/* 
   DIGI Smart School - Design System & Custom Styles
   Register: Brand | Theme: Minimalist Editorial
   Fonts: Prata (Display), Sarabun (Body)
*/

@import url('https://fonts.googleapis.com/css2?family=Prata&family=Sarabun:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&display=swap');

:root {
  /* Design Tokens from DESIGN.md (expressed in OKLCH) */
  --color-primary: oklch(0.607 0.163 47.7);          /* Burnt Amber */
  --color-primary-hover: oklch(0.55 0.15 47.7);
  --color-neutral-bg: oklch(1.000 0.000 0.0);        /* Pure White */
  --color-neutral-surface: oklch(0.975 0.002 47.7);   /* Warm Stone */
  --color-neutral-border: oklch(0.920 0.002 47.7);    /* Thin Divider Line */
  --color-ink: oklch(0.220 0.015 47.7);               /* Obsidian Charcoal */
  --color-muted: oklch(0.550 0.010 47.7);             /* Medium Warm Gray */
  --color-accent: oklch(0.320 0.050 240.0);           /* Deep Slate Blue */
  --color-accent-light: oklch(0.950 0.010 240.0);

  /* Semantic Status Colors */
  --color-success-bg: oklch(0.950 0.020 140.0);
  --color-success-ink: oklch(0.450 0.100 140.0);
  --color-pending-bg: oklch(0.950 0.010 47.7);
  --color-pending-ink: var(--color-primary);

  /* Transparent Overlay Colors */
  --color-header-bg: oklch(1.000 0.000 0.0 / 0.9);

  /* Spacing Scale */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 48px;
  --spacing-xxl: 80px;

  /* Border Radii */
  --rounded-sm: 2px;
  --rounded-md: 4px;
  --rounded-lg: 8px;

  /* Typography Scales */
  --font-display: "Prata", "Sarabun", serif;
  --font-body: "Sarabun", sans-serif;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--color-neutral-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  line-height: 1.6;
  font-weight: 400;
  overflow-x: hidden;
}

/* Typography elements */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.15;
  color: var(--color-ink);
  text-wrap: balance;
}

h1 {
  font-size: clamp(2.25rem, 6vw, 3.75rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.75rem, 4.5vw, 2.5rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.35rem, 3vw, 1.75rem);
}

p {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-ink);
  text-wrap: pretty;
}

a {
  color: inherit;
  text-decoration: none;
  transition: opacity 0.2s ease;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 14px 32px;
  border-radius: var(--rounded-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-neutral-bg);
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-1px);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn-outline:hover {
  background-color: var(--color-accent-light);
  transform: translateY(-1px);
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.header-cta {
  padding: 10px 20px;
  font-size: 0.8rem;
  display: none;
}

@media (min-width: 768px) {
  .header-cta {
    display: inline-flex;
  }
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-lg);
  padding-right: var(--spacing-lg);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

.section {
  padding-top: 96px;
  padding-bottom: 96px;
  border-bottom: 1px solid var(--color-neutral-border);
}

.section.hero {
  padding-top: 108px;
  padding-bottom: 80px;
  border-bottom: 1px solid var(--color-neutral-border);
}

.section.challenge {
  padding-top: 80px;
  padding-bottom: 80px;
}

.section.benefits {
  padding-top: 80px;
  padding-bottom: 80px;
}

/* Header & Navigation */
.site-header {
  border-bottom: 1px solid var(--color-neutral-border);
  position: sticky;
  top: 0;
  background-color: var(--color-header-bg);
  backdrop-filter: blur(10px);
  z-index: 100;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.logo-image {
  height: 38px;
  width: auto;
  display: block;
  object-fit: contain;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: -0.01em;
}

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

.main-nav {
  display: none;
}

@media (min-width: 768px) {
  .main-nav {
    display: flex;
    gap: var(--spacing-lg);
  }
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-ink);
  opacity: 0.8;
}

.nav-link:hover {
  opacity: 1;
  color: var(--color-primary);
}

/* Mobile Nav Toggle */
.mobile-nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: none;
  border: none;
  cursor: pointer;
  width: 44px;
  height: 44px;
  padding: 0;
}

@media (min-width: 768px) {
  .mobile-nav-toggle {
    display: none;
  }
}

.burger-bar {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-ink);
  margin: 5px 0;
  transition: 0.3s;
}

/* Mobile Nav Drawer */
.mobile-nav {
  position: fixed;
  top: 80px;
  left: 0;
  width: 100%;
  height: calc(100vh - 80px);
  background-color: var(--color-neutral-bg);
  z-index: 99;
  display: flex;
  flex-direction: column;
  padding: var(--spacing-xl) var(--spacing-lg);
  gap: var(--spacing-lg);
  border-top: 1px solid var(--color-neutral-border);
  transform: translateX(100%);
  visibility: hidden;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.4s;
}

.mobile-nav.open {
  transform: translateX(0);
  visibility: visible;
}

.mobile-nav .nav-link {
  font-size: 1.5rem;
  font-family: var(--font-display);
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--color-neutral-border);
  width: 100%;
}

/* Hero Section */
.hero-header {
  margin-bottom: var(--spacing-xl);
  max-width: 900px;
}

.hero-body.grid-2 {
  align-items: start;
}

.hero-content {
  display: flex;
  flex-direction: column;
}

.hero-subtitle {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--spacing-md);
  display: block;
}

.hero h1 {
  margin-bottom: 0;
}

.hero-description {
  font-size: 1.125rem;
  color: var(--color-muted);
  margin-bottom: var(--spacing-xl);
  max-width: 580px;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

@media (max-width: 480px) {
  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }
  .hero-buttons .btn {
    width: 100%;
    text-align: center;
  }
}

.hero-image-wrapper {
  position: relative;
  border: 1px solid var(--color-neutral-border);
  padding: var(--spacing-md);
  background-color: var(--color-neutral-surface);
}

.hero-image {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

.hero-badge {
  position: absolute;
  bottom: calc(-1 * var(--spacing-md));
  right: var(--spacing-lg);
  background-color: var(--color-accent);
  color: var(--color-neutral-bg);
  padding: 12px 24px;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  border-radius: var(--rounded-sm);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

/* Problems & Opportunities Section */
.challenge {
  background-color: var(--color-neutral-surface);
}

.section-intro {
  max-width: 700px;
  margin-bottom: var(--spacing-xxl);
}

.section-intro-subtitle {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 12px;
}

.section-intro h2 {
  margin-bottom: var(--spacing-md);
}

.challenge-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

@media (min-width: 768px) {
  .challenge-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
  }
}

.challenge-column {
  background-color: var(--color-neutral-bg);
  padding: var(--spacing-xl);
  border: 1px solid var(--color-neutral-border);
}

.challenge-column-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--color-ink);
  display: inline-block;
}

.challenge-column.opportunity .challenge-column-title {
  border-bottom-color: var(--color-primary);
}

.challenge-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.challenge-item {
  display: flex;
  gap: var(--spacing-md);
}

.challenge-num {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--color-muted);
  line-height: 1.2;
}

.challenge-item-content h4 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: var(--spacing-xs);
}

.challenge-item-content p {
  font-size: 0.95rem;
  color: var(--color-muted);
}

/* Features - Interactive Section */
.features-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

@media (min-width: 992px) {
  .features-container {
    grid-template-columns: 320px 1fr;
    gap: var(--spacing-xxl);
  }
}

.features-sidebar {
  display: flex;
  flex-direction: row;
  overflow-x: auto;
  gap: var(--spacing-xs);
  padding-bottom: var(--spacing-md);
  scrollbar-width: none; /* Firefox */
}

.features-sidebar::-webkit-scrollbar {
  display: none; /* Chrome/Safari */
}

@media (min-width: 992px) {
  .features-sidebar {
    flex-direction: column;
    overflow-x: visible;
    padding-bottom: 0;
    border-right: 1px solid var(--color-neutral-border);
    padding-right: var(--spacing-lg);
  }
}

.feature-tab-btn {
  background: none;
  border: none;
  padding: 14px 20px;
  text-align: left;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-muted);
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.3s ease;
  border-bottom: 2px solid transparent;
}

@media (min-width: 992px) {
  .feature-tab-btn {
    border-bottom: none;
    border-left: 2px solid transparent;
    padding: var(--spacing-md) var(--spacing-lg);
    white-space: normal;
  }
}

.feature-tab-btn.active {
  color: var(--color-primary);
  background-color: var(--color-neutral-surface);
  border-bottom-color: var(--color-primary);
}

@media (min-width: 992px) {
  .feature-tab-btn.active {
    border-bottom-color: transparent;
    border-left-color: var(--color-primary);
  }
}

.feature-tab-btn:hover:not(.active) {
  color: var(--color-ink);
  background-color: oklch(0.99 0.001 47.7);
}

.feature-tab-btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: -2px;
}

.feature-content-panel {
  display: none;
  animation: fadeIn 0.4s ease;
}

.feature-content-panel.active {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

@media (min-width: 768px) {
  .feature-content-panel.active {
    grid-template-columns: 1.2fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
  }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.feature-details h3 {
  font-size: 1.75rem;
  margin-bottom: var(--spacing-md);
}

.feature-desc {
  font-size: 1.05rem;
  color: var(--color-muted);
  margin-bottom: var(--spacing-lg);
}

.sub-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.sub-feature-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
}

.sub-feature-bullet {
  color: var(--color-primary);
  font-size: 1.2rem;
  line-height: 1;
  margin-top: 2px;
}

.sub-feature-title {
  font-weight: 600;
  font-size: 0.95rem;
  display: block;
}

.sub-feature-desc {
  font-size: 0.9rem;
  color: var(--color-muted);
}

/* Feature Preview Screen Mockup */
.feature-screen-preview {
  background-color: var(--color-neutral-surface);
  border: 1px solid var(--color-neutral-border);
  border-radius: var(--rounded-md);
  padding: var(--spacing-md);
  min-height: 280px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
}

.preview-browser-header {
  display: flex;
  gap: 6px;
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--color-neutral-border);
  align-items: center;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-neutral-border);
}

.browser-url {
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: var(--color-muted);
  background-color: var(--color-neutral-surface);
  border: 1px solid var(--color-neutral-border);
  padding: 2px 12px;
  border-radius: 10px;
  margin-left: auto;
  margin-right: 12px;
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.preview-content {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  font-family: var(--font-body);
}

/* Screenshot Galleries */
.screenshot-gallery {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  width: 100%;
}

.screenshot-wrapper {
  background-color: var(--color-neutral-bg);
  border: 1px solid var(--color-neutral-border);
  border-radius: var(--rounded-md);
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
  transition: transform 0.2s ease;
}

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

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

.screenshot-caption {
  padding: 8px 12px;
  background-color: var(--color-neutral-surface);
  border-top: 1px solid var(--color-neutral-border);
  font-size: 0.8rem;
  color: var(--color-muted);
  text-align: center;
  font-weight: 500;
  line-height: 1.4;
}

/* Mobile Preview Mockup */
.mobile-preview-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-lg);
  border: none !important;
  background: transparent !important;
  box-shadow: none !important;
  padding: 0 !important;
}

.phone-mockup {
  width: 240px;
  border: 10px solid var(--color-ink);
  border-radius: 32px;
  background-color: var(--color-neutral-surface);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  position: relative;
}

.phone-notch {
  width: 100px;
  height: 16px;
  background-color: var(--color-ink);
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  border-bottom-left-radius: 10px;
  border-bottom-right-radius: 10px;
  z-index: 10;
}

.phone-content {
  width: 100%;
  aspect-ratio: 9 / 16;
  overflow: hidden;
}

.phone-screen {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.mobile-grid-screenshots {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-sm);
  width: 100%;
  margin-top: var(--spacing-sm);
}

.mobile-small-screenshot {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
  text-align: center;
}

.mobile-small-screenshot img {
  width: 100%;
  border: 1px solid var(--color-neutral-border);
  border-radius: var(--rounded-md);
  box-shadow: 0 4px 8px rgba(0,0,0,0.03);
}

.mobile-small-screenshot span {
  font-size: 0.75rem;
  color: var(--color-muted);
  font-weight: 500;
}

/* Benefits Section */
.benefits-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

@media (min-width: 768px) {
  .benefits-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
  }
}

.benefit-card {
  padding: var(--spacing-xl) var(--spacing-lg);
  background-color: var(--color-neutral-bg);
  border: 1px solid var(--color-neutral-border);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.benefit-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.benefit-icon-wrapper {
  margin-bottom: var(--spacing-lg);
  color: var(--color-primary);
}

.benefit-title {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1.15rem;
  margin-bottom: var(--spacing-md);
}

.benefit-desc {
  font-size: 0.95rem;
  color: var(--color-muted);
}

.benefit-bullets {
  margin-top: var(--spacing-md);
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  padding-top: var(--spacing-md);
  border-top: 1px dashed var(--color-neutral-border);
}

.benefit-bullet-item {
  font-size: 0.875rem;
  color: var(--color-ink);
  display: flex;
  gap: var(--spacing-sm);
}

.benefit-bullet-check {
  color: oklch(0.55 0.1 140);
  font-weight: bold;
}

/* Pricing Section */
.pricing {
  background-color: var(--color-neutral-surface);
}

.pricing-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  margin-top: var(--spacing-xl);
}

@media (min-width: 768px) {
  .pricing-cards {
    grid-template-columns: 1fr 1fr;
  }
}

.pricing-card {
  background-color: var(--color-neutral-bg);
  border: 1px solid var(--color-neutral-border);
  padding: var(--spacing-xl);
  display: flex;
  flex-direction: column;
  position: relative;
}

.pricing-card.featured {
  border: 2px solid var(--color-primary);
}

.pricing-tag {
  position: absolute;
  top: -12px;
  left: var(--spacing-xl);
  background-color: var(--color-primary);
  color: var(--color-neutral-bg);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 12px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.pricing-title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  margin-bottom: var(--spacing-sm);
}

.pricing-subtitle {
  font-size: 0.9rem;
  color: var(--color-muted);
  margin-bottom: var(--spacing-xl);
}

.pricing-price-box {
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-neutral-border);
}

.pricing-price {
  font-family: var(--font-display);
  font-size: 3rem;
  line-height: 1;
  color: var(--color-accent);
}

.pricing-price-period {
  font-size: 1rem;
  color: var(--color-muted);
  font-family: var(--font-body);
}

.pricing-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
  flex-grow: 1;
}

.pricing-feature {
  display: flex;
  gap: var(--spacing-sm);
  font-size: 0.95rem;
}

.pricing-check {
  color: var(--color-primary);
}

/* Contact / Request Demo Form */
.contact-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
  align-items: start;
}

@media (min-width: 992px) {
  .contact-container {
    grid-template-columns: 1fr 1.2fr;
    gap: var(--spacing-xxl);
  }
}

.contact-info h3 {
  font-size: 2rem;
  margin-bottom: var(--spacing-md);
}

.contact-info-desc {
  color: var(--color-muted);
  margin-bottom: var(--spacing-xl);
}

.contact-details-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.contact-detail-item {
  display: flex;
  gap: var(--spacing-md);
}

.contact-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-neutral-surface);
  border: 1px solid var(--color-neutral-border);
  color: var(--color-primary);
  font-size: 1.1rem;
}

.contact-label {
  font-size: 0.8rem;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.contact-val {
  font-size: 1rem;
  font-weight: 500;
}

/* Form Styling */
.demo-form {
  background-color: var(--color-neutral-surface);
  border: 1px solid var(--color-neutral-border);
  padding: var(--spacing-xl);
}

.form-group-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

@media (min-width: 768px) {
  .form-group-row {
    grid-template-columns: 1fr 1fr;
  }
}

.form-group {
  margin-bottom: var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-ink);
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  background-color: var(--color-neutral-bg);
  border: 1px solid var(--color-neutral-border);
  border-radius: var(--rounded-sm);
  color: var(--color-ink);
  transition: border-color 0.25s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-accent);
}

textarea.form-control {
  resize: vertical;
  min-height: 100px;
}

.form-success-msg {
  display: none;
  background-color: oklch(0.95 0.02 140);
  border: 1px solid oklch(0.85 0.04 140);
  color: oklch(0.35 0.06 140);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  font-size: 0.95rem;
  text-align: center;
}

/* Footer */
.site-footer {
  background-color: var(--color-ink);
  color: var(--color-neutral-bg);
  padding-top: var(--spacing-xxl);
  padding-bottom: var(--spacing-xl);
  border-top: none;
}

.site-footer p {
  color: oklch(0.75 0.01 47.7);
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
  border-bottom: 1px solid oklch(0.3 0.01 47.7);
  margin-bottom: var(--spacing-xl);
}

@media (min-width: 768px) {
  .footer-top {
    grid-template-columns: 2fr 1fr 1.2fr;
  }
}

.footer-logo-container {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.footer-logo {
  height: 48px;
  width: auto;
  display: block;
  object-fit: contain;
}

.footer-brand-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--color-neutral-bg);
}

.footer-brand p {
  font-size: 0.95rem;
  max-width: 380px;
}

.footer-links-col h5, .footer-contact-col h5 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-lg);
  color: var(--color-primary);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-link {
  font-size: 0.9rem;
  color: oklch(0.75 0.01 47.7);
}

.footer-link:hover {
  color: var(--color-neutral-bg);
}

.footer-contact-details {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  font-size: 0.9rem;
}

.footer-contact-details li {
  display: flex;
  flex-direction: column;
}

.footer-contact-label {
  font-size: 0.75rem;
  color: oklch(0.55 0.01 47.7);
  text-transform: uppercase;
}

.footer-contact-val {
  color: oklch(0.85 0.01 47.7);
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  justify-content: space-between;
  align-items: center;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
  }
}

.copyright {
  font-size: 0.85rem;
}

.developer-credit {
  font-size: 0.85rem;
}

/* Animations and Transitions */
[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .btn, .feature-tab-btn, .benefit-card {
    transition: none !important;
    transform: none !important;
  }
}