:root {
    --primary-color: #5A3BED;
    --primary-gradient: linear-gradient(135deg, #5A3BED 0%, #667eea 100%);
    --secondary-color: #667eea;
    --accent-color: #764ba2;
    --text-primary: #23272f;
    --text-secondary: #666;
    --bg-white: #ffffff;
    --bg-light: #f8f9fa;
    --border-light: rgba(0, 0, 0, 0.08);
    --shadow-light: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-medium: 0 4px 16px rgba(0, 0, 0, 0.12);
    --border-radius: 8px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.demo-request-section {
    position: relative;
    padding-top: 20px;
    padding-bottom: 30px;
}

.demo-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
}

.demo-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(circle at 25% 25%, rgba(90, 59, 237, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(102, 126, 234, 0.05) 0%, transparent 50%);
    background-size: 400px 400px;
}

.demo-gradient {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #f8f9ff 0%, #ffffff 50%, #f0f4ff 100%);
}

.demo-container {
    max-width: 700px;
    margin: 0 auto;
    padding: 0 20px;
}

.demo-header {
    text-align: center;
    margin-bottom: 30px;
}

.demo-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(90, 59, 237, 0.1);
    color: var(--primary-color);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 24px;
    border: 1px solid rgba(90, 59, 237, 0.2);
}

.demo-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 15px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.demo-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.5;
    max-width: 500px;
    margin: 0 auto;
}

.demo-form-card {
    background: var(--bg-white);
    border-radius: var(--border-radius-lg);
    padding: 35px;
    box-shadow: 
        0 4px 20px rgba(0, 0, 0, 0.06),
        0 1px 4px rgba(0, 0, 0, 0.04);
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.demo-form-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary-gradient);
}

.alert {
    padding: 12px 16px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.alert-success {
    background: rgba(40, 202, 66, 0.1);
    color: #1a7c2e;
    border: 1px solid rgba(40, 202, 66, 0.2);
}

.alert-error {
    background: rgba(220, 53, 69, 0.1);
    color: #c82333;
    border: 1px solid rgba(220, 53, 69, 0.2);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
    font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius);
    font-size: 0.95rem;
    transition: var(--transition-smooth);
    background: var(--bg-white);
    color: var(--text-primary);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(90, 59, 237, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.form-help {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 4px;
    line-height: 1.3;
    font-style: italic;
}

.input-with-icon {
    position: relative;
    display: flex;
    align-items: stretch;
}

.input-with-icon i {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    min-width: 45px;
    background: rgba(90, 59, 237, 0.08);
    border: 1px solid var(--border-light);
    border-right: none;
    border-radius: var(--border-radius) 0 0 var(--border-radius);
    color: var(--primary-color);
    font-size: 1rem;
    transition: var(--transition-smooth);
}

.input-with-icon input,
.input-with-icon select {
    border-radius: 0 var(--border-radius) var(--border-radius) 0 !important;
    border-left: none !important;
    flex: 1;
}

.input-with-icon select {
    appearance: none;
    -webkit-appearance: none;
    -moz-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='%235A3BED' 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 12px center;
    background-size: 16px;
    padding-right: 40px !important;
}

.textarea-with-icon {
    align-items: flex-start;
}

.textarea-with-icon i {
    align-items: flex-start;
    padding-top: 15px;
    border-radius: var(--border-radius) 0 0 0;
    font-size: 1.1rem;
    min-height: 80px;
}

.textarea-with-icon textarea {
    border-radius: 0 var(--border-radius) var(--border-radius) 0 !important;
    border-left: none !important;
    flex: 1;
}

.input-with-icon:hover i {
    background: rgba(90, 59, 237, 0.12);
    color: var(--primary-color);
}

.input-with-icon input:focus,
.input-with-icon select:focus,
.input-with-icon textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(90, 59, 237, 0.1);
}

.input-with-icon:has(input:focus) i,
.input-with-icon:has(select:focus) i,
.input-with-icon:has(textarea:focus) i {
    background: rgba(90, 59, 237, 0.15);
    border-color: var(--primary-color);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-actions {
    text-align: center;
    padding-top: 15px;
    margin-top: 10px;
}

.demo-submit-btn {
    background: var(--primary-gradient);
    color: var(--bg-white);
    border: none;
    padding: 18px 40px;
    border-radius: var(--border-radius-lg);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    box-shadow: 0 4px 15px rgba(90, 59, 237, 0.25);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-width: 250px;
    justify-content: center;
}

.demo-submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(90, 59, 237, 0.35);
}

.demo-submit-btn:active {
    border-color: #4A2BC8;
    box-shadow:
        0 2px 8px rgba(74, 43, 200, 0.4),
        0 1px 4px rgba(74, 43, 200, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
}



@media (max-width: 768px) {
    .demo-request-section {
        padding-top: 20px;
        padding-bottom: 25px;
    }

    .demo-container {
        padding: 0 15px;
    }

    .demo-header {
        margin-bottom: 25px;
    }

    .demo-header h1 {
        font-size: 2rem;
    }

    .demo-desc {
        font-size: 1rem;
    }

    .demo-form-card {
        padding: 25px 18px;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .demo-submit-btn {
        width: 100%;
        min-width: auto;
    }
}

@media (max-width: 480px) {
    .demo-request-section {
        padding-top: 15px;
        padding-bottom: 20px;
    }

    .demo-header h1 {
        font-size: 1.8rem;
    }

    .demo-header {
        margin-bottom: 20px;
    }

    .demo-form-card {
        padding: 20px 15px;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 10px 12px;
        font-size: 0.9rem;
    }
}