.esk-calculator-container {
    max-width: 800px;
    margin: 0 auto;
}

.esk-header {
    text-align: center;
    margin-bottom: 35px;
}

.esk-header h1 {
    margin-bottom: 10px;
}

.esk-header p {
    font-size: 1.1em;
    margin: 0;
}

.esk-card {
    display: block;
    background: #ffffff;
    border-radius: 20px;
    padding: 40px;
    margin-bottom: 30px;
}

.esk-choice-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.esk-choice-card {
    padding: 30px;
    background-color: rgba(55, 119, 160, 0.15);
    border: 2px solid rgba(55, 119, 160, 0.35);
    border-radius: 16px;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

.esk-choice-card:hover {
    transform: translateY(-5px);
    box-shadow: 0px 6px 10px 0px rgba(0, 0, 0, 0.2);
}

.esk-choice-icon {
    display: flex;
    flex-direction: row;
    justify-content: center;
    margin-bottom: 20px;
}

.esk-choice-icon svg {
    display: block;
    width: 70px;
    height: 70px;
}

.esk-choice-card h3 {
    font-size: 1.5em;
    margin-bottom: 10px;
}

.esk-choice-card p {
    opacity: 0.9;
    margin: 0;
}

.esk-progress-bar {
    width: 100%;
    height: 8px;
    background: #e8ecef;
    border-radius: 10px;
    margin-bottom: 30px;
    overflow: hidden;
}

.esk-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #4CAF50 0%, #45a049 100%);
    border-radius: 10px;
    transition: width 0.4s ease;
}

.esk-question-section {
    display: none;
    animation: fadeIn 0.4s ease;
}

.esk-question-section.active {
    display: block;
}

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

.esk-question-title {
    font-size: 1.4em;
    font-weight: 600;
    margin-bottom: 20px;
}

.esk-question-number {
    display: inline-block;
    background: #3777a0;
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    text-align: center;
    line-height: 32px;
    font-size: 0.9em;
    margin-right: 12px;
    font-weight: 600;
}

.esk-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 25px;
}

.esk-option-btn {
    background: #ffffff;
    border: 2px solid #f0f0f0;
    padding: 18px 24px;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1em;
    text-align: left;
    font-weight: 600;
    color: #3c3c3c;
}

.esk-option-btn:hover {
    border-color: rgba(55,119,160,0.35);
    background: rgba(55,119,160,0.15);
    color: #000000;
    transform: translateX(5px);
}

.esk-option-btn.selected {
    background: #3777a0;
    color: #ffffff;
    border-color: #3777a0;
}

.esk-nav-buttons {
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
    flex-wrap: wrap;
    gap: 10px;
}

.esk-nav-buttons > div {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.esk-btn {
    height: 51px;
    padding: 5px 25px;
    border: none;
    border-radius: 100px;
    font-size: 15px;
    font-weight: 600;
    transition-duration: 0.2s;
    line-height: 1.23;
    cursor: pointer;
    transition: .2s;
}

.esk-btn-primary {
    background-color: #3777a0;
    color: #ffffff;
}

.esk-btn-primary:hover {
    box-shadow: 0px 6px 10px 0px rgba(0, 0, 0, 0.2);
}

.esk-btn-secondary {
    background: #ecf0f1;
    color: #000000;
}

.esk-btn-secondary:hover {
    background: #d5dbde;
}

.esk-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.esk-result-section {
    display: none;
    text-align: center;
}

.esk-result-section.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

.esk-result-icon {
    display: flex;
    flex-direction: row;
    justify-content: center;
    margin-bottom: 20px;
}

.esk-result-icon svg {
    display: block;
    width: 70px;
    height: 70px;
}

.esk-result-title {
    margin-bottom: 15px;
}

.esk-result-success {
    color: #27ae60;
}

.esk-result-fail {
    color: #e74c3c;
}

.esk-result-text {
    font-size: 1.1em;
    line-height: 1.6;
    color: #555;
    margin-bottom: 25px;
}

.esk-answer-summary {
    text-align: left;
    margin: 30px 0;
    background: #f8f9fa;
    padding: 25px;
    border-radius: 12px;
}

.esk-answer-summary h3 {
    margin-bottom: 20px;
    font-size: 1.3em;
}

.esk-answer-item {
    display: flex;
    align-items: flex-start;
    padding: 12px;
    margin-bottom: 10px;
    border-radius: 8px;
    background: white;
    border-left: 4px solid transparent;
}

.esk-answer-item.pass {
    border-left-color: #27ae60;
}

.esk-answer-item.fail {
    border-left-color: #e74c3c;
}

.esk-answer-icon {
    margin-top: 4px;
    margin-right: 14px;
}

.esk-answer-icon > svg {
    display: block;
    width: 18px;
    height: 18px;
}

.esk-answer-content {
    flex: 1;
}

.esk-answer-question {
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 4px;
    font-size: 0.95em;
}

.esk-answer-value {
    color: #7f8c8d;
    font-size: 0.9em;
}

.esk-requirements-box {
    background: #f8f9fa;
    border-left: 4px solid #3498db;
    padding: 20px;
    margin: 30px 0 0;
    text-align: left;
    border-radius: 8px;
}

.esk-requirements-box h3 {
    margin-bottom: 12px;
    font-size: 1.2em;
}

.esk-requirements-box ul {
    list-style: none;
    padding-left: 0;
}

.esk-requirements-box li {
    padding: 8px 0;
    padding-left: 28px;
    position: relative;
    color: #555;
}

.esk-requirements-box li:before {
    content: "";
    position: absolute;
    left: 0;
    width: 20px;
    height: 20px;
    margin-top: 2px;
    background-image: url("data:image/svg+xml,%3Csvg width='24' height='24' viewBox='0 0 270 270' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M222.882 50.3619C230.001 43.2127 241.542 43.2126 248.661 50.3619C255.78 57.5112 255.78 69.1021 248.661 76.2513L106.88 218.638C99.7615 225.787 88.22 225.787 81.1013 218.638L20.3391 157.615C13.2203 150.466 13.2203 138.875 20.3391 131.725C27.4578 124.576 38.9992 124.576 46.1179 131.725L93.9908 179.804L222.882 50.3619Z' fill='%2327AE60'/%3E%3C/svg%3E");
    background-position: center;
    background-repeat: no-repeat;
    background-size: contain;
}

.esk-calculator-section {
    display: none;
}

.esk-calculator-section.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

.esk-calc-title {
    margin-bottom: 14px;
}

.esk-calc-intro {
    color: #555;
    margin-bottom: 30px;
    line-height: 1.6;
}

.esk-window-input-group {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 20px;
}

.esk-input-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr auto;
    gap: 15px;
    align-items: end;
    margin-bottom: 15px;
}

.esk-input-group {
    display: flex;
    flex-direction: column;
}

.esk-input-group label {
    font-size: 0.9em;
    font-weight: 600;
    color: #555;
    margin-bottom: 6px;
}

.esk-input-group input {
    height: 44px;
    padding: 5px 12px;
    border: 2px solid #e0e6ed;
    border-radius: 8px;
    font-size: 1em;
    transition: border-color 0.3s ease;
}

.esk-input-group input:focus {
    outline: none;
    border-color: #3498db;
}

.esk-delete-btn {
    background: #e74c3c;
    color: white;
    border: none;
    height: 44px;
    padding: 5px 16px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.esk-delete-btn:hover {
    background: #c0392b;
}

.esk-delete-btn > svg {
    display: block;
    width: 16px;
    height: 16px;
    margin: 0 auto;
}

.esk-add-window-btn {
    background: #ecf0f1;
    color: #2c3e50;
    border: 2px dashed #bdc3c7;
    padding: 14px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    width: 100%;
    transition: all 0.3s ease;
}

.esk-add-window-btn:hover {
    background: #d5dbde;
    border-color: #95a5a6;
}

.esk-summary-box {
    padding: 30px;
    background-color: rgba(55, 119, 160, 0.15);
    border: 2px solid rgba(55, 119, 160, 0.35);
    border-radius: 16px;
    margin: 30px 0;
}

.esk-summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 15px;
    font-size: 1.1em;
}

.esk-summary-row.esk-summary-total {
    font-size: 1.4em;
    font-weight: 700;
    padding-top: 15px;
    margin-bottom: 0;
    border-top: 2px solid rgba(55, 119, 160, 0.15);
}

.esk-warning-box {
    background: #fff3cd;
    border-left: 4px solid #ffc107;
    padding: 15px;
    border-radius: 8px;
    margin: 20px 0;
    color: #856404;
}

.esk-contact-form {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 12px;
    margin-top: 30px;
}

.esk-contact-form h3 {
    margin-bottom: 20px;
    font-size: 1.4em;
}

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

.esk-form-group label {
    display: block;
    font-weight: 600;
    color: #555;
    margin-bottom: 8px;
}

.esk-form-group input {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e6ed;
    border-radius: 8px;
    font-size: 1em;
}

.esk-form-group input:focus {
    outline: none;
    border-color: #3498db;
}

.esk-submit-btn {
    background: #27ae60;
    color: white;
    padding: 16px 40px;
    border: none;
    border-radius: 10px;
    font-size: 1.1em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
}

.esk-submit-btn:hover {
    background: #229954;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(39, 174, 96, 0.3);
}

.esk-disclaimer {
    font-size: 0.9em;
    color: #7f8c8d;
    font-style: italic;
    margin-top: 20px;
    padding: 15px;
    background: #ecf0f1;
    border-radius: 8px;
}

@media (max-width: 768px) {
    .esk-card {
        padding: 25px;
    }

    .esk-choice-grid {
        grid-template-columns: 1fr;
    }

    .esk-input-row {
        grid-template-columns: 1fr;
    }

    .esk-delete-btn {
        width: 100%;
    }

    .esk-nav-buttons {
        flex-direction: column;
    }

    .esk-nav-buttons > div {
        width: 100%;
        flex-direction: column;
    }

    .esk-nav-buttons .esk-btn {
        width: 100%;
    }
}

@media (max-width: 479px) {
    .esk-card {
        padding: 20px;
    }

    .esk-summary-box {
        padding: 20px;
    }

    .esk-contact-form {
        padding: 20px;
    }
}