/* ========================================
   CLQMS Frontend - Fun & Light Theme
   ======================================== */

/* ---------- CSS Variables ---------- */
:root {
  /* Fun Color Palette */
  --primary: #6366f1;          /* Indigo */
  --primary-light: #818cf8;
  --primary-dark: #4f46e5;
  
  --secondary: #f472b6;        /* Pink */
  --secondary-light: #f9a8d4;
  
  --accent: #34d399;           /* Emerald */
  --accent-light: #6ee7b7;
  
  --warning: #fbbf24;          /* Amber */
  --danger: #f87171;           /* Red */
  --info: #38bdf8;             /* Sky */
  
  /* Neutrals */
  --bg-primary: #fefefe;
  --bg-secondary: #f8fafc;
  --bg-card: #ffffff;
  
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  
  --border-color: #e2e8f0;
  --border-radius: 16px;
  --border-radius-sm: 10px;
  --border-radius-lg: 24px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-glow: 0 0 40px -10px var(--primary);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-secondary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
  color: var(--text-secondary);
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

/* ---------- Fun Background Patterns ---------- */
.bg-pattern {
  background-color: var(--bg-secondary);
  background-image: 
    radial-gradient(circle at 20% 80%, rgba(99, 102, 241, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(244, 114, 182, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, rgba(52, 211, 153, 0.06) 0%, transparent 40%);
}

.bg-gradient-fun {
  background: linear-gradient(135deg, 
    rgba(99, 102, 241, 0.1) 0%, 
    rgba(244, 114, 182, 0.1) 50%, 
    rgba(52, 211, 153, 0.1) 100%);
}

/* ---------- Card Component ---------- */
.card {
  background: var(--bg-card);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  padding: 2rem;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.card-glass {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.5);
}

/* ---------- Form Elements ---------- */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.form-input {
  width: 100%;
  padding: 0.875rem 1rem;
  font-size: 1rem;
  font-family: inherit;
  color: var(--text-primary);
  background: var(--bg-secondary);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
  outline: none;
}

.form-input:focus {
  border-color: var(--primary);
  background: var(--bg-card);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.15);
}

.form-input:hover:not(:focus) {
  border-color: var(--text-muted);
}

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

.form-input-icon {
  position: relative;
}

.form-input-icon .icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
  transition: color var(--transition-fast);
}

.form-input-icon .form-input {
  padding-left: 2.75rem;
}

.form-input-icon:focus-within .icon {
  color: var(--primary);
}

/* Password toggle */
.password-toggle {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
  transition: color var(--transition-fast);
}

.password-toggle:hover {
  color: var(--primary);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  border: none;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  outline: none;
  text-decoration: none;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  box-shadow: 0 4px 14px -3px rgba(99, 102, 241, 0.5);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px -3px rgba(99, 102, 241, 0.6);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
}

.btn-secondary {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 2px solid var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--bg-card);
  border-color: var(--primary);
  color: var(--primary);
}

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

.btn-ghost:hover {
  background: var(--bg-secondary);
  color: var(--primary);
}

.btn-block {
  width: 100%;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
  border-radius: var(--border-radius);
}

/* ---------- Checkbox ---------- */
.checkbox-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
}

.checkbox-input {
  width: 1.25rem;
  height: 1.25rem;
  accent-color: var(--primary);
  cursor: pointer;
}

.checkbox-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  user-select: none;
}

/* ---------- Alerts ---------- */
.alert {
  padding: 1rem 1.25rem;
  border-radius: var(--border-radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.alert-error {
  background: rgba(248, 113, 113, 0.15);
  color: #dc2626;
  border: 1px solid rgba(248, 113, 113, 0.3);
}

.alert-success {
  background: rgba(52, 211, 153, 0.15);
  color: #059669;
  border: 1px solid rgba(52, 211, 153, 0.3);
}

.alert-info {
  background: rgba(56, 189, 248, 0.15);
  color: #0284c7;
  border: 1px solid rgba(56, 189, 248, 0.3);
}

/* ---------- Spinner ---------- */
.spinner {
  width: 1.25rem;
  height: 1.25rem;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ---------- Login Page Specific ---------- */
.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.login-card {
  width: 100%;
  max-width: 420px;
}

.login-header {
  text-align: center;
  margin-bottom: 2rem;
}

.login-logo {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: white;
  box-shadow: 0 10px 30px -10px rgba(99, 102, 241, 0.5);
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.login-title {
  font-size: 1.75rem;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.login-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.login-footer {
  text-align: center;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
}

.login-footer p {
  font-size: 0.875rem;
}

/* ---------- Decorative Elements ---------- */
.floating-shapes {
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: -1;
}

.shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0.5;
  animation: floatShape 20s ease-in-out infinite;
}

.shape-1 {
  width: 300px;
  height: 300px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
  top: -100px;
  right: -100px;
  animation-delay: 0s;
}

.shape-2 {
  width: 400px;
  height: 400px;
  background: linear-gradient(135deg, rgba(244, 114, 182, 0.12) 0%, transparent 70%);
  bottom: -150px;
  left: -150px;
  animation-delay: -7s;
}

.shape-3 {
  width: 200px;
  height: 200px;
  background: linear-gradient(135deg, rgba(52, 211, 153, 0.12) 0%, transparent 70%);
  top: 40%;
  left: 10%;
  animation-delay: -14s;
}

@keyframes floatShape {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  25% { transform: translate(20px, -30px) rotate(5deg); }
  50% { transform: translate(-10px, 20px) rotate(-5deg); }
  75% { transform: translate(30px, 10px) rotate(3deg); }
}

/* ---------- Utilities ---------- */
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.text-primary { color: var(--primary); }
.text-sm { font-size: 0.875rem; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }

.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 0.5rem; }

/* ---------- Animations ---------- */
.fade-in {
  animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.shake {
  animation: shake 0.5s ease-in-out;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-5px); }
  40%, 80% { transform: translateX(5px); }
}

/* ---------- Responsive ---------- */
@media (max-width: 480px) {
  .login-container {
    padding: 1rem;
  }
  
  .card {
    padding: 1.5rem;
  }
  
  .login-logo {
    width: 64px;
    height: 64px;
    font-size: 1.5rem;
  }
  
  .login-title {
    font-size: 1.5rem;
  }
}