/* ============================================
   Skalar — Global Styles
   ============================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --nav-height: 72px;
  --container-max: 1200px;
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.3s ease;
}

[data-theme="dark"] {
  --bg-primary: #0A1628;
  --bg-secondary: #111D32;
  --bg-card: #162038;
  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --accent: #2563EB;
  --accent-hover: #3B82F6;
  --accent-green: #10B981;
  --border: #1E3A5F;
  --input-bg: #1A2740;
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-card-hover: 0 8px 40px rgba(37, 99, 235, 0.15);
  --glow: 0 0 20px rgba(37, 99, 235, 0.3);
  --nav-bg: rgba(10, 22, 40, 0.85);
}

[data-theme="light"] {
  --bg-primary: #FFFFFF;
  --bg-secondary: #F8FAFC;
  --bg-card: #FFFFFF;
  --text-primary: #0F172A;
  --text-secondary: #64748B;
  --accent: #2563EB;
  --accent-hover: #1D4ED8;
  --accent-green: #059669;
  --border: #E2E8F0;
  --input-bg: #F1F5F9;
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.08);
  --shadow-card-hover: 0 8px 40px rgba(0, 0, 0, 0.12);
  --glow: none;
  --nav-bg: rgba(255, 255, 255, 0.85);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: var(--font-primary);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  transition: background-color var(--transition), color var(--transition);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
}

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

/* ---------- Container ---------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Typography ---------- */
.section-label {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto;
}

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

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: 0.9375rem;
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: var(--glow);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.4);
}

.btn-lg {
  padding: 14px 32px;
  font-size: 1.0625rem;
  border-radius: var(--radius);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.8125rem;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius-sm);
}

.btn-sm:hover {
  background: var(--accent-hover);
}

/* ============================================
   Navigation
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  transition: background-color var(--transition), box-shadow var(--transition);
}

.navbar.scrolled {
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--border);
}

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

.nav-logo {
  display: flex;
  align-items: center;
  z-index: 1001;
}

.logo-img {
  height: 26px;
  width: auto;
  transition: filter var(--transition);
}

[data-theme="dark"] .logo-img {
  filter: brightness(0) invert(1);
}

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

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition);
  position: relative;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition);
}

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

.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-controls-mobile {
  display: none;
}

/* Language Switcher */
.lang-switcher {
  display: flex;
  gap: 4px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 2px;
}

.lang-btn {
  font-family: var(--font-primary);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 8px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}

.lang-btn:hover {
  color: var(--text-primary);
}

.lang-btn.active {
  background: var(--accent);
  color: #fff;
}

/* Theme Toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  cursor: pointer;
  transition: all var(--transition);
  color: var(--text-secondary);
}

.theme-toggle:hover {
  color: var(--text-primary);
  border-color: var(--accent);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
  transition: opacity var(--transition), transform var(--transition);
}

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

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

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

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

/* CTA in Nav */
.nav-cta {
  font-size: 0.8125rem;
  padding: 8px 20px;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1001;
  padding: 6px;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg canvas {
  width: 100%;
  height: 100%;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 24px;
  max-width: 800px;
}

.hero-logo {
  display: flex;
  justify-content: center;
  margin-bottom: 32px;
}

.hero-logo-img {
  width: clamp(280px, 40vw, 480px);
  height: auto;
  transition: filter var(--transition);
}

[data-theme="dark"] .hero-logo-img {
  filter: brightness(0) invert(1);
}

.hero-headline {
  font-size: clamp(2.5rem, 7vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2.5vw, 1.35rem);
  color: var(--text-secondary);
  margin-bottom: 40px;
  line-height: 1.6;
}

.hero-cta {
  margin-bottom: 0;
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  animation: bounce 2s infinite;
}

.hero-scroll svg {
  width: 28px;
  height: 28px;
  color: var(--text-secondary);
  opacity: 0.5;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ============================================
   Sections
   ============================================ */
.section {
  padding: 100px 0;
  background-color: var(--bg-primary);
  transition: background-color var(--transition);
}

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

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

/* ============================================
   About Section
   ============================================ */
.about-content {
  max-width: 800px;
  margin: 0 auto;
}

.about-text p {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
  line-height: 1.8;
}

.about-quote {
  margin-top: 40px;
  padding: 32px;
  border-left: 3px solid var(--accent);
  background: var(--bg-card);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.about-quote p {
  font-size: 1.125rem;
  font-style: italic;
  line-height: 1.7;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.about-quote cite {
  font-style: normal;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent);
}

/* ============================================
   Cards Grid (What We Do)
   ============================================ */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: all var(--transition);
  box-shadow: var(--shadow-card);
}

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

.card-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(37, 99, 235, 0.1);
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
}

.card-icon svg {
  width: 24px;
  height: 24px;
  color: var(--accent);
}

.card-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.card-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================
   Badges Grid (Who We Serve)
   ============================================ */
.badges-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.badge-card {
  text-align: center;
  padding: 40px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  transition: all var(--transition);
}

.badge-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--accent);
}

.badge-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  background: rgba(37, 99, 235, 0.1);
  border-radius: 50%;
}

.badge-icon svg {
  width: 28px;
  height: 28px;
  color: var(--accent);
}

.badge-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.badge-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Dual Path Section (1% / 99%) */
.dual-path-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.stat-intro {
  text-align: center;
  padding: 40px 32px 32px;
}

.stat-intro p {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.7;
}

.dual-path-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border-top: 1px solid var(--border);
}

.dual-path-card {
  position: relative;
  padding: 36px 32px;
  background: var(--bg-card);
  transition: all var(--transition);
}

.dual-path-card:hover {
  background: var(--bg-secondary);
}

.dual-path-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  min-height: 48px;
  max-width: 48px;
  max-height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  margin-bottom: 20px;
  overflow: hidden;
}

.dual-path-accent .dual-path-icon {
  background: rgba(37, 99, 235, 0.1);
  color: var(--accent);
}

.dual-path-green .dual-path-icon {
  background: rgba(16, 185, 129, 0.1);
  color: var(--accent-green);
}

.dual-path-icon svg {
  width: 24px;
  height: 24px;
  min-width: 24px;
  min-height: 24px;
  max-width: 24px;
  max-height: 24px;
  flex-shrink: 0;
}

.dual-path-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 16px;
}

.dual-path-accent .dual-path-label {
  background: rgba(37, 99, 235, 0.1);
  color: var(--accent);
}

.dual-path-green .dual-path-label {
  background: rgba(16, 185, 129, 0.1);
  color: var(--accent-green);
}

.dual-path-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.dual-path-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================
   Comparison Grid (Why Skalar)
   ============================================ */
.comparison-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.comparison-card {
  text-align: center;
  padding: 40px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  transition: all var(--transition);
}

.comparison-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--accent);
}

.comparison-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  background: rgba(37, 99, 235, 0.1);
  border-radius: 50%;
}

.comparison-icon svg {
  width: 28px;
  height: 28px;
  color: var(--accent);
}

.comparison-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.comparison-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================
   Contact Form
   ============================================ */
.contact-form {
  max-width: 600px;
  margin: 0 auto;
}

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

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-primary);
  font-size: 0.9375rem;
  color: var(--text-primary);
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-secondary);
  opacity: 0.6;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-group.error input,
.form-group.error textarea {
  border-color: #EF4444;
}

.form-error {
  display: none;
  font-size: 0.8125rem;
  color: #EF4444;
  margin-top: 6px;
}

.form-group.error .form-error {
  display: block;
}

.form-submit {
  width: 100%;
}

.form-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.form-message {
  display: none;
  text-align: center;
  padding: 24px;
  border-radius: var(--radius);
  margin-top: 24px;
}

.form-message.visible {
  display: block;
}

.form-success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid var(--accent-green);
}

.form-success svg {
  width: 40px;
  height: 40px;
  color: var(--accent-green);
  margin-bottom: 12px;
}

.form-success h3 {
  color: var(--accent-green);
  margin-bottom: 8px;
}

.form-success p {
  color: var(--text-secondary);
}

.form-error-msg {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid #EF4444;
}

.form-error-msg p {
  color: #EF4444;
}

/* ============================================
   Footer
   ============================================ */
.footer {
  padding: 48px 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  transition: background-color var(--transition), border-color var(--transition);
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.footer-logo {
  height: 22px;
  width: auto;
  opacity: 0.7;
  transition: filter var(--transition);
}

[data-theme="dark"] .footer-logo {
  filter: brightness(0) invert(1);
}

.footer-rights {
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.footer-email {
  font-size: 0.875rem;
  color: var(--accent);
  transition: color var(--transition);
}

.footer-email:hover {
  color: var(--accent-hover);
}

/* ============================================
   Cookie Notice
   ============================================ */
.cookie-notice {
  position: fixed;
  bottom: 24px;
  left: 24px;
  right: 24px;
  max-width: 480px;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  z-index: 999;
  transform: translateY(120%);
  transition: transform 0.4s ease, background-color var(--transition), border-color var(--transition);
}

.cookie-notice.visible {
  transform: translateY(0);
}

.cookie-notice p {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  flex: 1;
}

/* ============================================
   Scroll Animations
   ============================================ */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.cards-grid .animate-on-scroll:nth-child(2) { transition-delay: 0.1s; }
.cards-grid .animate-on-scroll:nth-child(3) { transition-delay: 0.2s; }
.cards-grid .animate-on-scroll:nth-child(4) { transition-delay: 0.3s; }

.badges-grid .animate-on-scroll:nth-child(2) { transition-delay: 0.1s; }
.badges-grid .animate-on-scroll:nth-child(3) { transition-delay: 0.2s; }

.comparison-grid .animate-on-scroll:nth-child(2) { transition-delay: 0.1s; }
.comparison-grid .animate-on-scroll:nth-child(3) { transition-delay: 0.2s; }

/* ============================================
   Responsive — Tablet
   ============================================ */
@media (max-width: 960px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    flex-direction: column;
    justify-content: center;
    gap: 24px;
    background: var(--bg-primary);
    padding: 24px;
    transition: right var(--transition);
    border-left: 1px solid var(--border);
    z-index: 1000;
  }

  .nav-links.open {
    right: 0;
  }

  .nav-link {
    font-size: 1.125rem;
  }

  .nav-controls-mobile {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
  }

  .nav-right .lang-switcher,
  .nav-right .theme-toggle,
  .nav-right .nav-cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .badges-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 48px;
  }

  .dual-path-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
  }

  .comparison-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }

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

/* ============================================
   Responsive — Mobile
   ============================================ */
@media (max-width: 640px) {
  :root {
    --nav-height: 64px;
  }

  .section {
    padding: 72px 0;
  }

  .section-header {
    margin-bottom: 40px;
  }

  .hero-logo {
    margin-bottom: 24px;
  }

  .hero-logo-img {
    width: clamp(200px, 60vw, 300px);
  }

  .hero-headline {
    font-size: clamp(2rem, 9vw, 3rem);
  }

  .hero-subtitle {
    font-size: 1rem;
    margin-bottom: 32px;
  }

  .about-quote {
    padding: 24px;
  }

  .card {
    padding: 24px;
  }

  .container {
    padding: 0 16px;
  }

  .cookie-notice {
    flex-direction: column;
    left: 12px;
    right: 12px;
    text-align: center;
  }
}

/* ============================================
   Overlay for mobile nav
   ============================================ */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 999;
}

.nav-overlay.active {
  display: block;
}