:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #f1f5f9;
    --secondary-hover: #e2e8f0;
    --bg-color: #eff6ff;
    --card-bg: rgba(255, 255, 255, 0.85);
    --text-main: #1e293b;
    --text-muted: #64748b;
    --danger: #ef4444;
    --success: #22c55e;
    --border-color: #cbd5e1;
    --input-bg: #ffffff;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* Typography */
h1, h2, h3, h4 {
    color: var(--text-main);
    font-weight: 600;
}

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

/* Layout Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

/* Glassmorphism Home & Form Container */
.home-bg {
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.overlay {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.glass-effect {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.popup-box {
    text-align: center;
    padding: 3rem 2rem;
    max-width: 500px;
    width: 100%;
    animation: slideUp 0.5s ease-out;
}

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

.logo-container img.cr-logo {
    width: 110px;
    height: 110px;
    border-radius: 50%;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-md);
    background: #fff;
    padding: 5px;
    object-fit: contain;
}

.popup-box h1 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    font-weight: 500;
}

.tagline {
    font-size: 0.9rem;
    color: var(--primary-hover);
    margin-bottom: 2rem;
}

.welcome-text {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.desc {
    color: var(--text-muted);
    margin-bottom: 2rem;
}

/* Buttons */
.action-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: var(--text-main) !important;
}

.btn-secondary:hover {
    background-color: var(--secondary-hover);
    transform: translateY(-2px);
}

/* Registration Form Styles */
.form-container {
    max-width: 800px;
    margin: 2rem auto;
    padding: 2.5rem;
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

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

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

@media (max-width: 768px) {
    .form-grid {
        grid-template-columns: 1fr;
    }
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: flex;
    align-items: center;
}

.form-label .required {
    color: var(--danger);
    margin-left: 0.25rem;
}

.form-control {
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    background-color: var(--input-bg);
    color: var(--text-main);
    transition: all 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1em;
}

.input-group {
    display: flex;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.input-group:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.input-group-text {
    background-color: var(--secondary-color);
    padding: 0.75rem 1rem;
    color: var(--text-muted);
    font-weight: 500;
    border-right: 1px solid var(--border-color);
}

.input-group .form-control {
    border: none;
    border-radius: 0;
    flex: 1;
}
.input-group .form-control:focus {
    box-shadow: none;
}

.file-upload-box {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    background: #fafafa;
}

.file-upload-box:hover {
    border-color: var(--primary-color);
    background: var(--bg-color);
}

.tooltip-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background-color: var(--text-muted);
    color: white;
    font-size: 10px;
    margin-left: 5px;
    cursor: help;
    position: relative;
}

.tooltip-icon .tooltip-text {
    visibility: hidden;
    width: 250px;
    background-color: #333;
    color: #fff;
    text-align: center;
    border-radius: 6px;
    padding: 5px 10px;
    position: absolute;
    z-index: 1;
    bottom: 125%; 
    left: 50%;
    margin-left: -125px;
    opacity: 0;
    transition: opacity 0.3s;
    font-size: 12px;
    text-transform: none;
    line-height: 1.4;
    font-weight: normal;
}

.tooltip-icon:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}

.form-footer {
    margin-top: 2rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.form-notes {
    font-size: 0.875rem;
    color: var(--text-muted);
}