:root {
    /* Color Variables */
    --primary: #4361ee;
    --primary-dark: #3a56d4;
    --secondary: #7209b7;
    --accent: #f72585;
    --success: #06d6a0;
    --warning: #ffd166;
    --danger: #ef476f;
    --info: #118ab2;

    /* Gray Scale */
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;

    /* Rainbow Colors */
    --rainbow-1: #FF3CAC;
    --rainbow-2: #784BA0;
    --rainbow-3: #2B86C5;
    --rainbow-4: #4CC9F0;

    /* White and Black */
    --white: #ffffff;
    --black: #2b2b2b;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border Radius */
    --border-radius-sm: 0.375rem;
    --border-radius: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 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);

    /* Transitions */
    --transition: all 0.3s ease;
    --transition-slow: all 0.5s ease;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--gray-800);
    background: linear-gradient(135deg,
        rgba(255, 60, 172, 0.1) 0%,
        rgba(120, 75, 160, 0.1) 25%,
        rgba(43, 134, 197, 0.1) 50%,
        rgba(76, 201, 240, 0.1) 100%);
    min-height: 100vh;
}

.rainbow-bg {
    background: linear-gradient(-45deg,
        var(--rainbow-1),
        var(--rainbow-2),
        var(--rainbow-3),
        var(--rainbow-4));
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    color:  black;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-muted {
    color: var(--gray-600) !important;
}

/* Layout */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.main-content {
    min-height: calc(100vh - 80px);
    padding: var(--spacing-xl) 0;
    position: relative;
}

/* Header Styles */
.app-header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-image {
    height: 40px;
    width: auto;
    transition: var(--transition);
}

.logo-image:hover {
    transform: scale(1.05);
}

.nav-main {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-link {
    color: var(--gray-700);
    text-decoration: none;
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
    background: rgba(67, 97, 238, 0.1);
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--gray-700);
    font-weight: 500;
}

.admin-badge {
    background: linear-gradient(45deg, var(--rainbow-1), var(--rainbow-3));
    color: var(--white);
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* Card Styles */
.content-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-xl);
    border: 1px solid rgba(255, 255, 255, 0.2);
    margin-bottom: var(--spacing-xl);
}

.card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

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

.card-title {
    color: var(--gray-800);
    font-color: white;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    gap: var(--spacing-sm);
    font-size: 0.95rem;
}

.btn:hover {
    transform: translateY(-1px);
}

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

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

.btn-success {
    background: linear-gradient(135deg, var(--success), #05c290);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-success:hover {
    background: linear-gradient(135deg, #05c290, var(--success));
    box-shadow: var(--shadow-lg);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger), #e63c5f);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-danger:hover {
    background: linear-gradient(135deg, #e63c5f, var(--danger));
    box-shadow: var(--shadow-lg);
}

.btn-info {
    background: linear-gradient(135deg, var(--info), #0f7a9d);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-info:hover {
    background: linear-gradient(135deg, #0f7a9d, var(--info));
    box-shadow: var(--shadow-lg);
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning), #f5c84d);
    color: var(--black);
    box-shadow: var(--shadow-md);
}

.btn-warning:hover {
    background: linear-gradient(135deg, #f5c84d, var(--warning));
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--gray-300);
    color: var(--gray-700);
}

.btn-outline:hover {
    background: var(--gray-100);
    border-color: var(--gray-400);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* Form Styles */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--gray-700);
}

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    background: var(--white);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
}

/* Flash Messages */
.flash-messages {
    margin-bottom: var(--spacing-lg);
}

.flash {
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-sm);
    display: flex;
    justify-content: between;
    align-items: center;
    animation: slideIn 0.3s ease;
}

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

.flash.success {
    background: rgba(6, 214, 160, 0.1);
    border-left: 4px solid var(--success);
    color: #056d4f;
}

.flash.error {
    background: rgba(239, 71, 111, 0.1);
    border-left: 4px solid var(--danger);
    color: #c53030;
}

.flash.info {
    background: rgba(17, 138, 178, 0.1);
    border-left: 4px solid var(--info);
    color: #2c5282;
}

.flash.warning {
    background: rgba(255, 209, 102, 0.1);
    border-left: 4px solid var(--warning);
    color: #b7791f;
}

.flash .close {
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    margin-left: auto;
    opacity: 0.7;
    transition: var(--transition);
}

.flash .close:hover {
    opacity: 1;
}

/* Utility Classes */
.d-flex { display: flex; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.align-center { align-items: center; }
.gap-1 { gap: var(--spacing-sm); }
.gap-2 { gap: var(--spacing-md); }
.gap-3 { gap: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.p-1 { padding: var(--spacing-sm); }
.p-2 { padding: var(--spacing-md); }
.p-3 { padding: var(--spacing-lg); }
.p-4 { padding: var(--spacing-xl); }

.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-3xl { font-size: 1.875rem; }

.font-light { font-weight: 300; }
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }

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

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

.slide-in-left {
    animation: slideInLeft 0.6s ease-out;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-right {
    animation: slideInRight 0.6s ease-out;
}

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

/* Badges */
.badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 0.25rem;
    text-transform: uppercase;
}

.badge-primary {
    background: rgba(67, 97, 238, 0.1);
    color: var(--primary);
}

.badge-success {
    background: rgba(6, 214, 160, 0.1);
    color: var(--success);
}

.badge-danger {
    background: rgba(239, 71, 111, 0.1);
    color: var(--danger);
}

.badge-warning {
    background: rgba(255, 209, 102, 0.1);
    color: var(--warning);
}

.badge-info {
    background: rgba(17, 138, 178, 0.1);
    color: var(--info);
}

/* Footer */
.app-footer {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding: var(--spacing-lg) 0;
    text-align: center;
    color: var(--gray-600);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .nav-main {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--spacing-sm);
    }

    .nav-link {
        padding: var(--spacing-sm);
    }

    .content-card {
        padding: var(--spacing-lg);
    }

    .main-content {
        padding: var(--spacing-md) 0;
    }

    .d-flex {
        flex-direction: column;
    }

    .justify-between {
        justify-content: flex-start;
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-xl: 1.5rem;
        --spacing-2xl: 2rem;
    }

    .content-card {
        padding: var(--spacing-md);
    }

    .btn {
        width: 100%;
        justify-content: center;
    }
}

/* Print Styles */
@media print {
    .app-header,
    .app-footer,
    .btn {
        display: none !important;
    }

    .content-card {
        box-shadow: none;
        border: none;
        background: none;
    }

    body {
        background: none;
    }
}