/* ============================================
   识墨 ShiMo — Brand Stylesheet
   Inspired by superr.ai design language
   ============================================ */

/* --- CSS Variables / Design Tokens --- */
:root {
  /* Colors — ink & paper palette */
  --color-bg: #faf8f5;
  --color-bg-alt: #f3efe8;
  --color-bg-card: #ffffff;
  --color-ink: #1d1d1f;
  --color-ink-light: #6e6e73;
  --color-ink-muted: #9a9a9f;
  --color-accent: #c75c2c;        /* cinnabar / vermillion */
  --color-accent-hover: #a84a22;
  --color-accent-light: #fdf0ea;
  --color-blue: #3d5a80;
  --color-blue-light: #eef3f8;
  --color-gold: #b8860b;
  --color-gold-light: #fdf6e3;
  --color-green: #2d6a4f;
  --color-green-light: #eaf5ef;
  --color-border: #e8e2d9;
  --color-shadow: rgba(29, 29, 31, 0.08);

  /* Typography */
  --font-display: "Playfair Display", "Noto Serif SC", serif;
  --font-body: "Inter", -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-handwriting: "Ma Shan Zheng", cursive;
  --font-mono: "JetBrains Mono", "Fira Code", monospace;

  /* Spacing */
  --section-padding: 120px;
  --container-width: 1200px;
  --border-radius: 16px;
  --border-radius-sm: 8px;
  --border-radius-lg: 24px;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 18px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-ink);
  line-height: 1.7;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-accent);
}

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

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: all var(--transition-smooth);
  background: transparent;
}

.nav.scrolled {
  background: rgba(250, 248, 245, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  padding: 12px 0;
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-ink);
}

.nav-logo .logo-icon {
  width: 36px;
  height: 36px;
}

.nav-logo .logo-cn {
  font-family: var(--font-display);
  font-weight: 900;
}

.nav-logo .logo-en {
  font-size: 14px;
  color: var(--color-ink-light);
  font-weight: 400;
  margin-left: 4px;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 16px;
  font-weight: 500;
  color: var(--color-ink-light);
  transition: color var(--transition-fast);
}

.nav-links a:hover {
  color: var(--color-ink);
}

/* Language Switcher */
.lang-switcher {
  position: relative;
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  background: transparent;
  font-size: 14px;
  color: var(--color-ink-light);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: var(--font-body);
}

.lang-btn:hover {
  border-color: var(--color-ink-muted);
  color: var(--color-ink);
}

.lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  box-shadow: 0 8px 30px var(--color-shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-fast);
  min-width: 140px;
  overflow: hidden;
}

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

.lang-option {
  display: block;
  width: 100%;
  padding: 10px 16px;
  border: none;
  background: none;
  text-align: left;
  font-size: 14px;
  color: var(--color-ink);
  cursor: pointer;
  transition: background var(--transition-fast);
  font-family: var(--font-body);
}

.lang-option:hover {
  background: var(--color-bg-alt);
}

.lang-option.active {
  color: var(--color-accent);
  font-weight: 600;
}

/* CTA Button */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border: none;
  border-radius: 100px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: var(--font-body);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 4px 14px rgba(199, 92, 44, 0.3);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(199, 92, 44, 0.4);
  color: #fff;
}

.btn-secondary {
  background: transparent;
  color: var(--color-ink);
  border: 1.5px solid var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-ink);
  background: var(--color-ink);
  color: #fff;
}

.btn-large {
  padding: 18px 44px;
  font-size: 18px;
}

.btn-icon {
  width: 20px;
  height: 20px;
}

/* Mobile Menu Toggle */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-ink);
  margin: 5px 0;
  transition: all var(--transition-fast);
  border-radius: 2px;
}

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

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content {
  max-width: 560px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--color-accent-light);
  color: var(--color-accent);
  border-radius: 100px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero-title {
  font-family: var(--font-display);
  font-size: 64px;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 24px;
  color: var(--color-ink);
}

.hero-title .highlight {
  color: var(--color-accent);
  position: relative;
}

.hero-title .handwriting {
  font-family: var(--font-handwriting);
  font-weight: 400;
  font-size: 72px;
}

.hero-subtitle {
  font-size: 21px;
  line-height: 1.7;
  color: var(--color-ink-light);
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  align-items: center;
}

.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}

.hero-stat-number {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 700;
  color: var(--color-ink);
}

.hero-stat-label {
  font-size: 15px;
  color: var(--color-ink-muted);
  margin-top: 4px;
}

/* Hero Visual */
.hero-visual {
  position: relative;
}

.hero-demo-card {
  background: var(--color-bg-card);
  border-radius: var(--border-radius-lg);
  box-shadow: 0 20px 60px rgba(29, 29, 31, 0.1), 0 0 0 1px rgba(29, 29, 31, 0.05);
  overflow: hidden;
  transform: perspective(1000px) rotateY(-3deg) rotateX(2deg);
  transition: transform var(--transition-smooth);
}

.hero-demo-card:hover {
  transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.demo-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 20px;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
}

.demo-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.demo-dot-red { background: #ff5f57; }
.demo-dot-yellow { background: #febc2e; }
.demo-dot-green { background: #28c840; }

.demo-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 360px;
}

.demo-left,
.demo-right {
  padding: 24px;
}

.demo-left {
  border-right: 1px solid var(--color-border);
  background: #fefcfa;
  display: flex;
  align-items: center;
  justify-content: center;
}

.demo-handwriting {
  font-family: var(--font-handwriting);
  font-size: 26px;
  line-height: 2;
  color: var(--color-ink);
  opacity: 0.85;
}

.demo-right {
  font-size: 17px;
  line-height: 2;
  color: var(--color-ink);
}

.demo-right .cursor-blink {
  display: inline-block;
  width: 2px;
  height: 18px;
  background: var(--color-accent);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.demo-arrow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  background: var(--color-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 20px;
  box-shadow: 0 4px 14px rgba(199, 92, 44, 0.4);
  z-index: 2;
}

/* Floating decorative elements */
.float-element {
  position: absolute;
  opacity: 0.6;
  animation: float 6s ease-in-out infinite;
}

.float-element:nth-child(1) { animation-delay: 0s; }
.float-element:nth-child(2) { animation-delay: 2s; }
.float-element:nth-child(3) { animation-delay: 4s; }

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
}

/* --- Section Common --- */
.section {
  padding: var(--section-padding) 0;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 64px;
}

.section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 20px;
  color: var(--color-ink-light);
  line-height: 1.7;
}

/* --- How It Works --- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  position: relative;
}

.steps::before {
  content: "";
  position: absolute;
  top: 60px;
  left: 16.66%;
  right: 16.66%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-border), var(--color-accent), var(--color-border));
  z-index: 0;
}

.step-card {
  text-align: center;
  position: relative;
  z-index: 1;
}

.step-number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 24px;
  transition: all var(--transition-smooth);
}

.step-card:nth-child(1) .step-number {
  background: var(--color-accent-light);
  color: var(--color-accent);
}

.step-card:nth-child(2) .step-number {
  background: var(--color-blue-light);
  color: var(--color-blue);
}

.step-card:nth-child(3) .step-number {
  background: var(--color-green-light);
  color: var(--color-green);
}

.step-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.step-title {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 12px;
}

.step-desc {
  font-size: 17px;
  color: var(--color-ink-light);
  line-height: 1.6;
  max-width: 280px;
  margin: 0 auto;
}

/* --- Features --- */
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 100px;
}

.feature-row:last-child {
  margin-bottom: 0;
}

.feature-row.reverse {
  direction: rtl;
}

.feature-row.reverse > * {
  direction: ltr;
}

.feature-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 16px;
}

.feature-title {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 16px;
}

.feature-desc {
  font-size: 19px;
  color: var(--color-ink-light);
  line-height: 1.7;
  margin-bottom: 24px;
}

.feature-list {
  list-style: none;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 8px 0;
  font-size: 17px;
  color: var(--color-ink);
}

.feature-list li .check {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-green-light);
  color: var(--color-green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  margin-top: 2px;
}

.feature-visual {
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: 0 16px 48px var(--color-shadow);
}

.feature-visual img {
  width: 100%;
  object-fit: cover;
}

.feature-visual-placeholder {
  width: 100%;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--color-bg-alt), var(--color-bg));
  border-radius: var(--border-radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 64px;
  border: 1px solid var(--color-border);
}

/* --- Upload / Demo Section --- */
.upload-section {
  background: var(--color-bg-alt);
}

.upload-zone {
  max-width: 640px;
  margin: 0 auto;
  background: var(--color-bg-card);
  border: 2px dashed var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: 64px 40px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-smooth);
  position: relative;
}

.upload-zone:hover,
.upload-zone.drag-over {
  border-color: var(--color-accent);
  background: var(--color-accent-light);
  transform: scale(1.01);
}

.upload-zone.drag-over {
  border-style: solid;
}

.upload-icon {
  font-size: 56px;
  margin-bottom: 20px;
}

.upload-title {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 8px;
}

.upload-desc {
  font-size: 17px;
  color: var(--color-ink-light);
  margin-bottom: 24px;
}

.upload-formats {
  display: flex;
  justify-content: center;
  gap: 12px;
}

.upload-format-tag {
  padding: 4px 12px;
  background: var(--color-bg-alt);
  border-radius: 100px;
  font-size: 13px;
  color: var(--color-ink-muted);
  font-weight: 500;
}

.upload-input {
  display: none;
}

/* Upload Progress */
.upload-progress {
  display: none;
  max-width: 640px;
  margin: 32px auto 0;
}

.upload-progress.active {
  display: block;
}

.progress-file {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--color-bg-card);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
  margin-bottom: 12px;
}

.progress-file-icon {
  font-size: 24px;
}

.progress-file-info {
  flex: 1;
}

.progress-file-name {
  font-weight: 600;
  font-size: 14px;
}

.progress-file-size {
  font-size: 13px;
  color: var(--color-ink-muted);
}

.progress-bar-wrap {
  height: 4px;
  background: var(--color-bg-alt);
  border-radius: 4px;
  margin-top: 8px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: var(--color-accent);
  border-radius: 4px;
  transition: width 0.3s ease;
  width: 0%;
}

/* --- Pricing --- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 960px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: 40px 32px;
  position: relative;
  transition: all var(--transition-smooth);
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px var(--color-shadow);
}

.pricing-card.featured {
  border-color: var(--color-accent);
  box-shadow: 0 8px 30px rgba(199, 92, 44, 0.15);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  color: #fff;
  padding: 4px 16px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
}

.pricing-name {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

.pricing-desc {
  font-size: 16px;
  color: var(--color-ink-light);
  margin-bottom: 24px;
}

.pricing-price {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 4px;
}

.pricing-price .currency {
  font-size: 24px;
  font-weight: 600;
  vertical-align: top;
  margin-right: 2px;
}

.pricing-period {
  font-size: 14px;
  color: var(--color-ink-muted);
  margin-bottom: 32px;
}

.pricing-features {
  list-style: none;
  margin-bottom: 32px;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  font-size: 16px;
  color: var(--color-ink);
}

.pricing-features .icon {
  color: var(--color-green);
  font-size: 16px;
  flex-shrink: 0;
}

.pricing-btn {
  width: 100%;
  justify-content: center;
}

/* --- FAQ --- */
.faq-list {
  max-width: 720px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 24px 0;
  background: none;
  border: none;
  font-size: 19px;
  font-weight: 600;
  color: var(--color-ink);
  cursor: pointer;
  text-align: left;
  font-family: var(--font-body);
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--color-accent);
}

.faq-chevron {
  font-size: 20px;
  transition: transform var(--transition-smooth);
  flex-shrink: 0;
  margin-left: 16px;
  color: var(--color-ink-muted);
}

.faq-item.open .faq-chevron {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-smooth);
}

.faq-answer-inner {
  padding: 0 0 24px;
  font-size: 17px;
  color: var(--color-ink-light);
  line-height: 1.7;
}

/* --- Footer --- */
.footer {
  padding: 64px 0 32px;
  border-top: 1px solid var(--color-border);
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand-desc {
  font-size: 14px;
  color: var(--color-ink-light);
  line-height: 1.7;
  margin-top: 16px;
  max-width: 300px;
}

.footer-heading {
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 16px;
  color: var(--color-ink);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  font-size: 14px;
  color: var(--color-ink-light);
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  font-size: 13px;
  color: var(--color-ink-muted);
}

.footer-social {
  display: flex;
  gap: 16px;
}

.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--color-ink-light);
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  background: var(--color-accent);
  color: #fff;
}

/* --- Scroll Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* --- Responsive Design --- */
@media (max-width: 1024px) {
  :root {
    --section-padding: 80px;
  }

  .hero-title {
    font-size: 44px;
  }

  .hero-title .handwriting {
    font-size: 50px;
  }

  .section-title {
    font-size: 36px;
  }

  .feature-title {
    font-size: 30px;
  }

  .pricing-grid {
    gap: 16px;
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 64px;
  }

  .nav-links {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }

  /* Mobile menu */
  .nav-links.mobile-open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg);
    z-index: 999;
    justify-content: center;
    align-items: center;
    gap: 24px;
  }

  .nav-links.mobile-open a {
    font-size: 24px;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

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

  .hero-title {
    font-size: 36px;
  }

  .hero-title .handwriting {
    font-size: 42px;
  }

  .hero-actions {
    justify-content: center;
    flex-wrap: wrap;
  }

  .hero-stats {
    justify-content: center;
  }

  .hero-demo-card {
    transform: none;
  }

  .steps {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .steps::before {
    display: none;
  }

  .feature-row,
  .feature-row.reverse {
    grid-template-columns: 1fr;
    gap: 32px;
    direction: ltr;
  }

  .section-title {
    font-size: 30px;
  }

  .feature-title {
    font-size: 26px;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 30px;
  }

  .hero-title .handwriting {
    font-size: 36px;
  }

  .hero-subtitle {
    font-size: 16px;
  }

  .container {
    padding: 0 16px;
  }

  .upload-zone {
    padding: 40px 24px;
  }

  .demo-body {
    grid-template-columns: 1fr;
  }

  .demo-left {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }
}