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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #ffffff;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    position: relative;
    overflow-x: hidden;
}

/* Form container */
.form-container {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 40px;
    max-width: 500px;
    width: 100%;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(0, 0, 0, 0.1);
    animation: slideUp 0.8s ease-out;
}

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

/* Form header */
.form-header {
    text-align: center;
    margin-bottom: 40px;
}

.form-header .icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
}

.form-header h2 {
    color: #2d3748;
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
}

.form-header p {
    color: #718096;
    font-size: 16px;
}

/* Form groups */
.form-group {
    margin-bottom: 25px;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #2d3748;
    font-weight: 500;
    font-size: 14px;
    transition: color 0.3s ease;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 16px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 16px;
    transition: all 0.3s ease;
    background: #f8fafc;
    color: #2d3748;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    background: white;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group input:focus + .focus-border,
.form-group textarea:focus + .focus-border {
    transform: scaleX(1);
}

.focus-border {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

/* File upload */
.file-upload {
    position: relative;
}

.file-input-wrapper {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
}

.file-input-wrapper input[type="file"] {
    position: absolute;
    left: -9999px;
    opacity: 0;
}

.file-input-display {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    border: 2px dashed #cbd5e0;
    border-radius: 12px;
    background: #f8fafc;
    cursor: pointer;
    transition: all 0.3s ease;
    color: #718096;
    min-height: 60px;
    user-select: none;
}

.file-input-display:hover {
    border-color: #667eea;
    background: #f0f4ff;
    color: #667eea;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.15);
}

.file-input-display:active {
    transform: translateY(0);
}

.file-input-display svg {
    margin-right: 8px;
    transition: transform 0.3s ease;
}

.file-input-display:hover svg {
    transform: scale(1.1);
}

.file-info {
    margin-top: 8px;
    font-size: 14px;
    color: #718096;
    padding: 8px 12px;
    background: #f8fafc;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
}

.file-selected {
    border-color: #667eea !important;
    background: #f0f4ff !important;
    color: #667eea !important;
    border-style: solid !important;
}

.file-selected svg {
    color: #667eea;
}

/* Submit button */
.submit-btn {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    margin-top: 20px;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 30px rgba(102, 126, 234, 0.4);
}

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

.btn-text {
    transition: opacity 0.3s ease;
}

.btn-loader {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s linear infinite;
    opacity: 0;
    transition: opacity 0.3s ease;
}

@keyframes spin {
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

.submit-btn.loading .btn-text {
    opacity: 0;
}

.submit-btn.loading .btn-loader {
    opacity: 1;
}

/* Success message */
.success-message {
    display: none;
    background: #f0fff4;
    color: #38a169;
    padding: 16px;
    border-radius: 12px;
    border: 1px solid #c6f6d5;
    margin-top: 20px;
    display: flex;
    align-items: center;
    animation: slideIn 0.5s ease-out;
}

.success-message svg {
    margin-right: 8px;
}

.success-message.show {
    display: flex;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Responsive design */
@media (max-width: 768px) {
    .form-container {
        padding: 30px 20px;
        margin: 10px;
    }
    
    .form-header h2 {
        font-size: 24px;
    }
    
    .form-group input,
    .form-group textarea {
        padding: 14px;
        font-size: 16px;
    }
}

/* Input validation states */
.form-group input:valid {
    border-color: #68d391;
}

.form-group input:invalid:not(:placeholder-shown) {
    border-color: #f56565;
}

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

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #667eea;
}