/* iOS-inspired Premium Dark Theme Design System */

:root {
  /* Colors */
  --bg-primary: #090a0f;
  --bg-secondary: #12141c;
  --bg-card: rgba(22, 26, 38, 0.65);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(10, 132, 255, 0.5);
  
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.6);
  --text-muted: rgba(255, 255, 255, 0.35);
  
  --accent-blue: #0a84ff; /* Apple iOS standard Blue */
  --accent-gold: #ff9f0a; /* Apple iOS standard Orange/Gold */
  --accent-red: #ff453a;  /* Apple iOS standard Red */
  --accent-green: #30d158;/* Apple iOS standard Green */
  
  --shadow-premium: 0 15px 35px rgba(0, 0, 0, 0.6), 0 5px 15px rgba(0, 0, 0, 0.2);
  --transition-smooth: cubic-bezier(0.16, 1, 0.3, 1);
}

/* Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  min-height: -webkit-fill-available;
  overflow-x: hidden;
  padding: 1.5rem;
}

html {
  height: -webkit-fill-available;
}

/* App Container for Mobile Viewport Constraints */
#app-container {
  width: 100%;
  max-width: 440px;
  min-height: 520px;
  display: grid;
  place-items: center;
  position: relative;
}

/* Card glassmorphism style */
.card {
  width: 100%;
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 2.25rem 2rem;
  box-shadow: var(--shadow-premium);
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Screen Transitions using Modern CSS (Baseline 2024) */
.screen-view {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition:
    display 0.4s,
    opacity 0.4s var(--transition-smooth),
    transform 0.4s var(--transition-smooth);
  transition-behavior: allow-discrete;
}

/* Hidden state for transition exit */
.screen-view:where(.hidden, [hidden]) {
  display: none;
  opacity: 0;
  transform: translateY(20px) scale(0.96);
}

/* Starting style for transition entry */
@starting-style {
  .screen-view {
    opacity: 0;
    transform: translateY(20px) scale(0.96);
  }
}

/* Spinner Styles */
.spinner-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 3px solid rgba(255, 255, 255, 0.05);
  border-top: 3px solid var(--accent-blue);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.loading-text {
  color: var(--text-secondary);
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: 0.5px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Rating Screen Styles */
.brand-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2.5rem;
  width: 100%;
}

.client-logo {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  background-color: var(--bg-secondary);
}

.client-name {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  text-align: center;
  letter-spacing: -0.2px;
}

.question-title {
  font-size: 1.65rem;
  font-weight: 700;
  text-align: center;
  line-height: 1.35;
  margin-bottom: 2.25rem;
  color: var(--text-primary);
  letter-spacing: -0.4px;
}

/* Interactive Star Rating Container */
.star-rating-container {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1.75rem;
  direction: ltr;
}

.star-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  border-radius: 10px;
  transition: transform 0.2s var(--transition-smooth);
}

.star-btn:active {
  transform: scale(0.85);
}

.star-btn.pop {
  animation: starPop 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes starPop {
  0% { transform: scale(1); }
  50% { transform: scale(1.3); }
  100% { transform: scale(1); }
}

.star-icon {
  width: 44px;
  height: 44px;
  stroke: var(--text-muted);
  stroke-width: 1.5;
  fill: none;
  transition:
    fill 0.25s var(--transition-smooth),
    stroke 0.25s var(--transition-smooth),
    filter 0.25s var(--transition-smooth);
}

/* Highlighted and hovered stars (handled via JS classes) */
.star-btn.active .star-icon {
  stroke: var(--accent-gold);
  fill: var(--accent-gold);
  filter: drop-shadow(0 0 6px rgba(255, 159, 10, 0.45));
}

.star-btn.hovered .star-icon {
  stroke: var(--accent-gold);
  fill: rgba(255, 159, 10, 0.2);
}

.rating-subtext {
  font-size: 0.875rem;
  color: var(--text-muted);
  font-weight: 400;
}

/* Feedback Form Styles */
.feedback-card {
  align-items: stretch;
}

.btn-back {
  align-self: flex-start;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  margin-bottom: 1.75rem;
  padding: 6px 12px 6px 0;
  border-radius: 8px;
  transition: color 0.2s;
}

.btn-back svg {
  width: 18px;
  height: 18px;
}

.btn-back:hover {
  color: var(--text-primary);
}

.feedback-title {
  font-size: 1.85rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.4px;
}

.feedback-desc {
  font-size: 0.975rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 2rem;
}

/* Form Styling */
#feedback-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.input-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.2px;
}

.input-label .required {
  color: var(--accent-red);
}

.form-input {
  width: 100%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 1rem;
  padding: 0.875rem 1rem;
  outline: none;
  transition:
    border-color 0.25s var(--transition-smooth),
    box-shadow 0.25s var(--transition-smooth),
    background-color 0.25s var(--transition-smooth);
}

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

.form-input:focus {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--border-focus);
  box-shadow: 0 0 0 4px rgba(10, 132, 255, 0.15);
}

textarea.form-input {
  resize: none;
}

.error-msg {
  font-size: 0.8rem;
  color: var(--accent-red);
  min-height: 1rem;
  font-weight: 500;
  transition: opacity 0.2s;
}

/* Buttons */
.btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  padding: 1.05rem;
  border-radius: 14px;
  font-family: inherit;
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition:
    transform 0.2s var(--transition-smooth),
    filter 0.2s var(--transition-smooth),
    background-color 0.2s;
  text-decoration: none;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: linear-gradient(135deg, #007aff, #0056b3);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(10, 132, 255, 0.3);
}

.btn-primary:hover {
  filter: brightness(1.15);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
}

.btn-loader {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.25);
  border-top: 2px solid #ffffff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

/* Success Screen Styles */
.success-icon {
  margin-bottom: 2rem;
  color: var(--accent-green);
}

.checkmark {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: block;
  stroke-width: 4;
  stroke: var(--accent-green);
  stroke-miterlimit: 10;
  box-shadow: inset 0px 0px 0px var(--accent-green);
  animation: fill-checkmark .4s ease-in-out .4s forwards, scale-checkmark .3s ease-in-out 0s both;
}

.checkmark-circle {
  stroke-dasharray: 166;
  stroke-dashoffset: 166;
  stroke-width: 4;
  stroke-miterlimit: 10;
  stroke: var(--accent-green);
  fill: none;
  animation: stroke-circle 0.6s cubic-bezier(0.65, 0, 0.45, 1) forwards;
}

.checkmark-check {
  transform-origin: 50% 50%;
  stroke-dasharray: 48;
  stroke-dashoffset: 48;
  animation: stroke-check 0.3s cubic-bezier(0.65, 0, 0.45, 1) 0.6s forwards;
}

@keyframes stroke-circle {
  100% { stroke-dashoffset: 0; }
}

@keyframes stroke-check {
  100% { stroke-dashoffset: 0; }
}

@keyframes scale-checkmark {
  0%, 100% { transform: none; }
  50% { transform: scale3d(1.1, 1.1, 1); }
}

/* Error card styles */
.error-card {
  border-color: rgba(255, 69, 58, 0.2);
}

.error-icon {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
}

.title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 1rem;
  text-align: center;
}

.description {
  font-size: 0.95rem;
  color: var(--text-secondary);
  text-align: center;
  line-height: 1.5;
  margin-bottom: 2rem;
}

#demo-selector-container {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin-top: 1rem;
  border-top: 1px solid var(--border-color);
  padding-top: 1.5rem;
}

.demo-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.demo-buttons {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  width: 100%;
}

/* Landing Page Styles */
#app-container.landing-active {
  max-width: 760px;
  transition: max-width 0.4s var(--transition-smooth);
}

.landing-card {
  align-items: stretch;
  gap: 2.5rem;
}

.landing-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.logo-shield {
  font-size: 3rem;
  filter: drop-shadow(0 0 10px rgba(10, 132, 255, 0.3));
}

.logo-title {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, #ffffff 30%, var(--accent-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.landing-hero {
  text-align: center;
}

.hero-title {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 1rem;
  letter-spacing: -0.5px;
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.landing-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin: 1rem 0;
}

@media (min-width: 600px) {
  .landing-steps {
    grid-template-columns: repeat(3, 1fr);
  }
}

.step-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 20px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.75rem;
}

.step-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(10, 132, 255, 0.15);
  border: 1px solid var(--accent-blue);
  color: var(--accent-blue);
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 1.1rem;
}

.step-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
}

.step-p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.landing-cta-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 2rem 0;
}

.landing-demo-buttons {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  width: 100%;
  max-width: 320px;
}

@media (min-width: 480px) {
  .landing-demo-buttons {
    flex-direction: row;
    max-width: 480px;
  }
  .landing-demo-buttons .btn {
    flex: 1;
  }
}

.landing-pricing {
  display: flex;
  justify-content: center;
}

.pricing-card {
  background: linear-gradient(135deg, rgba(255, 159, 10, 0.05) 0%, rgba(255, 159, 10, 0.01) 100%);
  border: 1px solid rgba(255, 159, 10, 0.2);
  border-radius: 24px;
  padding: 2rem;
  width: 100%;
  max-width: 360px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
  position: relative;
  box-shadow: 0 10px 30px rgba(255, 159, 10, 0.05);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  background: var(--accent-gold);
  color: #000;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.pricing-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-top: 0.25rem;
}

.price {
  font-size: 3rem;
  font-weight: 800;
  color: var(--accent-gold);
}

.price span {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.pricing-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.landing-contact {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1rem;
}

.landing-contact h3 {
  font-size: 1.35rem;
  font-weight: 700;
}

.contact-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  max-width: 440px;
  line-height: 1.5;
}

#landing-contact-form {
  width: 100%;
  max-width: 440px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.text-success {
  color: var(--accent-green);
  font-weight: 600;
  font-size: 0.95rem;
  margin-top: 0.5rem;
}

/* Utility Classes */
.hidden {
  display: none !important;
}

/* User preference for reduced motion override */
@media (prefers-reduced-motion: reduce) {
  .screen-view, .star-btn, .btn, .spinner, .checkmark, .checkmark-circle, .checkmark-check {
    transition: none !important;
    animation: none !important;
  }
  
  .spinner {
    border: 3px solid var(--accent-blue);
  }
  
  .checkmark-circle {
    stroke-dashoffset: 0;
  }
  
  .checkmark-check {
    stroke-dashoffset: 0;
  }
}

/* --- Language Switcher Dropdown --- */
.lang-dropdown {
  position: absolute;
  top: 15px;
  right: 15px;
  z-index: 100;
}

.dropdown-trigger {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 20px;
  padding: 6px 12px;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.2s ease;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.dropdown-trigger:hover,
.dropdown-trigger.active {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.35);
}

.dropdown-trigger .arrow {
  font-size: 0.8rem;
  opacity: 0.7;
  transition: transform 0.2s ease;
}

.dropdown-trigger.active .arrow {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: rgba(20, 20, 20, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 6px;
  min-width: 100px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.dropdown-menu.hidden {
  display: none;
  opacity: 0;
  transform: translateY(-10px);
}

.dropdown-menu .lang-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: none;
  border-radius: 8px;
  padding: 8px 12px;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  width: 100%;
  text-align: left;
  cursor: pointer;
  transition: all 0.2s ease;
}

.dropdown-menu .lang-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
}

.dropdown-menu .lang-btn.active {
  background: rgba(255, 255, 255, 0.15);
  color: var(--text-primary);
}

@media (max-width: 480px) {
  .lang-dropdown {
    top: 10px;
    right: 10px;
  }
  .dropdown-trigger {
    padding: 5px 10px;
    font-size: 0.8rem;
  }
}

/* App Watermark styling */
.app-watermark {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 1.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  width: 100%;
}

.app-watermark a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
  font-weight: 500;
}

.app-watermark a span {
  color: var(--accent-blue);
  font-weight: 600;
}

.app-watermark a:hover {
  color: var(--text-primary);
}