.checker-section {
    padding: var(--spacing-narrow-l) 0;
}

.checker-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-narrow-l);
    margin-bottom: var(--spacing-standard-l);
}

.checker-icon {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
}

.checker-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.checker-title {
    font-family: var(--font-manrope);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-title-large);
    color: var(--color-primary-full);
    line-height: var(--line-height-tight);
}

.description-section {
    background: var(--color-white);
    border-radius: var(--radius-standard);
    padding: var(--spacing-narrow-l);
    box-shadow: var(--shadow-card);
    margin-bottom: var(--spacing-standard-l);
}

.description-text {
    font-family: var(--font-inter);
    font-weight: var(--font-weight-regular);
    font-size: var(--font-size-content);
    color: var(--color-black);
    line-height: var(--line-height-normal);
}

.description-text p {
    margin-bottom: var(--spacing-narrow-m);
}

.description-text p:last-child {
    margin-bottom: 0;
}

.description-text ul {
    list-style: disc;
    margin: var(--spacing-narrow-m) 0;
    padding-left: var(--spacing-narrow-l);
}

.description-text li {
    margin-bottom: var(--spacing-narrow-s);
}

.description-text li:last-child {
    margin-bottom: 0;
}

/* Input Section */
.input-section {
    background: var(--color-white);
    border-radius: var(--radius-standard);
    padding: var(--spacing-narrow-l);
    box-shadow: var(--shadow-card);
}

.input-title {
    font-family: var(--font-manrope);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-title-large);
    color: var(--color-primary-full);
    line-height: var(--line-height-tight);
    margin-bottom: var(--spacing-narrow-l);
}

.input-container {
    display: flex;
    gap: var(--spacing-narrow-l);
    align-items: center;
    width: 100%;
}

.code-input {
    flex: 1;
    background: var(--color-white-gradient);
    border: none;
    border-radius: var(--radius-standard);
    padding: var(--spacing-narrow-m);
    font-family: var(--font-inter);
    font-size: var(--font-size-content);
    color: var(--color-black);
    box-shadow: var(--shadow-inner);
    transition: all 0.3s ease;
    min-width: 200px;
}

.code-input::placeholder {
    color: var(--color-gray);
}

.code-input:focus {
    outline: none;
    box-shadow: var(--shadow-inner), 0 0 0 2px var(--color-primary-light);
}

.check-button {
    background: var(--color-primary-gradient);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-standard);
    padding: var(--spacing-narrow-s) var(--spacing-standard-m);
    font-family: var(--font-manrope);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-content);
    line-height: var(--line-height-button);
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    transition: all 0.3s ease;
    white-space: nowrap;
    flex-shrink: 0;
}

.check-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-card);
}

.check-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}
/* Results Section */
.results-section {
    display: flex;
    gap: var(--spacing-standard-l);
    align-items: flex-start;
    margin-top: var(--spacing-standard-l);
}

.certificate-image {
    flex-shrink: 0;
    width: 403px;
    height: 285px;
    border-radius: var(--radius-standard);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.verification-result {
    flex: 1;
    background: var(--color-success-gradient);
    border-radius: var(--radius-standard);
    padding: var(--spacing-narrow-l);
    box-shadow: var(--shadow-card);
    color: var(--color-white);
}

.verification-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-narrow-l);
    margin-bottom: var(--spacing-narrow-l);
}

.verification-icon {
    width: 32px;
    height: 25px;
    flex-shrink: 0;
}

.verification-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

.verification-title {
    font-family: var(--font-manrope);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-title-large);
    color: var(--color-white);
    line-height: var(--line-height-tight);
}

.verification-content {
    font-family: var(--font-inter);
    font-weight: var(--font-weight-regular);
    font-size: var(--font-size-content);
    color: var(--color-white);
    line-height: var(--line-height-normal);
}

.verification-content p {
    margin-bottom: var(--spacing-narrow-m);
}

.verification-content ul {
    list-style: disc;
    margin: var(--spacing-narrow-m) 0;
    padding-left: var(--spacing-narrow-l);
}

.verification-content li {
    margin-bottom: var(--spacing-narrow-s);
}

.verification-content li:last-child {
    margin-bottom: 0;
}

.error-result {
    flex: 1;
    background: var(--color-error-gradient);
    border-radius: var(--radius-standard);
    padding: var(--spacing-narrow-l);
    box-shadow: var(--shadow-card);
    color: var(--color-white);
    width: 100%;
}

.error-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-narrow-l);
    margin-bottom: var(--spacing-narrow-l);
}

.error-icon {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
}

.error-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

.error-title {
    font-family: var(--font-manrope);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-title-large);
    color: var(--color-white);
    line-height: var(--line-height-tight);
}

.error-content {
    font-family: var(--font-inter);
    font-weight: var(--font-weight-regular);
    font-size: var(--font-size-content);
    color: var(--color-white);
    line-height: var(--line-height-normal);
}

.error-content p {
    margin-bottom: var(--spacing-narrow-m);
}

.error-content ul {
    list-style: disc;
    margin: var(--spacing-narrow-m) 0 0 0;
    padding-left: var(--spacing-narrow-l);
}

.error-content li {
    margin-bottom: var(--spacing-narrow-s);
}

.error-content li:last-child {
    margin-bottom: 0;
}



/* Tablet (769px - 1024px) */
@media (max-width: 1024px) and (min-width: 769px) {
    /* Certificate Checker Tablet Responsive */
    .checker-title {
        font-size: 18px;
    }

    .input-container {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-narrow-m);
    }

    .code-input {
        width: 100%;
    }

    .check-button {
        width: 100%;
        justify-content: center;
    }
    /* Certificate Result Tablet Responsive */
    .result-title {
        font-size: 18px;
    }

    .results-section {
        flex-direction: column;
        gap: var(--spacing-narrow-l);
    }

    .error-result {
        width: 100%;
    }
    .certificate-image {
        width: 100%;
        height: 250px;
    }

    .verification-result {
        width: 100%;
    }
}

/* Mobile (up to 768px) */
@media (max-width: 768px) {
    /* Certificate Checker Mobile Responsive */
    .checker-section {
        padding: var(--spacing-standard-m) 0;
    }

    .checker-header {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-narrow-m);
        margin-bottom: var(--spacing-narrow-l);
    }

    .checker-icon {
        width: 36px;
        height: 36px;
        align-self: center;
    }

    .checker-title {
        font-size: 18px;
    }

    .description-section {
        padding: var(--spacing-narrow-m);
        margin-bottom: var(--spacing-narrow-l);
    }

    .description-text {
        font-size: 14px;
    }

    .input-section {
        padding: var(--spacing-narrow-m);
    }

    .input-title {
        font-size: 18px;
    }

    .input-container {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-narrow-m);
    }

    .code-input {
        width: 100%;
        font-size: 14px;
    }

    .check-button {
        width: 100%;
        justify-content: center;
        font-size: 14px;
    }

    .results-section {
        flex-direction: column;
        gap: var(--spacing-narrow-l);
    }

    .error-result {
        padding: var(--spacing-narrow-m);
        width: 100%;
    }

    .error-title {
        font-size: 16px;
    }

    .error-content {
        font-size: 14px;
    }

    .certificate-image {
        width: 100%;
        height: 200px;
        background-size: contain;
        background-position: center;
    }

    .verification-result {
        padding: var(--spacing-narrow-m);
        width: 100%;
    }

    .verification-title {
        font-size: 16px;
    }

    .verification-content {
        font-size: 14px;
    }

}

@media (max-width: 480px) {
    .checker-title {
        font-size: 16px;
    }
    .input-title {
        font-size: 16px;
    }
    .verification-title {
        font-size: 14px;
    }
}