/* Keep Growing — Area Riservata */
/* Design system: Black + White + Green signal */

:root {
  --kg-black: #000000;
  --kg-dark: #0a0a0a;
  --kg-gray-900: #111111;
  --kg-gray-800: #1a1a1a;
  --kg-gray-700: #262626;
  --kg-gray-500: #6b7280;
  --kg-gray-300: #9ca3af;
  --kg-gray-100: #e5e7eb;
  --kg-white: #ffffff;
  --kg-green: #47e27a;
  --kg-green-dark: #2dbf5e;

  --font-display: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
  --font-body: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;

  --container: 1200px;
  --radius: 4px;
  --transition: 180ms ease-out;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: var(--kg-black);
  color: var(--kg-white);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  min-height: 100vh;
  font-size: 16px;
}

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 700; }
h3 { font-size: 1.3rem; font-weight: 700; }

p { color: var(--kg-gray-100); }

a { color: var(--kg-white); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--kg-green); }

.green { color: var(--kg-green); }
.muted { color: var(--kg-gray-500); }

/* Layout */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}
.section-sm { padding: 48px 0; }

/* Dashboard sections (used inside .kg-main) */
.dash-section { margin-bottom: 48px; }
.dash-section:last-child { margin-bottom: 0; }
.dash-section .sec-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--kg-gray-800);
}
.dash-section .sec-head h2 {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0;
  letter-spacing: 0;
}
.dash-section .sec-head .sec-eyebrow {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--kg-green);
  margin-bottom: 6px;
  display: block;
}
.dash-section .sec-head p { font-size: 0.85rem; color: var(--kg-gray-500); margin-top: 6px; }

/* ========== App Shell — Sidebar + Main ========== */
.kg-shell {
  display: grid;
  grid-template-columns: 264px 1fr;
  min-height: 100vh;
  position: relative;
}

/* Overlay nascosto di default su desktop — visibile solo su mobile quando aperto */
.kg-sidebar-overlay {
  display: none;
}

/* Mobile bar nascosta di default su desktop */
.kg-mobile-bar {
  display: none;
}

.kg-sidebar {
  background: #050505;
  border-right: 1px solid var(--kg-gray-800);
  padding: 28px 18px;
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.kg-sidebar-brand {
  padding: 0 8px 28px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--kg-gray-800);
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}
.kg-sidebar-brand:hover { color: inherit; }
.kg-sidebar-brand .logo-text {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--kg-white);
}
.kg-sidebar-brand .arrow {
  color: var(--kg-green);
  font-size: 1.2rem;
  line-height: 1;
  font-weight: 800;
}

.kg-sidebar-section {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--kg-gray-500);
  padding: 16px 12px 8px;
}

.kg-side-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.kg-side-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 6px;
  color: var(--kg-gray-300);
  font-weight: 500;
  font-size: 0.9rem;
  position: relative;
  transition: all var(--transition);
  text-decoration: none;
}
.kg-side-nav a:hover {
  background: var(--kg-gray-900);
  color: var(--kg-white);
}
.kg-side-nav a.active {
  background: var(--kg-gray-900);
  color: var(--kg-white);
}
.kg-side-nav a.active::before {
  content: '';
  position: absolute;
  left: -18px;
  top: 8px; bottom: 8px;
  width: 3px;
  background: var(--kg-green);
  border-radius: 0 2px 2px 0;
}
.kg-side-nav svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  stroke: currentColor;
  stroke-width: 1.8;
  fill: none;
}

.kg-sidebar-footer {
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--kg-gray-800);
}
.kg-help-card {
  background: var(--kg-gray-900);
  border: 1px solid var(--kg-gray-800);
  border-radius: 8px;
  padding: 16px;
  font-size: 0.82rem;
}
.kg-help-card strong {
  display: block;
  color: var(--kg-white);
  font-weight: 700;
  font-size: 0.88rem;
  margin-bottom: 4px;
}
.kg-help-card p {
  color: var(--kg-gray-300);
  font-size: 0.78rem;
  line-height: 1.5;
  margin-bottom: 12px;
}
.kg-help-card a {
  color: var(--kg-green);
  font-weight: 600;
  font-size: 0.78rem;
}

/* Main area */
.kg-main {
  padding: 24px 40px 80px;
  max-width: none;
  width: 100%;
}

.kg-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0 20px;
  border-bottom: 1px solid var(--kg-gray-800);
  margin-bottom: 32px;
}
.kg-topbar .breadcrumb {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--kg-gray-500);
  margin-bottom: 4px;
}
.kg-topbar .page-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.01em;
}
.kg-topbar-actions {
  display: flex;
  gap: 10px;
  align-items: center;
}

/* Mobile burger styles (rules applied when display becomes flex in mobile media query) */
.kg-mobile-bar {
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: #050505;
  border-bottom: 1px solid var(--kg-gray-800);
  position: sticky;
  top: 0;
  z-index: 40;
}
.kg-burger {
  background: none;
  border: 1px solid var(--kg-gray-700);
  color: var(--kg-white);
  padding: 6px 10px;
  border-radius: 4px;
  font-family: inherit;
  font-size: 0.85rem;
  cursor: pointer;
}

@media (max-width: 900px) {
  .kg-shell {
    grid-template-columns: 1fr;
    display: block;
  }
  .kg-mobile-bar { display: flex; }
  .kg-sidebar {
    position: fixed;
    top: 0; left: 0;
    width: 264px;
    z-index: 100;
    transform: translateX(-100%);
    transition: transform 220ms ease-out;
  }
  .kg-sidebar.open { transform: translateX(0); }
  .kg-sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    z-index: 90;
  }
  .kg-sidebar-overlay.open { display: block; }
  .kg-main { padding: 20px 20px 60px; }
  .kg-topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .kg-topbar .kg-topbar-actions { align-self: stretch; }
}

/* Hero */
.hero {
  padding: 80px 0 40px;
}
.hero-eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--kg-green);
  margin-bottom: 20px;
}
.hero h1 {
  margin-bottom: 24px;
  max-width: 900px;
}
.hero h1 .green { color: var(--kg-green); }
.hero .lead {
  font-size: 1.15rem;
  color: var(--kg-gray-300);
  max-width: 720px;
  line-height: 1.6;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 24px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}
.btn-primary {
  background: var(--kg-green);
  color: var(--kg-black);
}
.btn-primary:hover {
  background: var(--kg-green-dark);
  color: var(--kg-black);
  transform: translateY(-1px);
}
.btn-ghost {
  background: transparent;
  color: var(--kg-white);
  border: 1px solid var(--kg-gray-700);
}
.btn-ghost:hover {
  border-color: var(--kg-white);
  color: var(--kg-white);
}

/* Cards */
.card {
  background: var(--kg-gray-900);
  border: 1px solid var(--kg-gray-800);
  border-radius: var(--radius);
  padding: 28px;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.card:hover {
  border-color: var(--kg-green);
  transform: translateY(-2px);
}
.card-eyebrow {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--kg-green);
}
.card h3 {
  font-size: 1.15rem;
  line-height: 1.3;
  font-weight: 700;
}
.card .card-meta {
  font-size: 0.8rem;
  color: var(--kg-gray-500);
  display: flex;
  gap: 12px;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--kg-gray-800);
}
.card-meta .tag {
  background: var(--kg-gray-800);
  padding: 2px 8px;
  border-radius: 2px;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Grid */
.grid {
  display: grid;
  gap: 24px;
}
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(380px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

/* Cluster grid (special) */
.cluster-card {
  position: relative;
  background: var(--kg-gray-900);
  border: 1px solid var(--kg-gray-800);
  border-radius: var(--radius);
  padding: 32px;
  transition: all var(--transition);
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  min-height: 200px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.cluster-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--kg-green);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--transition);
}
.cluster-card:hover {
  border-color: var(--kg-green);
  background: var(--kg-gray-800);
}
.cluster-card:hover::before { transform: scaleY(1); }
.cluster-card .cluster-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--kg-green);
  letter-spacing: 0.1em;
}
.cluster-card h3 {
  font-size: 1.5rem;
  margin-top: 20px;
}
.cluster-card .cluster-desc {
  color: var(--kg-gray-300);
  font-size: 0.9rem;
  margin-top: 8px;
}
.cluster-card .cluster-count {
  margin-top: 20px;
  font-size: 0.75rem;
  color: var(--kg-gray-500);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* Login */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.login-box {
  width: 100%;
  max-width: 420px;
  background: var(--kg-gray-900);
  border: 1px solid var(--kg-gray-800);
  border-radius: var(--radius);
  padding: 48px 40px;
}
.login-box h1 {
  font-size: 1.6rem;
  margin-bottom: 8px;
}
.login-box .lead {
  color: var(--kg-gray-500);
  font-size: 0.9rem;
  margin-bottom: 32px;
}
.login-box label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--kg-gray-300);
  margin-bottom: 8px;
}
.login-box input[type="password"] {
  width: 100%;
  background: var(--kg-black);
  border: 1px solid var(--kg-gray-700);
  border-radius: var(--radius);
  color: var(--kg-white);
  padding: 14px 16px;
  font-family: inherit;
  font-size: 1rem;
  margin-bottom: 24px;
  transition: border-color var(--transition);
}
.login-box input[type="password"]:focus {
  outline: none;
  border-color: var(--kg-green);
}
.login-box button {
  width: 100%;
}
.login-error {
  color: #ef4444;
  font-size: 0.85rem;
  margin-bottom: 16px;
}

/* Filters */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
}
.filter-chip {
  background: var(--kg-gray-900);
  border: 1px solid var(--kg-gray-800);
  color: var(--kg-gray-300);
  padding: 8px 16px;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 500;
  border-radius: 100px;
  cursor: pointer;
  transition: all var(--transition);
}
.filter-chip:hover {
  border-color: var(--kg-gray-500);
  color: var(--kg-white);
}
.filter-chip.active {
  background: var(--kg-green);
  border-color: var(--kg-green);
  color: var(--kg-black);
  font-weight: 600;
}
.filter-group { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.filter-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--kg-gray-500);
  margin-right: 4px;
}
.filter-row {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--kg-gray-800);
}

/* Search */
.search-input {
  background: var(--kg-gray-900);
  border: 1px solid var(--kg-gray-800);
  color: var(--kg-white);
  padding: 12px 16px;
  font-family: inherit;
  font-size: 0.95rem;
  border-radius: var(--radius);
  width: 100%;
  max-width: 360px;
}
.search-input:focus { outline: none; border-color: var(--kg-green); }

/* Video embed */
.video-wrap {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  background: var(--kg-gray-900);
  border-radius: var(--radius);
  border: 1px solid var(--kg-gray-800);
}
.video-wrap iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  border: 0;
}

/* Resource card */
.resource-card {
  background: var(--kg-gray-900);
  border: 1px solid var(--kg-gray-800);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
}
.resource-card:hover {
  border-color: var(--kg-green);
  transform: translateY(-2px);
}
.resource-card-header {
  padding: 16px;
  border-bottom: 1px solid var(--kg-gray-800);
}
.resource-meta {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 0.75rem;
}
.resource-format {
  font-size: 1.2rem;
}
.resource-cluster {
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--kg-green);
  font-size: 0.65rem;
}
.video-embed-wrapper {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  background: var(--kg-black);
}
.video-embed-wrapper iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  border: 0;
}
.resource-title {
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.4;
  padding: 16px;
  flex: 1;
}
.resource-domain {
  font-size: 0.75rem;
  color: var(--kg-gray-500);
  padding: 0 16px 16px;
  border-top: 1px solid var(--kg-gray-800);
}

/* Format badges (icone risorsa) */
.fmt-icon {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.fmt-video { color: var(--kg-green); }
.fmt-checklist { color: #fbbf24; }
.fmt-framework { color: #60a5fa; }
.fmt-gpt { color: #a78bfa; }
.fmt-tool { color: #f472b6; }

/* Footer */
.kg-footer {
  border-top: 1px solid var(--kg-gray-800);
  padding: 48px 0;
  margin-top: 80px;
  color: var(--kg-gray-500);
  font-size: 0.85rem;
}
.kg-footer .container {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

/* Empty state */
.empty {
  text-align: center;
  padding: 80px 24px;
  color: var(--kg-gray-500);
}

/* Loader */
.loader {
  text-align: center;
  padding: 60px 24px;
  color: var(--kg-gray-500);
  font-size: 0.9rem;
  letter-spacing: 0.05em;
}

/* Section header */
.sec-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 32px;
}
.sec-head .sec-eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--kg-green);
  margin-bottom: 8px;
  display: block;
}
.sec-head h2 { margin-bottom: 8px; }

/* Welcome banner (pre-video placeholder) */
.welcome-banner {
  background: linear-gradient(135deg, var(--kg-gray-900) 0%, var(--kg-gray-800) 100%);
  border: 1px solid var(--kg-gray-800);
  border-radius: var(--radius);
  padding: 40px;
  margin-bottom: 64px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
@media (max-width: 768px) {
  .welcome-banner { grid-template-columns: 1fr; padding: 24px; }
}
.welcome-banner h2 { font-size: 1.6rem; margin-bottom: 12px; }
.welcome-banner p { font-size: 0.95rem; }

/* Step list */
.step-list { list-style: none; counter-reset: step; }
.step-list li {
  counter-increment: step;
  position: relative;
  padding: 24px 24px 24px 80px;
  background: var(--kg-gray-900);
  border: 1px solid var(--kg-gray-800);
  border-radius: var(--radius);
  margin-bottom: 12px;
  transition: all var(--transition);
}
.step-list li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 24px;
  top: 24px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--kg-green);
}
.step-list li:hover { border-color: var(--kg-green); }
.step-list h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 6px;
}

/* Manifesto stripe */
.manifesto {
  text-align: center;
  padding: 80px 24px;
  border-top: 1px solid var(--kg-gray-800);
  border-bottom: 1px solid var(--kg-gray-800);
  margin: 80px 0;
}
.manifesto p {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.4rem, 3vw, 2.2rem);
  letter-spacing: -0.01em;
  color: var(--kg-white);
  max-width: 800px;
  margin: 0 auto;
}
.manifesto p .green { color: var(--kg-green); }