style: none;
  padding: 0;
  margin: 0;
}

.tier-card__unlocks li {
  font-size: 0.9rem;
  color: var(--nano-text-secondary);
  padding: 6px 0;
  border-top: 1px solid var(--nano-border-card);
  display: flex;
  align-items: center;
  gap: 8px;
}

.tier-card__unlocks li::before {
  content: '→';
  color: var(--nano-text-muted);
  font-size: 0.8rem;
}

/* ─── Points Table ─────────────────────────────────────────────── */

.points-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.points-card {
  background: var(--nano-bg-card);
  border: 1px solid var(--nano-border-card);
  border-radius: var(--nano-radius);
  padding: 24px;
  text-align: center;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.points-card__size {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--nano-text);
  margin-bottom: 4px;
}

.points-card__label {
  font-size: 0.85rem;
  color: var(--nano-text-muted);
  margin-bottom: 12px;
}

.points-card__points {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--nano-cyan);
}

/* ─── Progress Bar ─────────────────────────────────────────────── */

.progress-bar-wrapper {
  margin: 32px 0 16px;
}

.progress-bar-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.progress-bar-track {
  width: 100%;
  height: 12px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 6px;
  overflow: hidden;
  position: relative;
}

.progress-bar-fill {
  height: 100%;
  border-radius: 6px;
  width: 0;
  transition: width 1.2s cubic-bezier(0.22, 1, 0.36, 1);
}

.progress-bar-fill--core-to-pro {
  background: linear-gradient(90deg, var(--nano-cyan), var(--nano-violet));
}

.progress-bar-fill--pro-to-elite {
  background: linear-gradient(90deg, var(--nano-violet), var(--nano-gold));
}

.progress-bar-fill--max {
  background: linear-gradient(90deg, var(--nano-gold), var(--nano-gold-dark));
}

.progress-bar-fill--to-core {
  background: linear-gradient(90deg, var(--nano-text-muted), var(--nano-cyan));
}

.progress-bar-status {
  font-size: 0.9rem;
  color: var(--nano-text-secondary);
  margin-top: 8px;
}

/* ─── Tier Badge / Pill ────────────────────────────────────────── */

.tier-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: var(--nano-radius-pill);
  letter-spacing: 0.5px;
}

.tier-badge--core {
  color: var(--nano-cyan);
  background: var(--tier-core-bg);
  border: 1px solid var(--tier-core-border);
}

.tier-badge--pro {
  color: var(--nano-violet);
  background: var(--tier-pro-bg);
  border: 1px solid var(--tier-pro-border);
}

.tier-badge--elite {
  color: var(--nano-gold);
  background: var(--tier-elite-bg);
  border: 1px solid var(--tier-elite-border);
}

.tier-badge--none {
  color: var(--nano-text-muted);
  background: rgba(71, 85, 105, 0.1);
  border: 1px solid rgba(71, 85, 105, 0.3);
}

/* ─── Status Badge ─────────────────────────────────────────────── */

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--nano-radius-pill);
}

.status-badge--pending {
  color: var(--nano-gold);
  background: rgba(245, 158, 11, 0.1);
}

.status-badge--approved {
  color: var(--nano-green);
  background: rgba(16, 185, 129, 0.1);
}

.status-badge--rejected {
  color: var(--nano-red);
  background: rgba(239, 68, 68, 0.1);
}

/* ─── Tier Unlock Cards (Dashboard) ────────────────────────────── */

.tier-unlock-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 32px 0;
}

.tier-unlock-card {
  background: var(--nano-bg-card);
  border: 1px solid var(--nano-border-card);
  border-radius: var(--nano-radius);
  padding: 24px;
  text-align: center;
  position: relative;
  cursor: pointer;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
  text-decoration: none;
  display: block;
}

.tier-unlock-card:hover {
  transform: translateY(-2px);
}

.tier-unlock-card--unlocked {
  border-color: var(--nano-border-card);
}

.tier-unlock-card--current {
  box-shadow: 0 0 20px rgba(29, 204, 237, 0.15);
}

.tier-unlock-card--current.tier-unlock-card--core { border-color: var(--tier-core-border); box-shadow: 0 0 20px rgba(29, 204, 237, 0.15); }
.tier-unlock-card--current.tier-unlock-card--pro { border-color: var(--tier-pro-border); box-shadow: 0 0 20px rgba(124, 58, 237, 0.15); }
.tier-unlock-card--current.tier-unlock-card--elite { border-color: var(--tier-elite-border); box-shadow: 0 0 20px rgba(245, 158, 11, 0.15); }

.tier-unlock-card--locked {
  opacity: 0.5;
  cursor: default;
}

.tier-unlock-card__icon {
  font-size: 2rem;
  margin-bottom: 8px;
  display: block;
}

.tier-unlock-card__name {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.tier-unlock-card__status {
  font-size: 0.8rem;
  font-weight: 600;
}

/* ─── Submission Table ─────────────────────────────────────────── */

.submissions-table-wrap {
  overflow-x: auto;
  border-radius: var(--nano-radius);
  border: 1px solid var(--nano-border-card);
}

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

.submissions-table th {
  text-align: left;
  padding: 14px 16px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--nano-text-muted);
  border-bottom: 1px solid var(--nano-border-card);
  background: var(--nano-bg-card);
}

.submissions-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--nano-border-card);
  color: var(--nano-text-secondary);
}

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

.submissions-table tr:hover td {
  background: var(--nano-bg-card-hover);
}

/* ─── Dashboard Layout ─────────────────────────────────────────── */

.dash-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 32px;
  align-items: start;
}

.dash-main { min-width: 0; }

.dash-sidebar .tier-card {
  margin-bottom: 20px;
}

.dash-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 40px;
}

.dash-topbar__greeting {
  font-size: 1.5rem;
  font-weight: 700;
}

.dash-topbar__meta {
  display: flex;
  align-items: center;
  gap: 16px;
}

.dash-points-display {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--nano-cyan);
}

.dash-points-label {
  font-size: 0.8rem;
  color: var(--nano-text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ─── Stat Cards ───────────────────────────────────────────────── */

.stat-cards-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--nano-bg-card);
  border: 1px solid var(--nano-border-card);
  border-radius: var(--nano-radius);
  padding: 20px;
  text-align: center;
}

.stat-card__value {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--nano-text);
  margin-bottom: 4px;
}

.stat-card__label {
  font-size: 0.75rem;
  color: var(--nano-text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ─── Locked / Unlocked Overlays ───────────────────────────────── */

.locked-overlay {
  position: relative;
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.locked-overlay__bg {
  position: absolute;
  inset: 0;
  filter: blur(8px);
  opacity: 0.15;
  pointer-events: none;
  overflow: hidden;
}

.locked-overlay__content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 540px;
  padding: 48px 32px;
}

.locked-overlay__icon {
  font-size: 3rem;
  margin-bottom: 16px;
  display: block;
}

.locked-overlay__title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.locked-overlay__desc {
  font-size: 1rem;
  color: var(--nano-text-secondary);
  margin-bottom: 24px;
  line-height: 1.7;
}

/* ─── Site Navbar (matches nano-trading.com) ───────────────────── */

.nano-navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(5, 5, 10, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding: 0 24px;
  transition: all 0.3s;
}

.nano-navbar__inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nano-navbar__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.nano-navbar__logo img {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.nano-navbar__logo span {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--nano-text);
  letter-spacing: 0.5px;
}

.nano-navbar__links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nano-navbar__links a {
  color: #e2e8f0;
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nano-navbar__links a:hover,
.nano-navbar__links a.active {
  color: var(--nano-cyan);
}

.nano-navbar__cta {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ─── Site Footer (matches nano-trading.com) ───────────────────── */

.nano-footer {
  background: rgba(5, 5, 10, 0.95);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 60px 24px 40px;
}

.nano-footer__grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.nano-footer__logo {
  width: 120px;
  margin-bottom: 20px;
}

.nano-footer__desc {
  color: var(--nano-text-secondary);
  font-size: 0.875rem;
  line-height: 1.6;
  margin: 0 0 16px;
}

.nano-footer h3 {
  color: #fff;
  margin: 0 0 16px;
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.nano-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.nano-footer ul li a {
  color: var(--nano-text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.2s;
}

.nano-footer ul li a:hover {
  color: var(--nano-cyan);
}

.nano-footer__bottom {
  max-width: 1200px;
  margin: 0 auto;
}

.nano-footer__disclaimer {
  color: #64748b;
  font-size: 0.75rem;
  margin-top: 40px;
  text-align: center;
  line-height: 1.6;
}

.nano-footer__disclaimer strong {
  color: #94a3b8;
}

.nano-footer__copy {
  color: #64748b;
  font-size: 0.75rem;
  margin-top: 16px;
  text-align: center;
}

/* ─── Buttons (matches nano-trading.com) ───────────────────────── */

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, #1dcced, #1496b5);
  color: #000;
  font-weight: 700;
  font-size: 0.875rem;
  padding: 12px 28px;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 0 20px rgba(29, 204, 237, 0.3);
  text-decoration: none;
  font-family: var(--nano-font);
}

.btn-primary:hover {
  box-shadow: 0 0 35px rgba(29, 204, 237, 0.5);
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  font-weight: 600;
  font-size: 0.875rem;
  padding: 12px 28px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  font-family: var(--nano-font);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-1px);
}

/* ─── CTA Button (tier-specific) ───────────────────────────────── */

.tier-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 0.875rem;
  font-weight: 700;
  border: none;
  border-radius: var(--nano-radius-btn);
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s;
  font-family: var(--nano-font);
}

.tier-btn:hover {
  transform: translateY(-1px);
}

.tier-btn--cyan {
  background: linear-gradient(135deg, #1dcced, #1496b5);
  color: #000;
  box-shadow: 0 0 20px rgba(29, 204, 237, 0.3);
}

.tier-btn--cyan:hover {
  box-shadow: 0 0 35px rgba(29, 204, 237, 0.5);
}

.tier-btn--purple {
  background: linear-gradient(135deg, var(--nano-violet), var(--nano-purple));
  color: #fff;
  box-shadow: 0 0 20px rgba(124, 58, 237, 0.3);
}

.tier-btn--purple:hover {
  box-shadow: 0 0 35px rgba(124, 58, 237, 0.5);
}

.tier-btn--gold {
  background: linear-gradient(135deg, var(--nano-gold), var(--nano-gold-dark));
  color: #000;
  box-shadow: 0 0 20px rgba(245, 158, 11, 0.3);
}

.tier-btn--gold:hover {
  box-shadow: 0 0 35px rgba(245, 158, 11, 0.5);
}

.tier-btn--outline {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #fff;
}

.tier-btn--outline:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* ─── Admin Layout ─────────────────────────────────────────────── */

.admin-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 100vh;
}

.admin-sidebar {
  background: rgba(255, 255, 255, 0.02);
  border-right: 1px solid var(--nano-border-card);
  padding: 24px 0;
  position: sticky;
  top: 0;
  height: 100vh;
}

.admin-sidebar__logo {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--nano-text);
  padding: 0 24px 24px;
  border-bottom: 1px solid var(--nano-border-card);
  margin-bottom: 16px;
}

.admin-nav {
  list-style: none;
  padding: 0;
  margin: 0;
}

.admin-nav li a {
  display: block;
  padding: 12px 24px;
  color: var(--nano-text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: background 0.2s, color 0.2s;
}

.admin-nav li a:hover,
.admin-nav li a.active {
  background: var(--nano-bg-card-hover);
  color: var(--nano-text);
}

.admin-nav li a.active {
  border-left: 3px solid var(--nano-cyan);
}

.admin-main {
  padding: 32px;
}

.admin-header {
  margin-bottom: 32px;
}

.admin-header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 8px;
}

/* ─── Admin Detail Panel ───────────────────────────────────────── */

.admin-detail {
  background: var(--nano-bg-card);
  border: 1px solid var(--nano-border-card);
  border-radius: var(--nano-radius);
  padding: 32px;
  margin-top: 24px;
}

.admin-detail__row {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--nano-border-card);
  font-size: 0.9rem;
}

.admin-detail__label {
  color: var(--nano-text-muted);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.5px;
}

.admin-detail__value {
  color: var(--nano-text-secondary);
}

.admin-actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--nano-border-card);
}

.admin-btn {
  padding: 10px 24px;
  font-size: 0.85rem;
  font-weight: 700;
  border: none;
  border-radius: var(--nano-radius-btn);
  cursor: pointer;
  transition: transform 0.2s, opacity 0.2s;
  color: #fff;
}

.admin-btn:hover { transform: translateY(-1px); }

.admin-btn--approve { background: var(--nano-green); }
.admin-btn--reject { background: var(--nano-red); }
.admin-btn--info { background: var(--nano-gold); }

/* ─── Form Elements (Admin) ────────────────────────────────────── */

.tier-input,
.tier-select,
.tier-textarea {
  width: 100%;
  padding: 10px 14px;
  font-size: 0.9rem;
  font-family: var(--nano-font);
  color: var(--nano-text);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--nano-border-card);
  border-radius: 8px;
  outline: none;
  transition: border-color 0.2s;
}

.tier-input:focus,
.tier-select:focus,
.tier-textarea:focus {
  border-color: var(--nano-cyan);
}

.tier-textarea {
  min-height: 80px;
  resize: vertical;
}

.tier-select option {
  background: #1a1a2e;
  color: var(--nano-text);
}

/* ─── Proof Placeholder ────────────────────────────────────────── */

.proof-placeholder {
  width: 100%;
  height: 240px;
  background: rgba(255, 255, 255, 0.02);
  border: 2px dashed var(--nano-border-card);
  border-radius: var(--nano-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--nano-text-muted);
  font-size: 0.9rem;
}

/* ─── Download Card (Pro Area) ─────────────────────────────────── */

.download-card {
  background: var(--nano-bg-card);
  border: 1px solid var(--tier-pro-border);
  border-radius: var(--nano-radius);
  padding: 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.download-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--nano-violet), var(--nano-purple));
}

.download-card__title {
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.download-card__version {
  font-size: 0.85rem;
  color: var(--nano-text-muted);
  margin-bottom: 24px;
}

/* ─── Checklist (Pro Area) ─────────────────────────────────────── */

.setup-checklist {
  list-style: none;
  padding: 0;
  margin: 0;
}

.setup-checklist li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--nano-border-card);
  font-size: 0.95rem;
  color: var(--nano-text-secondary);
}

.setup-checklist input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--nano-violet);
  cursor: pointer;
}

/* ─── Steps (numbered) ─────────────────────────────────────────── */

.tier-steps {
  display: grid;
  gap: 20px;
  counter-reset: step-counter;
}

.tier-step {
  background: var(--nano-bg-card);
  border: 1px solid var(--nano-border-card);
  border-radius: var(--nano-radius);
  padding: 24px 24px 24px 72px;
  position: relative;
  counter-increment: step-counter;
}

.tier-step::before {
  content: counter(step-counter);
  position: absolute;
  left: 24px;
  top: 24px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--nano-bg-card-hover);
  border: 1px solid var(--nano-border-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--nano-text-secondary);
}

.tier-step__title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.tier-step__desc {
  font-size: 0.9rem;
  color: var(--nano-text-secondary);
  line-height: 1.6;
}

/* ─── Quick Actions ────────────────────────────────────────────── */

.quick-actions {
  list-style: none;
  padding: 0;
  margin: 0;
}

.quick-actions li a {
  display: block;
  padding: 10px 0;
  color: var(--nano-cyan);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  border-bottom: 1px solid var(--nano-border-card);
  transition: color 0.2s;
}

.quick-actions li a:hover {
  color: var(--nano-text);
}

/* ─── Points Breakdown (Sidebar) ───────────────────────────────── */

.points-breakdown {
  margin: 0;
  padding: 0;
  list-style: none;
}

.points-breakdown li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  font-size: 0.9rem;
  color: var(--nano-text-secondary);
  border-bottom: 1px solid var(--nano-border-card);
}

.points-breakdown li:last-child {
  border-bottom: none;
}

.points-breakdown__bar {
  flex: 1;
  height: 4px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 2px;
  margin: 0 12px;
  overflow: hidden;
}

.points-breakdown__fill {
  height: 100%;
  background: var(--nano-cyan);
  border-radius: 2px;
}

/* ─── Mentorship Form (Elite) ──────────────────────────────────── */

.mentorship-form {
  display: grid;
  gap: 20px;
  max-width: 600px;
}

.mentorship-form label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--nano-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}

/* ─── Gold Glow (Elite) ───────────────────────────────────────── */

.gold-glow {
  box-shadow: 0 0 40px rgba(245, 158, 11, 0.1);
}

/* ─── Empty State ──────────────────────────────────────────────── */

.empty-state {
  text-align: center;
  padding: 64px 24px;
  color: var(--nano-text-muted);
}

.empty-state__icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
  display: block;
}

.empty-state__text {
  font-size: 1rem;
  margin-bottom: 24px;
}

/* ─── Fade Up Animation ────────────────────────────────────────── */

@keyframes tierFadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.tier-fade-up {
  animation: tierFadeUp 0.6s ease forwards;
  opacity: 0;
}

.tier-fade-up:nth-child(2) { animation-delay: 0.1s; }
.tier-fade-up:nth-child(3) { animation-delay: 0.2s; }
.tier-fade-up:nth-child(4) { animation-delay: 0.3s; }

/* ─── Progress Callout Banner ──────────────────────────────────── */

.progress-callout {
  background: var(--nano-bg-card);
  border: 1px solid var(--nano-border-card);
  border-radius: var(--nano-radius);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}

.progress-callout__text {
  font-size: 0.95rem;
  color: var(--nano-text-secondary);
}

.progress-callout__text strong {
  color: var(--nano-text);
}

/* ─── Milestone Badge ──────────────────────────────────────────── */

.milestone-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--nano-radius-pill);
  background: rgba(16, 185, 129, 0.1);
  color: var(--nano-green);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

/* ═══ Responsive ═══════════════════════════════════════════════ */

@media (max-width: 900px) {
  .tier-cards-grid,
  .points-grid,
  .tier-unlock-grid {
    grid-template-columns: 1fr;
  }

  .dash-layout {
    grid-template-columns: 1fr;
  }

  .dash-sidebar {
    order: -1;
  }

  .stat-cards-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .admin-layout {
    grid-template-columns: 1fr;
  }

  .admin-sidebar {
    position: static;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--nano-border-card);
  }

  .admin-nav {
    display: flex;
    overflow-x: auto;
    gap: 0;
  }

  .admin-nav li a {
    white-space: nowrap;
    padding: 12px 16px;
  }

  .admin-nav li a.active {
    border-left: none;
    border-bottom: 3px solid var(--nano-cyan);
  }

  .tier-section-heading {
    font-size: 2rem;
  }

  .admin-detail__row {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}

@media (max-width: 700px) {
  .tier-section-pad {
    padding: 60px 16px;
  }

  .tier-section-heading {
    font-size: 1.6rem;
  }

  .dash-topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .stat-cards-row {
    grid-template-columns: 1fr;
  }

  .submissions-table {
    font-size: 0.8rem;
  }

  .submissions-table th,
  .submissions-table td {
    padding: 10px 12px;
  }

  .admin-actions {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .tier-section-pad {
    padding: 48px 12px;
  }

  .tier-card {
    padding: 24px 20px;
  }

  .locked-overlay__title {
    font-size: 1.5rem;
  }

  .download-card {
    padding: 28px 20px;
  }
}

/* ─── Navbar Responsive ────────────────────────────────────────── */

.nano-navbar__spacer {
  height: 64px;
}

.nano-navbar__mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--nano-text);
  font-size: 1.4rem;
  cursor: pointer;
  padding: 8px;
}

@media (max-width: 900px) {
  .nano-navbar__links {
    display: none;
  }

  .nano-navbar__cta {
    display: none;
  }

  .nano-navbar__mobile-toggle {
    display: block;
  }

  .nano-footer__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}