.main-content {
    margin-top: 100px;
    padding: 2rem;
    min-height: calc(100vh - 100px);
    background: url('../src/images/others/tech-bg.svg') no-repeat center top;
    background-size: cover;
    background-attachment: scroll;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.header-section {
    text-align: center;
    margin-bottom: 1.8rem;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.header-section h1 {
    font-size: 1.8rem;
    color: white;
    margin-bottom: 1rem;
    font-weight: 700;
}

.header-section p {
    font-size: 1.2rem;
    font-weight: 600;
    color: white;
    max-width: 600px;
    margin: 0 auto;
}

.form-container {
    border-radius: 20px;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.1);
    padding: 3rem;
    position: relative;
    overflow: hidden;
}

.form-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
}

.form-group {
    min-width: 500px;
    margin-bottom: 2rem;
}

.form-label {
    display: block;
    font-weight: 600;
    color: #333;
    margin-bottom: 1rem;
    font-size: 1rem;
}

.form-input {
    width: 100%;
    padding: 10px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #fff;
}

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

.form-textarea {
    min-height: 100px;
    resize: vertical;
    font-family: inherit;
}

.checkbox-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--light-gray);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.checkbox-item:hover {
    background: #e2e8f0;
    transform: translateY(-2px);
}

.checkbox-item.checked {
    background: rgba(37, 99, 235, 0.1);
    border-color: var(--primary-blue);
}

.checkbox-input {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--primary-blue);
}

.checkbox-label {
    font-weight: 500;
    color: #333;
    cursor: pointer;
    flex: 1;
}

.form-section {
    margin-bottom: 2.5rem;
    padding: 1.5rem;
    border-radius: 8px;
    background: rgba(248, 250, 252);
    border-left: 4px solid #3c69ff;
}

.form-section-right {
    margin-bottom: 2.5rem;
    padding: 1.5rem;
    border-radius: 8px;
    background: rgba(248, 250, 252);
    border-right: 4px solid #3c69ff;
}

.section-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.submit-container {
    text-align: center;
    margin-top: 3rem;
}

.submit-btn {
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    color: white;
    padding: 1.25rem 3rem;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.3);
    min-width: 200px;
}

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(37, 99, 235, 0.4);
}

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

.submit-btn:disabled {
    background: #94a3b8;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.success-message {
    background: var(--success-green);
    color: white;
    padding: 1rem 2rem;
    border-radius: 12px;
    text-align: center;
    font-weight: 600;
    margin-bottom: 2rem;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.success-message.show {
    opacity: 1;
    visibility: visible;
}

.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 0.5rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .mobile-menu {
        display: flex;
    }

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

    .header-section p {
        font-size: 1rem;
    }

    .form-container {
        padding: 2rem 1.5rem;
    }

    .checkbox-group {
        grid-template-columns: 1fr;
    }

    .nav-container {
        padding: 0 1rem;
    }

    .main-content {
        padding: 1rem;
    }
}

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

.form-group {
    animation: slideInUp 0.6s ease forwards;
}

.form-group:nth-child(1) { animation-delay: 0.1s; }
.form-group:nth-child(2) { animation-delay: 0.2s; }
.form-group:nth-child(3) { animation-delay: 0.3s; }
.form-group:nth-child(4) { animation-delay: 0.4s; }

.form-input.error {
    border-color: var(--error-red);
    background-color: rgba(239, 68, 68, 0.05);
}

.error-message {
    color: var(--error-red);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    display: none;
}

.error-message.show {
    display: block;
}

.icon {
    font-size: 1.2rem;
}