@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

:root {
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --secondary: #ec4899;
  --accent: #8b5cf6;
  
  --bg-gradient-1: #4f46e5;
  --bg-gradient-2: #8b5cf6;
  --bg-gradient-3: #ec4899;
  
  --glass-bg: rgba(255, 255, 255, 0.75);
  --glass-border: rgba(255, 255, 255, 0.5);
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
  
  --text-main: #111827;
  --text-muted: #6b7280;
  --text-light: #f9fafb;
  
  --danger: #ef4444;
  --success: #10b981;
  --warning: #f59e0b;
  
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Poppins', sans-serif;
  color: var(--text-main);
  background: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab);
  background-size: 400% 400%;
  animation: gradientBG 15s ease infinite;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* Authentic Dashboard Background Override */
body.bg-dashboard {
  background: #f3f4f6;
  background-image: 
    radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.15) 0px, transparent 50%),
    radial-gradient(at 100% 0%, rgba(236, 72, 153, 0.15) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(34, 211, 238, 0.15) 0px, transparent 50%),
    radial-gradient(at 0% 100%, rgba(139, 92, 246, 0.15) 0px, transparent 50%);
  background-attachment: fixed;
  animation: none;
}

@keyframes gradientBG {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Center Wrapper for Auth Pages */
.center-wrapper {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  position: relative;
  z-index: 1;
}

/* Glass Card - Modern & Authentic */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: 1.5rem;
  padding: 3rem 2.5rem;
  width: 100%;
  max-width: 440px;
  box-shadow: var(--glass-shadow);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
  animation: fadeInUp 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.glass-card:hover {
  box-shadow: 0 12px 40px 0 rgba(31, 38, 135, 0.25);
  transform: translateY(-5px);
}

/* Typography */
.app-title {
  font-size: 2rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-align: center;
  margin-bottom: 0.25rem;
  letter-spacing: -0.5px;
}

.card-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  text-align: center;
  color: var(--text-main);
}

.card-subtitle {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: 2rem;
  font-size: 0.95rem;
}

/* Forms & Inputs */
.form {
  margin-top: 1.5rem;
}

.input-group {
  margin-bottom: 1.5rem;
  position: relative;
}

.input-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--text-main);
  transition: color 0.3s ease;
}

.input-group input {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 2px solid transparent;
  border-radius: 0.75rem;
  background: rgba(255, 255, 255, 0.8);
  font-family: inherit;
  font-size: 1rem;
  transition: all 0.3s ease;
  box-shadow: 0 2px 5px rgba(0,0,0,0.02);
}

.input-group input:focus {
  outline: none;
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.15);
  transform: translateY(-2px);
}

.input-group:focus-within label {
  color: var(--primary);
}

/* Buttons - Next Level Hover */
.btn {
  display: inline-block;
  padding: 0.875rem 1.5rem;
  border-radius: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: none;
  font-size: 1rem;
  letter-spacing: 0.3px;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  background-size: 200% 200%;
  color: white;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
  animation: gradientShift 4s ease infinite;
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
}

.btn-primary:active {
  transform: translateY(-1px) scale(0.98);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
}

.btn-full {
  width: 100%;
}

.btn-secondary {
  background: white;
  color: var(--text-main);
  border: 1px solid #e5e7eb;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.btn-secondary:hover {
  background: #f9fafb;
  border-color: #d1d5db;
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

/* Links */
.card-footer {
  margin-top: 2rem;
  text-align: center;
  font-size: 0.9rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.link {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s;
  position: relative;
  display: inline-block;
}

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

.link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -2px;
  left: 50%;
  background-color: var(--primary);
  transition: all 0.3s ease;
  transform: translateX(-50%);
}

.link:hover::after {
  width: 100%;
}

/* Logo */
.logo-wrapper {
  text-align: center;
  margin-bottom: 1.5rem;
}

.logo-img {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 0.75rem;
  border: 4px solid white;
  box-shadow: 0 8px 20px rgba(0,0,0,0.15);
  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.logo-wrapper:hover .logo-img {
  transform: rotate(10deg) scale(1.1);
}

/* Dashboard Structure */
.top-bar {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(255,255,255,0.5);
}

.top-bar-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.top-bar-title {
  font-weight: 700;
  font-size: 1.5rem;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-img-small {
  width: 45px;
  height: 45px;
  border-radius: 50%;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  transition: transform 0.3s ease;
}

.top-bar:hover .logo-img-small {
  transform: rotate(15deg);
}

/* Dashboard Cards */
.dashboard-container {
  max-width: 1200px;
  margin: 2.5rem auto;
  padding: 0 1.5rem;
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr;
}

@media (min-width: 900px) {
  .dashboard-container {
    grid-template-columns: 320px 1fr;
  }
}

.card {
  background: white;
  border-radius: 1.25rem;
  padding: 2rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid rgba(255,255,255,0.5);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.card:hover {
  transform: translateY(-8px) scale(1.01);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.card:hover::before {
  opacity: 1;
}

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

.profile-photo {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid white;
  box-shadow: 0 10px 20px rgba(0,0,0,0.1);
  margin-bottom: 1rem;
  transition: transform 0.3s ease;
}

.card:hover .profile-photo {
  transform: scale(1.05);
}

.profile-info h2 {
  color: var(--text-main);
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
}

.profile-info p {
  color: var(--text-muted);
}

/* Attendance Table */
.attendance-card {
  overflow-x: auto;
}

.attendance-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.attendance-header h2 {
  font-size: 1.5rem;
  color: var(--text-main);
}

.table-wrapper {
  overflow-x: auto;
  border-radius: 1rem;
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
}

.attendance-table {
  width: 100%;
  border-collapse: collapse;
  background: white;
}

.attendance-table th,
.attendance-table td {
  padding: 1rem 1.5rem;
  text-align: left;
  border-bottom: 1px solid #f3f4f6;
}

.attendance-table th {
  background: #f9fafb;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

.attendance-table tr {
  transition: background 0.2s ease;
}

.attendance-table tr:hover {
  background: #f9fafb;
}

.attendance-table tr:last-child td {
  border-bottom: none;
}

/* Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 1;
  visibility: visible;
  transition: all 0.3s ease;
}

.modal.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.modal-content {
  background: white;
  padding: 2.5rem;
  border-radius: 1.5rem;
  width: 90%;
  max-width: 500px;
  transform: scale(1);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.modal.hidden .modal-content {
  transform: scale(0.95);
}

.modal h2 {
  margin-bottom: 1.5rem;
  color: var(--text-main);
  font-size: 1.75rem;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
  margin-top: 2rem;
}

/* Animations */
.fade-in-up {
  animation: fadeInUp 0.8s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Messages */
.message {
  margin-top: 1rem;
  padding: 0.75rem;
  border-radius: 0.5rem;
  font-size: 0.9rem;
  text-align: center;
  display: none;
  animation: slideIn 0.3s ease;
}

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

.message.error {
  background: #fef2f2;
  color: var(--danger);
  border: 1px solid #fee2e2;
}

.message.success {
  background: #ecfdf5;
  color: var(--success);
  border: 1px solid #d1fae5;
}

/* Utilities */
.muted {
  color: var(--text-muted);
}