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

@import url('https://fonts.googleapis.com/css2?family=Inter:ital,opsz,wght@0,14..32,100..900;1,14..32,100..900&display=swap');

:root {
    --dark-green: #19381f;
    --medium-green: #53A548;
    --light-green: #91CB3E;
    --white: #ffffff;
    --black: #000000;
}

body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    background-color: var(--white);
    color: var(--black);
}

header nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
}

.hamburger {
    width: 30px;
    cursor: pointer;
}

.logo {
    width: 40px;
    margin-inline: auto;
}

.menu-ctn {
    position: fixed;
    top: 0;
    right: -100%;
    width: 60%;
    height: 100vh;
    background: var(--dark-green);
    display: flex;
    flex-direction: column;
    padding: 2rem;
    gap: 2rem;
    transition: 0.3s ease-in-out;
    z-index: 1000;
}

.menu-ctn.show {
    right: 0;
}

.menu-ctn .x-close {
    align-self: flex-end;
    width: 25px;
    cursor: pointer;
    filter: invert(1);
}

.sidelinks {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.sidelink {
    text-decoration: none;
    color: var(--white);
    font-weight: 500;
}

main {
    padding: 2rem;
    max-width: 800px;
    margin: auto;
}

h1 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--dark-green);
    font-family: "Inter", serif;
    font-weight: 800;
}

.mode-selector {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.mode-btn {
    padding: 0.5rem 1rem;
    background: none;
    border: 2px solid var(--dark-green);
    cursor: pointer;
    border-radius: 5px;
    font-family: "Inter", serif;
    font-weight: 600;
    color: var(--dark-green);
    transition: all 0.3s ease;
}

.mode-btn.active {
    background: var(--dark-green);
    color: var(--white);
}

textarea {
    width: 100%;
    height: 120px;
    border: none;
    outline: 1px solid var(--light-green);
    border-radius: 5px;
    font-size: 1rem;
    margin-bottom: 1rem;
    resize: none;
    width: 100%;
    font-family: "Inter", serif;
    font-weight: 100;
    color: var(--dark-green);
    padding: 0.8rem 1rem;
    border-radius: 15px;
    box-shadow: rgba(0, 0, 0, 0.1) 0px 4px 12px;
    transition: 0.4s ease-in-out;
    background-color: white;
}

button {
    padding: 1rem 1.5rem;
    border: none;
    background-color: var(--dark-green);
    color: var(--light-green);
    border-radius: 0.8rem;
    cursor: pointer;
    margin-bottom: 1rem;
    font-family: "Inter", serif;
    font-weight: 600;
    transition: all 0.3s ease;
}

button:hover {
    background-color: var(--medium-green);
    color: var(--white);
}

button:disabled {
    background-color: #cccccc;
    color: #666666;
    cursor: not-allowed;
}

#brailleTextInput {
    width: 100%;
    font-family: "Inter", sans-serif;
    font-weight: 400;
    color: var(--dark-green);
    padding: 0.8rem 1rem;
    border-radius: 15px;
    box-shadow: rgba(0, 0, 0, 0.1) 0px 4px 12px;
    transition: 0.4s ease-in-out;
    background-color: white;
}

#brailleOutputCanvas {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-top: 1rem;
    min-height: 60px;
    font-family: "Inter", sans-serif;
    padding: 0.8rem 1rem;
    border-radius: 15px;
    box-shadow: rgba(0, 0, 0, 0.1) 0px 4px 12px;
    transition: 0.4s ease-in-out;
    background-color: white;
    align-items: center;
}

.braille-cell {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 0.2rem;
    margin: 4px;
    padding: 4px;
    border-radius: 4px;
}

.dot-row {
    display: flex;
    flex-direction: row;
    justify-content: center;
    margin: 1px 0;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin: 0 3px;
}

.dot.active {
    background-color: var(--dark-green);
}

.dot.inactive {
    background-color: transparent;
}

#downloadImageBtn {
    display: inline-block;
    margin-top: 1rem;
    text-align: center;
    background: var(--dark-green);
    color: var(--light-green);
    padding: 1rem 1rem;
    border-radius: 0.8rem;
    font-family: "Inter", serif;
    font-weight: 600;
    cursor: pointer;
}

.image-options {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.complaint-link {
    display: block;
    margin-top: 2rem;
    text-align: center;
    color: var(--dark-green);
    font-weight: bold;
    text-decoration: underline;
    font-family: "Inter", sans-serif;
}

.email-note {
    text-align: center;
    font-size: 0.9rem;
    color: var(--dark-green);
    margin-top: 0.5rem;
}

.text-to-image,
.image-to-text {
    display: none;
    font-family: "Inter", sans-serif;
}

.active-mode {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Upload Container Styles */
.upload-container {
    width: 100%;
    border-radius: 15px;
    box-shadow: rgba(0, 0, 0, 0.1) 0px 4px 12px;
    background-color: var(--white);
    overflow: hidden;
    border: 1px solid rgba(83, 165, 72, 0.2);
    position: relative;
}

.upload-header {
    background: var(--dark-green);
    color: white;
    padding: 20px;
    text-align: center;
}

.upload-header h3 {
    margin: 0 0 8px 0;
    font-size: 1.2rem;
    font-weight: 600;
}

.upload-header p {
    margin: 0;
    font-size: 0.9rem;
    opacity: 0.9;
}

.upload-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    margin: 20px;
    border: 2px dashed var(--light-green);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    background: rgba(145, 203, 62, 0.05);
}

.upload-area:hover {
    border-color: var(--medium-green);
    background: rgba(145, 203, 62, 0.1);
}

.upload-area.drag-over {
    border-color: var(--medium-green);
    background: rgba(145, 203, 62, 0.15);
    transform: scale(1.02);
}

.upload-icon {
    color: var(--medium-green);
    margin-bottom: 16px;
}

.upload-text {
    font-size: 1rem;
    color: var(--dark-green);
    font-weight: 500;
    margin: 0 0 8px 0;
}

.upload-hint {
    font-size: 0.85rem;
    color: #666;
    margin: 0;
}

.preview-container {
    position: relative;
    margin: 0 20px 20px;
    border-radius: 12px;
    overflow: hidden;
    background: #f5f5f5;
}

.preview-container img {
    width: 100%;
    max-height: 300px;
    object-fit: contain;
    display: block;
}

.remove-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--dark-green);
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    margin: 0;
    transition: background 0.3s ease;
}

.remove-btn:hover {
    background: #c0392b;
}

.decode-btn {
    display: block;
    width: calc(100% - 40px);
    margin: 0 20px 20px;
    padding: 14px 20px;
    font-size: 1rem;
}

.decode-btn:disabled {
    background: #ccc;
    cursor: not-allowed;
}

.result-container {
    margin: 0 20px 20px;
    padding: 20px;
    background: rgba(145, 203, 62, 0.08);
    border-radius: 12px;
    border: 1px solid rgba(145, 203, 62, 0.2);
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.result-header h4 {
    margin: 0;
    color: var(--dark-green);
    font-size: 1rem;
}

.result-stats {
    font-size: 0.8rem;
    color: #666;
}

.result-output {
    background: white;
    padding: 16px;
    border-radius: 8px;
    font-family: 'Courier New', monospace;
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--dark-green);
    min-height: 60px;
    white-space: pre-wrap;
    word-break: break-word;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.copy-btn {
    margin-top: 12px;
    padding: 10px 20px;
    font-size: 0.9rem;
    background: var(--medium-green);
    color: white;
}

.copy-btn:hover {
    background: var(--dark-green);
}

.error-container {
    margin: 0 20px 20px;
    padding: 16px 20px;
    background: rgba(192, 57, 43, 0.1);
    border-radius: 8px;
    border: 1px solid rgba(192, 57, 43, 0.3);
}

.error-container p {
    margin: 0;
    color: #c0392b;
    font-size: 0.9rem;
}

.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.95);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.loader {
    width: 48px;
    height: 48px;
    border: 4px solid rgba(83, 165, 72, 0.2);
    border-radius: 50%;
    border-top-color: var(--medium-green);
    animation: spin 1s linear infinite;
    margin-bottom: 16px;
}

.loading-overlay p {
    color: var(--dark-green);
    font-weight: 500;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes progress {
    0% {
        width: 0%;
        transform: translateX(-100%);
    }

    50% {
        width: 70%;
        transform: translateX(0%);
    }

    100% {
        width: 100%;
        transform: translateX(100%);
    }
}

/* Loading dots animation */
.loading-dots::after {
    content: '';
    animation: dots 1.5s steps(5, end) infinite;
}

@keyframes dots {

    0%,
    20% {
        color: rgba(255, 255, 255, 0);
        text-shadow:
            .25em 0 0 rgba(255, 255, 255, 0),
            .5em 0 0 rgba(255, 255, 255, 0);
    }

    40% {
        color: white;
        text-shadow:
            .25em 0 0 rgba(255, 255, 255, 0),
            .5em 0 0 rgba(255, 255, 255, 0);
    }

    60% {
        text-shadow:
            .25em 0 0 white,
            .5em 0 0 rgba(255, 255, 255, 0);
    }

    80%,
    100% {
        text-shadow:
            .25em 0 0 white,
            .5em 0 0 white;
    }
}

@media (max-width: 768px) {
    .upload-area {
        padding: 30px 15px;
    }

    .upload-header h3 {
        font-size: 1.1rem;
    }

    .upload-header p {
        font-size: 0.8rem;
    }

    .result-output {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .upload-container {
        border-radius: 10px;
    }

    .upload-header {
        padding: 15px;
    }

    .upload-area {
        margin: 15px;
        padding: 25px 15px;
    }

    .preview-container {
        margin: 0 15px 15px;
    }

    .decode-btn {
        width: calc(100% - 30px);
        margin: 0 15px 15px;
    }

    .result-container {
        margin: 0 15px 15px;
        padding: 15px;
    }

    .error-container {
        margin: 0 15px 15px;
    }
}

/* checkbox css */
.checkbox-wrapper input[type="checkbox"] {
    visibility: hidden;
    display: none;
}

.checkbox-wrapper *,
.checkbox-wrapper ::after,
.checkbox-wrapper ::before {
    box-sizing: border-box;
    user-select: none;
}

.checkbox-wrapper {
    position: relative;
    display: block;
    overflow: hidden;
}

.checkbox-wrapper .label {
    cursor: pointer;
    display: flex;
    align-items: center;
}

.checkbox-wrapper .label span {
    margin-left: 10px;
    color: var(--dark-green);
    font-weight: 500;
}

.checkbox-wrapper .check {
    width: 50px;
    height: 50px;
    position: absolute;
    opacity: 0;
}

.checkbox-wrapper .label svg {
    vertical-align: middle;
}

.checkbox-wrapper .path1 {
    stroke-dasharray: 400;
    stroke-dashoffset: 400;
    transition: .5s stroke-dashoffset;
    opacity: 0;
}

.checkbox-wrapper .check:checked+label svg g path {
    stroke-dashoffset: 0;
    opacity: 1;
}

/* Processing indicator */
.processing-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 1rem 0;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(83, 165, 72, 0.2);
    border-radius: 50%;
    border-top-color: var(--medium-green);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.dragging {
    border: 2px dashed var(--medium-green) !important;
    background-color: rgba(83, 165, 72, 0.1);
}

/* Responsive adjustments */
@media (max-width: 600px) {
    .mode-selector {
        flex-direction: column;
        align-items: center;
    }

    .mode-btn {
        width: 80%;
    }

    .braille-cell {
        margin: 3px;
    }

    .dot {
        width: 8px;
        height: 8px;
        margin: 0 2px;
    }
}