/* ==========================================================================
   USTOZ IT - Shaxsiy Blog & Portfolio Veb-sayti
   Informatika va Axborot Texnologiyalari O'qituvchisi
   Muallif: Azizbek Rahimov
   Versiya: 2.0.0
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. GOOGLE FONTS & CSS CUSTOM PROPERTIES (THEMES)
   -------------------------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

:root {
  /* Ranglar palitrasi - Tungi rejim (Standart / Dark Mode) */
  --bg-primary: #0a0e27;
  --bg-secondary: #0f173b;
  --bg-tertiary: #162052;
  --bg-surface: rgba(22, 32, 82, 0.7);
  --bg-glass: rgba(15, 23, 59, 0.65);
  --bg-glass-elevated: rgba(26, 38, 96, 0.75);

  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-inverse: #0a0e27;

  /* Asosiy aksent ranglar */
  --primary: #4f46e5;
  --primary-light: #6366f1;
  --primary-dark: #3730a3;
  --primary-rgb: 79, 70, 229;

  --accent-cyan: #06b6d4;
  --accent-cyan-light: #22d3ee;
  --accent-cyan-dark: #0891b2;
  --accent-cyan-rgb: 6, 182, 212;

  --accent-purple: #8b5cf6;
  --accent-pink: #ec4899;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;

  /* Chegaralar va soyalar */
  --border-color: rgba(255, 255, 255, 0.09);
  --border-glow: rgba(79, 70, 229, 0.35);
  --border-focus: rgba(6, 182, 212, 0.6);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(79, 70, 229, 0.35);
  --shadow-cyan-glow: 0 0 30px rgba(6, 182, 212, 0.35);

  /* Navigatsiya & Vidjetlar */
  --nav-bg: rgba(10, 14, 39, 0.85);
  --nav-border: rgba(255, 255, 255, 0.08);
  --code-bg: #070a1e;
  --code-border: rgba(99, 102, 241, 0.25);

  /* Shriftlar */
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-code: 'JetBrains Mono', 'Fira Code', Consolas, monospace;

  /* O'lchamlar & Radiuslar */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 26px;
  --radius-full: 9999px;

  /* Tranzitsiyalar */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.5s cubic-bezier(0.16, 1, 0.3, 1);

  /* Konteyner kengligi */
  --container-max: 1240px;
}

/* Kunduzgi rejim (Light Mode) */
[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --bg-surface: rgba(255, 255, 255, 0.85);
  --bg-glass: rgba(255, 255, 255, 0.75);
  --bg-glass-elevated: rgba(255, 255, 255, 0.95);

  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --text-inverse: #f8fafc;

  --primary: #4f46e5;
  --primary-light: #6366f1;
  --primary-dark: #3730a3;
  --primary-rgb: 79, 70, 229;

  --accent-cyan: #0284c7;
  --accent-cyan-light: #0ea5e9;
  --accent-cyan-dark: #0369a1;
  --accent-cyan-rgb: 2, 132, 199;

  --border-color: rgba(15, 23, 42, 0.08);
  --border-glow: rgba(79, 70, 229, 0.25);
  --border-focus: rgba(2, 132, 199, 0.5);

  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.12);
  --shadow-glow: 0 0 25px rgba(79, 70, 229, 0.2);
  --shadow-cyan-glow: 0 0 25px rgba(2, 132, 199, 0.2);

  --nav-bg: rgba(255, 255, 255, 0.85);
  --nav-border: rgba(15, 23, 42, 0.08);
  --code-bg: #f1f5f9;
  --code-border: rgba(79, 70, 229, 0.2);
}

/* --------------------------------------------------------------------------
   2. RESET VA UMUMIY USLUBLAR
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  min-height: 100vh;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
  position: relative;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Maxsus tanlash (Selection) uslubi */
::selection {
  background: var(--primary);
  color: #ffffff;
}

/* Maxsus skrollbar */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--primary), var(--accent-cyan));
  border-radius: var(--radius-full);
  border: 2px solid var(--bg-primary);
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--primary-light), var(--accent-cyan-light));
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
}

input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

ul,
ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  outline: none;
}

/* Interaktiv Canvas Orqa Foni */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  opacity: 0.65;
}

/* Nurli fon dog'lari (ambient glow orbs) */
.ambient-glow {
  position: fixed;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  filter: blur(120px);
  opacity: 0.15;
  transition: opacity var(--transition-normal);
}

.ambient-glow-1 {
  top: -100px;
  right: -100px;
  background: radial-gradient(circle, var(--primary), transparent 70%);
}

.ambient-glow-2 {
  bottom: 10%;
  left: -150px;
  background: radial-gradient(circle, var(--accent-cyan), transparent 70%);
}

/* --------------------------------------------------------------------------
   3. SAHIFA YUKLANISHI (PAGE LOADER)
   -------------------------------------------------------------------------- */
.page-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 99999;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-spinner {
  width: 60px;
  height: 60px;
  border: 4px solid rgba(79, 70, 229, 0.2);
  border-top-color: var(--primary);
  border-right-color: var(--accent-cyan);
  border-radius: 50%;
  animation: spin 1s infinite linear;
  margin-bottom: 18px;
}

.loader-text {
  font-family: var(--font-code);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 1.5px;
}

/* --------------------------------------------------------------------------
   4. TIPOGRAFIYA VA MATN EFFEKTLARI
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-main);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-primary);
}

h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); font-weight: 800; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 0.95rem; }

p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

p:last-child {
  margin-bottom: 0;
}

.text-gradient {
  background: linear-gradient(135deg, #ffffff 0%, var(--primary-light) 50%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

[data-theme="light"] .text-gradient {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-cyan {
  background: linear-gradient(135deg, var(--accent-cyan-light) 0%, var(--primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.font-code {
  font-family: var(--font-code);
}

.text-muted {
  color: var(--text-muted);
}

.text-center {
  text-align: center;
}

/* --------------------------------------------------------------------------
   5. MAKET TARKIBIY QISMLARI (CONTAINER, GRID, FLEX)
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
  position: relative;
  z-index: 1;
}

.section {
  padding: 90px 0;
  position: relative;
}

.section-sm {
  padding: 50px 0;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 60px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(79, 70, 229, 0.12);
  border: 1px solid rgba(79, 70, 229, 0.3);
  border-radius: var(--radius-full);
  color: var(--accent-cyan-light);
  font-family: var(--font-code);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

[data-theme="light"] .section-tag {
  background: rgba(79, 70, 229, 0.08);
  border-color: rgba(79, 70, 229, 0.25);
  color: var(--primary);
}

.section-title {
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

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

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* --------------------------------------------------------------------------
   6. GLASSMORFIZM KARTALARI
   -------------------------------------------------------------------------- */
.glass-card {
  background: var(--bg-glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 30px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.glass-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  border-color: var(--border-glow);
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.05), transparent);
  transition: left 0.75s ease;
  pointer-events: none;
}

.glass-card:hover::before {
  left: 100%;
}

/* --------------------------------------------------------------------------
   7. TUGMALAR (BUTTONS)
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 28px;
  font-family: var(--font-main);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--transition-normal);
  text-decoration: none;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent-cyan) 100%);
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(79, 70, 229, 0.4);
  border: none;
}

.btn-primary:hover {
  box-shadow: 0 6px 25px rgba(6, 182, 212, 0.5);
  transform: translateY(-2px);
  color: #ffffff;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.07);
  backdrop-filter: blur(10px);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

[data-theme="light"] .btn-secondary {
  background: rgba(15, 23, 42, 0.04);
  border-color: rgba(15, 23, 42, 0.12);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--primary-light);
  color: var(--primary-light);
  transform: translateY(-2px);
}

[data-theme="light"] .btn-secondary:hover {
  background: rgba(79, 70, 229, 0.08);
  border-color: var(--primary);
  color: var(--primary);
}

.btn-outline {
  background: transparent;
  color: var(--accent-cyan-light);
  border: 1.5px solid var(--accent-cyan);
}

[data-theme="light"] .btn-outline {
  color: var(--primary);
  border-color: var(--primary);
}

.btn-outline:hover {
  background: var(--accent-cyan);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-cyan-glow);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.05rem;
}

.btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* --------------------------------------------------------------------------
   8. NAVIGATSIYA (HEADER & NAVBAR)
   -------------------------------------------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 80px;
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--nav-border);
  z-index: 1000;
  transition: height var(--transition-normal), background var(--transition-normal), box-shadow var(--transition-normal);
}

.header.scrolled {
  height: 70px;
  box-shadow: var(--shadow-md);
}

.nav-container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logotip */
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.5px;
  color: var(--text-primary);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 1.1rem;
  box-shadow: 0 4px 15px rgba(79, 70, 229, 0.4);
}

.logo-badge {
  color: var(--accent-cyan);
}

/* Nav havolalari */
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 6px 0;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent-cyan));
  border-radius: var(--radius-full);
  transition: width var(--transition-normal);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* Nav amallari: Mavzu tugmasi va Hamburger */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Mavzu almashtiruvchi tugma (Theme Toggle) */
.theme-toggle-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  transition: all var(--transition-normal);
}

[data-theme="light"] .theme-toggle-btn {
  background: rgba(15, 23, 42, 0.05);
  border-color: rgba(15, 23, 42, 0.1);
}

.theme-toggle-btn:hover {
  background: var(--primary);
  color: #ffffff;
  transform: rotate(25deg);
  box-shadow: var(--shadow-glow);
}

.theme-toggle-btn .sun-icon {
  display: none;
}

.theme-toggle-btn .moon-icon {
  display: block;
}

[data-theme="light"] .theme-toggle-btn .sun-icon {
  display: block;
}

[data-theme="light"] .theme-toggle-btn .moon-icon {
  display: none;
}

/* Hamburger menyu tugmasi */
.hamburger-btn {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-color);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  z-index: 1002;
  transition: background var(--transition-fast);
}

.hamburger-line {
  width: 22px;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-normal);
}

.hamburger-btn.active .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger-btn.active .hamburger-line:nth-child(2) {
  opacity: 0;
  transform: translateX(-10px);
}

.hamburger-btn.active .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobil Menyu Pardasi */
.mobile-nav-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  z-index: 1001;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.mobile-nav-drawer {
  position: fixed;
  top: 0;
  right: -320px;
  width: 300px;
  height: 100%;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border-color);
  z-index: 1002;
  padding: 90px 24px 30px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-lg);
  transition: right var(--transition-smooth);
}

.mobile-nav-drawer.open {
  right: 0;
}

.mobile-nav-overlay.open {
  display: block;
  opacity: 1;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.mobile-nav-link {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 12px 16px;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 12px;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  background: rgba(79, 70, 229, 0.15);
  color: var(--primary-light);
  transform: translateX(6px);
}

.mobile-nav-footer {
  border-top: 1px solid var(--border-color);
  padding-top: 20px;
}

/* --------------------------------------------------------------------------
   9. HERO BO'LIMI (INDEX.HTML)
   -------------------------------------------------------------------------- */
.hero-section {
  min-height: calc(100vh - 80px);
  padding-top: 130px;
  padding-bottom: 80px;
  display: flex;
  align-items: center;
  position: relative;
}

.hero-content {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 50px;
}

.hero-greeting {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  background: rgba(79, 70, 229, 0.12);
  border: 1px solid rgba(79, 70, 229, 0.3);
  border-radius: var(--radius-full);
  color: var(--accent-cyan-light);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 24px;
}

[data-theme="light"] .hero-greeting {
  color: var(--primary);
  background: rgba(79, 70, 229, 0.08);
}

.hero-title {
  margin-bottom: 20px;
  line-height: 1.2;
}

.hero-typing-wrapper {
  display: block;
  font-size: clamp(1.4rem, 3vw, 2.2rem);
  font-family: var(--font-code);
  font-weight: 700;
  color: var(--accent-cyan);
  min-height: 48px;
  margin-top: 8px;
}

.typing-cursor {
  display: inline-block;
  width: 3px;
  height: 1.1em;
  background: var(--accent-cyan);
  vertical-align: middle;
  margin-left: 4px;
  animation: blink 0.8s infinite;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
  max-width: 580px;
  line-height: 1.8;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  margin-bottom: 40px;
}

.hero-badges-list {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
}

.hero-badge-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.hero-badge-item i {
  color: var(--accent-emerald);
}

/* Hero interaktiv vizual kartasi */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-card-glow {
  position: absolute;
  width: 360px;
  height: 360px;
  background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
  filter: blur(80px);
  opacity: 0.35;
  border-radius: 50%;
  z-index: 0;
  animation: pulse 6s infinite alternate;
}

.hero-main-card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 440px;
  background: var(--bg-surface);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-xl);
  padding: 24px;
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.hero-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 16px;
  margin-bottom: 20px;
}

.code-window-dots {
  display: flex;
  gap: 8px;
}

.code-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.code-dot.red { background-color: #ef4444; }
.code-dot.yellow { background-color: #f59e0b; }
.code-dot.green { background-color: #10b981; }

.code-window-title {
  font-family: var(--font-code);
  font-size: 0.82rem;
  color: var(--text-muted);
}

.hero-code-snippet {
  font-family: var(--font-code);
  font-size: 0.88rem;
  line-height: 1.7;
  color: #e2e8f0;
  background: var(--code-bg);
  padding: 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--code-border);
  overflow-x: auto;
}

[data-theme="light"] .hero-code-snippet {
  color: #1e293b;
}

.code-keyword { color: #ec4899; font-weight: 600; }
.code-string { color: #10b981; }
.code-func { color: #38bdf8; }
.code-var { color: #fbbf24; }
.code-comment { color: #64748b; font-style: italic; }

/* Suzuvchi texnologiya nishonlari (Floating Badges) */
.floating-badge {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  background: var(--bg-glass-elevated);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  font-size: 0.88rem;
  font-weight: 600;
  z-index: 2;
  animation: float 4s ease-in-out infinite alternate;
}

.floating-badge i {
  font-size: 1.25rem;
}

.floating-badge.badge-python {
  top: -20px;
  left: -20px;
  color: #38bdf8;
  animation-delay: 0s;
}

.floating-badge.badge-web {
  bottom: -20px;
  right: -15px;
  color: #f59e0b;
  animation-delay: 1.5s;
}

.floating-badge.badge-network {
  top: 45%;
  right: -35px;
  color: #10b981;
  animation-delay: 0.8s;
}

/* --------------------------------------------------------------------------
   10. STATISTIKA BO'LIMI (STATS SECTION)
   -------------------------------------------------------------------------- */
.stats-section {
  padding: 40px 0 80px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-card {
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  position: relative;
  transition: transform var(--transition-normal), border-color var(--transition-normal);
}

.stat-card:hover {
  transform: translateY(-5px);
  border-color: var(--primary);
  box-shadow: var(--shadow-glow);
}

.stat-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  background: rgba(79, 70, 229, 0.15);
  color: var(--accent-cyan);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 6px;
  font-family: var(--font-code);
}

.stat-label {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   11. MAQOLALAR BO'LIMI VA KARTALARI (ARTICLES)
   -------------------------------------------------------------------------- */
.article-card {
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.article-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  border-color: var(--border-glow);
}

.article-image-box {
  position: relative;
  width: 100%;
  height: 220px;
  overflow: hidden;
  background-color: var(--bg-tertiary);
}

.article-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-smooth);
}

.article-card:hover .article-img {
  transform: scale(1.08);
}

.article-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 5px 14px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  backdrop-filter: blur(8px);
  z-index: 2;
}

.badge-dasturlash { background: rgba(79, 70, 229, 0.85); color: #ffffff; }
.badge-web { background: rgba(6, 182, 212, 0.85); color: #ffffff; }
.badge-tarmoq { background: rgba(16, 185, 129, 0.85); color: #ffffff; }
.badge-xavfsizlik { background: rgba(236, 72, 153, 0.85); color: #ffffff; }
.badge-boshqa { background: rgba(245, 158, 11, 0.85); color: #ffffff; }

.article-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.84rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.article-meta span {
  display: flex;
  align-items: center;
  gap: 6px;
}

.article-title {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 12px;
  color: var(--text-primary);
  transition: color var(--transition-fast);
}

.article-card:hover .article-title {
  color: var(--accent-cyan);
}

.article-excerpt {
  font-size: 0.93rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 20px;
  flex-grow: 1;
}

.article-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-color);
  padding-top: 16px;
  margin-top: auto;
}

.read-more-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent-cyan);
  transition: gap var(--transition-fast);
}

.read-more-link:hover {
  gap: 12px;
  color: var(--primary-light);
}

/* --------------------------------------------------------------------------
   12. QIDIRUV VA TOIFA FILTRI (SEARCH & FILTER CHIPS)
   -------------------------------------------------------------------------- */
.filter-search-container {
  margin-bottom: 48px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  align-items: center;
}

.search-box-wrapper {
  position: relative;
  width: 100%;
  max-width: 580px;
}

.search-icon {
  position: absolute;
  top: 50%;
  left: 20px;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 1.1rem;
  pointer-events: none;
}

.search-input {
  width: 100%;
  padding: 16px 20px 16px 52px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  color: var(--text-primary);
  font-size: 0.98rem;
  transition: all var(--transition-normal);
  outline: none;
}

.search-input:focus {
  border-color: var(--accent-cyan);
  box-shadow: var(--shadow-cyan-glow);
}

.category-filter-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.filter-chip {
  padding: 8px 22px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.filter-chip:hover {
  color: var(--text-primary);
  border-color: var(--primary-light);
}

.filter-chip.active {
  background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 4px 15px rgba(79, 70, 229, 0.35);
}

/* Pagination */
.pagination-container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  margin-top: 50px;
}

.page-btn {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.page-btn:hover,
.page-btn.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  box-shadow: var(--shadow-glow);
}

/* --------------------------------------------------------------------------
   13. KO'NIKMALAR VA PROGRESS INDIKATORLARI (SKILLS)
   -------------------------------------------------------------------------- */
.skills-container {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 36px;
}

.skill-category-card {
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.skill-category-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.3rem;
  margin-bottom: 24px;
  color: var(--text-primary);
}

.skill-category-title i {
  color: var(--accent-cyan);
}

.skill-bars-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.skill-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.skill-info {
  display: flex;
  justify-content: space-between;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.skill-progress-bar {
  width: 100%;
  height: 10px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
}

[data-theme="light"] .skill-progress-bar {
  background: rgba(15, 23, 42, 0.08);
}

.skill-progress-fill {
  height: 100%;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, var(--primary), var(--accent-cyan));
  width: 0%;
  transition: width 1.2s cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* --------------------------------------------------------------------------
   14. PORTFOLIO LOYIHALARI (PORTFOLIO.HTML)
   -------------------------------------------------------------------------- */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.portfolio-card {
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.portfolio-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  border-color: var(--border-glow);
}

.portfolio-img-box {
  position: relative;
  width: 100%;
  height: 240px;
  overflow: hidden;
  background-color: var(--bg-tertiary);
}

.portfolio-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-smooth);
}

.portfolio-card:hover .portfolio-img {
  transform: scale(1.08);
}

.portfolio-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 14, 39, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.portfolio-card:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-action-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: transform var(--transition-fast);
}

.portfolio-action-btn:hover {
  transform: scale(1.15);
}

.portfolio-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.portfolio-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.portfolio-tag {
  font-size: 0.75rem;
  font-family: var(--font-code);
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  background: rgba(79, 70, 229, 0.15);
  color: var(--accent-cyan-light);
}

[data-theme="light"] .portfolio-tag {
  color: var(--primary);
  background: rgba(79, 70, 229, 0.08);
}

.portfolio-title {
  font-size: 1.25rem;
  margin-bottom: 10px;
}

.portfolio-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   15. TA'LIM VA TAJRIBA TIMELINE (ABOUT.HTML)
   -------------------------------------------------------------------------- */
.timeline-section {
  position: relative;
  max-width: 860px;
  margin: 0 auto;
}

.timeline {
  position: relative;
  padding: 30px 0;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 3px;
  background: linear-gradient(180deg, var(--primary), var(--accent-cyan));
  transform: translateX(-50%);
  border-radius: var(--radius-full);
}

.timeline-item {
  position: relative;
  margin-bottom: 48px;
  width: 50%;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-item.left {
  left: 0;
  padding-right: 40px;
  text-align: right;
}

.timeline-item.right {
  left: 50%;
  padding-left: 40px;
  text-align: left;
}

.timeline-dot {
  position: absolute;
  top: 15px;
  width: 20px;
  height: 20px;
  background: var(--bg-primary);
  border: 4px solid var(--accent-cyan);
  border-radius: 50%;
  z-index: 2;
  box-shadow: 0 0 15px var(--accent-cyan);
}

.timeline-item.left .timeline-dot {
  right: -10px;
}

.timeline-item.right .timeline-dot {
  left: -10px;
}

.timeline-card {
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal);
}

.timeline-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary-light);
}

.timeline-date {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(79, 70, 229, 0.15);
  border-radius: var(--radius-full);
  font-family: var(--font-code);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent-cyan-light);
  margin-bottom: 10px;
}

[data-theme="light"] .timeline-date {
  color: var(--primary);
  background: rgba(79, 70, 229, 0.08);
}

.timeline-role {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.timeline-place {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.timeline-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Sertifikatlar Paneli */
.certificates-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.cert-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-align: center;
  transition: all var(--transition-normal);
}

.cert-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent-cyan);
  box-shadow: var(--shadow-cyan-glow);
}

.cert-icon {
  font-size: 2.2rem;
  color: var(--accent-cyan);
  margin-bottom: 16px;
}

/* --------------------------------------------------------------------------
   16. ALOQA SAHIFA VA FORMA USLUBLARI (CONTACT.HTML)
   -------------------------------------------------------------------------- */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 50px;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-info-card {
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  align-items: flex-start;
  gap: 20px;
  transition: transform var(--transition-normal);
}

.contact-info-card:hover {
  transform: translateX(6px);
  border-color: var(--accent-cyan);
}

.contact-info-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.contact-info-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.contact-info-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
}

.contact-info-value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-top: 4px;
  display: block;
}

/* Aloqa Formasi */
.contact-form-box {
  background: var(--bg-glass);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 36px;
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: 22px;
}

.form-label {
  display: block;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 14px 18px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.96rem;
  transition: all var(--transition-normal);
  outline: none;
}

.form-input:focus,
.form-textarea:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 15px rgba(6, 182, 212, 0.25);
  background: var(--bg-primary);
}

.form-textarea {
  resize: vertical;
  min-height: 140px;
}

.form-feedback {
  font-size: 0.82rem;
  margin-top: 6px;
  display: none;
}

.form-group.error .form-input,
.form-group.error .form-textarea {
  border-color: var(--accent-rose);
}

.form-group.error .form-feedback {
  display: block;
  color: var(--accent-rose);
}

.form-group.success .form-input,
.form-group.success .form-textarea {
  border-color: var(--accent-emerald);
}

/* --------------------------------------------------------------------------
   17. FAQ ACCORDION VA SAVOLLAR
   -------------------------------------------------------------------------- */
.faq-accordion {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item.active {
  border-color: var(--primary-light);
}

.faq-question {
  width: 100%;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
}

.faq-icon {
  font-size: 1rem;
  color: var(--accent-cyan);
  transition: transform var(--transition-normal);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 24px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 24px 20px;
}

/* --------------------------------------------------------------------------
   18. CTA BANNER (CALL TO ACTION)
   -------------------------------------------------------------------------- */
.cta-banner {
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.3) 0%, rgba(6, 182, 212, 0.2) 100%), var(--bg-secondary);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-xl);
  padding: 60px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(79, 70, 229, 0.15) 0%, transparent 60%);
  pointer-events: none;
}

.cta-title {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  margin-bottom: 16px;
}

.cta-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto 32px;
}

.cta-form {
  display: flex;
  justify-content: center;
  gap: 12px;
  max-width: 520px;
  margin: 0 auto;
}

.cta-input {
  flex-grow: 1;
  padding: 14px 22px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  color: var(--text-primary);
  font-size: 0.95rem;
  outline: none;
}

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

/* --------------------------------------------------------------------------
   19. FOOTER (SAHIFA QUYI QISMI)
   -------------------------------------------------------------------------- */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 70px 0 30px;
  position: relative;
  z-index: 1;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.9fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.94rem;
  margin-top: 16px;
  line-height: 1.7;
  max-width: 320px;
}

.footer-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text-primary);
  position: relative;
  display: inline-block;
}

.footer-title::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 28px;
  height: 2px;
  background: var(--accent-cyan);
  border-radius: 2px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link {
  font-size: 0.92rem;
  color: var(--text-muted);
  transition: color var(--transition-fast), transform var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-link:hover {
  color: var(--accent-cyan-light);
  transform: translateX(4px);
}

.footer-social-links {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
}

.social-icon-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: all var(--transition-fast);
}

.social-icon-btn:hover {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.footer-bottom-links {
  display: flex;
  gap: 24px;
}

/* --------------------------------------------------------------------------
   20. BACK TO TOP TUGMASI VA BILDIRISHNOMALAR (TOASTS)
   -------------------------------------------------------------------------- */
.back-to-top-btn {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  box-shadow: 0 4px 18px rgba(79, 70, 229, 0.45);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-normal);
  z-index: 999;
}

.back-to-top-btn.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top-btn:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 24px rgba(6, 182, 212, 0.6);
}

/* Toast Bildirishnomasi */
.toast-notification {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--bg-surface);
  backdrop-filter: blur(14px);
  border: 1px solid var(--accent-cyan);
  padding: 14px 28px;
  border-radius: var(--radius-full);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-lg), var(--shadow-cyan-glow);
  z-index: 10000;
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
}

.toast-notification.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* --------------------------------------------------------------------------
   21. SCROLL REVEAL ANIMATSIYALARI
   -------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(35px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal-fade-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-fade-left.revealed {
  opacity: 1;
  transform: translateX(0);
}

.reveal-fade-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-fade-right.revealed {
  opacity: 1;
  transform: translateX(0);
}

/* --------------------------------------------------------------------------
   22. ASOSIY KEYFRAMES ANIMATSIYALARI
   -------------------------------------------------------------------------- */
@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

@keyframes pulse {
  0% { transform: scale(0.95); opacity: 0.25; }
  100% { transform: scale(1.1); opacity: 0.45; }
}

@keyframes float {
  0% { transform: translateY(0px); }
  100% { transform: translateY(-14px); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* --------------------------------------------------------------------------
   23. MOSLASHUVCHAN DIZAYN (RESPONSIVE BREAKPOINTS)
   -------------------------------------------------------------------------- */
/* Katta planshet va noutbuklar: <= 1200px */
@media (max-width: 1200px) {
  :root {
    --container-max: 980px;
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

/* Planshetlar: <= 1024px */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }

  .hero-description {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-cta-group {
    justify-content: center;
  }

  .hero-badges-list {
    justify-content: center;
  }

  .hero-visual {
    margin-top: 20px;
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .skills-container {
    grid-template-columns: 1fr;
  }

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

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

/* Mobil qurilmalar va kichik planshetlar: <= 768px */
@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }

  .nav-links {
    display: none;
  }

  .hamburger-btn {
    display: flex;
  }

  .grid-2,
  .grid-3,
  .portfolio-grid,
  .certificates-grid {
    grid-template-columns: 1fr;
  }

  .timeline::before {
    left: 20px;
  }

  .timeline-item {
    width: 100%;
    left: 0 !important;
    padding-left: 55px !important;
    padding-right: 0 !important;
    text-align: left !important;
  }

  .timeline-item .timeline-dot {
    left: 10px !important;
    right: auto !important;
  }

  .floating-badge.badge-network {
    display: none;
  }

  .floating-badge.badge-python {
    top: -10px;
    left: -5px;
  }

  .floating-badge.badge-web {
    bottom: -15px;
    right: -5px;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .cta-form {
    flex-direction: column;
  }

  .cta-banner {
    padding: 40px 20px;
  }
}

/* Kichik mobil telefonlar: <= 480px */
@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .hero-greeting {
    font-size: 0.85rem;
  }

  .btn {
    width: 100%;
  }

  .hero-cta-group {
    flex-direction: column;
    width: 100%;
  }

  .hero-main-card {
    padding: 16px;
  }

  .hero-code-snippet {
    font-size: 0.8rem;
    padding: 12px;
  }

  .contact-form-box {
    padding: 24px 16px;
  }
}