/* The Language Dojo — Design System Styles */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Lexend:wght@500;600;700&family=Patrick+Hand&display=swap');

:root {
  --base-bg: #fafaf9;
  --base-surface: #ffffff;
  --base-text: #1c1917;
  --base-text-secondary: #78716c;
  --base-text-muted: #a8a29e;
  --base-border: #e7e5e4;
  --base-link: #2563eb;

  --accent: #2563eb;
  --accent-dark: #1d4ed8;
  --accent-light: #3b82f6;
  --accent-bg: #eff6ff;
  --accent-bg-light: #f5f3ff;

  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;

  --font-heading: 'Lexend', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-accent: 'Patrick Hand', cursive;

  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-body);
  background: var(--base-bg);
  color: var(--base-text);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
}

main.container {
  flex: 1;
}

/* Navbar */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background: var(--base-surface);
  border-bottom: 1px solid var(--base-border);
  box-shadow: var(--shadow);
}

.brand {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--base-text);
  text-decoration: none;
  font-family: var(--font-heading);
}

.nav-user {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: var(--base-text-secondary);
  font-size: 0.9rem;
}

/* Container */
.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s;
  font-family: var(--font-body);
}

.btn-primary {
  background: var(--accent);
  color: white;
}

.btn-primary:hover {
  background: var(--accent-dark);
}

.btn-secondary {
  background: var(--base-surface);
  color: var(--base-text);
  border: 1px solid var(--base-border);
}

.btn-secondary:hover {
  background: var(--base-bg);
  border-color: var(--base-text-muted);
}

.btn-small {
  padding: 0.4rem 0.8rem;
  font-size: 0.85rem;
  background: var(--base-surface);
  color: var(--base-text-secondary);
  border: 1px solid var(--base-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s;
}

.btn-small:hover {
  background: var(--danger);
  color: white;
  border-color: var(--danger);
}

/* Inputs */
.input {
  width: 100%;
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
  background: var(--base-surface);
  border: 1px solid var(--base-border);
  border-radius: var(--radius);
  color: var(--base-text);
  font-size: 1rem;
  font-family: var(--font-body);
}

.input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Auth Page */
.auth-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem 0;
  min-height: calc(100vh - 64px);
}

.auth-form {
  max-width: 420px;
  margin: 0 auto;
  width: 100%;
}

.form-card {
  background: var(--base-surface);
  padding: 2.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--base-border);
  box-shadow: var(--shadow);
}

.auth-header {
  margin-bottom: 1.5rem;
}

.auth-header h1 {
  font-size: 1.6rem;
  font-family: var(--font-heading);
  margin-bottom: 0.25rem;
}

.auth-subtitle {
  color: var(--base-text-secondary);
  font-size: 0.95rem;
}

.auth-form-inner {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.auth-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 0.35rem;
  color: var(--base-text);
}

.auth-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.auth-forgot {
  font-size: 0.85rem;
  color: var(--base-link);
  text-decoration: none;
}

.auth-forgot:hover {
  text-decoration: underline;
}

.btn-full {
  width: 100%;
  padding: 0.85rem 1.5rem;
  border-radius: 9999px;
  margin-top: 0.5rem;
}

.auth-divider {
  height: 1px;
  background: var(--base-border);
  margin: 1.25rem 0;
}

.auth-terms {
  text-align: center;
  color: var(--base-text-muted);
  font-size: 0.8rem;
  line-height: 1.5;
}

.auth-terms a {
  color: var(--base-link);
  text-decoration: none;
}

.auth-terms a:hover {
  text-decoration: underline;
}

.auth-toggle {
  margin-top: 1rem;
  text-align: center;
  color: var(--base-text-secondary);
  font-size: 0.9rem;
}

.auth-toggle a {
  color: var(--base-link);
  text-decoration: none;
  font-weight: 600;
}

.auth-toggle a:hover {
  text-decoration: underline;
}

.auth-back {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--base-link);
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.auth-back:hover {
  text-decoration: underline;
}

/* Pill inputs for auth */
.input-pill {
  border-radius: 9999px;
  padding: 0.85rem 1.25rem;
  border: 1.5px solid var(--base-border);
  margin-bottom: 1.25rem;
}

.input-pill:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

/* Handwritten auth heading */
.auth-handwritten {
  font-family: var(--font-accent);
  font-size: 2.2rem;
  font-weight: 400;
  margin-bottom: 0.25rem;
  color: var(--base-text);
}

/* Error box */
.error-box {
  background: #fef2f2;
  color: #991b1b;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
  font-size: 0.9rem;
  border: 1px solid #fecaca;
}

.hidden {
  display: none !important;
}

/* Dashboard */
.dashboard {
  text-align: center;
  padding: 2rem 0;
}

.dashboard h1 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
  font-family: var(--font-heading);
}

.subtitle {
  color: var(--base-text-secondary);
  margin-bottom: 2rem;
}

.language-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  max-width: 500px;
  margin: 0 auto;
}

.language-card {
  background: var(--base-surface);
  padding: 2rem;
  border-radius: var(--radius);
  border: 1px solid var(--base-border);
  text-decoration: none;
  color: var(--base-text);
  transition: all 0.2s;
  box-shadow: var(--shadow);
}

.language-card:hover:not(.disabled) {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.language-card.disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.flag {
  font-size: 3rem;
  margin-bottom: 0.5rem;
}

.language-card h2 {
  font-size: 1.3rem;
  margin-bottom: 0.3rem;
  font-family: var(--font-heading);
}

.language-card p {
  color: var(--base-text-secondary);
  font-size: 0.9rem;
}

/* Modules */
.modules-grid {
  padding: 1rem 0;
}

.modules-grid h1 {
  text-align: center;
  margin-bottom: 2rem;
  font-size: 1.8rem;
  font-family: var(--font-heading);
}

.modules {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.module-card {
  background: var(--base-surface);
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--base-border);
  text-decoration: none;
  color: var(--base-text);
  transition: all 0.2s;
  box-shadow: var(--shadow);
}

.module-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.module-icon {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.module-card h2 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  font-family: var(--font-heading);
}

.module-card p {
  color: var(--base-text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

/* Game Header */
.game-header {
  margin-bottom: 1.5rem;
}

.back-link {
  color: var(--base-text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  display: inline-block;
  margin-bottom: 0.5rem;
}

.back-link:hover {
  color: var(--base-text);
}

.game-header h1 {
  font-size: 1.5rem;
  font-family: var(--font-heading);
}

/* Mode Selection */
.mode-selection {
  text-align: center;
}

.instructions {
  color: var(--base-text-secondary);
  margin-bottom: 1.5rem;
}

.modes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.mode-btn {
  background: var(--base-surface);
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--base-border);
  text-decoration: none;
  color: var(--base-text);
  transition: all 0.2s;
  box-shadow: var(--shadow);
}

.mode-btn:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.mode-btn h3 {
  font-size: 1.1rem;
  margin-bottom: 0.3rem;
  font-family: var(--font-heading);
}

.mode-btn p {
  color: var(--base-text-secondary);
  font-size: 0.85rem;
}

/* Game Progress */
.game-progress {
  text-align: center;
  color: var(--base-text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

/* Question Card */
.question-card {
  background: var(--base-surface);
  padding: 2rem;
  border-radius: var(--radius);
  border: 1px solid var(--base-border);
  text-align: center;
  box-shadow: var(--shadow);
}

.noun, .verb, .starter {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--accent);
  font-family: var(--font-heading);
}

.context {
  color: var(--base-text-secondary);
  font-size: 1.1rem;
  margin-bottom: 1rem;
  font-style: italic;
}

.prompt {
  color: var(--base-text-secondary);
  margin-bottom: 1.5rem;
}

.options {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.option-btn {
  padding: 1rem 1.5rem;
  background: var(--base-bg);
  border: 2px solid var(--base-border);
  border-radius: var(--radius);
  color: var(--base-text);
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s;
  text-align: left;
  font-family: var(--font-body);
}

.option-btn:hover {
  border-color: var(--accent);
  background: var(--accent-bg);
}

.sentence-option {
  font-size: 1.05rem;
  line-height: 1.5;
}

/* Feedback */
.feedback {
  text-align: center;
  padding: 3rem 2rem;
  background: var(--base-surface);
  border-radius: var(--radius);
  border: 1px solid var(--base-border);
  box-shadow: var(--shadow);
}

.feedback.correct {
  border-color: var(--success);
}

.feedback.incorrect {
  border-color: var(--danger);
}

.feedback-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
}

.feedback h2 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
  font-family: var(--font-heading);
}

.feedback.correct h2 {
  color: #047857;
}

.feedback.incorrect h2 {
  color: #b91c1c;
}

.the-phrase {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--base-text);
}

.gender-tag, .category-tag {
  color: var(--base-text-secondary);
  font-size: 0.9rem;
  text-transform: capitalize;
  margin-bottom: 1rem;
}

.rule-box {
  background: var(--base-bg);
  border-left: 4px solid var(--warning);
  padding: 1rem 1.25rem;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin-bottom: 1.5rem;
  text-align: left;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--base-text);
}

.rule-box strong {
  color: #b45309;
}

.actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Game Complete */
.game-complete {
  text-align: center;
  padding: 3rem;
  background: var(--base-surface);
  border-radius: var(--radius);
  border: 1px solid var(--base-border);
  box-shadow: var(--shadow);
}

.game-complete h2 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
  font-family: var(--font-heading);
}

.game-complete p {
  color: var(--base-text-secondary);
  margin-bottom: 1.5rem;
}

/* Footer */
.footer {
  text-align: center;
  padding: 2rem;
  color: var(--base-text-muted);
  font-size: 0.9rem;
}

.footer-socials {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 1rem;
}

.footer-socials a {
  color: var(--base-text-secondary);
  transition: color 0.2s;
}

.footer-socials a:hover {
  color: var(--base-text);
}

.footer-legal {
  margin-bottom: 1rem;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.75rem;
}

.footer-legal a {
  color: var(--base-text-secondary);
  text-decoration: none;
}

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

.footer-legal span {
  color: var(--base-text-muted);
}

.footer-copyright {
  color: var(--base-text-secondary);
}

.footer-copyright a {
  color: var(--base-text);
  text-decoration: none;
  font-weight: 500;
}

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

/* Landing Page */
.landing-hero {
  text-align: center;
  padding: 4rem 1rem 3rem;
}

.landing-hero h1 {
  font-family: var(--font-accent);
  font-size: 3.5rem;
  font-weight: 400;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--base-text);
}

.landing-hero .accent {
  color: var(--accent);
}

.landing-hero p {
  font-size: 1.15rem;
  color: var(--base-text-secondary);
  max-width: 500px;
  margin: 0 auto 2rem;
}

.landing-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.landing-cta .btn {
  border-radius: 9999px;
  padding: 0.9rem 2rem;
  font-size: 1.05rem;
}

.languages-preview {
  padding: 2rem 0;
}

.languages-preview h2 {
  text-align: center;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.language-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  max-width: 700px;
  margin: 0 auto;
}

.language-preview-card {
  background: var(--base-surface);
  padding: 1.75rem;
  border-radius: var(--radius);
  border: 1px solid var(--base-border);
  text-align: center;
  transition: all 0.2s;
  box-shadow: var(--shadow);
}

.language-preview-card:hover:not(.disabled) {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.language-preview-card.disabled {
  opacity: 0.55;
  cursor: default;
}

.language-preview-card .flag {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.language-preview-card h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  margin-bottom: 0.3rem;
}

.language-preview-card p {
  color: var(--base-text-secondary);
  font-size: 0.9rem;
}

.language-preview-card .badge {
  display: inline-block;
  margin-top: 0.5rem;
  padding: 0.25rem 0.6rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--accent-bg);
  color: var(--accent);
}

.features-grid {
  padding: 2rem 0;
}

.features-grid h2 {
  text-align: center;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.features-grid .modules {
  max-width: 800px;
  margin: 0 auto;
}

.steps {
  padding: 2rem 0;
  text-align: center;
}

.steps h2 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.steps-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  max-width: 700px;
  margin: 0 auto;
}

.step {
  background: var(--base-surface);
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--base-border);
  box-shadow: var(--shadow);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: var(--accent);
  color: white;
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 0.75rem;
}

.step h3 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  margin-bottom: 0.4rem;
}

.step p {
  color: var(--base-text-secondary);
  font-size: 0.9rem;
}

.landing-footer-cta {
  text-align: center;
  padding: 3rem 1rem;
}

.landing-footer-cta h2 {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  margin-bottom: 1rem;
}

.landing-footer-cta p {
  color: var(--base-text-secondary);
  margin-bottom: 1.5rem;
}

.landing-footer-cta .btn {
  border-radius: 9999px;
  padding: 0.9rem 2.5rem;
  font-size: 1.05rem;
}

/* Responsive */
@media (max-width: 640px) {
  .auth-form {
    max-width: 100%;
  }

  .form-card {
    padding: 1.5rem;
  }

  .language-grid {
    grid-template-columns: 1fr;
  }

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

  .modules {
    grid-template-columns: 1fr;
  }

  .container {
    padding: 1rem;
  }

  .navbar {
    padding: 1rem;
  }

  .landing-hero h1 {
    font-size: 2.4rem;
  }

  .hero h1 {
    font-size: 1.8rem;
  }

  .noun, .verb, .starter {
    font-size: 1.5rem;
  }
}