:root {
  --color-bg: #0C0C0E;
  --color-accent: #B026FF;
  --color-secondary: #04E2C0;
  --color-text: #F5F5F7;
  --color-muted: #d2d2d7;
  --gradient-primary: linear-gradient(135deg, #B026FF 0%, #04E2C0 100%);
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 8rem;
  --font-primary: 'Poppins', sans-serif;
  --font-secondary: 'Inter', sans-serif;
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 2rem;
  --radius-full: 50%;
  --shadow-soft: 0 8px 32px rgba(176, 38, 255, 0.15);
  --shadow-glow: 0 0 20px rgba(4, 226, 192, 0.25);
  --transition-fast: 0.2s ease;
  --transition-medium: 0.4s ease;
  --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  --container-max: 1280px;
  --container-padding: clamp(var(--space-sm), 5vw, var(--space-lg));
}

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

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

body {
  font-family: var(--font-secondary);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
  padding-top: 70px;
}

body.no-scroll {
  overflow: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

a:hover, a:focus {
  color: var(--color-secondary);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

h1 {
  font-size: clamp(2rem, 8vw, 4rem);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-md);
}

h2 {
  font-size: clamp(1.5rem, 5vw, 2.5rem);
  position: relative;
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
}

p, li {
  margin-bottom: var(--space-sm);
  color: var(--color-muted);
}

strong {
  color: var(--color-text);
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: var(--space-lg) 0;
  position: relative;
  overflow: hidden;
  min-height: 400px;
  display: flex;
  align-items: center;
}

.section .container {
  width: 100%;
}

.flex {
  display: flex;
  gap: var(--space-md);
}

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

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

.grid {
  display: grid;
  gap: var(--space-md);
}

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

.columns-3 {
  grid-template-columns: 1fr;
}

.columns-4 {
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .columns-2 {
    grid-template-columns: repeat(2, 1fr);
  }
  .columns-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  .columns-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .columns-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: var(--space-sm) 0;
  transition: all var(--transition-fast);
  background: rgba(12, 12, 14, 0.8);
  backdrop-filter: blur(10px);
}

.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: nowrap;
}

.header.scrolled {
  padding: var(--space-xs) 0;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
}

.logo-burger-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.logo {
  font-family: var(--font-primary);
  font-weight: 700;
  font-size: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: relative;
  z-index: 10;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  flex-shrink: 0;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo::before {
  content: '';
  display: inline-block;
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: 12px;
  position: relative;
  flex-shrink: 0;
  box-shadow: 0 4px 20px rgba(176, 38, 255, 0.5);
  animation: logoPulse 3s ease-in-out infinite;
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
}

.logo::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 20px;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  background: var(--color-bg);
  border-radius: 50%;
  box-shadow: inset 0 0 10px rgba(176, 38, 255, 0.3);
}

@keyframes logoPulse {
  0%, 100% {
    transform: scale(1) rotate(0deg);
    box-shadow: 0 4px 20px rgba(176, 38, 255, 0.5);
  }
  50% {
    transform: scale(1.08) rotate(180deg);
    box-shadow: 0 6px 25px rgba(176, 38, 255, 0.7);
  }
}

.nav {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  gap: var(--space-sm);
}

.nav-list {
  display: flex;
  list-style: none;
  gap: var(--space-md);
  flex-wrap: nowrap;
  white-space: nowrap;
}

.nav-item {
  flex-shrink: 0;
}

.nav-item a {
  position: relative;
  font-weight: 500;
  padding: var(--space-xs) 0;
  white-space: nowrap;
}

.nav-item a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-fast);
}

.nav-item a:hover::after,
.nav-item a:focus::after,
.nav-item a.active::after {
  width: 100%;
}

.burger-menu {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  z-index: 10;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
}

.burger-line {
  width: 25px;
  height: 2px;
  background-color: var(--color-text);
  transition: all var(--transition-fast);
}

@media (max-width: 768px) {
  .header .container {
    flex-wrap: nowrap;
    justify-content: space-between;
    align-items: center;
  }
  .logo-burger-wrapper {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-shrink: 0;
  }
  .logo {
    font-size: 1.2rem;
    flex-shrink: 1;
    min-width: 0;
  }
  .nav {
    position: relative;
  }
  .nav-list {
    display: none;
  }
  .burger-menu {
    display: flex;
    flex-shrink: 0;
  }
  .nav-list.active {
    display: flex !important;
    position: fixed !important;
    top: 0 !important;
    right: 0 !important;
    width: 80% !important;
    max-width: 300px !important;
    height: 100vh !important;
    background-color: var(--color-bg) !important;
    flex-direction: column !important;
    padding: var(--space-xl) var(--space-md) !important;
    transition: right var(--transition-medium) !important;
    box-shadow: -5px 0 20px rgba(0, 0, 0, 0.3) !important;
    z-index: 999 !important;
    gap: var(--space-md) !important;
    margin: 0 !important;
  }
  .nav-close-btn {
    display: none;
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    background: transparent;
    border: none;
    color: var(--color-text);
    font-size: 1.5rem;
    cursor: pointer;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    z-index: 1000;
  }
  .nav-list.active .nav-close-btn {
    display: flex;
  }
  .nav-close-btn:hover,
  .nav-close-btn:focus {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-secondary);
  }
  .burger-menu.active .burger-line:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  .burger-menu.active .burger-line:nth-child(2) {
    opacity: 0;
  }
  .burger-menu.active .burger-line:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
  .flex {
    flex-direction: column;
  }
  .hero {
    text-align: center;
  }
  .container {
    padding: 0 var(--space-sm);
  }
  h1 {
    font-size: clamp(1.5rem, 6vw, 3rem);
  }
  h2 {
    font-size: clamp(1.25rem, 4vw, 2rem);
  }
  .section {
    padding: var(--space-md) 0;
  }
  .card {
    padding: var(--space-sm);
  }
  .footer {
    padding: var(--space-md) 0;
  }
  .columns-2,
  .columns-3,
  .columns-4 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 320px) {
  .nav-list.active {
    width: 100%;
    max-width: 100%;
  }
  .logo {
    font-size: 0.8rem;
  }
  .container {
    padding: 0 var(--space-xs);
  }
  body {
    padding-top: 60px;
  }
  .btn {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
  }
  .card {
    padding: var(--space-xs);
  }
  .tutor-img {
    width: 120px;
    height: 120px;
  }
}

.hero {
  min-height: calc(100vh - 70px);
  padding: var(--space-lg) 0;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  margin-bottom: var(--space-lg);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(45deg, rgba(12, 12, 14, 0.8) 0%, rgba(12, 12, 14, 0.4) 100%);
  z-index: 1;
}

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

.hero-tagline {
  font-size: clamp(1rem, 3vw, 1.5rem);
  margin-bottom: var(--space-md);
  font-weight: 300;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.floating-shape {
  position: absolute;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  filter: blur(50px);
  opacity: 0.4;
  z-index: 0;
}

.shape-1 {
  width: 300px;
  height: 300px;
  top: -100px;
  left: -100px;
  animation: float 20s infinite alternate;
}

.shape-2 {
  width: 200px;
  height: 200px;
  bottom: -50px;
  right: -50px;
  background: linear-gradient(135deg, #04E2C0 0%, #B026FF 100%);
  animation: float 25s infinite alternate-reverse;
}

@keyframes float {
  0% {
    transform: translate(0, 0) rotate(0deg);
  }
  100% {
    transform: translate(50px, 50px) rotate(60deg);
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-primary);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
  border: none;
  outline: none;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:hover::before,
.btn:focus::before {
  width: 300px;
  height: 300px;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-text);
  box-shadow: var(--shadow-soft);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 2px solid var(--color-secondary);
}

.btn-secondary:hover,
.btn-secondary:focus {
  background: var(--color-secondary);
  color: var(--color-bg);
}

.btn-text {
  background: transparent;
  padding: 0.5rem;
  position: relative;
}

.btn-text::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-fast);
}

.btn-text:hover::after,
.btn-text:focus::after {
  width: 100%;
}

.card {
  background: rgba(20, 20, 25, 0.5);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-soft);
  transition: all var(--transition-medium);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-medium);
}

.card:hover,
.card:focus-within {
  transform: translateY(-5px);
}

.card:hover::before,
.card:focus-within::before {
  transform: scaleX(1);
}

.card-img {
  height: 200px;
  margin: calc(-1 * var(--space-md));
  margin-bottom: var(--space-md);
  position: relative;
}

.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.card-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 50%;
  background: linear-gradient(to top, rgba(12, 12, 14, 1), transparent);
}

.card-title {
  margin-top: 0;
}

.card-price {
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--color-secondary);
  margin: var(--space-sm) 0;
}

.tutor {
  text-align: center;
}

.tutor-img {
  width: 150px;
  height: 150px;
  border-radius: var(--radius-full);
  margin: 0 auto var(--space-sm);
  overflow: hidden;
  border: 3px solid transparent;
  background: padding-box var(--color-bg), var(--gradient-primary) border-box;
  transition: all var(--transition-medium);
}

.tutor:hover .tutor-img,
.tutor:focus-within .tutor-img {
  box-shadow: var(--shadow-glow);
  transform: scale(1.05);
}

.tutor-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.tutor-name {
  margin-bottom: var(--space-xs);
}

.tutor-specialty {
  color: var(--color-secondary);
  font-weight: 500;
  margin-bottom: var(--space-sm);
}

.tutor-quote {
  font-style: italic;
  position: relative;
  padding: 0 var(--space-sm);
}

.tutor-quote::before,
.tutor-quote::after {
  content: '"';
  font-family: serif;
  font-size: 2rem;
  color: var(--color-accent);
  position: absolute;
  opacity: 0.5;
}

.tutor-quote::before {
  top: -10px;
  left: 0;
}

.tutor-quote::after {
  bottom: -20px;
  right: 0;
}

.pricing-card {
  text-align: center;
  padding: var(--space-md);
  border-radius: var(--radius-md);
  background: rgba(20, 20, 25, 0.5);
  backdrop-filter: blur(10px);
  transition: all var(--transition-medium);
  border: 1px solid rgba(255, 255, 255, 0.05);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.pricing-card.featured {
  position: relative;
  z-index: 2;
  transform: scale(1.05);
}

.pricing-card.featured::before {
  content: '';
  position: absolute;
  inset: -2px;
  background: var(--gradient-primary);
  border-radius: calc(var(--radius-md) + 2px);
  z-index: -1;
}

.pricing-card:hover,
.pricing-card:focus-within {
  transform: translateY(-10px);
  box-shadow: var(--shadow-glow);
}

.pricing-type {
  text-transform: uppercase;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}

.pricing-card.featured .pricing-type {
  color: var(--color-secondary);
}

.pricing-price {
  font-size: 2.5rem;
  font-weight: 700;
  font-family: var(--font-primary);
  margin-bottom: var(--space-sm);
}

.pricing-duration {
  font-size: 0.9rem;
  color: var(--color-muted);
}

.pricing-features {
  margin: var(--space-md) 0;
  list-style: none;
  flex-grow: 1;
}

.pricing-feature {
  margin-bottom: var(--space-xs);
  position: relative;
  padding-left: 1.5rem;
}

.pricing-feature::before {
  content: '✓';
  color: var(--color-secondary);
  position: absolute;
  left: 0;
  font-weight: bold;
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 500;
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--color-text);
  font-family: var(--font-secondary);
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 3px rgba(4, 226, 192, 0.2);
}

.form-control::placeholder {
  color: var(--color-muted);
}

select.form-control {
  background: rgba(20, 20, 25, 0.8);
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23F5F5F7' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

select.form-control option {
  background: rgba(20, 20, 25, 0.95);
  color: var(--color-text);
  padding: 0.5rem;
}

textarea.form-control {
  min-height: 150px;
  resize: vertical;
}

.form-check {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xs);
  margin-top: var(--space-sm);
}

.form-check-input {
  margin-top: 0.25rem;
}

.map {
  height: 400px;
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: var(--space-md);
}

.contact-info {
  list-style: none;
  margin-bottom: var(--space-md);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.contact-icon {
  color: var(--color-accent);
  font-size: 1.25rem;
  flex-shrink: 0;
}


.footer {
  padding: var(--space-lg) 0;
  background: linear-gradient(to top, var(--color-bg) 0%, rgba(12, 12, 14, 0.8) 100%);
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--gradient-primary);
}

.footer-logo {
  margin-bottom: var(--space-md);
}

.footer-links {
  list-style: none;
  margin-bottom: var(--space-md);
}

.footer-link {
  margin-bottom: var(--space-xs);
}

.footer-copyright {
  text-align: center;
  color: var(--color-muted);
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.cookie-consent {
  position: fixed;
  bottom: var(--space-md);
  left: 50%;
  transform: translateX(-50%);
  width: 90%;
  max-width: 500px;
  padding: var(--space-md);
  background: rgba(20, 20, 25, 0.9);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  z-index: 9999;
  display: none;
}

.cookie-consent.active {
  display: block;
  animation: slideUp var(--transition-medium);
}

@keyframes slideUp {
  from {
    transform: translate(-50%, 100%);
    opacity: 0;
  }
  to {
    transform: translate(-50%, 0);
    opacity: 1;
  }
}

.cookie-actions {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.fade-in {
  opacity: 1;
  transform: translateY(0);
  transition: opacity var(--transition-medium), transform var(--transition-medium);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.stagger-children > * {
  opacity: 1;
  transform: translateY(0);
  transition: opacity var(--transition-medium), transform var(--transition-medium);
}

.stagger-children.visible > *:nth-child(1) {
  transition-delay: 0.1s;
}

.stagger-children.visible > *:nth-child(2) {
  transition-delay: 0.2s;
}

.stagger-children.visible > *:nth-child(3) {
  transition-delay: 0.3s;
}

.stagger-children.visible > *:nth-child(4) {
  transition-delay: 0.4s;
}

.stagger-children.visible > * {
  opacity: 1;
  transform: translateY(0);
}

.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.error-code {
  font-size: clamp(5rem, 20vw, 12rem);
  font-weight: 900;
  margin: 0;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.error-message {
  font-size: clamp(1.5rem, 5vw, 2.5rem);
  margin-bottom: var(--space-md);
}

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

.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.bg-gradient {
  background: var(--gradient-primary);
}

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-1 { margin-top: var(--space-xs); }
.mb-1 { margin-bottom: var(--space-xs); }
.mt-2 { margin-top: var(--space-sm); }
.mb-2 { margin-bottom: var(--space-sm); }
.mt-3 { margin-top: var(--space-md); }
.mb-3 { margin-bottom: var(--space-md); }
.mt-4 { margin-top: var(--space-lg); }
.mb-4 { margin-bottom: var(--space-lg); }

.legal-page {
  background: white;
  color: black;
  padding: var(--space-md);
  border-radius: var(--radius-md);
}

.legal-page h1, 
.legal-page h2, 
.legal-page h3 {
  color: #333;
}

.legal-page p, 
.legal-page li {
  color: #666;
}


@media (prefers-reduced-motion: reduce) {
  *, 
  *::before, 
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .floating-shape {
    display: none;
  }
}