/* «Радуга» бөбекжай — mobile-first styles */

:root {
  --color-primary: #1e88e5;
  --color-primary-dark: #1565c0;
  --color-primary-light: #42a5f5;
  --color-accent: #ffc107;
  --color-accent-soft: #ffd54f;
  --color-green: #66bb6a;
  --color-green-dark: #43a047;
  --color-white: #ffffff;
  --color-bg: #f8fbff;
  --color-bg-alt: #fff9e6;
  --color-text: #1a2b3c;
  --color-text-muted: #5a6b7c;
  --color-border: #e3edf7;
  --shadow-sm: 0 2px 8px rgba(30, 136, 229, 0.08);
  --shadow-md: 0 8px 24px rgba(30, 136, 229, 0.12);
  --shadow-lg: 0 16px 40px rgba(30, 136, 229, 0.15);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  --font-sans: "Nunito", "Segoe UI", system-ui, -apple-system, sans-serif;
  --header-height: 64px;
  --transition: 0.25s ease;
  --container: min(100% - 2rem, 1140px);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 1rem);
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
  color: var(--color-primary-dark);
}

h1, h2, h3, h4 {
  line-height: 1.25;
  margin-top: 0;
}

p {
  margin-top: 0;
}

ul {
  padding-left: 1.25rem;
}

.container {
  width: var(--container);
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 10000;
  padding: 0.75rem 1rem;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-sm);
}

.skip-link:focus {
  top: 1rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  text-decoration: none;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: var(--color-white);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn-block {
  width: 100%;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: 1200px;
  margin-inline: auto;
  padding: 0.75rem 1rem;
  min-height: var(--header-height);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text);
  text-decoration: none;
  font-weight: 700;
}

.logo:hover {
  color: var(--color-primary);
}

.logo-icon {
  font-size: 1.75rem;
  line-height: 1;
}

.logo-text {
  display: flex;
  flex-direction: column;
  font-size: 1.1rem;
  line-height: 1.2;
}

.logo-text small {
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-transform: lowercase;
}

/* Nav toggle */
.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: none;
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  cursor: pointer;
  z-index: 1002;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin-inline: auto;
  background: var(--color-primary);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav */
.main-nav {
  position: fixed;
  inset: var(--header-height) 0 0 0;
  background: var(--color-white);
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform var(--transition);
  z-index: 1001;
}

.main-nav.is-open {
  transform: translateX(0);
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 1rem;
}

.nav-item {
  border-bottom: 1px solid var(--color-border);
}

.nav-link,
.dropdown-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0.875rem 0.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  text-decoration: none;
  font-family: inherit;
}

.dropdown-toggle::after {
  content: "";
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--color-primary);
  border-bottom: 2px solid var(--color-primary);
  transform: rotate(45deg);
  transition: transform var(--transition);
  flex-shrink: 0;
  margin-left: 0.5rem;
}

.has-dropdown.is-open > .dropdown-toggle::after {
  transform: rotate(-135deg);
}

.dropdown-menu {
  list-style: none;
  margin: 0;
  padding: 0 0 0.5rem 0.75rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition);
}

.has-dropdown.is-open > .dropdown-menu {
  max-height: 600px;
}

.dropdown-menu a {
  display: block;
  padding: 0.5rem 0.5rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-muted);
  border-left: 3px solid transparent;
}

.dropdown-menu a:hover {
  color: var(--color-primary);
  border-left-color: var(--color-accent);
}

.nav-cta {
  border-bottom: none;
  padding-top: 1rem;
}

/* Hero */
.hero {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  padding: 3rem 0 4rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, #e3f2fd 0%, #fff9c4 45%, #e8f5e9 100%);
  z-index: 0;
}

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

.hero-badge {
  display: inline-block;
  padding: 0.35rem 1rem;
  background: var(--color-accent-soft);
  color: var(--color-text);
  font-size: 0.8rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
}

.hero h1 {
  font-size: clamp(1.75rem, 5vw, 2.75rem);
  color: var(--color-primary-dark);
  margin-bottom: 0.5rem;
}

.hero-slogan {
  font-size: clamp(1.1rem, 3vw, 1.5rem);
  font-weight: 600;
  color: var(--color-green-dark);
  margin-bottom: 1rem;
}

.hero-text {
  color: var(--color-text-muted);
  max-width: 36ch;
  margin-inline: auto 1.5rem;
  margin-bottom: 1.5rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.hero-decor {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
}

.cloud {
  position: absolute;
  background: var(--color-white);
  border-radius: 50%;
  opacity: 0.85;
  box-shadow: var(--shadow-sm);
}

.cloud::before,
.cloud::after {
  content: "";
  position: absolute;
  background: inherit;
  border-radius: 50%;
}

.cloud-1 {
  width: 80px;
  height: 30px;
  top: 15%;
  left: 10%;
}

.cloud-1::before {
  width: 40px;
  height: 40px;
  top: -20px;
  left: 10px;
}

.cloud-1::after {
  width: 50px;
  height: 50px;
  top: -25px;
  right: 5px;
}

.cloud-2 {
  width: 60px;
  height: 24px;
  top: 25%;
  right: 8%;
}

.cloud-2::before {
  width: 30px;
  height: 30px;
  top: -15px;
  left: 8px;
}

.sun {
  position: absolute;
  top: 8%;
  right: 20%;
  width: 56px;
  height: 56px;
  background: var(--color-accent);
  border-radius: 50%;
  box-shadow: 0 0 0 12px rgba(255, 193, 7, 0.25);
}

.hill {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: var(--color-green);
  border-radius: 50% 50% 0 0 / 100% 100% 0 0;
  opacity: 0.35;
}

/* Sections */
.section {
  padding: 3rem 0;
}

.section-alt {
  background: var(--color-bg-alt);
}

.section-header {
  text-align: center;
  margin-bottom: 2rem;
}

.section-header h2 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  color: var(--color-primary-dark);
}

.section-lead {
  color: var(--color-text-muted);
  max-width: 50ch;
  margin-inline: auto;
}

.section-header-tag {
  margin-bottom: 2.5rem;
}

.section-tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--color-primary);
  color: var(--color-white);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
  margin-bottom: 0.5rem;
}

.section-tag-green {
  background: var(--color-green);
}

.section-tag-yellow {
  background: var(--color-accent);
  color: var(--color-text);
}

/* About */
.about-grid {
  display: grid;
  gap: 1rem;
}

.about-card {
  background: var(--color-white);
  padding: 1.5rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  text-align: center;
  border-top: 4px solid var(--color-primary);
}

.about-icon {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.about-card h3 {
  color: var(--color-primary-dark);
  margin-bottom: 0.5rem;
}

/* Cards grid */
.cards-grid {
  display: grid;
  gap: 1rem;
}

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

.cards-grid-1 {
  max-width: 800px;
  margin-inline: auto;
}

.feature-card,
.content-card {
  background: var(--color-white);
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--color-primary-light);
  transition: transform var(--transition), box-shadow var(--transition);
}

.feature-card:hover,
.content-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.feature-num {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--color-accent);
  background: rgba(255, 193, 7, 0.2);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.5rem;
}

.feature-card h3,
.content-card h3 {
  font-size: 1.05rem;
  color: var(--color-primary-dark);
  margin-bottom: 0.5rem;
}

.content-card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-bottom: 0;
}

.content-card-wide {
  border-left-color: var(--color-green);
}

.group-card {
  border-left-color: var(--color-accent);
}

.group-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-white);
  background: var(--color-green);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  margin-bottom: 0.5rem;
}

.check-list {
  margin: 1rem 0 0;
  color: var(--color-text-muted);
}

.check-list li {
  margin-bottom: 0.35rem;
}

/* Steps */
.steps-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 1rem;
}

.step-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: start;
  background: var(--color-white);
  padding: 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.step-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-green));
  color: var(--color-white);
  font-weight: 800;
  font-size: 1.25rem;
  border-radius: 50%;
  flex-shrink: 0;
}

.step-item h3 {
  font-size: 1rem;
  color: var(--color-primary-dark);
  margin-bottom: 0.25rem;
}

.step-item p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin: 0;
}

.admission-note {
  text-align: center;
  margin-top: 1.5rem;
  font-weight: 600;
}

/* Gallery */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

.gallery-item {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.gallery-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-green));
  color: var(--color-white);
  font-weight: 700;
  font-size: 0.9rem;
  box-shadow: var(--shadow-sm);
  position: relative;
}

.gallery-placeholder::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 8px,
    rgba(255, 255, 255, 0.08) 8px,
    rgba(255, 255, 255, 0.08) 16px
  );
}

.gallery-placeholder span {
  position: relative;
  z-index: 1;
  background: rgba(0, 0, 0, 0.2);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-full);
}

.gallery-placeholder:nth-child(2n) {
  background: linear-gradient(135deg, var(--color-accent), var(--color-primary-light));
}

.gallery-placeholder:nth-child(3n) {
  background: linear-gradient(135deg, var(--color-green), var(--color-primary));
}

/* Contact */
.contact-grid {
  display: grid;
  gap: 2rem;
}

.contact-block {
  margin-bottom: 1.25rem;
}

.contact-block h3 {
  font-size: 0.9rem;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}

.contact-block p {
  color: var(--color-text-muted);
  margin: 0;
}

.contact-form {
  background: var(--color-white);
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--color-text);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: inherit;
  font-size: 1rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(30, 136, 229, 0.15);
}

.form-group input.error,
.form-group textarea.error {
  border-color: #e53935;
}

.form-message {
  min-height: 1.5rem;
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

.form-message.success {
  color: var(--color-green-dark);
}

.form-message.error {
  color: #c62828;
}

/* Footer */
.site-footer {
  background: linear-gradient(180deg, var(--color-primary-dark), #0d47a1);
  color: rgba(255, 255, 255, 0.9);
  padding-top: 2.5rem;
}

.footer-grid {
  display: grid;
  gap: 2rem;
  padding-bottom: 2rem;
}

.footer-logo {
  color: var(--color-white);
}

.footer-logo .logo-text small {
  color: rgba(255, 255, 255, 0.7);
}

.footer-slogan {
  margin-top: 0.5rem;
  font-style: italic;
  opacity: 0.9;
}

.footer-contact h3,
.footer-social h3 {
  font-size: 1rem;
  margin-bottom: 0.75rem;
  color: var(--color-accent-soft);
}

.footer-contact ul,
.social-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-contact li,
.social-links li {
  margin-bottom: 0.5rem;
}

.footer-contact a,
.social-links a {
  color: rgba(255, 255, 255, 0.85);
}

.footer-contact a:hover,
.social-links a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding: 1rem 0;
  text-align: center;
  font-size: 0.85rem;
  opacity: 0.85;
}

.footer-bottom p {
  margin: 0;
}

/* Tablet */
@media (min-width: 600px) {
  .about-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .cards-grid:not(.cards-grid-3):not(.cards-grid-1) {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .contact-grid {
    grid-template-columns: 1fr 1.2fr;
    align-items: start;
  }

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

/* Desktop */
@media (min-width: 900px) {
  :root {
    --header-height: 72px;
  }

  .nav-toggle {
    display: none;
  }

  .main-nav {
    position: static;
    transform: none;
    overflow: visible;
    background: transparent;
  }

  .nav-list {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0;
    padding: 0;
  }

  .nav-item {
    position: relative;
    border-bottom: none;
  }

  .nav-link,
  .dropdown-toggle {
    padding: 0.5rem 0.65rem;
    font-size: 0.8rem;
    white-space: nowrap;
  }

  .dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 260px;
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 0.5rem 0;
    max-height: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
    z-index: 100;
  }

  .has-dropdown:hover > .dropdown-menu,
  .has-dropdown.is-open > .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    max-height: none;
  }

  .has-dropdown:hover > .dropdown-toggle::after,
  .has-dropdown.is-open > .dropdown-toggle::after {
    transform: rotate(-135deg);
  }

  .dropdown-menu a {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
  }

  .nav-cta {
    padding-top: 0;
    margin-left: 0.25rem;
  }

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

  .hero {
    min-height: 80vh;
  }

  .hero-content {
    text-align: left;
  }

  .hero-text {
    margin-inline: 0;
  }

  .hero-actions {
    justify-content: flex-start;
  }

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

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

@media (min-width: 1100px) {
  .cards-grid:not(.cards-grid-3):not(.cards-grid-1) {
    grid-template-columns: repeat(3, 1fr);
  }

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

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}