/* ============================================
   MentorLabs Cloud Sales Site — Design System
   Built by Systementor AB
   ============================================ */

/* --- CSS Variables --- */
:root {
  --navy-900: #0d1b2a;
  --navy-800: #1a2533;
  --navy-700: #232F3E;
  --navy-600: #2c3e50;
  --navy-100: #e8edf2;
  --orange: #FF9900;
  --orange-dark: #E88B00;
  --orange-light: #FFF3E0;
  --orange-glow: rgba(255,153,0,0.25);
  --white: #FFFFFF;
  --gray-50: #f8f9fa;
  --gray-100: #f0f2f5;
  --gray-200: #e2e6ea;
  --gray-300: #ced4da;
  --gray-500: #6c757d;
  --gray-600: #545B64;
  --gray-800: #212529;
  --blue-600: #0073BB;
  --blue-700: #0066A5;
  --green-600: #1D8102;
  --red-500: #D13212;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.10);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Consolas', 'Monaco', monospace;
  --max-width: 1200px;
  --header-height: 72px;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--gray-800);
  background: var(--white);
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--blue-600); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--blue-700); }
ul { list-style: none; }

::selection { background: var(--orange); color: var(--white); }

/* --- Typography --- */
h1, h2, h3, h4, h5 { line-height: 1.2; font-weight: 700; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.4rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.5rem); }

.highlight { color: var(--orange); }
.text-muted { color: var(--gray-500); }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font);
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none !important;
  white-space: nowrap;
  letter-spacing: 0.01em;
}

.btn-primary {
  background: var(--orange);
  color: var(--white) !important;
  border-color: var(--orange);
  box-shadow: 0 2px 8px var(--orange-glow);
}
.btn-primary:hover {
  background: var(--orange-dark);
  border-color: var(--orange-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(255,153,0,0.35);
}

.btn-outline {
  background: transparent;
  color: var(--white) !important;
  border-color: rgba(255,255,255,0.4);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.7);
  transform: translateY(-1px);
}

.btn-white {
  background: var(--white);
  color: var(--navy-700) !important;
  border-color: var(--white);
  box-shadow: var(--shadow-sm);
}
.btn-white:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-lg { padding: 16px 36px; font-size: 17px; border-radius: var(--radius-md); }

/* --- Header --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(13, 27, 42, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 1000;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background var(--transition);
}

.header.scrolled {
  background: rgba(13, 27, 42, 0.98);
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--white) !important;
  text-decoration: none !important;
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.03em;
}

.logo svg { width: 32px; height: 32px; flex-shrink: 0; }

.logo-text { display: flex; flex-direction: column; }
.logo-name { line-height: 1.2; }
.logo-tagline { font-size: 10px; font-weight: 400; color: var(--gray-500); letter-spacing: 0.05em; text-transform: uppercase; }

.nav { display: flex; align-items: center; gap: 6px; }
.nav-link {
  color: rgba(255,255,255,0.75) !important;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.nav-link:hover,
.nav-link.active { color: var(--white) !important; background: rgba(255,255,255,0.08); }

.nav-right { display: flex; align-items: center; gap: 12px; }

/* --- Language Switcher --- */
.lang-switcher { position: relative; }
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-sm);
  color: rgba(255,255,255,0.8);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  font-family: var(--font);
  transition: all var(--transition);
}
.lang-toggle:hover { background: rgba(255,255,255,0.12); }
.lang-toggle .globe { font-size: 16px; }
.lang-toggle .chevron { font-size: 10px; margin-left: 2px; transition: transform var(--transition); }
.lang-switcher.open .lang-toggle .chevron { transform: rotate(180deg); }

.lang-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 160px;
  overflow: hidden;
  z-index: 1001;
}
.lang-switcher.open .lang-dropdown { display: block; animation: fadeInDown 0.2s ease; }

.lang-option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  color: var(--gray-800) !important;
  font-size: 14px;
  font-weight: 500;
  transition: background var(--transition);
  text-decoration: none !important;
}
.lang-option:hover { background: var(--gray-100); }
.lang-option.active { background: var(--orange-light); color: var(--orange) !important; font-weight: 600; }
.lang-flag { font-size: 18px; }

/* --- Mobile Nav --- */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  background: none;
  border: none;
  cursor: pointer;
}
.mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all var(--transition);
}
.mobile-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.mobile-toggle.open span:nth-child(2) { opacity: 0; }
.mobile-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

@media (max-width: 768px) {
  .mobile-toggle { display: flex; }
  .nav {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--navy-900);
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    gap: 4px;
    z-index: 999;
  }
  .nav.open { display: flex; }
  .nav-link { padding: 14px 16px; font-size: 16px; }
  .nav-right { margin-top: 16px; flex-direction: column; }
}

/* --- Hero --- */
.hero {
  position: relative;
  background: linear-gradient(160deg, var(--navy-900) 0%, var(--navy-800) 30%, #15202b 60%, #0a1628 100%);
  color: var(--white);
  padding: 160px 24px 120px;
  text-align: center;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: 
    radial-gradient(circle at 20% 50%, rgba(255,153,0,0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(0,115,187,0.06) 0%, transparent 50%),
    radial-gradient(circle at 50% 80%, rgba(29,129,2,0.04) 0%, transparent 50%);
  animation: heroShimmer 20s ease-in-out infinite;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(to top, var(--white), transparent);
}

@keyframes heroShimmer {
  0%, 100% { transform: translate(0, 0); }
  33% { transform: translate(1%, -1%); }
  66% { transform: translate(-1%, 1%); }
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 50px;
  font-size: 13px;
  font-weight: 500;
  color: var(--orange);
  margin-bottom: 32px;
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: var(--orange);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.5); }
}

.hero h1 {
  font-size: clamp(2.6rem, 6vw, 4.2rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -0.04em;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: rgba(255,255,255,0.65);
  margin-bottom: 48px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* --- Section Base --- */
.section {
  padding: 100px 24px;
}

.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-header h2 {
  margin-bottom: 16px;
  color: var(--navy-700);
}

.section-header p {
  font-size: 1.1rem;
  color: var(--gray-500);
  max-width: 600px;
  margin: 0 auto;
}

.section-dark {
  background: var(--navy-700);
  color: var(--white);
}

.section-dark .section-header h2 { color: var(--white); }
.section-dark .section-header p { color: rgba(255,255,255,0.6); }

.section-gray { background: var(--gray-50); }

/* --- Problem Cards --- */
.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.problem-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.problem-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--orange), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.problem-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.problem-card:hover::before { opacity: 1; }

.problem-icon {
  font-size: 40px;
  margin-bottom: 20px;
  display: block;
}

.problem-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--navy-700);
}

.problem-card p {
  font-size: 0.95rem;
  color: var(--gray-500);
  line-height: 1.65;
}

/* --- Solution / Service Cards --- */
.solution-tabs {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 48px;
}

.solution-tab {
  padding: 10px 24px;
  border: 1px solid var(--gray-200);
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  background: var(--white);
  color: var(--gray-600);
  transition: all var(--transition);
  font-family: var(--font);
}

.solution-tab:hover { border-color: var(--orange); color: var(--orange); }
.solution-tab.active {
  background: var(--orange);
  color: var(--white);
  border-color: var(--orange);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}

.service-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition);
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.service-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

.service-icon {
  font-size: 36px;
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--orange-light);
  border-radius: var(--radius-md);
}

.service-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--navy-700);
}

.service-card p {
  font-size: 0.9rem;
  color: var(--gray-500);
  line-height: 1.6;
}

/* --- Lessons --- */
.lesson-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 20px;
}

.lesson-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 28px;
  position: relative;
  transition: all var(--transition);
}

.lesson-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

.lesson-number {
  position: absolute;
  top: -12px;
  right: 20px;
  width: 36px;
  height: 36px;
  background: var(--orange);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 14px;
  box-shadow: 0 2px 8px var(--orange-glow);
}

.lesson-card h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
  color: var(--navy-700);
  padding-right: 30px;
}

.lesson-card p {
  font-size: 0.9rem;
  color: var(--gray-500);
  line-height: 1.6;
}

/* --- Educators --- */
.edu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.edu-card {
  text-align: center;
  padding: 36px 24px;
  border-radius: var(--radius-lg);
  transition: all var(--transition);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
}

.edu-card:hover {
  background: rgba(255,255,255,0.08);
  transform: translateY(-3px);
}

.edu-icon { font-size: 48px; margin-bottom: 20px; display: block; }

.edu-card h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
  color: var(--white);
}

.edu-card p {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.65;
}

/* --- Schools List --- */
.schools-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 16px;
}

.school-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}

.school-item:hover {
  border-color: var(--orange);
  box-shadow: var(--shadow-sm);
}

.school-check {
  width: 28px;
  height: 28px;
  background: var(--orange-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--orange);
  font-weight: 700;
  font-size: 14px;
}

.school-item span {
  font-size: 0.95rem;
  color: var(--gray-800);
  line-height: 1.5;
}

/* --- CTA --- */
.cta {
  position: relative;
  background: linear-gradient(160deg, var(--navy-900), var(--navy-800));
  color: var(--white);
  text-align: center;
  padding: 100px 24px;
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: 
    radial-gradient(circle at 30% 50%, rgba(255,153,0,0.1) 0%, transparent 60%),
    radial-gradient(circle at 70% 50%, rgba(0,115,187,0.06) 0%, transparent 60%);
}

.cta-inner { position: relative; z-index: 1; max-width: 650px; margin: 0 auto; }

.cta h2 {
  font-size: clamp(2rem, 4vw, 2.6rem);
  margin-bottom: 16px;
}

.cta p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: 40px;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* --- About Page --- */
.features-section { padding: 80px 0; }

.features-section + .features-section {
  border-top: 1px solid var(--gray-200);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 40px;
}

.feature-card {
  padding: 32px;
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  transition: all var(--transition);
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.feature-card-icon {
  width: 56px;
  height: 56px;
  background: var(--orange-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 20px;
}

.feature-card h3 { margin-bottom: 8px; color: var(--navy-700); font-size: 1.05rem; }
.feature-card p { font-size: 0.9rem; color: var(--gray-500); line-height: 1.65; }

.security-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-top: 40px;
}

.security-item {
  padding: 24px;
  background: var(--white);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--orange);
}

.security-item h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--navy-700);
}

.security-item p {
  font-size: 0.85rem;
  color: var(--gray-500);
  line-height: 1.6;
}

/* --- About Page --- */
.about-hero {
  background: linear-gradient(160deg, var(--navy-900), var(--navy-800));
  color: var(--white);
  padding: 140px 24px 80px;
  text-align: center;
}

.about-hero h1 {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  margin-bottom: 16px;
}

.about-hero p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.6);
  max-width: 600px;
  margin: 0 auto;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

@media (max-width: 768px) {
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
}

.about-text h2 { margin-bottom: 20px; color: var(--navy-700); }
.about-text p {
  color: var(--gray-500);
  line-height: 1.8;
  margin-bottom: 20px;
  font-size: 1.05rem;
}

.about-visual {
  background: linear-gradient(135deg, var(--navy-800), var(--navy-700));
  border-radius: var(--radius-xl);
  padding: 60px 40px;
  text-align: center;
  color: var(--white);
  box-shadow: var(--shadow-lg);
}

.about-visual-big {
  font-size: 80px;
  margin-bottom: 16px;
}

.about-visual h3 {
  font-size: 1.6rem;
  margin-bottom: 8px;
}

.about-visual p { color: rgba(255,255,255,0.5); font-size: 0.9rem; }

.about-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 24px;
  margin-top: 60px;
}

.about-stat {
  text-align: center;
  padding: 32px 20px;
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
}

.about-stat-value {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--orange);
  letter-spacing: -0.03em;
}

.about-stat-label {
  font-size: 0.85rem;
  color: var(--gray-500);
  margin-top: 8px;
}

/* --- Contact Page --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

@media (max-width: 768px) {
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
}

.contact-form { }

.form-group { margin-bottom: 24px; }

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 16px;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-md);
  font-size: 15px;
  font-family: var(--font);
  color: var(--gray-800);
  background: var(--white);
  transition: all var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--orange);
  box-shadow: 0 0 0 3px var(--orange-glow);
}

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

.contact-info {
  padding: 40px;
  background: var(--navy-700);
  border-radius: var(--radius-xl);
  color: var(--white);
}

.contact-info h3 {
  font-size: 1.3rem;
  margin-bottom: 24px;
}

.contact-info-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 24px;
}

.contact-info-icon {
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,0.06);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.contact-info-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: rgba(255,255,255,0.4);
  margin-bottom: 4px;
}

.contact-info-value {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.8);
}

/* --- Footer --- */
.footer {
  background: var(--navy-900);
  color: var(--white);
  padding: 64px 24px 32px;
}

.footer-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}

.footer-brand .logo { margin-bottom: 16px; }
.footer-brand p { font-size: 0.85rem; color: rgba(255,255,255,0.35); margin-top: 12px; }

.footer-heading {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  color: rgba(255,255,255,0.3);
  margin-bottom: 20px;
}

.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a {
  color: rgba(255,255,255,0.55) !important;
  font-size: 0.9rem;
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--orange) !important; }

.footer-bottom {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.25);
}

/* --- Animations --- */
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* --- Page Header (inner pages) --- */
.page-hero {
  background: linear-gradient(160deg, var(--navy-900) 0%, var(--navy-800) 50%, var(--navy-700) 100%);
  color: var(--white);
  padding: 140px 24px 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 80px;
  background: linear-gradient(to top, var(--white), transparent);
}

.page-hero-inner { max-width: 700px; margin: 0 auto; position: relative; z-index: 1; }
.page-hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 800;
  margin-bottom: 16px;
}
.page-hero p {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.6);
}

/* --- Pricing (Single Card) --- */
.pricing-single {
  max-width: 700px;
  margin: 0 auto;
}

.pricing-single-card {
  text-align: center;
  padding: 56px 48px;
  background: var(--white);
  border: 2px solid var(--orange);
  border-radius: var(--radius-xl);
  box-shadow: 0 8px 40px var(--orange-glow);
}

.pricing-single-badge {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--navy-700);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.pricing-single-desc {
  font-size: 1.05rem;
  color: var(--gray-500);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.pricing-features-box {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.pricing-features-box h3 {
  font-size: 1.3rem;
  color: var(--navy-700);
  margin-bottom: 24px;
}

.pricing-features-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
}

.pricing-features-list li {
  padding: 12px 20px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  color: var(--gray-800);
  text-align: left;
}

.pricing-features-list li::before {
  content: '✓ ';
  color: var(--orange);
  font-weight: 700;
}

@media (max-width: 480px) {
  .pricing-single-card { padding: 36px 24px; }
  .pricing-single-badge { font-size: 1.3rem; }
}

/* --- Breadcrumb --- */
.breadcrumb {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 0.85rem;
  color: var(--gray-500);
  margin-bottom: 40px;
}
.breadcrumb a { color: var(--gray-500); }
.breadcrumb a:hover { color: var(--orange); }
.breadcrumb-sep { color: var(--gray-300); }

/* ============================================
   Demo Page
   ============================================ */

.demo-hero {
  background: linear-gradient(160deg, var(--navy-900) 0%, #111c2d 30%, #0f1925 60%, var(--navy-800) 100%);
}

.demo-hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background:
    radial-gradient(circle at 15% 60%, rgba(255,153,0,0.12) 0%, transparent 40%),
    radial-gradient(circle at 50% 30%, rgba(0,120,212,0.08) 0%, transparent 40%),
    radial-gradient(circle at 85% 50%, rgba(66,133,244,0.08) 0%, transparent 40%);
}

/* Platform Cards Grid */
.demo-platform-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
  margin-top: -40px;
  position: relative;
  z-index: 2;
}

.demo-platform-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 40px 32px 32px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  text-decoration: none !important;
  color: var(--gray-800) !important;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
  isolation: isolate;
}

.demo-platform-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--accent);
  z-index: 1;
}

.demo-platform-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.15), 0 0 0 1px var(--accent);
  border-color: var(--accent);
}

.demo-platform-card:hover .demo-platform-cta {
  color: var(--accent);
  gap: 12px;
}

.demo-platform-card:hover .demo-platform-cta svg {
  transform: translateX(4px);
  color: var(--accent);
}

.demo-platform-card:hover .demo-platform-shine {
  opacity: 0.4;
}

.demo-platform-glow {
  position: absolute;
  top: -80px;
  right: -80px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  opacity: 0.04;
  transition: opacity 0.35s ease;
  pointer-events: none;
  z-index: 0;
}

.demo-platform-card:hover .demo-platform-glow {
  opacity: 0.1;
}

.demo-platform-shine {
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transform: skewX(-15deg);
  transition: left 0.6s ease;
  pointer-events: none;
  z-index: 3;
}

.demo-platform-card:hover .demo-platform-shine {
  left: 150%;
}

.demo-platform-icon {
  font-size: 48px;
  margin-bottom: 16px;
  position: relative;
  z-index: 2;
  transition: transform 0.35s ease;
}

.demo-platform-card:hover .demo-platform-icon {
  transform: scale(1.15);
}

.demo-platform-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(0,0,0,0.04);
  background: color-mix(in srgb, var(--accent) 8%, transparent);
  color: var(--accent);
  border-radius: 50px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 12px;
  position: relative;
  z-index: 2;
  width: fit-content;
}

.demo-platform-name {
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
  position: relative;
  z-index: 2;
}

.demo-platform-desc {
  font-size: 0.92rem;
  color: var(--gray-500);
  line-height: 1.65;
  margin-bottom: 24px;
  flex: 1;
  position: relative;
  z-index: 2;
}

.demo-platform-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--gray-800);
  transition: all 0.25s ease;
  position: relative;
  z-index: 2;
}

.demo-platform-cta svg {
  transition: transform 0.25s ease, color 0.25s ease;
}

/* Invite Warning Box */
.demo-invite-box {
  display: flex;
  gap: 32px;
  align-items: center;
  padding: 48px;
  background: var(--white);
  border: 2px solid var(--orange);
  border-radius: var(--radius-xl);
  box-shadow: 0 4px 24px var(--orange-glow);
  max-width: 750px;
  margin: 0 auto;
}

@media (max-width: 640px) {
  .demo-invite-box {
    flex-direction: column;
    text-align: center;
    padding: 32px 24px;
  }
}

.demo-invite-icon {
  flex-shrink: 0;
}

.demo-invite-content h3 {
  font-size: 1.25rem;
  color: var(--navy-700);
  margin-bottom: 12px;
}

.demo-invite-content p {
  color: var(--gray-500);
  line-height: 1.7;
  margin-bottom: 8px;
  font-size: 0.95rem;
}

.demo-invite-prompt {
  font-weight: 600;
  color: var(--navy-700) !important;
  margin-bottom: 20px !important;
}

/* Feature Chips */
.demo-quick-links h3 {
  color: var(--navy-700);
  margin-bottom: 24px;
  font-size: 1.2rem;
}

.demo-feature-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

.demo-chip {
  padding: 8px 18px;
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--gray-600);
  transition: all 0.2s ease;
}

.demo-chip:hover {
  background: var(--orange-light);
  border-color: var(--orange);
  color: var(--orange);
  transform: translateY(-1px);
}

/* --- Contact Form Status --- */
.contact-form-status {
  display: none;
  padding: 16px 20px;
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  font-weight: 500;
  font-size: 0.9rem;
}
.contact-form-status.is-success {
  display: block;
  background: #E8F5E9;
  border: 1px solid #C8E6C9;
  color: #1B5E20;
}
.contact-form-status.is-error {
  display: block;
  background: #FFEBEE;
  border: 1px solid #FFCDD2;
  color: #B71C1C;
}

/* Screen-reader only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* --- Scrollbar --- */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--gray-50); }
::-webkit-scrollbar-thumb { background: var(--gray-300); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--gray-500); }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .service-grid { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
  .lesson-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .section { padding: 60px 16px; }
  .hero { padding: 120px 16px 80px; }
  .hero h1 { font-size: 2rem; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .cta-actions { flex-direction: column; align-items: stretch; }
  .problem-grid { grid-template-columns: 1fr; }
  .solution-tabs { flex-wrap: wrap; }
}

/* --- Misc --- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* --- Skip link (accessibility) --- */
.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  background: var(--orange);
  color: var(--white);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  z-index: 10000;
  font-weight: 600;
  font-size: 14px;
  transition: top 0.2s;
}
.skip-link:focus { top: 8px; }