/* ================================================================
   KALI ACADEMY – CYBER SECURITY PROFESSIONAL THEME
   Advanced UI/UX for Cybersecurity Platform
   ================================================================ */

/* ── ROOT VARIABLES OVERRIDE (GREEN ORIGINAL THEME) ── */
:root {
  --primary: #00ff41;
  --primary-dark: #00cc33;
  --primary-glow: rgba(0, 255, 65, 0.3);
  --secondary: #00ff41;
  --secondary-glow: rgba(0, 255, 65, 0.2);
  --accent: #ff0080;
  --accent-glow: rgba(255, 0, 128, 0.2);
  --warning: #ffcc00;
  --danger: #ff3333;
  --purple: #a855f7;
  --purple-glow: rgba(168, 85, 247, 0.2);
  --bg-dark: #020b14;
  --bg-card: #041628;
  --bg-card2: #061e34;
  --bg-terminal: #010e1a;
  --border: rgba(0, 255, 65, 0.2);
  --border-green: rgba(0, 255, 65, 0.2);
  --border-hover: rgba(0, 255, 65, 0.6);
  --text-primary: #e0ffe8;
  --text-secondary: #7fffb2;
  --text-muted: #4a7a5c;
  --text-white: #ffffff;
  --header-height: 70px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --glass: rgba(4, 22, 40, 0.85);
  --glow-green: 0 0 20px rgba(0,255,65,0.3), 0 0 60px rgba(0,255,65,0.1);
  --glow-cyan: 0 0 20px rgba(0,255,65,0.3), 0 0 60px rgba(0,255,65,0.1);
}

/* ── BODY & BACKGROUND ── */
body {
  background: var(--bg-dark);
  background-image: 
    radial-gradient(ellipse at 10% 20%, rgba(0,255,65,0.04) 0%, transparent 50%),
    radial-gradient(ellipse at 90% 80%, rgba(0,255,65,0.03) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(0,255,65,0.02) 0%, transparent 70%);
  background-attachment: fixed;
}

/* ── GRID BACKGROUND ── */
.grid-bg::before {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image:
    linear-gradient(rgba(0,255,65,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,255,65,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: 0;
  pointer-events: none;
}

/* ── HEADER ENHANCEMENT ── */
.site-header {
  background: rgba(2, 11, 20, 0.98);
  backdrop-filter: blur(30px);
  border-bottom: 1px solid rgba(0, 255, 65, 0.2);
  box-shadow: 0 0 40px rgba(0,255,65,0.08), inset 0 -1px 0 rgba(0,255,65,0.15);
}

.site-header::after {
  background: linear-gradient(90deg, transparent, #00ff41, #00cc33, #00ff41, transparent);
  animation: scan-line 4s linear infinite;
}

/* ── LOGO ENHANCEMENT ── */
.logo-icon {
  background: linear-gradient(135deg, #00ff41, #00cc33);
  box-shadow: var(--glow-green);
  animation: pulse-glow-enhanced 3s ease-in-out infinite;
}

@keyframes pulse-glow-enhanced {
  0%, 100% { box-shadow: 0 0 15px rgba(0,255,65,0.4), 0 0 30px rgba(0,255,65,0.2); }
  50% { box-shadow: 0 0 25px rgba(0,255,65,0.5), 0 0 50px rgba(0,255,65,0.25), 0 0 80px rgba(0,255,65,0.1); }
}

/* ── NAV LINKS ── */
.nav-link {
  color: rgba(224, 255, 232, 0.7);
  font-size: 0.85rem;
  letter-spacing: 0.3px;
  border-radius: 8px;
}

.nav-link:hover, .nav-link.active {
  color: #fff;
  background: rgba(0, 255, 65, 0.1);
  border-color: rgba(0, 255, 65, 0.3);
  box-shadow: 0 0 15px rgba(0,255,65,0.15);
}

.nav-link.active {
  background: linear-gradient(135deg, rgba(0,255,65,0.15), rgba(0,204,51,0.1));
  border-color: rgba(0,255,65,0.4);
  color: #00ff41;
}

/* ── CARDS ENHANCEMENT ── */
.cmd-card, .scenario-card, .tut-card, .tool-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.cmd-card::before, .scenario-card::before, .tut-card::before, .tool-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0,255,65,0.6), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}

.cmd-card:hover::before, .scenario-card:hover::before, .tut-card:hover::before, .tool-card:hover::before {
  opacity: 1;
}

.cmd-card:hover, .scenario-card:hover, .tut-card:hover, .tool-card:hover {
  border-color: rgba(0,255,65,0.5);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,255,65,0.12), 0 0 0 1px rgba(0,255,65,0.1);
}

/* ── BUTTONS ── */
.btn-primary {
  background: linear-gradient(135deg, rgba(0,255,65,0.15), rgba(0,204,51,0.1));
  border: 1px solid rgba(0,255,65,0.35);
  color: #00ff41;
  padding: 10px 22px;
  border-radius: 8px;
  font-family: 'Cairo', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.btn-primary:hover {
  background: linear-gradient(135deg, rgba(0,255,65,0.25), rgba(0,204,51,0.15));
  box-shadow: 0 0 20px rgba(0,255,65,0.3);
  transform: translateY(-2px);
}

.btn-danger {
  background: rgba(255, 50, 50, 0.08);
  border: 1px solid rgba(255, 50, 50, 0.3);
  color: #ff6666;
  padding: 8px 18px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.25s;
}

.btn-danger:hover {
  background: rgba(255, 50, 50, 0.18);
  box-shadow: 0 0 15px rgba(255,50,50,0.2);
}

/* ── SEARCH INPUT ── */
input[type="text"], input[type="search"], textarea, select {
  background: rgba(4, 22, 40, 0.9);
  border: 1px solid rgba(0, 255, 65, 0.2);
  border-radius: 10px;
  color: var(--text-primary);
  font-family: 'Cairo', sans-serif;
  outline: none;
  transition: all 0.3s;
}

input[type="text"]:focus, input[type="search"]:focus, textarea:focus {
  border-color: rgba(0, 255, 65, 0.5);
  box-shadow: 0 0 0 3px rgba(0,255,65,0.1), inset 0 0 20px rgba(0,255,65,0.03);
}

/* ── TERMINAL / CODE BLOCKS ── */
.terminal-block, pre, code, .cmd-block, .step-cmd-block {
  background: #010e1a;
  border: 1px solid rgba(0, 255, 65, 0.15);
  border-left: 3px solid #00ff41;
  border-radius: 8px;
  font-family: 'Share Tech Mono', 'Courier New', monospace;
}

code {
  color: #00ff41;
  font-size: 0.88rem;
}

/* ── STAT BADGES ── */
.stat-pill {
  background: rgba(4, 22, 40, 0.9);
  border: 1px solid rgba(0, 255, 65, 0.2);
  border-radius: 10px;
  padding: 12px 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: all 0.3s;
}

.stat-pill:hover {
  border-color: rgba(0, 255, 65, 0.5);
  box-shadow: 0 0 20px rgba(0,255,65,0.15);
}

.stat-pill-num {
  font-family: 'Orbitron', monospace;
  font-size: 1.1rem;
  font-weight: 700;
  color: #00ff41;
}

/* ── LEVEL BADGES ── */
.tag-beginner, .badge-easy {
  background: rgba(0, 255, 65, 0.1);
  color: #00ff41;
  border: 1px solid rgba(0, 255, 65, 0.25);
}

.tag-intermediate, .badge-medium {
  background: rgba(255, 200, 0, 0.1);
  color: #ffc800;
  border: 1px solid rgba(255, 200, 0, 0.25);
}

.tag-advanced, .badge-hard {
  background: rgba(255, 0, 128, 0.1);
  color: #ff0080;
  border: 1px solid rgba(255, 0, 128, 0.25);
}

/* ── HERO SECTIONS ── */
.steps-hero, .tut-hero, .hero-section, .page-hero {
  position: relative;
  overflow: hidden;
}

.steps-hero::after, .tut-hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0,255,65,0.6), rgba(0,204,51,0.4), transparent);
}

/* ── CYBER DECORATIONS ── */
.cyber-corner {
  position: relative;
}

.cyber-corner::before, .cyber-corner::after {
  content: '';
  position: absolute;
  width: 12px;
  height: 12px;
  border-color: #00ff41;
  border-style: solid;
}

.cyber-corner::before {
  top: -1px; right: -1px;
  border-width: 2px 2px 0 0;
}

.cyber-corner::after {
  bottom: -1px; left: -1px;
  border-width: 0 0 2px 2px;
}

/* ── MODALS ── */
.tut-modal, .steps-modal, .tool-modal {
  background: var(--bg-card);
  border: 1px solid rgba(0, 255, 65, 0.25);
  box-shadow: 0 0 80px rgba(0,255,65,0.12), 0 0 150px rgba(0,255,65,0.06);
}

.tut-modal-header, .steps-modal-hdr {
  background: linear-gradient(135deg, rgba(0,255,65,0.07), rgba(0,204,51,0.04));
  border-bottom: 1px solid rgba(0, 255, 65, 0.15);
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, #00ff41, #00cc33);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover { background: #00ff41; }

/* ── CATEGORY PILLS / TABS ── */
.tut-tab, .cmd-cat-pill, .tool-tab {
  background: rgba(4, 22, 40, 0.9);
  border: 1px solid rgba(0, 255, 65, 0.15);
  color: rgba(224, 255, 232, 0.6);
  border-radius: 50px;
  padding: 8px 18px;
  font-size: 0.83rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s;
}

.tut-tab:hover, .cmd-cat-pill:hover, .tool-tab:hover {
  border-color: rgba(0, 255, 65, 0.4);
  color: #00ff41;
  background: rgba(0, 255, 65, 0.08);
}

.tut-tab.active, .cmd-cat-pill.active, .tool-tab.active {
  background: linear-gradient(135deg, rgba(0,255,65,0.15), rgba(0,204,51,0.08));
  border-color: rgba(0, 255, 65, 0.5);
  color: #00ff41;
  box-shadow: 0 0 15px rgba(0,255,65,0.15);
}

/* ── PROGRESS BARS ── */
.progress-bar-fill {
  background: linear-gradient(90deg, #00ff41, #0cf, #00ff41);
  background-size: 200% 100%;
  animation: gradient-shift 3s ease infinite;
}

@keyframes gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ── STEP NUMBERS ── */
.step-circle {
  background: linear-gradient(135deg, rgba(0,255,65,0.15), rgba(0,204,51,0.08));
  border: 2px solid rgba(0, 255, 65, 0.4);
  color: #00ff41;
  box-shadow: 0 0 10px rgba(0,255,65,0.2);
}

.step-circle.done {
  background: linear-gradient(135deg, #00ff41, #0cf);
  color: #000;
  border-color: #00ff41;
  box-shadow: 0 0 15px rgba(0,255,65,0.4);
}

/* ── FOOTER ── */
.site-footer {
  background: rgba(2, 11, 20, 0.98);
  border-top: 1px solid rgba(0, 255, 65, 0.15);
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, #00ff41, #00cc33, #00ff41, transparent);
}

.footer-bottom {
  color: rgba(127, 255, 178, 0.4);
  font-size: 0.8rem;
  padding: 1.5rem 2rem;
  text-align: center;
}

/* ── NOTIFICATION ── */
.notification {
  position: fixed;
  bottom: 2rem;
  left: 2rem;
  background: rgba(4, 22, 40, 0.95);
  border: 1px solid rgba(0, 255, 65, 0.4);
  border-radius: 10px;
  padding: 12px 20px;
  color: #00ff41;
  font-family: 'Cairo', sans-serif;
  font-size: 0.88rem;
  backdrop-filter: blur(20px);
  box-shadow: 0 0 30px rgba(0,255,65,0.2);
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
  z-index: 9999;
}

.notification.show {
  transform: translateY(0);
  opacity: 1;
}

/* ── GLOW TEXT ── */
.glow-text {
  text-shadow: 0 0 10px currentColor, 0 0 30px currentColor;
}

.glow-green { color: #00ff41; text-shadow: 0 0 10px rgba(0,255,65,0.8); }
.glow-cyan { color: #00ff41; text-shadow: 0 0 10px rgba(0,255,65,0.8); }
.glow-pink { color: #ff0080; text-shadow: 0 0 10px rgba(255,0,128,0.8); }

/* ── CYBER BADGE ── */
.cyber-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(0,255,65,0.08);
  border: 1px solid rgba(0,255,65,0.25);
  border-radius: 20px;
  padding: 4px 14px;
  font-size: 0.78rem;
  font-weight: 600;
  color: #00ff41;
  font-family: 'Share Tech Mono', monospace;
}

/* ── ANIMATED BORDER ── */
@keyframes border-spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.animated-border {
  position: relative;
}

.animated-border::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: linear-gradient(90deg, #00ff41, #00cc33, #00ff41, #00cc33, #00ff41);
  background-size: 400% 100%;
  animation: gradient-shift 4s linear infinite;
  z-index: -1;
  opacity: 0;
  transition: opacity 0.3s;
}

.animated-border:hover::before {
  opacity: 1;
}

/* ── SEARCH COUNT BADGE ── */
.search-count-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 255, 65, 0.08);
  border: 1px solid rgba(0, 255, 65, 0.2);
  border-radius: 50px;
  padding: 6px 18px;
  font-size: 0.82rem;
  font-family: 'Share Tech Mono', monospace;
  color: #00ff41;
  letter-spacing: 0.5px;
}

/* ── LOADING SKELETON ── */
.skeleton {
  background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-card2) 50%, var(--bg-card) 75%);
  background-size: 400% 100%;
  animation: skeleton-load 1.5s ease infinite;
  border-radius: 8px;
}

@keyframes skeleton-load {
  0% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ── TOOLTIP ── */
.tooltip {
  position: relative;
}

.tooltip::after {
  content: attr(data-tip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: rgba(2, 11, 20, 0.98);
  border: 1px solid rgba(0,255,65,0.3);
  color: #00ff41;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-family: 'Cairo', sans-serif;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s;
  z-index: 1000;
}

.tooltip:hover::after { opacity: 1; }

/* ── STEP LINE CONNECTOR ── */
.exec-step:not(:last-child) .step-line {
  background: linear-gradient(180deg, rgba(0,255,65,0.3), rgba(0,255,65,0.05));
}

/* ── COPY BUTTON ── */
.copy-btn, .step-copy-btn {
  background: rgba(0,255,65,0.08);
  border: 1px solid rgba(0,255,65,0.2);
  color: #00ff41;
  border-radius: 6px;
  padding: 3px 10px;
  font-size: 0.72rem;
  cursor: pointer;
  transition: all 0.2s;
  font-family: 'Cairo', sans-serif;
}

.copy-btn:hover, .step-copy-btn:hover {
  background: rgba(0,255,65,0.2);
  box-shadow: 0 0 10px rgba(0,255,65,0.2);
}

.copy-btn.copied {
  background: rgba(0,255,65,0.15);
  border-color: rgba(0,255,65,0.4);
  color: #00ff41;
}

/* ── MOBILE MENU ── */
.mobile-menu {
  background: rgba(2, 11, 20, 0.98);
  backdrop-filter: blur(30px);
  border-bottom: 1px solid rgba(0, 255, 65, 0.2);
}

/* ── HAMBURGER ── */
.hamburger span {
  background: #00ff41;
  transition: all 0.3s;
}

/* ── WARNING / TIP BLOCKS ── */
.step-warning {
  background: rgba(255, 100, 0, 0.07);
  border: 1px solid rgba(255, 100, 0, 0.2);
  border-right: 3px solid #ff8800;
  color: #ffbb77;
}

.step-tip {
  background: rgba(0, 255, 65, 0.05);
  border: 1px solid rgba(0, 255, 65, 0.18);
  border-right: 3px solid #00ff41;
  color: #88ffaa;
}

/* ── CYBER PANEL ── */
.cyber-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  position: relative;
  overflow: hidden;
}

.cyber-panel::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, #00ff41, #00cc33, transparent);
}

/* ── SEARCH HIGHLIGHT ── */
.highlight {
  background: rgba(0, 255, 65, 0.2);
  color: #00ff41;
  border-radius: 3px;
  padding: 0 2px;
}

/* ── TYPING ANIMATION ── */
@keyframes typing {
  from { width: 0; }
  to { width: 100%; }
}

@keyframes blink-cursor {
  0%, 100% { border-color: #00ff41; }
  50% { border-color: transparent; }
}

/* ── SCAN LINE ANIMATION ── */
@keyframes scan-line-v {
  0% { top: -5%; }
  100% { top: 105%; }
}

/* ── HEXAGON BACKGROUND ── */
.hex-bg {
  background-image: 
    radial-gradient(circle at 25% 25%, rgba(0,255,65,0.02) 0%, transparent 50%),
    radial-gradient(circle at 75% 75%, rgba(0,255,65,0.03) 0%, transparent 50%);
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .nav-menu { display: none; }
  
  .site-header {
    padding: 0 1rem;
  }
  
  .stat-pill-num {
    font-size: 0.95rem;
  }
}

/* ── MATRIX CANVAS ── */
#matrix-canvas {
  opacity: 0.035;
}

/* ── HACK TEXT EFFECT ── */
.hack-text {
  font-family: 'Share Tech Mono', monospace;
  color: #00ff41;
  letter-spacing: 1px;
}

/* ── VERSION TAG ── */
.version-tag {
  font-size: 0.65rem;
  font-family: 'Share Tech Mono', monospace;
  color: rgba(0,255,65,0.5);
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* ── ANIMATED DOTS ── */
.loading-dots::after {
  content: '...';
  animation: dots 1.5s steps(4, end) infinite;
}

@keyframes dots {
  0%, 20% { content: '.'; }
  40% { content: '..'; }
  60%, 100% { content: '...'; }
}

/* ── GLITCH ON HOVER ── */
.glitch-hover:hover {
  animation: glitch 0.3s linear;
}

/* ── NUMBER COUNTER ANIMATION ── */
@keyframes count-up {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.count-animated {
  animation: count-up 0.5s ease forwards;
}

/* ── CARD GLOW ON CAT ── */
.cat-network { --card-glow: rgba(0,255,65,0.12); }
.cat-webapp { --card-glow: rgba(255,0,128,0.15); }
.cat-wireless { --card-glow: rgba(168,85,247,0.15); }
.cat-forensics { --card-glow: rgba(255,200,0,0.15); }
.cat-exploitation { --card-glow: rgba(255,50,50,0.15); }
.cat-privesc { --card-glow: rgba(255,100,0,0.15); }

/* ── CUSTOM CHECKBOX ── */
input[type="checkbox"] {
  appearance: none;
  width: 16px;
  height: 16px;
  border: 1.5px solid rgba(0,255,65,0.4);
  border-radius: 4px;
  background: transparent;
  cursor: pointer;
  position: relative;
  transition: all 0.2s;
}

input[type="checkbox"]:checked {
  background: rgba(0,255,65,0.2);
  border-color: #00ff41;
}

input[type="checkbox"]:checked::after {
  content: '✓';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #00ff41;
  font-size: 0.7rem;
}

/* ── LINK STYLES ── */
a {
  color: #00ff41;
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: #7fffb2;
}

/* ── SMALL TAG ── */
.small-tag {
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: 20px;
  font-family: 'Share Tech Mono', monospace;
  font-weight: 600;
}

/* ── STARS / RATING ── */
.difficulty-stars {
  display: flex;
  gap: 3px;
}

.star { color: rgba(255,200,0,0.4); font-size: 0.75rem; }
.star.active { color: #ffc800; }

/* ── TABLE ── */
table {
  width: 100%;
  border-collapse: collapse;
  font-family: 'Cairo', sans-serif;
}

th, td {
  padding: 10px 14px;
  border: 1px solid var(--border);
  text-align: right;
  font-size: 0.88rem;
}

th {
  background: rgba(0,255,65,0.07);
  color: #00ff41;
  font-weight: 700;
}

tr:hover td {
  background: rgba(0,255,65,0.04);
}

/* ── INDEX PAGE HERO ── */
.hero-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.hero-stat-item {
  background: rgba(7, 15, 26, 0.8);
  border: 1px solid rgba(0, 200, 255, 0.15);
  border-radius: 12px;
  padding: 1.2rem;
  text-align: center;
  transition: all 0.3s;
  cursor: default;
}

.hero-stat-item:hover {
  border-color: rgba(0, 200, 255, 0.4);
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0,200,255,0.1);
}

.hero-stat-num {
  font-family: 'Orbitron', monospace;
  font-size: 1.8rem;
  font-weight: 900;
  background: linear-gradient(135deg, #0cf, #00ff41);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 6px;
}

.hero-stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: 'Cairo', sans-serif;
}

/* ── LESSON EXECUTION LINK BUTTON ── */
.exec-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(135deg, rgba(0,255,65,0.1), rgba(0,200,255,0.08));
  border: 1px solid rgba(0,200,255,0.25);
  color: #0cf;
  padding: 7px 16px;
  border-radius: 8px;
  font-size: 0.8rem;
  font-family: 'Cairo', sans-serif;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.25s;
}

.exec-link-btn:hover {
  background: linear-gradient(135deg, rgba(0,200,255,0.2), rgba(0,255,65,0.12));
  border-color: rgba(0,200,255,0.5);
  box-shadow: 0 0 15px rgba(0,200,255,0.2);
  color: #fff;
}

/* ── ALERT BOX ── */
.alert-box {
  background: rgba(255, 100, 0, 0.08);
  border: 1px solid rgba(255, 100, 0, 0.25);
  border-radius: 10px;
  padding: 12px 16px;
  color: #ffbb77;
  font-size: 0.85rem;
  font-family: 'Cairo', sans-serif;
  line-height: 1.6;
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.info-box {
  background: rgba(0, 200, 255, 0.07);
  border: 1px solid rgba(0, 200, 255, 0.2);
  border-radius: 10px;
  padding: 12px 16px;
  color: #7ecfef;
  font-size: 0.85rem;
  font-family: 'Cairo', sans-serif;
  line-height: 1.6;
}

/* ── NO RESULTS ── */
.no-results-tut {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-muted);
}

.no-results-tut .nr-icon {
  font-size: 3rem;
  display: block;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.no-results-tut h3 {
  font-family: 'Cairo', sans-serif;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

/* ── FLOATING PARTICLES (CSS only) ── */
@keyframes float-particle {
  0%, 100% { transform: translateY(0) translateX(0); opacity: 0.4; }
  25% { transform: translateY(-20px) translateX(10px); opacity: 0.8; }
  50% { transform: translateY(-10px) translateX(-5px); opacity: 0.6; }
  75% { transform: translateY(-30px) translateX(5px); opacity: 0.3; }
}