/* Brain Engine Kids – Industrial Modern CSS Theme */

/* =====================
   VARIABLES & BASE
===================== */
:root {
  --color-primary: #1D3557;
  --color-secondary: #F9A826;
  --color-accent: #EEF3F6;
  --color-bg: #181C22;
  --color-bg-alt: #23272F;
  --color-metal: #7A7F87;
  --color-metal-light: #B0B4BB;
  --color-text: #F4F6F8;
  --color-text-dark: #23272F;
  --color-shadow: rgba(30, 34, 40, 0.25);
  --color-shadow-strong: rgba(30, 34, 40, 0.45);
  --font-display: 'Montserrat', 'Arial Black', 'Arial', sans-serif;
  --font-body: 'Roboto', 'Segoe UI', 'Arial', sans-serif;
  --radius: 10px;
  --radius-sm: 6px;
  --transition: 0.25s cubic-bezier(.4,0,.2,1);
  --shadow: 0 4px 16px var(--color-shadow);
  --shadow-strong: 0 8px 32px var(--color-shadow-strong);
  --border-metal: 1.5px solid var(--color-metal);
  --border-metal-light: 1px solid var(--color-metal-light);
  --gap: 20px;
  --gap-lg: 30px;
  --gap-xl: 40px;
  --section-padding: 40px 20px;
  --section-margin: 60px;
}

html {
  box-sizing: border-box;
  font-size: 16px;
  background: var(--color-bg);
  color: var(--color-text);
  scroll-behavior: smooth;
}
*, *:before, *:after {
  box-sizing: inherit;
}
body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  margin: 0;
  min-height: 100vh;
  letter-spacing: 0.01em;
  line-height: 1.6;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: var(--color-secondary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover, a:focus {
  color: var(--color-accent);
}

/* =====================
   TYPOGRAPHY
===================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--color-secondary);
  margin-top: 0;
  margin-bottom: 0.5em;
  letter-spacing: 0.02em;
  font-weight: 700;
  text-shadow: 0 2px 8px var(--color-shadow);
}
h1 {
  font-size: 2.4rem;
  line-height: 1.1;
}
h2 {
  font-size: 2rem;
  line-height: 1.15;
}
h3 {
  font-size: 1.3rem;
  line-height: 1.2;
}
h4 {
  font-size: 1.1rem;
  font-weight: 600;
}
p, ul, ol, blockquote {
  font-family: var(--font-body);
  color: var(--color-text);
  font-size: 1rem;
  margin-bottom: 1em;
}
blockquote {
  font-style: italic;
  color: var(--color-primary);
  border-left: 4px solid var(--color-secondary);
  padding-left: 1em;
  margin: 0 0 0.5em 0;
}
strong {
  color: var(--color-secondary);
  font-weight: 700;
}

/* =====================
   CONTAINER & LAYOUT
===================== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  flex-direction: column;
  gap: var(--gap);
}
.content-wrapper {
  display: flex;
  flex-direction: column;
  gap: var(--gap-lg);
}

.section {
  margin-bottom: var(--section-margin);
  padding: var(--section-padding);
  background: var(--color-bg-alt);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: var(--border-metal);
}

/* =====================
   HEADER & NAVIGATION
===================== */
header {
  background: linear-gradient(90deg, var(--color-bg-alt) 80%, var(--color-metal) 100%);
  border-bottom: var(--border-metal);
  box-shadow: 0 2px 12px var(--color-shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}
header .container {
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap);
  min-height: 70px;
}
header img {
  height: 48px;
  width: auto;
  filter: grayscale(0.2) contrast(1.2) drop-shadow(0 2px 6px var(--color-shadow));
}
.main-nav {
  display: flex;
  flex-direction: row;
  gap: var(--gap);
  align-items: center;
}
.main-nav a {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--color-metal-light);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
  letter-spacing: 0.04em;
  font-weight: 600;
}
.main-nav a:hover, .main-nav a:focus {
  background: var(--color-secondary);
  color: var(--color-bg);
}
.cta-btn {
  background: linear-gradient(90deg, var(--color-secondary) 80%, #FFD166 100%);
  color: var(--color-bg);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  padding: 10px 28px;
  border: none;
  border-radius: var(--radius);
  box-shadow: 0 2px 8px var(--color-shadow);
  cursor: pointer;
  margin-left: var(--gap);
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
  letter-spacing: 0.05em;
  text-shadow: 0 1px 2px var(--color-shadow);
  outline: none;
  position: relative;
  z-index: 1;
}
.cta-btn:hover, .cta-btn:focus {
  background: linear-gradient(90deg, #FFD166 60%, var(--color-secondary) 100%);
  color: var(--color-primary);
  box-shadow: 0 4px 16px var(--color-shadow-strong);
  transform: translateY(-2px) scale(1.03);
}

/* Hamburger menu button */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-secondary);
  font-size: 2rem;
  cursor: pointer;
  margin-left: var(--gap);
  transition: color var(--transition), transform var(--transition);
  z-index: 110;
}
.mobile-menu-toggle:focus {
  outline: 2px solid var(--color-secondary);
}

/* =====================
   MOBILE MENU OVERLAY
===================== */
.mobile-menu {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(24,28,34,0.98);
  z-index: 200;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: flex-start;
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(.4,0,.2,1);
  pointer-events: none;
  opacity: 0;
}
.mobile-menu.open {
  transform: translateX(0);
  pointer-events: auto;
  opacity: 1;
}
.mobile-menu-close {
  background: none;
  border: none;
  color: var(--color-secondary);
  font-size: 2.2rem;
  margin: 24px 24px 0 0;
  cursor: pointer;
  transition: color var(--transition), transform var(--transition);
}
.mobile-menu-close:hover, .mobile-menu-close:focus {
  color: #FFD166;
  transform: scale(1.1);
}
.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 24px;
  align-items: flex-end;
  margin: 60px 40px 0 0;
}
.mobile-nav a {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--color-accent);
  background: none;
  padding: 10px 0;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
  font-weight: 700;
  letter-spacing: 0.04em;
}
.mobile-nav a:hover, .mobile-nav a:focus {
  color: var(--color-secondary);
  background: var(--color-bg-alt);
}

/* =====================
   HERO SECTION
===================== */
.hero {
  background: linear-gradient(120deg, var(--color-bg-alt) 70%, var(--color-metal) 100%);
  padding: var(--section-padding);
  margin-bottom: var(--section-margin);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: var(--border-metal);
}
.hero .container {
  align-items: center;
  justify-content: center;
}
.hero .content-wrapper {
  align-items: flex-start;
  gap: var(--gap-lg);
}
.hero h1 {
  color: var(--color-secondary);
  font-size: 2.5rem;
  text-shadow: 0 2px 12px var(--color-shadow-strong);
}
.hero p {
  color: var(--color-metal-light);
  font-size: 1.2rem;
  margin-bottom: 1.5em;
}

/* =====================
   FEATURES & CARDS
===================== */
.features, .course-list, .courses-preview, .faq-list, .team-members, .photo-gallery, .feature-grid, .course-cards {
  display: flex;
  flex-direction: column;
  gap: var(--gap-lg);
}
.feature-grid, .course-cards, .team-members {
  flex-direction: row;
  flex-wrap: wrap;
  gap: var(--gap);
  justify-content: space-between;
}
.feature-grid > div, .course-cards > div, .team-members > div {
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  border: var(--border-metal-light);
  padding: 28px 22px;
  min-width: 240px;
  flex: 1 1 260px;
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
  position: relative;
}
.feature-grid > div:hover, .course-cards > div:hover, .team-members > div:hover {
  box-shadow: var(--shadow-strong);
  border-color: var(--color-secondary);
  transform: translateY(-4px) scale(1.03);
}
.feature-grid h3, .course-cards h3, .team-members h4 {
  color: var(--color-secondary);
  font-size: 1.2rem;
  margin-bottom: 0.3em;
}
.feature-grid p, .course-cards p, .team-members p {
  color: var(--color-metal-light);
  font-size: 1rem;
}
.course-cards h3 span {
  color: var(--color-metal-light);
  font-size: 0.95em;
  font-weight: 400;
  margin-left: 0.5em;
}

/* =====================
   TESTIMONIALS
===================== */
.testimonials {
  margin-bottom: var(--section-margin);
  padding: var(--section-padding);
  background: var(--color-bg-alt);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: var(--border-metal);
}
.testimonials .content-wrapper {
  gap: var(--gap);
}
.testimonial-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
  padding: 20px;
  background: var(--color-accent);
  color: var(--color-text-dark);
  border-radius: var(--radius-sm);
  box-shadow: 0 2px 12px var(--color-shadow);
  border-left: 6px solid var(--color-secondary);
  margin-bottom: 20px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.testimonial-card blockquote {
  color: var(--color-primary);
  border-left: none;
  padding-left: 0;
  margin-bottom: 0.5em;
  font-size: 1.1rem;
}
.testimonial-card p {
  color: var(--color-text-dark);
  font-size: 1rem;
  margin: 0;
}
.testimonial-card:hover {
  box-shadow: var(--shadow-strong);
  transform: translateY(-2px) scale(1.01);
}

/* =====================
   CTA SECTION
===================== */
.cta {
  margin-bottom: var(--section-margin);
  padding: var(--section-padding);
  background: linear-gradient(90deg, var(--color-bg-alt) 80%, var(--color-metal) 100%);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: var(--border-metal);
  display: flex;
  flex-direction: column;
  align-items: center;
}
.cta .content-wrapper {
  align-items: center;
  gap: var(--gap);
}
.cta h2 {
  color: var(--color-secondary);
  font-size: 2rem;
  margin-bottom: 0.5em;
}
.contact-info {
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  box-shadow: 0 2px 8px var(--color-shadow);
  border: var(--border-metal-light);
  padding: 18px 20px;
  margin-top: 18px;
  color: var(--color-metal-light);
  font-size: 1rem;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* =====================
   TEXT-IMAGE SECTION
===================== */
.text-image-section {
  display: flex;
  align-items: center;
  gap: 30px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.text-image-section > div {
  flex: 1 1 260px;
  min-width: 220px;
}

/* =====================
   FAQ & LEGAL
===================== */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--gap);
}
.faq-list > div {
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  border: var(--border-metal-light);
  padding: 20px 18px;
  margin-bottom: 20px;
  transition: box-shadow var(--transition), border-color var(--transition);
}
.faq-list > div:hover {
  box-shadow: var(--shadow-strong);
  border-color: var(--color-secondary);
}
.legal {
  margin-bottom: var(--section-margin);
  padding: var(--section-padding);
  background: var(--color-bg-alt);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: var(--border-metal);
}

/* =====================
   FOOTER
===================== */
footer {
  background: var(--color-bg-alt);
  border-top: var(--border-metal);
  box-shadow: 0 -2px 12px var(--color-shadow);
  padding: 32px 0 16px 0;
  margin-top: 60px;
}
footer .container {
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.footer-nav {
  display: flex;
  flex-direction: row;
  gap: var(--gap);
  margin-bottom: 8px;
}
.footer-nav a {
  color: var(--color-metal-light);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  transition: color var(--transition);
}
.footer-nav a:hover, .footer-nav a:focus {
  color: var(--color-secondary);
}
footer p {
  color: var(--color-metal-light);
  font-size: 0.95rem;
  margin: 0;
}

/* =====================
   COOKIE CONSENT BANNER
===================== */
.cookie-banner {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  background: var(--color-bg-alt);
  color: var(--color-text);
  border-top: 3px solid var(--color-secondary);
  box-shadow: 0 -4px 24px var(--color-shadow-strong);
  z-index: 9999;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  padding: 22px 24px;
  gap: var(--gap);
  animation: cookieBannerIn 0.5s cubic-bezier(.4,0,.2,1);
}
@keyframes cookieBannerIn {
  from { transform: translateY(100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}
.cookie-banner p {
  margin: 0;
  color: var(--color-text);
  font-size: 1rem;
}
.cookie-banner .cookie-actions {
  display: flex;
  flex-direction: row;
  gap: 16px;
}
.cookie-btn {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  padding: 8px 18px;
  margin: 0;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition);
  box-shadow: 0 2px 8px var(--color-shadow);
}
.cookie-btn.accept {
  background: var(--color-secondary);
  color: var(--color-bg);
}
.cookie-btn.accept:hover, .cookie-btn.accept:focus {
  background: #FFD166;
  color: var(--color-primary);
}
.cookie-btn.reject {
  background: var(--color-metal);
  color: var(--color-accent);
}
.cookie-btn.reject:hover, .cookie-btn.reject:focus {
  background: var(--color-metal-light);
  color: var(--color-bg);
}
.cookie-btn.settings {
  background: var(--color-bg);
  color: var(--color-secondary);
  border: 1px solid var(--color-secondary);
}
.cookie-btn.settings:hover, .cookie-btn.settings:focus {
  background: var(--color-secondary);
  color: var(--color-bg);
}

/* Cookie Modal */
.cookie-modal {
  position: fixed;
  left: 0; right: 0; top: 0; bottom: 0;
  background: rgba(24,28,34,0.92);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s cubic-bezier(.4,0,.2,1);
}
.cookie-modal.open {
  opacity: 1;
  pointer-events: auto;
}
.cookie-modal-content {
  background: var(--color-bg-alt);
  color: var(--color-text);
  border-radius: var(--radius);
  box-shadow: var(--shadow-strong);
  padding: 36px 32px 28px 32px;
  min-width: 320px;
  max-width: 95vw;
  display: flex;
  flex-direction: column;
  gap: 22px;
  animation: cookieModalIn 0.4s cubic-bezier(.4,0,.2,1);
}
@keyframes cookieModalIn {
  from { transform: scale(0.95); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
.cookie-modal-content h2 {
  color: var(--color-secondary);
  font-size: 1.3rem;
  margin-bottom: 0.5em;
}
.cookie-category {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 14px;
  margin-bottom: 10px;
}
.cookie-category label {
  font-size: 1rem;
  color: var(--color-text);
  font-family: var(--font-body);
}
.cookie-category input[type="checkbox"] {
  accent-color: var(--color-secondary);
  width: 20px;
  height: 20px;
}
.cookie-category input[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
}
.cookie-modal-actions {
  display: flex;
  flex-direction: row;
  gap: 16px;
  justify-content: flex-end;
}
.cookie-modal-close {
  position: absolute;
  top: 18px;
  right: 24px;
  background: none;
  border: none;
  color: var(--color-secondary);
  font-size: 2rem;
  cursor: pointer;
  transition: color var(--transition);
}
.cookie-modal-close:hover, .cookie-modal-close:focus {
  color: #FFD166;
}

/* =====================
   RESPONSIVE DESIGN
===================== */
@media (max-width: 1024px) {
  .container {
    max-width: 900px;
  }
  .feature-grid > div, .course-cards > div, .team-members > div {
    min-width: 180px;
    padding: 20px 12px;
  }
}
@media (max-width: 900px) {
  .container {
    max-width: 98vw;
  }
  .feature-grid, .course-cards, .team-members {
    gap: 16px;
  }
}
@media (max-width: 768px) {
  html {
    font-size: 15px;
  }
  header .container {
    flex-direction: row;
    gap: 10px;
    min-height: 56px;
  }
  .main-nav {
    display: none;
  }
  .mobile-menu-toggle {
    display: block;
  }
  .feature-grid, .course-cards, .team-members {
    flex-direction: column;
    gap: 18px;
  }
  .feature-grid > div, .course-cards > div, .team-members > div {
    min-width: 0;
    width: 100%;
    flex: 1 1 100%;
  }
  .text-image-section {
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
  }
  .footer-nav {
    flex-direction: column;
    gap: 8px;
    align-items: center;
  }
  .cookie-banner {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 18px 12px;
  }
  .cookie-banner .cookie-actions {
    flex-direction: column;
    gap: 10px;
    width: 100%;
  }
  .cookie-modal-content {
    min-width: 0;
    padding: 22px 10px 18px 10px;
  }
}
@media (max-width: 480px) {
  html {
    font-size: 14px;
  }
  .container {
    padding: 0 8px;
  }
  .hero h1 {
    font-size: 1.5rem;
  }
  .cta-btn {
    font-size: 1rem;
    padding: 8px 16px;
  }
  .cookie-modal-content {
    padding: 10px 4px 10px 4px;
  }
}

/* =====================
   UTILITY CLASSES
===================== */
.card-container {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}
.card {
  margin-bottom: 20px;
  position: relative;
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  border: var(--border-metal-light);
  padding: 24px 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
}
.card:hover {
  box-shadow: var(--shadow-strong);
  border-color: var(--color-secondary);
  transform: translateY(-2px) scale(1.01);
}
.content-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: space-between;
}
.text-image-section {
  display: flex;
  align-items: center;
  gap: 30px;
  flex-wrap: wrap;
}
.testimonial-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px;
}
.feature-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 15px;
}

/* =====================
   MICRO-INTERACTIONS
===================== */
button, .cta-btn, .cookie-btn {
  transition: background var(--transition), color var(--transition), box-shadow var(--transition), transform var(--transition);
}
button:active, .cta-btn:active, .cookie-btn:active {
  transform: scale(0.97);
}

/* =====================
   FOCUS STYLES
===================== */
a:focus, button:focus, .cta-btn:focus, .cookie-btn:focus {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
  z-index: 2;
}

/* =====================
   SCROLLBAR (Industrial)
===================== */
::-webkit-scrollbar {
  width: 12px;
  background: var(--color-bg-alt);
}
::-webkit-scrollbar-thumb {
  background: var(--color-metal);
  border-radius: 6px;
  border: 2px solid var(--color-bg-alt);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-secondary);
}

/* =====================
   END OF CSS
===================== */