/* ===================================
   Riflessione Guidata — Ed. Civica
   Design System + Component Styles
   =================================== */

/* --- Design Tokens --- */
:root, [data-theme='light'] {
  --font-display: 'Chillax', 'Arial', sans-serif;
  --font-body: 'Nunito', 'Helvetica Neue', sans-serif;

  /* Type scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);

  /* Spacing */
  --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem;
  --space-4: 1rem; --space-5: 1.25rem; --space-6: 1.5rem;
  --space-8: 2rem; --space-10: 2.5rem; --space-12: 3rem;
  --space-16: 4rem; --space-20: 5rem; --space-24: 6rem;

  /* Surfaces — soft warm white */
  --color-bg: #f5f7fa;
  --color-surface: #ffffff;
  --color-surface-2: #f0f4f8;
  --color-border: #d0d7e0;
  --color-divider: #e2e8f0;

  /* Text */
  --color-text: #1a2a3a;
  --color-text-muted: #5a6a7a;
  --color-text-faint: #94a3b8;

  /* Primary — Steel Blue */
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-primary-light: #dbeafe;
  --color-primary-dark: #1e40af;

  /* Accent — Teal (prominent for this civic/safety app) */
  --color-accent: #0d9488;
  --color-accent-hover: #0f766e;
  --color-accent-light: #ccfbf1;
  --color-accent-dark: #115e59;
  --color-accent-subtle: #f0fdfa;

  /* Success — Green */
  --color-success: #16a34a;
  --color-success-light: #dcfce7;
  --color-success-dark: #15803d;

  /* Error — Red */
  --color-error: #dc2626;
  --color-error-light: #fee2e2;

  /* Warning — Amber */
  --color-warning: #d97706;
  --color-warning-light: #fef3c7;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.25rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.12);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Info card theme colors */
  --info-dpi-bg: #f0fdfa;
  --info-dpi-border: #99f6e4;
  --info-dpi-icon: #0d9488;
  --info-norme-bg: #eff6ff;
  --info-norme-border: #bfdbfe;
  --info-norme-icon: #2563eb;
  --info-conseg-bg: #fef3c7;
  --info-conseg-border: #fde68a;
  --info-conseg-icon: #d97706;
}

[data-theme='dark'] {
  --color-bg: #0f172a;
  --color-surface: #1e293b;
  --color-surface-2: #283548;
  --color-border: #334155;
  --color-divider: #1e293b;
  --color-text: #e2e8f0;
  --color-text-muted: #94a3b8;
  --color-text-faint: #64748b;
  --color-primary: #60a5fa;
  --color-primary-hover: #3b82f6;
  --color-primary-light: #1e3a5f;
  --color-primary-dark: #93c5fd;
  --color-accent: #2dd4bf;
  --color-accent-hover: #14b8a6;
  --color-accent-light: #134e4a;
  --color-accent-dark: #5eead4;
  --color-accent-subtle: #0f2d2b;
  --color-success: #4ade80;
  --color-success-light: #14532d;
  --color-error: #f87171;
  --color-error-light: #450a0a;
  --color-warning: #fbbf24;
  --color-warning-light: #451a03;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.5);

  --info-dpi-bg: #0f2d2b;
  --info-dpi-border: #134e4a;
  --info-dpi-icon: #2dd4bf;
  --info-norme-bg: #1e3a5f;
  --info-norme-border: #1e40af;
  --info-norme-icon: #60a5fa;
  --info-conseg-bg: #451a03;
  --info-conseg-border: #78350f;
  --info-conseg-icon: #fbbf24;
}

/* --- Base Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}
body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; height: auto; }
button { cursor: pointer; background: none; border: none; font: inherit; color: inherit; }
input, button, textarea, select { font: inherit; color: inherit; }
a, button, [role='button'], input, textarea, select {
  transition: color var(--transition-interactive),
    background var(--transition-interactive),
    border-color var(--transition-interactive),
    box-shadow var(--transition-interactive);
}
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}
h1, h2, h3, h4 { text-wrap: balance; line-height: 1.15; }
p, li, figcaption { text-wrap: pretty; max-width: 72ch; }
.hidden { display: none !important; }

/* --- Header --- */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(12px);
}
.header-inner {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-4) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}
.header-left {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.header-icon {
  flex-shrink: 0;
}
.header-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -0.01em;
}
.header-subtitle {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: 500;
}
[data-theme-toggle] {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-lg);
  color: var(--color-text-muted);
  flex-shrink: 0;
}
[data-theme-toggle]:hover {
  background: var(--color-surface-2);
  color: var(--color-text);
}

/* --- Stepper --- */
.stepper {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4) var(--space-6);
}
.stepper-inner {
  max-width: 480px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 0;
}
.step-indicator {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
  flex-shrink: 0;
}
.step-circle {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-sm);
  border: 2px solid var(--color-border);
  color: var(--color-text-faint);
  background: var(--color-surface);
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.step-circle.active {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 0 0 4px var(--color-accent-light);
}
.step-circle.completed {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: #fff;
}
.step-label {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-faint);
  transition: color 0.3s ease;
}
.step-indicator[data-step].current .step-label,
.step-circle.active + .step-label {
  color: var(--color-accent);
}
.step-circle.completed + .step-label {
  color: var(--color-accent);
}
.step-line {
  flex: 1;
  height: 3px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  margin: 0 var(--space-2);
  margin-bottom: var(--space-5);
  overflow: hidden;
}
.step-line-fill {
  height: 100%;
  width: 0%;
  background: var(--color-accent);
  border-radius: var(--radius-full);
  transition: width 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* --- Main Content --- */
.main-content {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-8) var(--space-6) var(--space-16);
}
.step-panel {
  display: none;
  animation: fadeSlideIn 0.5s ease forwards;
}
.step-panel.active {
  display: block;
}
@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

.step-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

/* --- Step Title --- */
.step-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.step-emoji {
  font-size: 1.2em;
}
.step-intro {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  margin-top: calc(-1 * var(--space-4));
}

/* --- Scenario Card (Step 1) --- */
.scenario-card {
  position: relative;
  background: var(--color-accent-subtle);
  border: 1px solid var(--color-accent-light);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-xl);
  padding: var(--space-8) var(--space-6);
  padding-left: var(--space-10);
}
.scenario-quote-mark {
  position: absolute;
  top: var(--space-3);
  left: var(--space-4);
  font-family: Georgia, serif;
  font-size: 3.5rem;
  line-height: 1;
  color: var(--color-accent);
  opacity: 0.3;
  user-select: none;
}
.scenario-text {
  font-size: var(--text-lg);
  line-height: 1.8;
  color: var(--color-text);
  max-width: none;
}

/* --- Info Cards --- */
.info-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-4);
}
.info-card {
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  border: 1px solid;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.info-card--dpi {
  background: var(--info-dpi-bg);
  border-color: var(--info-dpi-border);
}
.info-card--dpi .info-card-icon { color: var(--info-dpi-icon); }
.info-card--norme {
  background: var(--info-norme-bg);
  border-color: var(--info-norme-border);
}
.info-card--norme .info-card-icon { color: var(--info-norme-icon); }
.info-card--conseguenze {
  background: var(--info-conseg-bg);
  border-color: var(--info-conseg-border);
}
.info-card--conseguenze .info-card-icon { color: var(--info-conseg-icon); }

.info-card-icon {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}
.info-card-title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
}
.info-card-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.info-card-list li {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding-left: var(--space-5);
  position: relative;
}
.info-card-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: currentColor;
  opacity: 0.5;
}

/* --- Timer --- */
.timer-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  width: 100%;
}
.timer-bar {
  height: 6px;
  background: var(--color-surface-2);
  border-radius: var(--radius-full);
  overflow: hidden;
}
.timer-bar-fill {
  height: 100%;
  width: 0%;
  background: var(--color-accent);
  border-radius: var(--radius-full);
  transition: width 1s linear;
}
.timer-text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-align: center;
  font-weight: 500;
}
.timer-text.done {
  color: var(--color-accent);
  font-weight: 600;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-xl);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-sm);
  min-height: 48px;
  min-width: 44px;
  border: 2px solid transparent;
  transition: all var(--transition-interactive);
  user-select: none;
}
.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}
.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}
.btn-primary:hover:not(:disabled) {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn-secondary:hover:not(:disabled) {
  background: var(--color-surface-2);
  border-color: var(--color-text-faint);
}
.btn-accent {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
  min-height: 56px;
}
.btn-accent:hover:not(:disabled) {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* --- Step Footer --- */
.step-footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-divider);
}
.step-footer .btn-next,
.step-footer .btn-back {
  align-self: center;
}
@media (min-width: 500px) {
  .step-footer {
    flex-direction: row;
    justify-content: space-between;
  }
  .step-footer .btn-next { margin-left: auto; }
}

/* --- Questions (Step 2) --- */
.questions {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}
.question-block {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.question-label {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  line-height: 1.5;
  cursor: pointer;
}
.question-number {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius-full);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  margin-top: 2px;
}
.question-textarea {
  width: 100%;
  padding: var(--space-4);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  font-size: var(--text-base);
  line-height: 1.6;
  resize: none;
  overflow: hidden;
  min-height: 120px;
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
}
.question-textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-light);
  outline: none;
}
.question-textarea.valid {
  border-color: var(--color-success);
}

/* Character counter */
.char-counter {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.char-progress-bar {
  height: 4px;
  background: var(--color-surface-2);
  border-radius: var(--radius-full);
  overflow: hidden;
}
.char-progress-fill {
  height: 100%;
  width: 0%;
  background: var(--color-accent);
  border-radius: var(--radius-full);
  transition: width 0.3s ease, background 0.3s ease;
}
.char-progress-fill.complete {
  background: var(--color-success);
}
.char-count {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  font-weight: 500;
}
.char-count.complete {
  color: var(--color-success);
}

/* --- Summary (Step 3) --- */
.summary-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.summary-heading {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
}
.summary-card {
  background: var(--color-surface-2);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  border: 1px solid var(--color-border);
}
.summary-card-label {
  font-size: var(--text-xs);
  color: var(--color-accent);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-2);
}
.summary-card-text {
  font-size: var(--text-base);
  color: var(--color-text);
  line-height: 1.6;
  max-width: none;
}

/* --- Commitment Card --- */
.commitment-card {
  background: var(--color-surface);
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  position: relative;
  overflow: hidden;
}
.commitment-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-success));
}
.commitment-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.commitment-icon {
  flex-shrink: 0;
}
.commitment-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-accent);
}
.commitment-text {
  font-size: var(--text-base);
  line-height: 1.8;
  color: var(--color-text);
  max-width: none;
}
.commitment-name-display {
  color: var(--color-accent);
  border-bottom: 2px dashed var(--color-accent);
  padding-bottom: 1px;
}
.commitment-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.commitment-input-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-muted);
}
.commitment-input {
  padding: var(--space-3) var(--space-4);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  font-size: var(--text-lg);
  font-weight: 600;
  max-width: 360px;
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
}
.commitment-input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-light);
  outline: none;
}
.btn-sign {
  align-self: center;
}

/* --- Signed Stamp --- */
.signed-stamp {
  display: flex;
  justify-content: center;
  padding: var(--space-6) 0;
  animation: stampIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}
@keyframes stampIn {
  0% { transform: scale(2) rotate(-15deg); opacity: 0; }
  60% { transform: scale(0.9) rotate(2deg); opacity: 1; }
  100% { transform: scale(1) rotate(-3deg); opacity: 1; }
}
.stamp-border {
  border: 4px solid var(--color-accent);
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-8);
  transform: rotate(-3deg);
}
.stamp-text {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

/* --- Completion Screen --- */
.completion-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-6);
  padding: var(--space-8) 0;
  animation: fadeSlideIn 0.6s ease forwards;
}
.completion-glow {
  position: absolute;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, var(--color-accent-light) 0%, transparent 70%);
  border-radius: 50%;
  opacity: 0.5;
  pointer-events: none;
  z-index: 0;
  animation: pulse 3s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.3; }
  50% { transform: scale(1.15); opacity: 0.6; }
}
.completion-checkmark {
  position: relative;
  z-index: 1;
  animation: bounceIn 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}
@keyframes bounceIn {
  0% { transform: scale(0); }
  60% { transform: scale(1.15); }
  100% { transform: scale(1); }
}
.completion-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text);
  position: relative;
  z-index: 1;
}
.completion-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  width: 100%;
  max-width: 400px;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  box-shadow: var(--shadow-md);
  position: relative;
  z-index: 1;
}
.completion-card-line {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  text-align: left;
  max-width: none;
}
.completion-card-line strong {
  color: var(--color-text);
}
.completion-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: center;
  position: relative;
  z-index: 1;
}

/* Commitment card signed state */
.commitment-card.signed {
  border-color: var(--color-success);
  background: var(--color-success-light);
}
.commitment-card.signed .commitment-text {
  color: var(--color-text);
}
.commitment-card.signed .commitment-form,
.commitment-card.signed .btn-sign {
  display: none;
}

/* --- Responsive --- */
@media (max-width: 600px) {
  .header-inner {
    padding: var(--space-3) var(--space-4);
  }
  .header-title {
    font-size: var(--text-base);
  }
  .stepper {
    padding: var(--space-3) var(--space-4);
  }
  .main-content {
    padding: var(--space-6) var(--space-4) var(--space-12);
  }
  .scenario-card {
    padding: var(--space-6) var(--space-4);
    padding-left: var(--space-8);
  }
  .scenario-text {
    font-size: var(--text-base);
    line-height: 1.7;
  }
  .info-cards {
    grid-template-columns: 1fr;
  }
  .commitment-card {
    padding: var(--space-6);
  }
  .commitment-input {
    max-width: 100%;
  }
  .step-footer {
    flex-direction: column;
    align-items: stretch;
  }
  .step-footer .btn {
    justify-content: center;
    width: 100%;
  }
  .completion-actions {
    flex-direction: column;
    width: 100%;
  }
  .completion-actions .btn {
    justify-content: center;
    width: 100%;
  }
}