/* Import Geist font and Google Material Symbols Outlined */
@import url('https://fonts.googleapis.com/css2?family=Geist:wght@300;400;500;600;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@20..48,100..700,0..1,-50..200');

:root {
  /* Colors */
  --bg-color: #09090b;
  --primary: #a78bfa;
  --primary-hover: #8b5cf6;
  --primary-text: #09090b;
  --tertiary: #34d399; /* Emerald green */
  --danger: #ef4444;
  --danger-hover: #dc2626;

  /* Surfaces (Zinc-based grays) */
  --surface-lowest: #0c0c0f;
  --surface-container: #121215;
  --surface-card: #18181b;
  --surface-hover: #27272a;
  
  /* Borders */
  --border-color: #27272a;
  --border-focus: #a78bfa;

  /* Typography */
  --font-geist: 'Geist', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --text-primary: #fafafa;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;

  /* Spacing & Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
}

*, *::before, *::after {
  box-sizing: border-box;
}

html, body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-geist);
  margin: 0;
  padding: 0;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  letter-spacing: -0.02em;
  margin-top: 0;
  color: var(--text-primary);
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--primary-hover);
}

/* Layout */
.app-container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.app-main {
  flex: 1;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

/* Navigation / Header */
.navbar {
  background-color: var(--surface-lowest);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 50;
}

.navbar-brand {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Flash Messages */
.flash-container {
  width: 100%;
  max-width: 1200px;
  margin: 1rem auto 0 auto;
  padding: 0 1.5rem;
}

.flash-message {
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 1px solid var(--border-color);
}

.flash-notice {
  background-color: rgba(52, 211, 153, 0.1);
  color: var(--tertiary);
  border-color: rgba(52, 211, 153, 0.3);
}

.flash-alert {
  background-color: rgba(239, 68, 68, 0.1);
  color: var(--danger);
  border-color: rgba(239, 68, 68, 0.3);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-geist);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
  text-decoration: none;
}

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

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

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

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

.btn-ghost {
  background-color: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover {
  background-color: var(--surface-hover);
  color: var(--text-primary);
}

.btn-danger {
  background-color: var(--danger);
  color: #ffffff;
}

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

.btn-block {
  width: 100%;
}

/* Cards & Surfaces */
.card {
  background-color: var(--surface-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.card-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0;
}

/* Form Controls */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

.form-input {
  width: 100%;
  background-color: var(--surface-container);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.85rem;
  font-family: var(--font-geist);
  font-size: 0.95rem;
  transition: border-color 0.2s ease, outline 0.2s ease;
}

.form-input:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-color: var(--primary);
}

.form-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.3rem;
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 3rem 1rem;
  max-width: 700px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  background-color: rgba(167, 139, 250, 0.12);
  border: 1px solid rgba(167, 139, 250, 0.3);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

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

/* Auth Cards (Devise) */
.auth-container {
  max-width: 420px;
  margin: 2rem auto;
}

.auth-card {
  background-color: var(--surface-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem;
}

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

.auth-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.auth-subtitle {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.auth-links {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
  text-align: center;
  font-size: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

/* Modal Overlay & Container */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(9, 9, 11, 0.8);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 1rem;
  animation: fadeIn 0.2s ease-out;
}

.modal-container {
  background-color: var(--surface-card, #18181b);
  border: 1px solid var(--border-color, #27272a);
  border-radius: var(--radius-lg, 12px);
  width: 100%;
  max-width: 580px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.5);
  padding: 1.75rem;
  animation: slideUp 0.2s ease-out;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color, #27272a);
}

.modal-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin: 0;
  color: var(--text-primary);
}

.modal-subtitle {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

.modal-close {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 1.25rem;
  cursor: pointer;
  padding: 0.35rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: color 0.2s, background-color 0.2s;
  text-decoration: none;
}

.modal-close:hover {
  color: var(--text-primary);
  background-color: var(--surface-hover);
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { transform: translateY(12px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}