/**
 * MetaScrub Material Design 3 (M3) + Apple Aesthetics Design System
 * Dynamic Blue Palette (Deep Sapphire / Electric Azure)
 * Full RTL/LTR Bi-directional Engine & Responsive Fluid Breakpoints
 */

@import url('https://fonts.googleapis.com/css2?family=Vazirmatn:wght@100;200;300;400;500;600;700;800;900&display=swap');

/* ============================================================
   M3 Design Tokens & CSS Variables (Blue Palette)
============================================================ */
:root {
  /* Universal Vazirmatn Typography for entire project */
  --app-font: 'Vazirmatn', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* MD3 Blue Tonal Palette (Dark by default - Apple Dark Sapphire) */
  --md-sys-color-primary: #9ECAFF;
  --md-sys-color-on-primary: #003258;
  --md-sys-color-primary-container: #00497D;
  --md-sys-color-on-primary-container: #D1E4FF;
  --md-sys-color-secondary: #BBC7DB;
  --md-sys-color-on-secondary: #253140;
  --md-sys-color-secondary-container: #3B4858;
  --md-sys-color-on-secondary-container: #D7E3F7;
  --md-sys-color-tertiary: #D7BEE4;
  --md-sys-color-on-tertiary: #3B2948;
  
  --md-sys-color-background: #080E1A;
  --md-sys-color-on-background: #E2E2E9;
  --md-sys-color-surface: #0E1626;
  --md-sys-color-on-surface: #E2E2E9;
  --md-sys-color-surface-variant: #16223B;
  --md-sys-color-on-surface-variant: #C2C7CF;
  
  --md-sys-color-surface-container-lowest: #050912;
  --md-sys-color-surface-container-low: #0D1627;
  --md-sys-color-surface-container: #131F36;
  --md-sys-color-surface-container-high: #1A2947;
  --md-sys-color-surface-container-highest: #233457;
  
  --md-sys-color-outline: #2E3E5E;
  --md-sys-color-outline-variant: #1B273F;
  --md-sys-color-shadow: rgba(0, 0, 0, 0.45);
  
  --md-sys-color-error: #FFB4AB;
  --md-sys-color-on-error: #690005;
  --md-sys-color-success: #78DC77;
  --md-sys-color-warning: #FFBA3B;
  
  /* Apple Glass & Elevation */
  --glass-bg: rgba(14, 22, 38, 0.72);
  --glass-border: rgba(158, 202, 255, 0.12);
  --glass-glow: rgba(0, 97, 164, 0.25);
  --navbar-blur: blur(24px) saturate(180%);
  
  /* Corner Radii */
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-standard: all 0.28s cubic-bezier(0.2, 0, 0, 1);
  --transition-spring: all 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Light Theme Variables */
[data-theme="light"] {
  --md-sys-color-primary: #0061A4;
  --md-sys-color-on-primary: #FFFFFF;
  --md-sys-color-primary-container: #D1E4FF;
  --md-sys-color-on-primary-container: #001D36;
  --md-sys-color-secondary: #535F70;
  --md-sys-color-on-secondary: #FFFFFF;
  --md-sys-color-secondary-container: #D7E3F7;
  --md-sys-color-on-secondary-container: #101C2B;
  
  --md-sys-color-background: #F4F7FC;
  --md-sys-color-on-background: #191C20;
  --md-sys-color-surface: #FFFFFF;
  --md-sys-color-on-surface: #191C20;
  --md-sys-color-surface-variant: #DFE2EB;
  --md-sys-color-on-surface-variant: #43474E;
  
  --md-sys-color-surface-container-lowest: #FFFFFF;
  --md-sys-color-surface-container-low: #EFF3FA;
  --md-sys-color-surface-container: #E7ECF5;
  --md-sys-color-surface-container-high: #E0E6F0;
  --md-sys-color-surface-container-highest: #D8E0EC;
  
  --md-sys-color-outline: #C3C7D2;
  --md-sys-color-outline-variant: #E0E3EB;
  --md-sys-color-shadow: rgba(0, 40, 85, 0.08);
  
  --md-sys-color-error: #BA1A1A;
  --md-sys-color-success: #1E8E3E;
  --md-sys-color-warning: #B37400;
  
  --glass-bg: rgba(255, 255, 255, 0.82);
  --glass-border: rgba(0, 97, 164, 0.12);
  --glass-glow: rgba(0, 97, 164, 0.1);
}

/* ============================================================
   Base Resets & 100% Vazirmatn Universal Font Everywhere
============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
  font-family: var(--app-font) !important;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  height: 100%;
  max-width: 100%;
  overflow-x: hidden;
  font-family: var(--app-font) !important;
}

body {
  font-family: var(--app-font) !important;
  background-color: var(--md-sys-color-background);
  color: var(--md-sys-color-on-background);
  min-height: 100vh;
  line-height: 1.65;
  display: flex;
  flex-direction: column;
  max-width: 100%;
  overflow-x: hidden;
  position: relative;
  background-image: 
    radial-gradient(circle at 15% 10%, rgba(0, 97, 164, 0.18) 0%, transparent 45%),
    radial-gradient(circle at 85% 60%, rgba(30, 136, 229, 0.12) 0%, transparent 50%);
  background-attachment: fixed;
  transition: background-color 0.3s ease, color 0.3s ease;
}

body.ltr-mode {
  direction: ltr;
  text-align: left;
  font-family: var(--app-font) !important;
}

body.rtl-mode {
  direction: rtl;
  text-align: right;
  font-family: var(--app-font) !important;
}

button, input, select, textarea, summary {
  font-family: var(--app-font) !important;
}

a {
  color: var(--md-sys-color-primary);
  text-decoration: none;
  transition: var(--transition-standard);
}

a:hover {
  text-decoration: underline;
}

/* ============================================================
   App Layout & Grid
============================================================ */
.app-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  flex: 1;
  box-sizing: border-box;
}

@media (max-width: 768px) {
  .app-container {
    padding: 0 14px;
  }
}

@media (max-width: 480px) {
  .app-container {
    padding: 0 10px;
  }
}

/* ============================================================
   Header & Navbar (Frosted Glass Apple-Style)
============================================================ */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--glass-bg);
  backdrop-filter: var(--navbar-blur);
  -webkit-backdrop-filter: var(--navbar-blur);
  border-bottom: 1px solid var(--glass-border);
  transition: var(--transition-standard);
  width: 100%;
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-sizing: border-box;
}

@media (max-width: 480px) {
  .nav-inner {
    padding: 8px 12px;
  }
  .brand-logo-img {
    width: 36px;
    height: 36px;
  }
  .brand-name {
    font-size: 1.1rem;
  }
  .header-actions {
    gap: 6px;
  }
  .btn-icon, .btn-tonal {
    padding: 6px 10px;
    font-size: 0.78rem;
  }
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-logo-img {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  object-fit: cover;
  box-shadow: 0 4px 14px var(--glass-glow);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  flex-shrink: 0;
}

.brand-logo-img:hover {
  transform: scale(1.06) rotate(-2deg);
}

.brand-titles {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--md-sys-color-on-surface);
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

/* M3 Icon & Tonal Buttons */
.btn-icon, .btn-tonal {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-full);
  border: 1px solid var(--md-sys-color-outline-variant);
  background: var(--md-sys-color-surface-container);
  color: var(--md-sys-color-on-surface);
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-standard);
  user-select: none;
  white-space: nowrap;
}

.btn-icon:hover, .btn-tonal:hover {
  background: var(--md-sys-color-surface-container-high);
  border-color: var(--md-sys-color-primary);
  transform: translateY(-1px);
}

.btn-icon:active, .btn-tonal:active {
  transform: scale(0.97);
}

/* ============================================================
   Hero Section
============================================================ */
.hero-section {
  text-align: center;
  padding: 48px 0 28px;
  width: 100%;
}

@media (max-width: 600px) {
  .hero-section {
    padding: 28px 0 16px;
  }
}

.hero-badges-row {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

@media (max-width: 600px) {
  .hero-badges-row {
    gap: 6px;
    margin-bottom: 14px;
  }
}

.hero-pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  background: var(--md-sys-color-surface-container-high);
  border: 1px solid var(--md-sys-color-outline-variant);
  color: var(--md-sys-color-primary);
  text-align: center;
  line-height: 1.4;
}

@media (max-width: 600px) {
  .hero-pill-badge {
    padding: 4px 10px;
    font-size: 0.72rem;
  }
}

.hero-title {
  font-size: clamp(1.45rem, 4.2vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.8px;
  line-height: 1.3;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--md-sys-color-on-background) 30%, var(--md-sys-color-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  word-break: break-word;
}

.hero-desc {
  max-width: 680px;
  margin: 0 auto;
  font-size: 1.05rem;
  color: var(--md-sys-color-on-surface-variant);
  line-height: 1.8;
  word-break: break-word;
}

@media (max-width: 600px) {
  .hero-desc {
    font-size: 0.88rem;
    line-height: 1.65;
  }
}

/* ============================================================
   M3 Dropzone (Elevated Card with Pulsing Aperture)
============================================================ */
.dropzone-container {
  margin: 28px auto 40px;
  max-width: 860px;
  width: 100%;
}

@media (max-width: 600px) {
  .dropzone-container {
    margin: 18px auto 26px;
  }
}

.m3-dropzone {
  background: var(--md-sys-color-surface-container-low);
  border: 2px dashed var(--md-sys-color-outline);
  border-radius: var(--radius-lg);
  padding: 56px 24px;
  text-align: center;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: var(--transition-spring);
  box-shadow: 0 10px 30px var(--md-sys-color-shadow);
  box-sizing: border-box;
  width: 100%;
}

@media (max-width: 600px) {
  .m3-dropzone {
    padding: 34px 14px;
    border-radius: var(--radius-md);
  }
}

.m3-dropzone:hover {
  border-color: var(--md-sys-color-primary);
  background: var(--md-sys-color-surface-container);
  transform: translateY(-3px);
  box-shadow: 0 16px 40px var(--glass-glow);
}

.m3-dropzone.dragover {
  border-color: var(--md-sys-color-primary);
  background: var(--md-sys-color-surface-container-highest);
  transform: scale(1.015);
}

.dropzone-icon-box {
  width: 76px;
  height: 76px;
  margin: 0 auto 18px;
  border-radius: var(--radius-md);
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  box-shadow: 0 8px 24px var(--glass-glow);
  transition: transform 0.3s ease;
}

@media (max-width: 600px) {
  .dropzone-icon-box {
    width: 58px;
    height: 58px;
    font-size: 1.7rem;
    margin-bottom: 12px;
  }
}

.m3-dropzone:hover .dropzone-icon-box {
  transform: rotate(5deg) scale(1.08);
}

.dropzone-heading {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--md-sys-color-on-surface);
  margin-bottom: 8px;
  word-break: break-word;
}

@media (max-width: 600px) {
  .dropzone-heading {
    font-size: 1.05rem;
  }
}

.dropzone-subtext {
  font-size: 0.92rem;
  color: var(--md-sys-color-on-surface-variant);
  margin-bottom: 16px;
  word-break: break-word;
}

@media (max-width: 600px) {
  .dropzone-subtext {
    font-size: 0.82rem;
    margin-bottom: 12px;
  }
}

.dropzone-formats-badge {
  display: inline-block;
  padding: 6px 16px;
  background: var(--md-sys-color-surface-container-high);
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  color: var(--md-sys-color-primary);
  font-weight: 600;
  line-height: 1.5;
  word-break: break-word;
}

@media (max-width: 600px) {
  .dropzone-formats-badge {
    padding: 4px 10px;
    font-size: 0.72rem;
  }
}

.hidden-file-input {
  display: none;
}

/* ============================================================
   Workspace & Forensic Inspector (MD3 Cards)
============================================================ */
.workspace-wrapper {
  display: none;
  animation: m3FadeUp 0.4s cubic-bezier(0.2, 0, 0, 1);
  margin-bottom: 50px;
  width: 100%;
}

.workspace-wrapper.active {
  display: block;
}

@keyframes m3FadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Batch Queue Bar */
.batch-queue-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: var(--md-sys-color-surface-container);
  border-radius: var(--radius-md);
  border: 1px solid var(--md-sys-color-outline-variant);
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
  width: 100%;
  box-sizing: border-box;
}

@media (max-width: 680px) {
  .batch-queue-bar {
    flex-direction: column;
    align-items: flex-start;
    padding: 12px 14px;
    gap: 10px;
  }
}

.batch-info {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  font-size: 0.95rem;
}

.batch-thumbs-strip {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  max-width: 500px;
  padding: 4px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

@media (max-width: 680px) {
  .batch-thumbs-strip {
    width: 100%;
    max-width: 100%;
  }
}

.thumb-chip {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-xs);
  border: 2px solid transparent;
  cursor: pointer;
  object-fit: cover;
  transition: var(--transition-standard);
  opacity: 0.7;
  flex-shrink: 0;
}

.thumb-chip:hover, .thumb-chip.active {
  border-color: var(--md-sys-color-primary);
  opacity: 1;
  transform: scale(1.08);
}

/* Forensic Two-Column Grid */
.forensic-grid {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 24px;
  margin-bottom: 24px;
  width: 100%;
  min-width: 0;
}

@media (max-width: 960px) {
  .forensic-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

.m3-card {
  background: var(--md-sys-color-surface-container);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: 0 4px 16px var(--md-sys-color-shadow);
  display: flex;
  flex-direction: column;
  min-width: 0;
  width: 100%;
  box-sizing: border-box;
}

@media (max-width: 600px) {
  .m3-card {
    padding: 16px 12px;
    border-radius: var(--radius-sm);
  }
}

.m3-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
  min-width: 0;
}

.m3-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--md-sys-color-on-surface);
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  word-break: break-word;
}

/* Image Preview Container */
.preview-stage {
  width: 100%;
  height: 280px;
  max-height: 45vh;
  min-height: 180px;
  border-radius: var(--radius-sm);
  background: var(--md-sys-color-surface-container-lowest);
  border: 1px solid var(--md-sys-color-outline-variant);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  margin-bottom: 18px;
  box-sizing: border-box;
}

@media (max-width: 600px) {
  .preview-stage {
    height: 220px;
    margin-bottom: 14px;
  }
}

.preview-stage img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: transform 0.3s ease;
}

.file-spec-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  background: var(--md-sys-color-surface-container-low);
  padding: 14px;
  border-radius: var(--radius-sm);
  font-size: 0.84rem;
  min-width: 0;
  width: 100%;
  box-sizing: border-box;
}

@media (max-width: 520px) {
  .file-spec-grid {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 12px 10px;
  }
  .file-spec-grid .file-spec-item[style*="grid-column"] {
    grid-column: span 1 !important;
  }
}

.file-spec-item {
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
}

.file-spec-label {
  color: var(--md-sys-color-on-surface-variant);
  font-size: 0.76rem;
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-spec-value {
  color: var(--md-sys-color-on-surface);
  font-weight: 600;
  word-break: break-all;
  overflow-wrap: anywhere;
}

/* Risk Assessment Banner */
.risk-banner {
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  margin-bottom: 18px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.88rem;
  transition: var(--transition-standard);
  min-width: 0;
  word-break: break-word;
  overflow-wrap: anywhere;
  box-sizing: border-box;
}

@media (max-width: 600px) {
  .risk-banner {
    padding: 12px 14px;
    font-size: 0.82rem;
    margin-bottom: 14px;
  }
}

.risk-banner.risk-high {
  background: rgba(255, 180, 171, 0.12);
  border: 1px solid rgba(255, 180, 171, 0.4);
  color: var(--md-sys-color-error);
}

.risk-banner.risk-medium {
  background: rgba(255, 186, 59, 0.12);
  border: 1px solid rgba(255, 186, 59, 0.4);
  color: var(--md-sys-color-warning);
}

.risk-banner.risk-safe {
  background: rgba(120, 220, 119, 0.12);
  border: 1px solid rgba(120, 220, 119, 0.4);
  color: var(--md-sys-color-success);
}

/* Category Filter Tabs */
.meta-filter-tabs {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  overflow-x: auto;
  padding-bottom: 6px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  min-width: 0;
  width: 100%;
}

.meta-filter-tabs::-webkit-scrollbar {
  display: none;
}

.m3-filter-chip {
  padding: 6px 14px;
  border-radius: var(--radius-full);
  border: 1px solid var(--md-sys-color-outline-variant);
  background: var(--md-sys-color-surface-container-low);
  color: var(--md-sys-color-on-surface-variant);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition-standard);
  flex-shrink: 0;
}

@media (max-width: 600px) {
  .m3-filter-chip {
    padding: 5px 12px;
    font-size: 0.76rem;
  }
}

.m3-filter-chip:hover {
  background: var(--md-sys-color-surface-container-high);
}

.m3-filter-chip.active {
  background: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
  border-color: var(--md-sys-color-primary);
}

/* Metadata List */
.meta-records-list {
  flex: 1;
  max-height: 400px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-inline-end: 4px;
  min-width: 0;
  width: 100%;
  box-sizing: border-box;
}

.meta-record-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--md-sys-color-surface-container-low);
  border-radius: var(--radius-xs);
  font-size: 0.84rem;
  gap: 12px;
  border-inline-start: 3px solid var(--md-sys-color-primary);
  min-width: 0;
  width: 100%;
  box-sizing: border-box;
  transition: background-color 0.2s ease;
}

.meta-record-key {
  color: var(--md-sys-color-on-surface-variant);
  font-weight: 600;
  max-width: 48%;
  word-break: break-word;
  overflow-wrap: anywhere;
  min-width: 0;
}

.meta-record-val {
  color: var(--md-sys-color-on-surface);
  font-weight: 700;
  text-align: end;
  word-break: break-all;
  overflow-wrap: anywhere;
  min-width: 0;
  max-width: 52%;
}

@media (max-width: 640px) {
  .meta-record-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding: 10px 12px;
  }
  .meta-record-key {
    max-width: 100%;
    font-size: 0.78rem;
    color: var(--md-sys-color-primary);
  }
  .meta-record-val {
    text-align: start;
    max-width: 100%;
    width: 100%;
    font-size: 0.84rem;
  }
}

.meta-empty-state {
  text-align: center;
  padding: 40px 10px;
  color: var(--md-sys-color-on-surface-variant);
}

/* ============================================================
   Method Selection Cards
============================================================ */
.methods-box {
  margin-bottom: 24px;
  width: 100%;
}

.methods-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  width: 100%;
}

@media (max-width: 768px) {
  .methods-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}

.method-radio-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px;
  border-radius: var(--radius-md);
  background: var(--md-sys-color-surface-container);
  border: 2px solid var(--md-sys-color-outline-variant);
  cursor: pointer;
  transition: var(--transition-standard);
  position: relative;
  min-width: 0;
  box-sizing: border-box;
}

@media (max-width: 600px) {
  .method-radio-card {
    padding: 14px;
    gap: 10px;
  }
}

.method-radio-card:hover {
  border-color: var(--md-sys-color-primary);
  background: var(--md-sys-color-surface-container-high);
}

.method-radio-card.selected {
  border-color: var(--md-sys-color-primary);
  background: rgba(0, 97, 164, 0.12);
  box-shadow: 0 4px 20px var(--glass-glow);
}

.method-radio-card input {
  display: none;
}

.method-radio-dot {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid var(--md-sys-color-outline);
  margin-top: 2px;
  position: relative;
  flex-shrink: 0;
  transition: var(--transition-standard);
}

.method-radio-card.selected .method-radio-dot {
  border-color: var(--md-sys-color-primary);
}

.method-radio-card.selected .method-radio-dot::after {
  content: '';
  position: absolute;
  inset: 3px;
  border-radius: 50%;
  background: var(--md-sys-color-primary);
}

.method-content-title {
  font-size: 0.96rem;
  font-weight: 700;
  color: var(--md-sys-color-on-surface);
  margin-bottom: 4px;
  word-break: break-word;
}

@media (max-width: 600px) {
  .method-content-title {
    font-size: 0.9rem;
  }
}

.method-content-desc {
  font-size: 0.8rem;
  color: var(--md-sys-color-on-surface-variant);
  line-height: 1.55;
  word-break: break-word;
}

/* ============================================================
   Action Buttons & Progress Bar
============================================================ */
.actions-container {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 24px;
  width: 100%;
}

@media (max-width: 768px) {
  .actions-container {
    flex-direction: column;
    gap: 10px;
  }
}

.btn-filled-primary {
  flex: 1;
  min-width: 240px;
  padding: 16px 32px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--md-sys-color-primary) 0%, #1976D2 100%);
  color: var(--md-sys-color-on-primary);
  border: none;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(0, 97, 164, 0.35);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: var(--transition-spring);
  box-sizing: border-box;
}

@media (max-width: 768px) {
  .btn-filled-primary {
    width: 100%;
    min-width: 0;
    padding: 14px 20px;
    font-size: 0.94rem;
  }
}

.btn-filled-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0, 97, 164, 0.5);
}

.btn-filled-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn-outlined {
  padding: 15px 26px;
  border-radius: var(--radius-full);
  background: transparent;
  color: var(--md-sys-color-on-surface);
  border: 1px solid var(--md-sys-color-outline);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-standard);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-sizing: border-box;
}

@media (max-width: 768px) {
  .btn-outlined {
    width: 100%;
    min-width: 0;
    padding: 13px 20px;
    font-size: 0.9rem;
  }
}

.btn-outlined:hover {
  background: var(--md-sys-color-surface-container);
  border-color: var(--md-sys-color-primary);
}

.m3-progress-track {
  width: 100%;
  height: 6px;
  background: var(--md-sys-color-surface-container-high);
  border-radius: var(--radius-full);
  overflow: hidden;
  display: none;
  margin-bottom: 24px;
}

.m3-progress-track.active {
  display: block;
}

.m3-progress-indicator {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--md-sys-color-primary), #64B5F6);
  border-radius: var(--radius-full);
  transition: width 0.35s ease;
}

/* ============================================================
   Results & Forensic Audit Summary
============================================================ */
.results-card {
  display: none;
  background: linear-gradient(135deg, rgba(120, 220, 119, 0.08), rgba(0, 97, 164, 0.08));
  border: 1px solid rgba(120, 220, 119, 0.35);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  animation: m3FadeUp 0.4s ease;
  margin-bottom: 30px;
  box-sizing: border-box;
  width: 100%;
}

.results-card.active {
  display: block;
}

@media (max-width: 640px) {
  .results-card {
    padding: 20px 14px;
    border-radius: var(--radius-md);
  }
}

.success-badge-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(120, 220, 119, 0.18);
  color: var(--md-sys-color-success);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 16px;
  animation: scalePop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@media (max-width: 600px) {
  .success-badge-icon {
    width: 52px;
    height: 52px;
    font-size: 1.6rem;
    margin-bottom: 12px;
  }
}

@keyframes scalePop {
  0% { transform: scale(0); }
  100% { transform: scale(1); }
}

.results-heading {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--md-sys-color-success);
  margin-bottom: 6px;
  word-break: break-word;
}

@media (max-width: 600px) {
  .results-heading {
    font-size: 1.15rem;
  }
}

.results-subtitle {
  font-size: 0.92rem;
  color: var(--md-sys-color-on-surface-variant);
  margin-bottom: 24px;
  word-break: break-word;
}

@media (max-width: 600px) {
  .results-subtitle {
    font-size: 0.82rem;
    margin-bottom: 16px;
  }
}

.stats-grid-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 24px;
  width: 100%;
}

.stat-chip {
  background: var(--md-sys-color-surface-container);
  border: 1px solid var(--md-sys-color-outline-variant);
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  box-sizing: border-box;
}

.stat-chip strong {
  color: var(--md-sys-color-primary);
}

@media (max-width: 640px) {
  .stats-grid-strip {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-bottom: 18px;
  }
  .stat-chip {
    padding: 8px 10px;
    font-size: 0.78rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    word-break: break-all;
  }
}

@media (max-width: 360px) {
  .stats-grid-strip {
    grid-template-columns: 1fr;
  }
}

.results-actions-row {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  width: 100%;
}

@media (max-width: 640px) {
  .results-actions-row {
    flex-direction: column;
    gap: 10px;
  }
  .results-actions-row button {
    width: 100%;
    min-width: 0;
    justify-content: center;
  }
}

/* ============================================================
   Footer (Dedicated Roino Coffee Brand Box)
============================================================ */
.app-footer {
  background: var(--md-sys-color-surface-container-lowest);
  border-top: 1px solid var(--md-sys-color-outline-variant);
  padding: 40px 20px 32px;
  margin-top: auto;
  text-align: center;
}

.footer-content {
  max-width: 800px;
  margin: 0 auto;
}

.roino-brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 24px;
  background: var(--md-sys-color-surface-container);
  border: 1px solid var(--md-sys-color-outline);
  border-radius: var(--radius-full);
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--md-sys-color-on-surface);
  box-shadow: 0 4px 16px var(--md-sys-color-shadow);
  margin-bottom: 16px;
  transition: var(--transition-standard);
  text-decoration: none;
}

.roino-brand-badge:hover {
  transform: translateY(-2px);
  border-color: var(--md-sys-color-primary);
  box-shadow: 0 8px 24px var(--glass-glow);
  text-decoration: none;
}

.roino-brand-badge .coffee-icon {
  font-size: 1.35rem;
  display: inline-block;
  animation: coffeeSteam 3s infinite ease-in-out;
}

@keyframes coffeeSteam {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-4px) rotate(4deg); }
}

.roino-brand-badge .roino-footer-link {
  color: var(--md-sys-color-primary);
  font-weight: 800;
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: var(--transition-standard);
}

.roino-brand-badge .roino-footer-link:hover {
  color: #64B5F6;
}

.roino-brand-badge .roino-link-text {
  color: var(--md-sys-color-primary);
  font-weight: 800;
}

.footer-tagline-text {
  font-size: 0.88rem;
  color: var(--md-sys-color-on-surface-variant);
  margin-bottom: 8px;
}

.footer-privacy-text {
  font-size: 0.78rem;
  color: var(--md-sys-color-outline);
}

/* ============================================================
   Toast Notification (Floating M3 Snackbar)
============================================================ */
.m3-toast {
  position: fixed;
  bottom: 24px;
  inset-inline-end: 24px;
  background: var(--md-sys-color-surface-container-highest);
  color: var(--md-sys-color-on-surface);
  border: 1px solid var(--md-sys-color-outline);
  padding: 14px 22px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: 0 12px 36px var(--md-sys-color-shadow);
  transform: translateY(160%);
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 12px;
}

.m3-toast.show {
  transform: translateY(0);
}

.m3-toast.toast-error {
  border-color: var(--md-sys-color-error);
  color: var(--md-sys-color-error);
}

.m3-toast.toast-success {
  border-color: var(--md-sys-color-success);
}

/* ============================================================
   SEO Rich Content, Features & FAQ Sections (Apple Polish)
============================================================ */
.seo-content-section {
  margin: 60px 0 40px;
}

.section-headline {
  text-align: center;
  margin-bottom: 36px;
}

.section-title {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 800;
  color: var(--md-sys-color-on-background);
  margin-bottom: 10px;
  letter-spacing: -0.5px;
}

.section-subtitle {
  font-size: 0.95rem;
  color: var(--md-sys-color-on-surface-variant);
  max-width: 620px;
  margin: 0 auto;
}

.seo-editorial-card {
  background: var(--md-sys-color-surface-container);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  margin-bottom: 40px;
  box-shadow: 0 4px 20px var(--md-sys-color-shadow);
  line-height: 1.85;
}

.seo-editorial-card h3 {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--md-sys-color-primary);
  margin-bottom: 14px;
}

.seo-editorial-card p {
  color: var(--md-sys-color-on-surface);
  font-size: 0.96rem;
  margin-bottom: 14px;
}

.seo-editorial-card p:last-child {
  margin-bottom: 0;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-bottom: 50px;
}

.feature-box {
  background: var(--md-sys-color-surface-container);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-md);
  padding: 26px 22px;
  transition: var(--transition-spring);
  display: flex;
  flex-direction: column;
}

.feature-box:hover {
  transform: translateY(-4px);
  border-color: var(--md-sys-color-primary);
  box-shadow: 0 12px 30px var(--glass-glow);
}

.feature-icon-circle {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 16px;
}

.feature-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--md-sys-color-on-surface);
  margin-bottom: 8px;
}

.feature-desc {
  font-size: 0.86rem;
  color: var(--md-sys-color-on-surface-variant);
  line-height: 1.6;
}

/* FAQ Accordion */
.faq-accordion-list {
  max-width: 860px;
  margin: 0 auto 50px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--md-sys-color-surface-container);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition-standard);
}

.faq-item[open] {
  border-color: var(--md-sys-color-primary);
  box-shadow: 0 6px 24px var(--glass-glow);
}

.faq-question {
  padding: 18px 22px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--md-sys-color-on-surface);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  list-style: none;
  user-select: none;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-question::after {
  content: '＋';
  font-size: 1.2rem;
  color: var(--md-sys-color-primary);
  transition: transform 0.25s ease;
}

.faq-item[open] .faq-question::after {
  content: '−';
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 22px 20px;
  font-size: 0.92rem;
  color: var(--md-sys-color-on-surface-variant);
  line-height: 1.75;
  border-top: 1px solid var(--md-sys-color-outline-variant);
  padding-top: 14px;
}

@media (max-width: 600px) {
  .seo-content-section {
    margin: 40px 0 24px;
  }
  .section-headline {
    margin-bottom: 24px;
  }
  .seo-editorial-card {
    padding: 22px 16px;
    border-radius: var(--radius-md);
    margin-bottom: 28px;
  }
  .seo-editorial-card h3 {
    font-size: 1.15rem;
  }
  .seo-editorial-card p {
    font-size: 0.88rem;
  }
  .features-grid {
    grid-template-columns: 1fr;
    gap: 14px;
    margin-bottom: 36px;
  }
  .feature-box {
    padding: 20px 16px;
  }
  .faq-accordion-list {
    margin-bottom: 36px;
  }
  .faq-question {
    padding: 14px 16px;
    font-size: 0.92rem;
  }
  .faq-answer {
    padding: 0 16px 16px;
    font-size: 0.85rem;
  }
  .app-footer {
    padding: 30px 14px 24px;
  }
  .roino-brand-badge {
    padding: 10px 18px;
    font-size: 0.88rem;
  }
  .footer-tagline-text {
    font-size: 0.8rem;
  }
  .footer-privacy-text {
    font-size: 0.72rem;
  }
}