/* ===================================
   Deitalite Landing Page Styles
   ================================= */

/* 1. CSS Variables (Design Tokens) */
:root {
  /* Colors */
  --color-brand-green: #3e573c;
  --color-white: #ffffff;
  --color-off-white: #f8f9f7;
  --color-success: #27AE60;
  --color-orange: #e67e22;
  --color-blue: #3498DB;
  --color-dark-text: #2c3e50;
  --color-gray-medium: #7f8c8d;
  --color-gray-light: #ecf0f1;
  --color-footer-dark: #2c3e50;

  /* Typography */
  --font-family: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  --font-size-h1: 48px;
  --font-size-h2: 36px;
  --font-size-h3: 24px;
  --font-size-body: 18px;
  --font-size-body-large: 20px;
  --font-size-small: 14px;

  /* Spacing */
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 32px;
  --spacing-xl: 48px;
  --spacing-2xl: 64px;
  --spacing-3xl: 80px;

  /* Layout */
  --container-max-width: 1200px;
  --container-narrow: 800px;

  /* Border radius */
  --radius-sm: 6px;
  --radius-md: 8px;

  /* Shadows */
  --shadow-card: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-button: 0 4px 12px rgba(62, 87, 60, 0.25);
}

/* 2. CSS Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-body);
  line-height: 1.7;
  color: var(--color-dark-text);
  background-color: var(--color-white);
}

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

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

ul {
  list-style: none;
}

/* 3. Typography */
h1, h2, h3, h4 {
  line-height: 1.3;
  font-weight: 700;
  color: var(--color-brand-green);
}

h1 {
  font-size: var(--font-size-h1);
  line-height: 1.2;
}

h2 {
  font-size: var(--font-size-h2);
  margin-bottom: var(--spacing-md);
  text-align: center;
}

h3 {
  font-size: var(--font-size-h3);
  margin-bottom: var(--spacing-sm);
}

/* 4. Layout Utilities */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container-narrow {
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  text-align: center;
}

section {
  padding: var(--spacing-3xl) 0;
}

section:nth-child(even) {
  background-color: var(--color-off-white);
}

/* 5. Buttons */
.btn-primary {
  display: inline-block;
  background-color: var(--color-brand-green);
  color: var(--color-white);
  font-size: var(--font-size-body);
  font-weight: 600;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-button);
  transition: all 0.3s ease;
}

.btn-primary:hover {
  background-color: #2e4329;
  transform: scale(1.02);
}

.btn-secondary {
  display: inline-block;
  background-color: var(--color-gray-light);
  color: var(--color-dark-text);
  font-size: var(--font-size-body);
  font-weight: 600;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  border: 2px solid var(--color-gray-medium);
  transition: all 0.3s ease;
}

.btn-secondary:hover {
  background-color: var(--color-white);
  border-color: var(--color-brand-green);
  color: var(--color-brand-green);
  transform: scale(1.02);
}

.btn-large {
  font-size: 20px;
  padding: 18px 36px;
}

.btn-xlarge {
  font-size: 22px;
  padding: 20px 40px;
}

/* 6. Header (Sticky) */
#header {
  position: sticky;
  top: 0;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-gray-light);
  padding: var(--spacing-sm) 0;
  z-index: 1000;
}

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

.logo {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-brand-green);
}

/* 6.5. Header Right Section (Language + CTA) */
.header-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

/* Start page specific styles */
#start-hero .hero-subheadline {
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  color: var(--color-gray-medium);
  font-size: var(--font-size-body-large);
}

.start-badge {
  display: inline-block;
  margin-top: var(--spacing-sm);
  padding: 6px 12px;
  border-radius: 999px;
  background-color: var(--color-gray-light);
  color: var(--color-dark-text);
  font-size: var(--font-size-small);
}

.start-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--spacing-lg);
  align-items: flex-start;
}

.start-card {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-card);
  text-align: left;
}

.start-card h2 {
  text-align: left;
  margin-bottom: var(--spacing-sm);
}

.start-list {
  list-style: disc;
  padding-left: var(--spacing-lg);
  color: var(--color-dark-text);
}

.start-list li {
  margin-bottom: var(--spacing-sm);
}

#start-steps .steps-grid {
  margin-top: var(--spacing-lg);
}

.start-note {
  margin-top: var(--spacing-lg);
  color: var(--color-gray-medium);
}

#start-steps .hero-cta-buttons {
  justify-content: center;
  margin-top: var(--spacing-lg);
}

/* Cookie / consent banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--color-white);
  border-top: 1px solid var(--color-gray-light);
  box-shadow: 0 -2px 8px rgba(0,0,0,0.05);
  padding: var(--spacing-sm) 0;
  z-index: 2000;
  display: none;
}

.cookie-banner.visible {
  display: block;
}

.cookie-banner-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.cookie-message {
  font-size: var(--font-size-small);
  color: var(--color-gray-medium);
  text-align: left;
}

.cookie-message a {
  color: var(--color-blue);
  text-decoration: underline;
}

.cookie-actions {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.btn-small {
  font-size: var(--font-size-small);
  padding: 8px 16px;
}

@media (max-width: 768px) {
  .cookie-banner-inner {
    align-items: flex-start;
  }
}

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

/* Language Selector */
.language-selector {
  position: relative;
  display: inline-block;
}

.lang-button {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background-color: transparent;
  border: 1px solid var(--color-gray-light);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: var(--font-family);
  font-size: var(--font-size-small);
  color: var(--color-dark-text);
  transition: all 0.2s ease;
}

.lang-button:hover {
  border-color: var(--color-brand-green);
  background-color: var(--color-off-white);
}

.lang-icon {
  width: 18px;
  height: 18px;
  color: var(--color-gray-medium);
}

.chevron-icon {
  width: 16px;
  height: 16px;
  color: var(--color-gray-medium);
  transition: transform 0.2s ease;
}

.language-selector.open .chevron-icon {
  transform: rotate(180deg);
}

#current-lang {
  font-weight: 500;
}

/* Language Dropdown */
.lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-light);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  min-width: 180px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.2s ease;
  z-index: 1001;
}

.language-selector.open .lang-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  cursor: pointer;
  transition: background-color 0.2s ease;
  font-size: var(--font-size-small);
}

.lang-option:first-child {
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.lang-option:last-child {
  border-radius: 0 0 var(--radius-md) var(--radius-md);
}

.lang-option:hover {
  background-color: var(--color-off-white);
}

.lang-option.active {
  background-color: var(--color-off-white);
  font-weight: 600;
  color: var(--color-brand-green);
}

.lang-flag {
  font-size: 20px;
  line-height: 1;
}

.lang-name {
  flex: 1;
}

/* Mobile adjustments for language selector */
@media (max-width: 768px) {
  .header-right {
    gap: 8px;
  }

  .lang-button {
    padding: 6px 10px;
    font-size: 12px;
  }

  .lang-icon {
    width: 16px;
    height: 16px;
  }

  #current-lang {
    display: none;
  }

  .lang-dropdown {
    right: 0;
    left: auto;
  }
}

/* 7. USP Banner */
#usp-banner {
  background-color: var(--color-brand-green);
  color: var(--color-white);
  padding: var(--spacing-sm) 0;
  border-bottom: 2px solid rgba(0, 0, 0, 0.1);
}

.usp-items {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-xl);
  flex-wrap: wrap;
}

.usp-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-small);
  font-weight: 500;
}

.usp-icon {
  font-size: 16px;
  color: var(--color-white);
}

/* 8. Hero Section */
#hero {
  background: linear-gradient(135deg, var(--color-white) 0%, var(--color-off-white) 100%);
  padding: var(--spacing-2xl) 0;
}

#hero .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-2xl);
}

.hero-content {
  width: 100%;
  max-width: 640px;
}

.hero-content h1 {
  margin-bottom: var(--spacing-md);
}

.hero-subheadline {
  font-size: var(--font-size-body-large);
  margin-bottom: var(--spacing-lg);
  color: var(--color-dark-text);
}

.hero-benefits {
  list-style: none;
  margin: var(--spacing-lg) 0;
  padding: 0;
}

.hero-benefits li {
  font-size: var(--font-size-body);
  color: var(--color-dark-text);
  margin-bottom: var(--spacing-sm);
  padding-left: var(--spacing-lg);
  position: relative;
}

.hero-benefits li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: 700;
  font-size: 20px;
}

.hero-cta-buttons {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

.hero-trust-signal {
  font-size: var(--font-size-small);
  color: var(--color-gray-medium);
  margin-top: var(--spacing-sm);
  background-color: var(--color-primary-light);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  display: inline-block;
}

.hero-visual img {
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  width: 100%;
  max-width: 900px;
}

/* 8. Problem Section */
#problem {
  background-color: var(--color-white);
}

.problem-list {
  list-style: disc;
  padding-left: var(--spacing-lg);
  margin: var(--spacing-md) 0;
  text-align: left;
}

.problem-list li {
  margin-bottom: var(--spacing-sm);
}

.section-cta {
  text-align: center;
  margin-top: var(--spacing-lg);
}

/* 9. How It Works Section */
#how-it-works {
  background-color: var(--color-off-white);
}

.how-subtitle {
  font-size: var(--font-size-body);
  color: var(--color-gray-medium);
  text-align: center;
  margin-top: var(--spacing-sm);
  margin-bottom: 0;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.step-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-light);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-card);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  text-align: center;
}

.step-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
}

.step-number {
  width: 48px;
  height: 48px;
  background-color: var(--color-brand-green);
  color: var(--color-white);
  font-size: 24px;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-sm);
}

.step-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--spacing-sm);
  color: var(--color-brand-green);
}

.step-icon svg {
  width: 100%;
  height: 100%;
}

/* 10. Features Section */
#features {
  background-color: var(--color-white);
}

.feature-category {
  margin-top: var(--spacing-xxl);
}

.feature-category:first-of-type {
  margin-top: var(--spacing-xl);
}

.category-title {
  font-size: var(--font-size-h3);
  color: var(--color-brand-green);
  text-align: center;
  margin-bottom: var(--spacing-md);
  font-weight: 600;
  text-transform: capitalize;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.feature-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-light);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-card);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background-color: rgba(62, 87, 60, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-sm);
  color: var(--color-brand-green);
  padding: 10px;
}

.feature-icon svg {
  width: 28px;
  height: 28px;
}

/* 11. ROI Section */
#roi {
  background: linear-gradient(135deg, rgba(62, 87, 60, 0.05) 0%, var(--color-off-white) 100%);
}

.roi-subtitle {
  text-align: center;
  font-size: var(--font-size-body-large);
  margin-bottom: var(--spacing-xl);
  color: var(--color-dark-text);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.stat-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-light);
  border-left: 4px solid var(--color-success);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-card);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
}

.stat-icon {
  width: 48px;
  height: 48px;
  color: var(--color-success);
  margin-bottom: var(--spacing-sm);
}

.stat-icon svg {
  width: 100%;
  height: 100%;
}

.stat-number-inline {
  display: block;
  font-size: 48px;
  font-weight: 700;
  color: var(--color-brand-green);
  margin-bottom: var(--spacing-xs);
}

.stat-card h3 {
  text-align: left;
  margin-bottom: var(--spacing-md);
}

.roi-example-label {
  text-align: center;
  font-size: var(--font-size-small);
  font-weight: 600;
  color: var(--color-gray-medium);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--spacing-xs);
  margin-top: var(--spacing-lg);
}

.roi-example {
  text-align: center;
  font-size: var(--font-size-body-large);
  font-weight: 600;
  color: var(--color-brand-green);
}

/* 12. Pricing Section */
#pricing {
  background-color: var(--color-white);
}

.pricing-card {
  max-width: 600px;
  margin: var(--spacing-xl) auto 0;
  background-color: var(--color-white);
  border: 2px solid var(--color-brand-green);
  border-radius: var(--radius-md);
  padding: var(--spacing-xl);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(62, 87, 60, 0.15);
}

.badge {
  display: inline-block;
  background-color: var(--color-orange);
  color: var(--color-white);
  font-size: var(--font-size-small);
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: var(--spacing-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.price {
  margin: var(--spacing-md) 0;
}

.price-large {
  font-size: 64px;
  font-weight: 700;
  color: var(--color-brand-green);
}

.price-period {
  font-size: 24px;
  color: var(--color-gray-medium);
}

.price-regular {
  display: block;
  font-size: 20px;
  color: var(--color-gray-medium);
  text-decoration: line-through;
  margin-top: var(--spacing-xs);
}

.pricing-features {
  text-align: left;
  margin: var(--spacing-lg) 0;
}

.pricing-features li {
  padding: var(--spacing-xs) 0;
  font-size: var(--font-size-body);
}

.pricing-footer {
  font-size: var(--font-size-small);
  color: var(--color-gray-medium);
  margin-top: var(--spacing-sm);
}

.pricing-renewal {
  font-size: var(--font-size-small);
  color: var(--color-gray-medium);
  margin-top: var(--spacing-xs);
  font-style: italic;
}

/* 13. FAQ Section */
#faq {
  background-color: var(--color-off-white);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.faq-item {
  text-align: left;
  border: 1px solid var(--color-gray-light);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  background-color: white;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.faq-item:hover {
  border-color: var(--color-brand-green);
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  text-align: left;
  gap: var(--spacing-md);
}

.faq-question h3 {
  color: var(--color-brand-green);
  margin: 0;
  flex: 1;
}

.faq-icon {
  font-size: 24px;
  font-weight: 300;
  color: var(--color-brand-green);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
  max-height: 1000px;
  margin-top: var(--spacing-sm);
}

.faq-answer p {
  margin: 0;
}

.faq-item a {
  color: var(--color-blue);
  text-decoration: underline;
}

/* 14. Final CTA Section */
#final-cta {
  background-color: var(--color-brand-green);
  color: var(--color-white);
  text-align: center;
}

#final-cta h2,
#final-cta p {
  color: var(--color-white);
}

#final-cta .btn-primary {
  background-color: var(--color-white);
  color: var(--color-brand-green);
  margin: var(--spacing-md) 0;
}

#final-cta .btn-primary:hover {
  background-color: var(--color-off-white);
}

.cta-urgency {
  font-size: var(--font-size-small);
  opacity: 0.9;
}

/* 15. Footer */
#footer {
  background-color: var(--color-footer-dark);
  color: var(--color-white);
  padding: var(--spacing-xl) 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-col h4 {
  color: var(--color-white);
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-body);
}

.footer-col ul li {
  margin-bottom: var(--spacing-xs);
}

.footer-col a {
  color: var(--color-white);
  opacity: 0.8;
  transition: opacity 0.3s ease;
}

.footer-col a:hover {
  opacity: 1;
}

.footer-note {
  font-size: var(--font-size-small);
  opacity: 0.8;
  margin-top: var(--spacing-xs);
}

.footer-cta {
  text-align: center;
  padding: var(--spacing-xl) 0 var(--spacing-lg) 0;
  margin-top: var(--spacing-lg);
  border-top: 1px solid rgba(255,255,255,0.2);
}

.footer-cta h3 {
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-h3);
}

.footer-cta .btn-primary {
  background-color: var(--color-white);
  color: var(--color-footer-dark);
}

.footer-cta .btn-primary:hover {
  background-color: var(--color-off-white);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-sm);
  border-top: 1px solid rgba(255,255,255,0.2);
  font-size: var(--font-size-small);
}

/* 16. Animations */
.animate {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* 17. Mobile Responsive */
@media (max-width: 768px) {
  /* Typography adjustments */
  :root {
    --font-size-h1: 32px;
    --font-size-h2: 28px;
    --font-size-h3: 20px;
    --spacing-3xl: 48px;
  }

  /* Container padding */
  .container,
  .container-narrow {
    padding: 0 var(--spacing-sm);
  }

  /* Hero: stack columns */
  #hero .container {
    grid-template-columns: 1fr;
  }

  .hero-cta-buttons {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  /* Steps: stack */
  .steps-grid {
    grid-template-columns: 1fr;
  }

  /* Features: single column */
  .features-grid {
    grid-template-columns: 1fr;
  }

  /* Stats: stack */
  .stats-grid {
    grid-template-columns: 1fr;
  }

  /* FAQ: single column */
  .faq-grid {
    grid-template-columns: 1fr;
  }

  /* Footer: stack */
  .footer-grid {
    grid-template-columns: 1fr;
  }

  /* Button sizes */
  .btn-large {
    font-size: 18px;
    padding: 16px 28px;
  }

  .btn-xlarge {
    font-size: 20px;
    padding: 18px 32px;
  }

  /* Pricing card */
  .price-large {
    font-size: 48px;
  }

  /* Stat numbers */
  .stat-number-inline {
    font-size: 36px;
  }
}

/* 18. Print Styles */
@media print {
  #header,
  #final-cta,
  #footer {
    display: none;
  }
}