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

:root {
    --primary-color: #4f46e5;
    --primary-light: #6366f1;
    --primary-dark: #4338ca;
    --secondary-color: #8b5cf6;
    --secondary-light: #a78bfa;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #0ea5e9;
    --gray-50:  #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2933;
    --gray-900: #111827;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

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

body {
    background-color: #f9fafb;
    color: #111827;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Enhanced Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: #1f2937;
}

/* Gradient Text */
.gradient-text {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-weight: 700;
}

/* Enhanced Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.625rem 1.5rem;
    font-weight: 500;
    font-size: 0.875rem;
    line-height: 1.25rem;
    border-radius: 0.5rem;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    text-decoration: none;
    gap: 0.5rem;
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::after {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: white;
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: var(--gray-50);
    border-color: var(--gray-400);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.btn-danger {
    background: linear-gradient(135deg, #ef4444, #f87171);
    color: white;
    box-shadow: var(--shadow);
}

.btn-danger:hover {
    background: linear-gradient(135deg, #dc2626, #ef4444);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-success {
    background: linear-gradient(135deg, #10b981, #34d399);
    color: white;
    box-shadow: var(--shadow);
}

.btn-success:hover {
    background: linear-gradient(135deg, #059669, #10b981);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

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

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

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
}

.btn-lg {
    padding: 0.75rem 2rem;
    font-size: 1rem;
}

.btn-full {
    width: 100%;
}

.btn-icon {
    padding: 0.5rem;
    border-radius: 0.375rem;
}

/* Enhanced Cards */
.card {
    background: white;
    border-radius: 1rem;
    box-shadow: var(--shadow);
    padding: 1.5rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--gray-100);
    position: relative;
    overflow: hidden;
}

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

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

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.card-header {
    padding-bottom: 1rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--gray-100);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
}

.card-body {
    color: var(--gray-700);
}

.card-footer {
    padding-top: 1rem;
    margin-top: 1rem;
    border-top: 1px solid var(--gray-100);
}

.card-gradient {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

/* Enhanced Form Elements */
.input-field {
    width: 100%;
    padding: 0.625rem 1rem;
    font-size: 0.875rem;
    line-height: 1.25rem;
    background-color: white;
    border: 1px solid var(--gray-300);
    border-radius: 0.75rem;
    transition: all 0.2s;
    color: var(--gray-900);
}

.input-field:focus {
    outline: none;
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
    transform: translateY(-1px);
}

.input-field:disabled {
    background-color: var(--gray-100);
    color: var(--gray-500);
    cursor: not-allowed;
}

.input-field-error {
    border-color: var(--danger-color);
}

.input-field-error:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

/* Enhanced Select */
.select-field {
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.5rem center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
    padding-right: 2.5rem;
}

/* Enhanced Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 500;
    line-height: 1;
    border-radius: 9999px;
    gap: 0.25rem;
    white-space: nowrap;
}

.badge-primary {
    background-color: rgba(79, 70, 229, 0.1);
    color: var(--primary-color);
    border: 1px solid rgba(79, 70, 229, 0.2);
}

.badge-success {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.badge-danger {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--danger-color);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.badge-warning {
    background-color: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.badge-info {
    background-color: rgba(14, 165, 233, 0.1);
    color: var(--info-color);
    border: 1px solid rgba(14, 165, 233, 0.2);
}

/* Enhanced Tables */
.table-container {
    overflow-x: auto;
    border-radius: 0.75rem;
    box-shadow: var(--shadow-sm);
}

table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: white;
}

thead {
    background: linear-gradient(135deg, var(--gray-50), var(--gray-100));
}

th {
    padding: 1rem 1.5rem;
    text-align: left;
    font-weight: 600;
    color: var(--gray-700);
    border-bottom: 2px solid var(--gray-200);
    white-space: nowrap;
}

td {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--gray-100);
    color: var(--gray-700);
}

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

tr:hover td {
    background-color: var(--gray-50);
}

/* Enhanced Messages */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 0.75rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    border: 1px solid transparent;
}

.alert-icon {
    flex-shrink: 0;
    font-size: 1.25rem;
}

.alert-content {
    flex: 1;
}

.alert-title {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.alert-success {
    background-color: rgba(16, 185, 129, 0.1);
    border-color: rgba(16, 185, 129, 0.2);
    color: #065f46;
}

.alert-error {
    background-color: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.2);
    color: #991b1b;
}

.alert-warning {
    background-color: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.2);
    color: #92400e;
}

.alert-info {
    background-color: rgba(14, 165, 233, 0.1);
    border-color: rgba(14, 165, 233, 0.2);
    color: #164e63;
}

/* Enhanced Loading States */
.spinner {
    display: inline-block;
    width: 2rem;
    height: 2rem;
    border: 3px solid rgba(79, 70, 229, 0.1);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

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

.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

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

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
}

.form-helper {
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-top: 0.25rem;
}

.form-error {
    font-size: 0.75rem;
    color: var(--danger-color);
    margin-top: 0.25rem;
}

/* Enhanced Navigation */
.nav-link {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    color: var(--gray-600);
    text-decoration: none;
    border-radius: 0.5rem;
    transition: all 0.2s;
    gap: 0.5rem;
}

.nav-link:hover {
    color: var(--primary-color);
    background-color: var(--gray-50);
}

.nav-link.active {
    color: var(--primary-color);
    background-color: rgba(79, 70, 229, 0.1);
    font-weight: 500;
}

/* Enhanced Layout */
.container {
    width: 100%;
    margin-right: auto;
    margin-left: auto;
    padding-right: 1rem;
    padding-left: 1rem;
}

@media (min-width: 640px) {
    .container {
        max-width: 640px;
    }
}

@media (min-width: 768px) {
    .container {
        max-width: 768px;
    }
}

@media (min-width: 1024px) {
    .container {
        max-width: 1024px;
    }
}

@media (min-width: 1280px) {
    .container {
        max-width: 1280px;
    }
}

/* Utility Classes */
.text-gradient {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.glass-effect {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hover-lift {
    transition: transform 0.2s ease-in-out;
}

.hover-lift:hover {
    transform: translateY(-2px);
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

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

.slide-up {
    animation: slideUp 0.3s ease-out;
}

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

/* Avatar */
.avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    font-weight: 600;
    font-size: 1rem;
}

.avatar-sm {
    width: 2rem;
    height: 2rem;
    font-size: 0.875rem;
}

.avatar-lg {
    width: 3rem;
    height: 3rem;
    font-size: 1.25rem;
}

/* Divider */
.divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gray-300), transparent);
    margin: 1.5rem 0;
}

.btn-white {
    background: white;
    color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.btn-white:hover {
    background: var(--gray-50);
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-outline-white {
    background: transparent;
    color: white;
    border: 2px solid white;
}

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

.spinner-sm {
    width: 1rem;
    height: 1rem;
    border-width: 2px;
}

/* Custom Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

.slide-up {
    animation: slideUp 0.4s ease-out;
}

.animate-pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Line Clamp Utilities */
.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.line-clamp-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a1a1a1;
}

/* Tooltip */
.tooltip {
    position: relative;
}

.tooltip:hover .tooltip-content {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.tooltip-content {
    position: absolute;
    z-index: 50;
    padding: 0.5rem 0.75rem;
    font-size: 0.75rem;
    color: white;
    background-color: #374151;
    border-radius: 0.375rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transform: translateY(0.5rem);
    transition: all 0.2s ease;
    pointer-events: none;
}

.tooltip-content::before {
    content: '';
    position: absolute;
    top: -4px;
    left: 50%;
    transform: translateX(-50%);
    border-width: 4px;
    border-style: solid;
    border-color: transparent transparent #374151 transparent;
}

/* Focus Styles */
.focus-visible:focus {
    outline: none;
    ring: 2px;
    ring-color: var(--primary-color);
    ring-offset: 2px;
}

/* Print Styles */
@media print {
    .no-print {
        display: none !important;
    }
}

/* Enhanced Input Field Styles */
.input-field {
    @apply w-full px-4 py-3 text-base leading-tight transition-all duration-200
           bg-white border border-gray-300 rounded-lg shadow-sm
           placeholder:text-gray-400
           focus:outline-none focus:ring-2 focus:ring-blue-500/20 focus:border-blue-500
           hover:border-gray-400
           disabled:bg-gray-50 disabled:text-gray-500 disabled:cursor-not-allowed
           disabled:border-gray-200;
}

.input-field-error {
    @apply border-red-300 bg-red-50
           focus:border-red-500 focus:ring-red-500/20
           hover:border-red-400;
}

/* Enhanced Select Field */
.select-field {
    @apply pr-10 cursor-pointer;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%239ca3af' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.5rem center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
}

/* Spinner Sizes */
.spinner-sm {
    width: 1rem;
    height: 1rem;
    border-width: 2px;
}

.spinner-md {
    width: 1.5rem;
    height: 1.5rem;
    border-width: 3px;
}

.spinner-lg {
    width: 2rem;
    height: 2rem;
    border-width: 4px;
}

/* Focus ring for groups */
.focus-ring {
    @apply absolute inset-0 rounded-lg pointer-events-none border-2 border-transparent 
           group-focus-within:border-blue-300 transition-colors;
}

/* Enhanced transitions */
.transition-all {
    transition-property: all;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    transition-duration: 150ms;
}

/* Custom scrollbar for textarea */
textarea.input-field::-webkit-scrollbar {
    width: 8px;
}

textarea.input-field::-webkit-scrollbar-track {
    @apply bg-gray-100 rounded;
}

textarea.input-field::-webkit-scrollbar-thumb {
    @apply bg-gray-300 rounded hover:bg-gray-400;
}

/* Password strength colors */
.bg-green-500 {
    background-color: #10b981;
}

.bg-yellow-500 {
    background-color: #f59e0b;
}

.bg-orange-500 {
    background-color: #f97316;
}

.bg-red-500 {
    background-color: #ef4444;
}

/* Custom placeholder styles */
.input-field::placeholder {
    @apply text-gray-400 opacity-100;
}

.input-field::-webkit-input-placeholder {
    @apply text-gray-400 opacity-100;
}

.input-field::-moz-placeholder {
    @apply text-gray-400 opacity-100;
}

.input-field:-ms-input-placeholder {
    @apply text-gray-400 opacity-100;
}

.input-field:-moz-placeholder {
    @apply text-gray-400 opacity-100;
}

/* Enhanced form label */
.form-label {
    @apply text-sm font-medium text-gray-700 mb-1;
}

/* Enhanced form helper text */
.form-helper {
    @apply text-xs text-gray-500 mt-1;
}

/* Enhanced error message */
.form-error {
    @apply text-xs text-red-600 mt-1;
}

/* Loading state */
.input-loading {
    @apply relative;
}

.input-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    right: 0.75rem;
    transform: translateY(-50%);
    width: 1rem;
    height: 1rem;
    border: 2px solid #3b82f6;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}