/* Root variables for Fintech Modern & Clean concept */
:root {
  --primary: #4F46E5; /* Indigo Blue */
  --primary-hover: #4338CA;
  --primary-light: #EEF2FF;
  --bg-main: #F9FAFB; /* Light Grey */
  --text-main: #111827; /* Charcoal Black */
  --text-muted: #4B5563; /* Muted Grey */
  --text-light: #9CA3AF;
  --card-bg: #FFFFFF;
  --border-color: #E5E7EB;
  --border-focus: #818CF8;
  --success: #10B981;
  --danger: #EF4444;
  --danger-light: #FEE2E2;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
  --shadow-premium: 0 20px 40px -15px rgba(79, 70, 229, 0.08);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --font-main: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, 'Helvetica Neue', 'Segoe UI', 'Apple SD Gothic Neo', 'Noto Sans KR', 'Malgun Gothic', sans-serif;
}

/* Base resets & layout */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
}

/* App Header Styling (Mobile-First: compact) */
.app-header {
  background-color: var(--card-bg);
  border-bottom: 1px solid var(--border-color);
  padding: 20px 16px;
  text-align: center;
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
}

.logo-area {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 4px;
}

.logo-icon {
  width: 32px;
  height: 32px;
}

.logo-title {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.logo-badge {
  background-color: var(--primary-light);
  color: var(--primary);
  font-size: 10px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.5px;
}

.header-subtitle {
  color: var(--text-muted);
  font-size: 13.5px;
  font-weight: 400;
}

/* Navigation Bar (Mobile-First: flexible wrap & compact pills) */
.app-nav {
  display: flex;
  justify-content: center;
  gap: 4px;
  margin-top: 14px;
  flex-wrap: wrap;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 16px;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  border: 1px solid transparent;
}

.nav-link:hover {
  color: var(--primary);
  background-color: var(--primary-light);
  border-color: rgba(79, 70, 229, 0.1);
}

.nav-link.active {
  color: var(--primary);
  background-color: var(--primary-light);
  border-color: rgba(79, 70, 229, 0.2);
  box-shadow: 0 2px 4px rgba(79, 70, 229, 0.05);
}

/* Main Container Layout (Mobile-First: single column) */
.main-container {
  display: flex;
  flex-direction: column;
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 16px 60px 16px;
  flex: 1;
}

/* Sections */
.form-section {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.preview-section {
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: static; /* Mobile: scroll naturally */
}

/* Card Common Styling (Mobile-First: compact padding) */
.card {
  background-color: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(0, 0, 0, 0.02);
  padding: 20px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  box-shadow: var(--shadow-premium), var(--shadow-lg);
}

/* Card active indicator */
.card-active {
  border-left: 5px solid var(--primary);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.step-badge {
  background-color: var(--primary);
  color: #FFFFFF;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 13px;
  flex-shrink: 0;
}

.card-header h2 {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.4px;
}

.card-desc {
  color: var(--text-muted);
  font-size: 13px;
  margin-bottom: 18px;
}

/* Forms & Inputs (Mobile-First: stack in column by default) */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.form-group:last-child {
  margin-bottom: 0;
}

.form-group-row {
  display: flex;
  flex-direction: column; /* Stack vertically on small screens */
  gap: 12px;
  margin-bottom: 16px;
}

.flex-1 {
  flex: 1;
}

label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-main);
}

input[type="text"],
input[type="number"],
select {
  font-family: inherit;
  font-size: 15px;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--border-color);
  background-color: var(--bg-main);
  color: var(--text-main);
  outline: none;
  transition: all 0.2s ease;
  width: 100%;
}

input[type="text"]:focus,
input[type="number"]:focus,
select:focus {
  border-color: var(--border-focus);
  background-color: #FFFFFF;
  box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.12);
}

/* Custom Select Dropdown Styling */
.custom-select-wrapper {
  position: relative;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  border: none;
  text-decoration: none;
}

.btn-large {
  padding: 16px 24px;
  font-size: 16px;
}

.btn-block {
  display: flex;
  width: 100%;
}

.btn-primary {
  background-color: var(--primary);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.25);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(79, 70, 229, 0.35);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background-color: var(--primary-light);
  color: var(--primary);
}

.btn-secondary:hover {
  background-color: #E0E7FF;
  transform: translateY(-1px);
}

.btn-danger-light {
  background-color: var(--danger-light);
  color: var(--danger);
  padding: 6px 12px;
  font-size: 12px;
  border-radius: var(--radius-sm);
  border: none;
  outline: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-danger-light:hover {
  background-color: #FCA5A5;
  color: #7F1D1D;
}

/* Tag/Chip Input Container */
.tag-input-container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--border-color);
  background-color: var(--bg-main);
  min-height: 52px;
  transition: all 0.2s ease;
}

.tag-input-container:focus-within {
  border-color: var(--border-focus);
  background-color: #FFFFFF;
  box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.12);
}

.tag-input-container input {
  border: none;
  background: transparent;
  outline: none;
  padding: 4px 0;
  font-size: 15px;
  flex-grow: 1;
  min-width: 120px;
  color: var(--text-main);
}

.tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background-color: var(--primary-light);
  color: var(--primary);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  animation: popIn 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.tag-chip-remove {
  cursor: pointer;
  font-weight: 700;
  color: var(--text-light);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  transition: all 0.15s ease;
}

.tag-chip-remove:hover {
  background-color: rgba(79, 70, 229, 0.15);
  color: var(--primary);
}

.quick-add-info {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Dynamic Round Cards */
.round-card {
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 18px;
  margin-bottom: 16px;
  background-color: #FFFFFF;
  animation: slideDown 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
}

.round-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.round-card-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Round Members Selection UI */
.member-pool-area {
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.member-pool-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
}

.member-pool-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.pool-member-chip {
  cursor: pointer;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
  background-color: var(--bg-main);
  border: 1px solid var(--border-color);
  transition: all 0.2s ease;
  user-select: none;
}

.pool-member-chip.selected {
  background-color: var(--primary);
  color: #FFFFFF;
  border-color: var(--primary);
  font-weight: 600;
}

.pool-member-chip:hover {
  transform: translateY(-1px);
}

/* Member Pool Select All / Deselect All Buttons */
.btn-pool-action {
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background-color: var(--bg-main);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
}

.btn-pool-action:hover {
  background-color: var(--border-color);
  color: var(--primary);
  border-color: var(--primary-light);
}

.btn-pool-action:active {
  transform: scale(0.95);
}

/* Style Selector Option (Mobile-First: 1 column, list-style) */
.style-selector {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  margin-top: 8px;
}

.style-option {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: flex-start;
  gap: 14px;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px 20px;
  cursor: pointer;
  transition: all 0.25s ease;
  text-align: left;
}

.style-option input[type="radio"] {
  display: none;
}

.style-option .style-icon {
  font-size: 22px;
  transition: transform 0.2s ease;
}

.style-option .style-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
}

.style-option:hover {
  border-color: var(--border-focus);
}

.style-option:hover .style-icon {
  transform: scale(1.1);
}

.style-option.active {
  border-color: var(--primary);
  background-color: var(--primary-light);
}

.style-option.active .style-name {
  color: var(--primary);
  font-weight: 700;
}

/* Hidden elements */
.hidden {
  display: none !important;
}

/* Phone Mockup Screen (Mobile-First: scalable, responsive width) */
.phone-mockup {
  background-color: #111827; /* Dark shell */
  border-radius: 32px;
  padding: 10px;
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.15);
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
  border: 3px solid #374151;
  position: relative;
}

.phone-speaker {
  width: 50px;
  height: 4px;
  background-color: #374151;
  border-radius: 2px;
  position: absolute;
  top: 5px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
}

.phone-screen {
  background-color: #BACEE0; /* KakaoTalk Style */
  border-radius: 24px;
  overflow: hidden;
  height: 460px;
  display: flex;
  flex-direction: column;
  position: relative;
}

.phone-status-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 14px;
  font-size: 11px;
  color: #374151;
  font-weight: 600;
  background-color: rgba(255, 255, 255, 0.15);
}

.phone-status-bar .status-icons {
  display: flex;
  gap: 4px;
}

.phone-chat-header {
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  padding: 10px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  font-weight: 700;
  color: var(--text-main);
}

.chat-back {
  font-size: 11px;
  cursor: pointer;
}

.chat-menu {
  font-size: 13px;
  cursor: pointer;
}

.phone-chat-body {
  flex: 1;
  padding: 12px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Chat Scrollbar Styling */
.phone-chat-body::-webkit-scrollbar {
  width: 4px;
}

.phone-chat-body::-webkit-scrollbar-thumb {
  background-color: rgba(0, 0, 0, 0.2);
  border-radius: 4px;
}

.chat-date {
  align-self: center;
  background-color: rgba(0, 0, 0, 0.08);
  color: #FFFFFF;
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 10px;
  margin-bottom: 6px;
}

.chat-bubble-wrapper {
  display: flex;
  gap: 6px;
  align-items: flex-start;
}

.chat-avatar {
  width: 28px;
  height: 28px;
  border-radius: 10px;
  background-color: #E2E8F0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #64748B;
  flex-shrink: 0;
}

.chat-message-content {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
}

.chat-sender-name {
  font-size: 10px;
  color: #4A5568;
  font-weight: 600;
  margin-left: 2px;
}

.chat-bubble {
  background-color: #FFFFFF;
  border-radius: 0 12px 12px 12px;
  padding: 10px 12px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
  max-width: 250px;
  font-size: 12px;
  color: #000000;
  line-height: 1.5;
  margin-top: 0;
  position: relative;
}

.chat-bubble::after {
  content: '';
  position: absolute;
  left: -5px;
  top: 0;
  width: 0;
  height: 0;
  border-top: 0px solid transparent;
  border-bottom: 6px solid transparent;
  border-right: 5px solid #FFFFFF;
}

#template-text-preview {
  font-family: inherit;
  white-space: pre-wrap;
  word-break: break-all;
}

/* Action card below preview */
.preview-actions-card {
  background-color: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 20px;
}

.summary-info-box {
  background-color: var(--primary-light);
  border-radius: var(--radius-md);
  padding: 14px;
  margin-bottom: 16px;
}

.summary-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
}

.summary-desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Toast Notification styling */
#toast-container {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 1000;
  width: 90%;
  max-width: 320px;
}

.toast {
  background-color: var(--text-main);
  color: #FFFFFF;
  padding: 12px 20px;
  border-radius: 25px;
  font-size: 13px;
  font-weight: 600;
  text-align: center;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
  animation: toastFadeIn 0.3s cubic-bezier(0.16, 1, 0.3, 1), toastFadeOut 0.3s cubic-bezier(0.16, 1, 0.3, 1) 2.2s forwards;
}

/* Keyframes animations */
@keyframes popIn {
  0% { transform: scale(0.9); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

@keyframes slideDown {
  0% { transform: translateY(-10px); opacity: 0; }
  100% { transform: translateY(0); opacity: 1; }
}

@keyframes toastFadeIn {
  0% { transform: translateY(20px); opacity: 0; }
  100% { transform: translateY(0); opacity: 1; }
}

@keyframes toastFadeOut {
  0% { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(-20px); opacity: 0; }
}

/* Footer (Mobile-First) */
.app-footer {
  text-align: center;
  padding: 24px 16px;
  color: var(--text-light);
  font-size: 11px;
  border-top: 1px solid var(--border-color);
  background-color: var(--card-bg);
  margin-top: auto;
}

.footer-inquiry {
  margin-top: 6px;
  font-size: 11px;
  color: var(--text-muted);
}

.footer-inquiry a {
  color: var(--primary);
  text-decoration: underline;
  font-weight: 500;
  transition: color 0.15s;
}

.footer-inquiry a:hover {
  color: var(--primary-hover);
}

/* Info Pages Layout (Mobile-First: compact) */
.info-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 20px 16px 60px 16px;
  flex: 1;
}

.info-hero {
  text-align: center;
  padding: 36px 16px;
  background: linear-gradient(135deg, var(--primary) 0%, #6366F1 100%);
  color: #FFFFFF;
  border-radius: var(--radius-lg);
  margin-bottom: 20px;
  box-shadow: 0 10px 20px -5px rgba(79, 70, 229, 0.15);
  border: 1px solid rgba(79, 70, 229, 0.2);
}

.info-hero h2 {
  font-size: 24px;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 8px;
  letter-spacing: -0.5px;
}

.info-hero p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.9);
  max-width: 500px;
  margin: 0 auto;
}

.info-section {
  background-color: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 20px;
  margin-bottom: 20px;
  border: 1px solid rgba(0, 0, 0, 0.01);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.info-section:hover {
  box-shadow: var(--shadow-premium), var(--shadow-lg);
}

.info-section h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-left: 4px solid var(--primary);
  padding-left: 10px;
}

.info-section p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 12px;
  word-break: keep-all;
}

.info-section p:last-child {
  margin-bottom: 0;
}

.info-section ul, .info-section ol {
  margin-left: 18px;
  margin-bottom: 16px;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.7;
}

.info-section li {
  margin-bottom: 8px;
}

.info-section strong {
  color: var(--text-main);
}

/* Feature Grid (Mobile-First: 1 column) */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 16px;
  margin-bottom: 16px;
}

.feature-box {
  background-color: var(--bg-main);
  padding: 18px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--border-color);
  transition: all 0.25s ease;
}

.feature-box:hover {
  border-color: var(--border-focus);
  background-color: #FFFFFF;
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.feature-box-icon {
  font-size: 24px;
  margin-bottom: 8px;
}

.feature-box h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 6px;
}

.feature-box p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 0;
}

/* Tutorial Steps */
.tutorial-steps {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 16px;
}

.tutorial-step {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px;
  background-color: var(--bg-main);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.tutorial-num {
  background-color: var(--primary-light);
  color: var(--primary);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 13px;
  flex-shrink: 0;
}

.tutorial-content h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 2px;
}

.tutorial-content p {
  font-size: 12.5px;
  color: var(--text-muted);
  margin-bottom: 0;
  line-height: 1.5;
}

.cta-block {
  text-align: center;
  margin-top: 32px;
}

/* Privacy Table Styling */
.privacy-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
  margin-bottom: 18px;
  font-size: 12.5px;
}

.privacy-table th, .privacy-table td {
  border: 1px solid var(--border-color);
  padding: 8px 10px;
  text-align: left;
}

.privacy-table th {
  background-color: var(--bg-main);
  font-weight: 600;
  color: var(--text-main);
}

.privacy-table td {
  color: var(--text-muted);
}


/* ==========================================================================
   Media Queries (Responsive Scaling: Mobile-First)
   ========================================================================== */

/* Tablet and wider devices (min-width: 600px) */
@media (min-width: 600px) {
  .form-group-row {
    flex-direction: row;
    gap: 16px;
    margin-bottom: 20px;
  }

  .style-selector {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }

  .style-option {
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 20px 10px;
  }

  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
}

/* Medium screens & Desktop scaling (min-width: 768px) */
@media (min-width: 768px) {
  .app-header {
    padding: 24px 20px;
  }

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

  .header-subtitle {
    font-size: 15px;
  }

  .nav-link {
    font-size: 14px;
    padding: 8px 18px;
    border-radius: 20px;
    gap: 6px;
  }

  .card {
    padding: 32px;
  }

  .card-header h2 {
    font-size: 20px;
  }

  .card-desc {
    font-size: 14px;
    margin-bottom: 24px;
  }

  .phone-mockup {
    max-width: 380px;
    border-radius: 40px;
    padding: 14px;
    border: 4px solid #374151;
  }

  .phone-speaker {
    width: 60px;
    height: 4px;
    border-radius: 2px;
    top: 6px;
  }

  .phone-screen {
    height: 520px;
    border-radius: 28px;
  }

  .phone-chat-header {
    padding: 12px 16px;
  }

  .chat-back { font-size: 12px; }
  .chat-menu { font-size: 14px; }

  .phone-chat-body {
    padding: 16px;
    gap: 12px;
  }

  .chat-bubble {
    font-size: 12.5px;
    max-width: 270px;
    padding: 14px;
  }

  .app-footer {
    padding: 32px 20px;
    font-size: 13px;
  }

  /* Info Pages */
  .info-container {
    padding: 40px 20px 80px 20px;
  }

  .info-hero {
    padding: 50px 30px;
    margin-bottom: 36px;
  }

  .info-hero h2 {
    font-size: 32px;
  }

  .info-hero p {
    font-size: 16px;
  }

  .info-section {
    padding: 40px;
    margin-bottom: 28px;
  }

  .info-section h3 {
    font-size: 22px;
    margin-bottom: 18px;
    padding-left: 12px;
  }

  .info-section p {
    font-size: 15.5px;
    margin-bottom: 18px;
  }

  .info-section ul, .info-section ol {
    margin-left: 20px;
    margin-bottom: 20px;
    font-size: 15.5px;
  }

  .feature-box {
    padding: 24px;
  }

  .feature-box-icon {
    font-size: 28px;
    margin-bottom: 12px;
  }

  .feature-box h4 {
    font-size: 17px;
    margin-bottom: 8px;
  }

  .feature-box p {
    font-size: 13.5px;
  }

  .tutorial-step {
    padding: 16px;
    gap: 16px;
  }

  .tutorial-num {
    width: 32px;
    height: 32px;
    font-size: 14px;
  }

  .tutorial-content h4 {
    font-size: 16px;
    margin-bottom: 4px;
  }

  .tutorial-content p {
    font-size: 13.5px;
  }

  .privacy-table {
    font-size: 14px;
  }

  .privacy-table th, .privacy-table td {
    padding: 12px;
  }
}

/* Wide screen layouts (min-width: 992px) */
@media (min-width: 992px) {
  .main-container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 36px;
    padding: 36px 20px 80px 20px;
  }

  .preview-section {
    position: sticky;
    top: 36px;
    height: fit-content;
  }
}

/* ==========================================================================
   Info Page — Enhanced Components (Mobile-First)
   ========================================================================== */

/* Page breadcrumb / back button row */
.page-back-row {
  display: flex;
  align-items: center;
  margin-bottom: 16px;
}

.btn-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 20px;
  border: 1px solid var(--border-color);
  background-color: var(--card-bg);
  transition: all 0.2s ease;
  cursor: pointer;
}

.btn-back:hover {
  color: var(--primary);
  border-color: var(--primary);
  background-color: var(--primary-light);
}

.btn-back svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

/* Highlight callout box (inline notice) */
.highlight-box {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  background: var(--primary-light);
  border: 1.5px solid rgba(79, 70, 229, 0.18);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  margin: 16px 0;
}

.highlight-box .hb-icon {
  font-size: 18px;
  flex-shrink: 0;
  margin-top: 1px;
}

.highlight-box p {
  font-size: 13.5px !important;
  color: #3730A3 !important;
  margin: 0 !important;
  line-height: 1.6 !important;
  font-weight: 500;
}

.highlight-box strong {
  color: var(--primary) !important;
}

/* Security / trust badge strip */
.trust-strip {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 16px 0;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background: var(--bg-main);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.trust-item .trust-icon {
  font-size: 20px;
  flex-shrink: 0;
}

.trust-item p {
  font-size: 13px !important;
  color: var(--text-muted) !important;
  margin: 0 !important;
}

.trust-item strong {
  display: block;
  font-size: 13.5px;
  color: var(--text-main) !important;
  margin-bottom: 1px;
}

/* Value cards (about page 3-value section) */
.value-cards {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 16px;
}

.value-card {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 16px;
  background: var(--bg-main);
  border-radius: var(--radius-md);
  border: 1.5px solid var(--border-color);
  transition: all 0.22s ease;
}

.value-card:hover {
  border-color: var(--border-focus);
  background: #FFFFFF;
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.value-card-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.value-card-body h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}

.value-card-body p {
  font-size: 13px !important;
  color: var(--text-muted) !important;
  line-height: 1.55 !important;
  margin: 0 !important;
}

/* Privacy article clause header */
.clause-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}

.clause-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  flex-shrink: 0;
}

.clause-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
}

/* Info-section compact variant (privacy clauses) */
.info-section.compact {
  padding: 16px;
  margin-bottom: 12px;
}

/* CTA section redesign */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, #6366F1 100%);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  margin-top: 24px;
}

.cta-section h3 {
  font-size: 18px;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 8px;
  letter-spacing: -0.3px;
}

.cta-section p {
  font-size: 13.5px;
  color: rgba(255,255,255,0.85);
  margin-bottom: 20px;
}

.btn-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: #FFFFFF;
  color: var(--primary);
  font-family: inherit;
  font-size: 15px;
  font-weight: 700;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 14px rgba(0,0,0,0.15);
}

.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
  background: #F5F3FF;
}

.btn-cta svg {
  width: 16px;
  height: 16px;
}

/* Section divider label */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--primary);
  background: var(--primary-light);
  padding: 4px 10px;
  border-radius: 12px;
  margin-bottom: 8px;
}

/* Privacy table mobile scroll wrapper */
.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-sm);
  margin-top: 12px;
  margin-bottom: 16px;
  border: 1px solid var(--border-color);
}

.privacy-table {
  min-width: 480px;
  margin: 0;
  border: none;
}

.privacy-table th, .privacy-table td {
  border: none;
  border-bottom: 1px solid var(--border-color);
  padding: 10px 12px;
}

.privacy-table tr:last-child td {
  border-bottom: none;
}

.privacy-table th {
  background-color: var(--bg-main);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.3px;
  color: var(--text-main);
}

.privacy-table td {
  font-size: 13px;
  color: var(--text-muted);
}

/* Footer link row */
.footer-links {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.footer-links a {
  color: var(--text-light);
  text-decoration: none;
  font-size: 11px;
  transition: color 0.15s;
}

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

/* ==========================================================================
   Media Query Upgrades for new info-page components
   ========================================================================== */

@media (min-width: 600px) {
  .trust-strip {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .trust-item {
    flex: 1 1 calc(50% - 10px);
  }

  .value-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .value-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
}

@media (min-width: 768px) {
  .cta-section {
    padding: 40px 32px;
  }

  .cta-section h3 {
    font-size: 22px;
  }

  .cta-section p {
    font-size: 15px;
  }

  .btn-cta {
    font-size: 16px;
    padding: 16px 36px;
  }

  .value-card-body h4 {
    font-size: 15px;
  }

  .value-card-body p {
    font-size: 13.5px !important;
  }

  .info-section.compact {
    padding: 24px 32px;
    margin-bottom: 16px;
  }
}