/* ==========================================================================
   Pop up Market Content Rocket - Design System & Styles
   Brand: Colectivo Caldito Boho Market | Theme: Playful Light
   Palette: Primary #0b0b0d | Secondary #ff0abe | Accent #52fcff | Bg #ffffff
   ========================================================================== */

:root {
  /* Brand Colors */
  --color-primary: #0B0B0D;
  --color-secondary: #FF0ABE;
  --color-accent: #52FCFF;
  --color-accent-dark: #00d2d6;

  /* Surfaces - Clean Crisp Light Theme */
  --bg-main: #FFFFFF;
  --bg-surface: #F8FAFC;
  --bg-surface-elevated: #FFFFFF;
  --bg-surface-subtle: #F1F5F9;
  --bg-surface-dark: #0B0B0D;
  
  --border-subtle: #E2E8F0;
  --border-focus: #FF0ABE;
  --border-card: #CBD5E1;
  --border-bold: #0B0B0D;

  --text-primary: #0B0B0D;
  --text-secondary: #475569;
  --text-muted: #64748B;
  --text-inverse: #FFFFFF;

  /* Glows & Playful Accents */
  --glow-pink: rgba(255, 10, 190, 0.25);
  --glow-cyan: rgba(82, 252, 255, 0.4);
  --glow-dark: rgba(11, 11, 13, 0.15);

  /* Pillar Badge Colors - Playful & Vibrant */
  --pillar-educational-bg: #EFF6FF;
  --pillar-educational-text: #1D4ED8;
  --pillar-educational-border: #93C5FD;

  --pillar-promotional-bg: #FDF2F8;
  --pillar-promotional-text: #BE185D;
  --pillar-promotional-border: #F472B6;

  --pillar-engagement-bg: #ECFDF5;
  --pillar-engagement-text: #047857;
  --pillar-engagement-border: #6EE7B7;

  --pillar-social-proof-bg: #FAF5FF;
  --pillar-social-proof-text: #7E22CE;
  --pillar-social-proof-border: #D8B4FE;

  --pillar-bts-bg: #FFFBEB;
  --pillar-bts-text: #B45309;
  --pillar-bts-border: #FCD34D;

  /* Typography */
  --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Shadows & Radii */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --shadow-sm: 0 2px 4px rgba(11, 11, 13, 0.04);
  --shadow-md: 0 8px 24px -4px rgba(11, 11, 13, 0.08);
  --shadow-lg: 0 16px 36px -6px rgba(11, 11, 13, 0.12);
  --shadow-playful: 4px 4px 0px #0B0B0D;
  --shadow-sticky: 0 -8px 24px rgba(11, 11, 13, 0.1);

  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  width: 100%;
  max-width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Background Atmosphere - Playful Dot Grid & Soft Glow */
.bg-ambient {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(#E2E8F0 1.2px, transparent 1.2px);
  background-size: 24px 24px;
  opacity: 0.6;
}

.bg-ambient::before {
  content: '';
  position: absolute;
  top: -10%;
  left: 50%;
  transform: translateX(-50%);
  width: min(800px, 100vw);
  height: 400px;
  background: radial-gradient(circle, rgba(255, 10, 190, 0.08) 0%, rgba(82, 252, 255, 0.08) 50%, rgba(255, 255, 255, 0) 70%);
  filter: blur(50px);
}

/* Top Business Header Bar */
.top-business-bar {
  width: 100%;
  background: var(--color-primary);
  color: #FFFFFF;
  padding: 8px 16px;
  font-size: 0.8125rem;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  z-index: 10;
  text-align: center;
}

.top-bar-brand-logo {
  height: 18px;
  width: auto;
  object-fit: contain;
  opacity: 0.95;
}

.business-bar-pill {
  background: var(--color-secondary);
  color: #FFFFFF;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 0.6875rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.business-bar-link {
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 600;
  transition: opacity var(--transition-fast);
}

.business-bar-link:hover {
  text-decoration: underline;
  opacity: 0.9;
}

/* Main App Container */
.app-container {
  width: 100%;
  max-width: 680px;
  min-height: 100vh;
  margin: 0 auto;
  padding: 24px 16px 140px 16px;
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
}

/* Screen Transitions */
.screen {
  display: none;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--transition-normal), transform var(--transition-normal);
  width: 100%;
  box-sizing: border-box;
}

.screen.active {
  display: flex;
  flex-direction: column;
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   SCREEN 1: INPUT SCREEN
   ========================================================================== */

.input-hero {
  text-align: center;
  margin-top: 12px;
  margin-bottom: 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Brand Hero Logo */
.hero-logo-wrap {
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.hero-main-logo {
  height: 96px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
  filter: drop-shadow(4px 4px 0px rgba(11, 11, 13, 0.85));
  transition: transform var(--transition-fast);
}

.hero-main-logo:hover {
  transform: scale(1.04) rotate(-1.5deg);
}

.brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-primary);
  background: var(--color-accent);
  border: 1.5px solid var(--color-primary);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 14px;
  box-shadow: 2px 2px 0px var(--color-primary);
}

.brand-badge-icon {
  font-size: 1rem;
}

.hero-title {
  font-size: clamp(1.75rem, 6vw, 2.35rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.hero-title-highlight {
  color: var(--color-secondary);
  position: relative;
  display: inline-block;
}

.hero-subtitle {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.5;
  max-width: 500px;
  margin: 0 auto 6px auto;
  font-weight: 500;
}

.hero-description {
  font-size: 0.875rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Form Container */
.form-card {
  background: var(--bg-surface);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: var(--shadow-playful);
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-label {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.form-label-hint {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-muted);
}

/* Single-line text input */
.text-input-wrap {
  position: relative;
}

.text-input {
  width: 100%;
  height: 52px;
  background: #FFFFFF;
  border: 1.5px solid var(--border-bold);
  border-radius: var(--radius-md);
  padding: 0 16px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 500;
  outline: none;
  transition: all var(--transition-fast);
}

.text-input:focus {
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 3px var(--glow-pink);
}

.text-input::placeholder {
  color: var(--text-muted);
}

.input-error-msg {
  font-size: 0.8125rem;
  color: #DC2626;
  font-weight: 600;
  margin-top: 4px;
  display: none;
}

.has-error .text-input {
  border-color: #DC2626;
}

.has-error .input-error-msg {
  display: block;
}

/* Quick Suggestion Chips */
.quick-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 6px;
}

.quick-tag-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  width: 100%;
  margin-bottom: 2px;
}

.tag-btn {
  background: #FFFFFF;
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 600;
  font-family: inherit;
  padding: 4px 12px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

/* Platforms Multi-select Grid */
.platform-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 8px;
}

.platform-checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #FFFFFF;
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  cursor: pointer;
  user-select: none;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.platform-checkbox-label:hover {
  border-color: var(--color-primary);
  background: #FDF2F8;
}

.platform-checkbox-label input[type="checkbox"] {
  accent-color: var(--color-secondary);
  width: 17px;
  height: 17px;
  cursor: pointer;
}

.platform-checkbox-label.is-checked {
  background: #FFF0F9;
  border-color: var(--color-secondary);
  color: var(--color-primary);
}

/* Segmented Control for Length */
.segmented-control {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: var(--bg-surface-subtle);
  border: 1.5px solid var(--border-bold);
  padding: 4px;
  border-radius: var(--radius-md);
  gap: 4px;
}

.segment-item {
  position: relative;
}

.segment-item input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.segment-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 10px 8px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.9375rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
}

.segment-sub {
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-top: 2px;
}

.segment-item input[type="radio"]:checked + .segment-btn {
  background: var(--color-primary);
  color: #FFFFFF;
  box-shadow: var(--shadow-sm);
}

.segment-item input[type="radio"]:checked + .segment-btn .segment-sub {
  color: var(--color-accent);
}

/* Primary Launch Button */
.btn-primary-launch {
  height: 56px;
  background: var(--color-secondary);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-md);
  color: #FFFFFF;
  font-family: inherit;
  font-size: 1.0625rem;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  cursor: pointer;
  box-shadow: 4px 4px 0px var(--color-primary);
  transition: all var(--transition-fast);
  width: 100%;
  margin-top: 6px;
  letter-spacing: 0.01em;
}

.btn-primary-launch:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0px var(--color-primary);
}

.btn-primary-launch:active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0px var(--color-primary);
}

.btn-primary-launch svg {
  width: 20px;
  height: 20px;
}

/* ==========================================================================
   SCREEN 2: RESULTS SCREEN
   ========================================================================== */

/* Top Confirmation Bar */
.confirmation-bar {
  background: var(--bg-surface);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-lg);
  padding: 20px 22px;
  margin-bottom: 18px;
  box-shadow: var(--shadow-playful);
}

.confirmation-title {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.confirmation-subline {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.subline-tag {
  color: var(--color-secondary);
  font-weight: 800;
}

/* Compact Metrics Row (3 items only) */
.metrics-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  padding-top: 14px;
  border-top: 1.5px solid var(--border-subtle);
}

.metric-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: #FFFFFF;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-primary);
  text-align: center;
  border: 1.5px solid var(--border-subtle);
}

.metric-item svg {
  width: 15px;
  height: 15px;
  color: #059669;
  flex-shrink: 0;
}

/* One-line summary copy */
.summary-banner {
  background: #FFF0F9;
  border-left: 4px solid var(--color-secondary);
  padding: 14px 16px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: 22px;
  border-top: 1px solid #FCE7F3;
  border-right: 1px solid #FCE7F3;
  border-bottom: 1px solid #FCE7F3;
}

.summary-text {
  font-size: 0.9375rem;
  color: var(--color-primary);
  font-weight: 600;
  line-height: 1.45;
}

/* Vertical List of Post Cards */
.calendar-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
  width: 100%;
}

/* Individual Post Card */
.post-card {
  background: #FFFFFF;
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: 3px 3px 0px rgba(11, 11, 13, 0.9);
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: relative;
  transition: all var(--transition-fast);
}

.post-card:hover {
  transform: translateY(-2px);
  box-shadow: 5px 5px 0px rgba(11, 11, 13, 0.9);
}

/* Card Header */
.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

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

.day-badge {
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--color-primary);
}

.pillar-badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  letter-spacing: 0.02em;
}

.pillar-educational {
  background: var(--pillar-educational-bg);
  color: var(--pillar-educational-text);
  border-color: var(--pillar-educational-border);
}

.pillar-promotional {
  background: var(--pillar-promotional-bg);
  color: var(--pillar-promotional-text);
  border-color: var(--pillar-promotional-border);
}

.pillar-engagement {
  background: var(--pillar-engagement-bg);
  color: var(--pillar-engagement-text);
  border-color: var(--pillar-engagement-border);
}

.pillar-social-proof {
  background: var(--pillar-social-proof-bg);
  color: var(--pillar-social-proof-text);
  border-color: var(--pillar-social-proof-border);
}

.pillar-behind-the-scenes {
  background: var(--pillar-bts-bg);
  color: var(--pillar-bts-text);
  border-color: var(--pillar-bts-border);
}

.card-format-tag {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-primary);
  background: var(--color-accent);
  border: 1.5px solid var(--color-primary);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Caption Body */
.card-caption-box {
  background: var(--bg-surface);
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  position: relative;
}

.card-caption-text {
  font-size: 0.9375rem;
  color: var(--text-primary);
  line-height: 1.6;
  white-space: pre-line;
  user-select: text;
  word-break: break-word;
  font-weight: 500;
}

/* CTA & Hashtags Lines */
.card-meta-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.card-cta-line {
  font-size: 0.875rem;
  color: var(--color-primary);
  font-weight: 700;
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.card-cta-label {
  color: var(--color-secondary);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 800;
  flex-shrink: 0;
}

.card-hashtags-line {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.5;
  word-break: break-word;
}

.hashtag-item {
  color: #2563EB;
  margin-right: 6px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
}

/* AI Visual Creator Feature */
.ai-visual-toggle {
  margin-top: 4px;
  border-top: 1px dashed var(--border-subtle);
  padding-top: 12px;
}

.ai-visual-prompt-box {
  display: none;
  background: #F8FAFC;
  border: 1.5px solid #CBD5E1;
  border-radius: var(--radius-sm);
  padding: 12px;
  margin-top: 8px;
  font-size: 0.8125rem;
  color: #334155;
  line-height: 1.5;
}

.ai-visual-prompt-box.open {
  display: block;
}

.ai-visual-btn {
  background: transparent;
  border: none;
  color: var(--color-secondary);
  font-family: inherit;
  font-size: 0.8125rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 0;
  transition: opacity var(--transition-fast);
}

.ai-visual-btn:hover {
  opacity: 0.8;
  text-decoration: underline;
}

/* Card Single Primary Action */
.btn-copy-card {
  width: 100%;
  height: 44px;
  background: #FFFFFF;
  border: 1.5px solid var(--color-primary);
  border-radius: var(--radius-md);
  color: var(--color-primary);
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
  box-shadow: 2px 2px 0px var(--color-primary);
  transition: all var(--transition-fast);
}

.btn-copy-card:hover {
  background: var(--color-accent);
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0px var(--color-primary);
}

.btn-copy-card.copied {
  background: #059669;
  border-color: #059669;
  color: #FFFFFF;
}

/* ==========================================================================
   STICKY BOTTOM ACTION BAR
   ========================================================================== */

.sticky-bottom-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 2px solid var(--color-primary);
  padding: 14px 16px max(14px, env(safe-area-inset-bottom, 14px)) 14px;
  z-index: 100;
  box-shadow: var(--shadow-sticky);
  display: none;
}

.sticky-bottom-bar.active {
  display: block;
}

.sticky-bar-inner {
  max-width: 680px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
}

.btn-copy-all {
  width: 100%;
  height: 50px;
  background: var(--color-secondary);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-md);
  color: #FFFFFF;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
  box-shadow: 3px 3px 0px var(--color-primary);
  transition: all var(--transition-fast);
}

.btn-copy-all:hover {
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0px var(--color-primary);
}

.btn-copy-all.copied {
  background: #059669;
  border-color: var(--color-primary);
}

.btn-generate-new {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 700;
  padding: 6px 12px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color var(--transition-fast);
}

.btn-generate-new:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

/* ==========================================================================
   BUSINESS FOOTER & CREATOR CREDIT
   ========================================================================== */

.app-footer {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1.5px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 16px;
  text-align: center;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.footer-business-card {
  background: var(--bg-surface);
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 18px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.footer-logos-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  padding-bottom: 6px;
}

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

.footer-logo-republica {
  height: 24px;
  width: auto;
  object-fit: contain;
  opacity: 0.9;
}

.footer-business-name {
  font-size: 0.9375rem;
  font-weight: 800;
  color: var(--color-primary);
}

.footer-business-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 16px;
  font-size: 0.8125rem;
}

.footer-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.footer-business-link {
  color: var(--color-secondary);
  text-decoration: none;
  font-weight: 600;
}

.footer-business-link:hover {
  text-decoration: underline;
}

.footer-creator-credit {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.footer-creator-credit a {
  color: var(--color-primary);
  font-weight: 600;
  text-decoration: none;
}

.footer-creator-credit a:hover {
  text-decoration: underline;
}

/* ==========================================================================
   LOADING OVERLAY & TOAST
   ========================================================================== */

.loading-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  z-index: 200;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  text-align: center;
  padding: 24px;
}

.loading-overlay.active {
  display: flex;
}

.spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--border-subtle);
  border-top-color: var(--color-secondary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.loading-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-primary);
}

.loading-subtitle {
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.toast-container {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 300;
  pointer-events: none;
}

.toast {
  background: var(--color-primary);
  color: #FFFFFF;
  font-size: 0.875rem;
  font-weight: 700;
  padding: 10px 20px;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--color-accent);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
  display: flex;
  align-items: center;
  gap: 8px;
  opacity: 0;
  transform: translateY(-12px);
  transition: all var(--transition-normal);
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   RESPONSIVE DESIGN (320px+)
   ========================================================================== */

@media (max-width: 600px) {
  .app-container {
    padding: 16px 12px 130px 12px;
  }

  .hero-title {
    font-size: clamp(1.5rem, 5.5vw, 1.875rem);
  }

  .form-card {
    padding: 20px 14px;
    gap: 18px;
  }

  .platform-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
  }

  .platform-checkbox-label {
    padding: 8px 10px;
    font-size: 0.8125rem;
  }

  .segment-btn {
    padding: 8px 4px;
    font-size: 0.875rem;
  }

  .metrics-row {
    grid-template-columns: repeat(3, 1fr);
    gap: 4px;
  }

  .metric-item {
    font-size: 0.75rem;
    padding: 6px 4px;
  }

  .confirmation-bar {
    padding: 16px 14px;
  }

  .post-card {
    padding: 16px 14px;
  }

  .top-business-bar {
    font-size: 0.75rem;
    padding: 6px 10px;
  }
}

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

  .metrics-row {
    grid-template-columns: 1fr;
  }
}

.lang-switch-link {
  color: var(--color-accent);
  background: rgba(255, 255, 255, 0.12);
  padding: 3px 8px;
  border-radius: var(--radius-full);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.75rem;
  border: 1px solid rgba(82, 252, 255, 0.3);
  transition: all var(--transition-fast);
}
.lang-switch-link:hover {
  background: var(--color-accent);
  color: var(--color-primary);
}