/* --- Font Definition --- */
@font-face {
    font-family: 'Arimo';
    src: url('fonts/arimo/Arimo-Regular.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
}

@font-face {
    font-family: 'Arimo';
    src: url('fonts/arimo/Arimo-Bold.ttf') format('truetype');
    font-weight: bold;
    font-style: normal;
}

/* --- CSS Variables (Color Palette) --- */
:root {
    /* --- New Simplified Palette --- */
    --primary-color: #4A90E2; /* A calm, accessible blue */
    --primary-hover: #357ABD;
    --danger-color: #E94E77; /* A soft, non-jarring red */
    --danger-hover: #D9426A;
    --neutral-bg: #f5f7fa; /* A very light grey for backgrounds */
    --neutral-fg: #ffffff; /* White for foreground elements like cards */
    --neutral-border: #dfe3e8;
    --neutral-text: #333333;
    --neutral-text-muted: #6c757d;
    --toast-bg: #333; /* Dark neutral background for toasts */
}

/* --- General Body & Layout --- */
html, body {
    height: 100%;
}

body {
    font-family: 'Arimo', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    background-color: var(--neutral-bg);
    color: var(--neutral-text);
    display: flex;
    flex-direction: column;
}

main {
    flex: 1 0 auto;
    padding: 2rem;
    width: 100%;
    max-width: 1600px;
    margin: 0 auto;
    box-sizing: border-box;
}

/* --- Header --- */
header {
    background-color: var(--neutral-fg);
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--neutral-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    flex-shrink: 0;
}

.logo {
    font-size: 1.75rem;
    font-weight: bold;
    color: var(--primary-color);
}

.logo-link {
    text-decoration: none;
    cursor: pointer;
}

#header-controls {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

#header-controls .button-group {
    margin: 0;
    color: var(--neutral-text-muted);
    font-size: 0.9rem;
}

#header-controls .button-group p {
    margin: 0;
}

/* --- Initial Upload View (Hero Section) --- */
#upload-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 5rem;
}

.hero h1 {
    font-size: 3rem;
    font-weight: bold;
    color: var(--neutral-text);
    margin-bottom: 1rem;
}

.hero .subtitle {
    font-size: 1.25rem;
    color: var(--neutral-text-muted);
    margin-bottom: 2.5rem;
}

#initial-upload-button {
    padding: 1rem 2.5rem;
    font-size: 1.2rem;
    font-weight: bold;
}

.showcase-video {
    margin-top: 5rem;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--neutral-border);
}

/* --- Main Editor Layout --- */
#editor-container {
    display: flex;
    gap: 2rem;
    width: 100%;
    justify-content: center;
}

#controls-column {
    flex: 1;
    max-width: 500px;
    background-color: var(--neutral-fg);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--neutral-border);
    height: fit-content;
}

#preview-column {
    flex: 1;
    max-width: 800px;
    display: flex;
    flex-direction: column;
}

/* --- Controls Column Sections --- */
.controls-section {
    margin-bottom: 2rem;
}

.controls-section:last-child {
    margin-bottom: 0;
}

.controls-section h2 {
    margin-top: 0;
    border-bottom: 1px solid var(--neutral-border);
    padding-bottom: 0.75rem;
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.control-group {
    margin-bottom: 1rem;
}

.control-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
    font-size: 0.9rem;
}

.control-group select, .control-group input {
    width: 100%;
    box-sizing: border-box;
}

.help-text {
    font-size: 0.9rem;
    color: var(--neutral-text-muted);
    margin-top: -0.5rem;
    margin-bottom: 1rem;
}

/* --- A4 Preview --- */
.a4-preview {
    width: 100%;
    aspect-ratio: 210 / 297;
    background-color: var(--neutral-fg);
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--neutral-border);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

#preview-page-note {
    text-align: center;
    margin-bottom: 1rem;
    color: var(--neutral-text-muted);
    font-size: 0.9rem;
}

/* --- Example Label & Customization --- */
#example-label {
    border: 2px dashed var(--neutral-border);
    padding: 10px;
    min-height: 150px;
    background-color: var(--neutral-bg);
    margin-bottom: 1rem;
    border-radius: 6px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

#example-label > div {
    cursor: grab;
}

#example-label .barcode {
    display: block;
    margin: 0 auto;
}

.truncate {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.validation-message {
    color: var(--danger-color);
    font-weight: bold;
    margin-top: 1rem;
}

/* --- Profile Controls --- */
.profile-controls {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.profile-controls select {
    flex-grow: 1;
}

.profile-controls button {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    flex-shrink: 0;
}

/* --- Buttons --- */
button {
    background-color: var(--primary-color);
    color: var(--neutral-fg);
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: bold;
    transition: background-color 0.2s, opacity 0.2s, box-shadow 0.2s;
}


button:hover {
    background-color: var(--primary-hover);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

#new-upload-button {
    background-color: var(--neutral-bg);
    color: var(--neutral-text);
    border: 1px solid var(--neutral-border);
}

#new-upload-button:hover {
    background-color: #e9ecef;
}

.button-group {
    display: flex;
    gap: 1rem;
    align-items: center;
}

#save-current-profile-button.saved {
    background-color: #28a745; /* Using a direct green for now */
}

#delete-profile-button {
    background-color: var(--danger-color);
}

#delete-profile-button:hover {
    background-color: var(--danger-hover);
}

button:disabled {
    background-color: #e9ecef !important;
    color: #adb5bd;
    cursor: not-allowed;
    box-shadow: none;
}

button.loading {
    position: relative;
    color: transparent !important;
}

button.loading::after {
    content: "Generating";
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    animation: loading-dots 2.8s infinite;
    color: var(--neutral-text);
    white-space: nowrap;
}

@keyframes loading-dots {
    0%, 100% {
        content: "Generating";
    }
    25% {
        content: "Generating.";
    }
    50% {
        content: "Generating..";
    }
    75% {
        content: "Generating...";
    }
}

/* --- Form Elements --- */
select, input[type="number"], input[type="text"] {
    padding: 0.75rem;
    border-radius: 5px;
    border: 1px solid var(--neutral-border);
    background-color: var(--neutral-fg);
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

select:focus, input[type="number"]:focus, input[type="text"]:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.25);
}

#column-select {
    min-height: 120px;
}

/* --- Modal --- */
.modal {
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(33, 37, 41, 0.6);
    display: none;
    align-items: center;
    justify-content: center;
}

.modal.is-open {
    display: flex;
}

.modal-content {
    background-color: var(--neutral-fg);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    width: 90%;
    max-width: 450px;
    position: relative;
}

.modal-content h3 {
    margin-top: 0;
    color: var(--neutral-text);
    border-bottom: 1px solid var(--neutral-border);
    padding-bottom: 1rem;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.modal-content .control-group label {
    font-weight: bold;
}

.modal-content .control-group.checkbox-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.modal-content .control-group.checkbox-group input {
    width: auto;
}

.close-button {
    position: absolute;
    top: 1rem;
    right: 1rem;
    color: #adb5bd;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
}

.close-button:hover,
.close-button:focus {
    color: var(--danger-color);
}

/* --- Prompt Modal Specifics --- */
.prompt-buttons {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

#prompt-cancel-button {
    background-color: var(--neutral-bg);
    color: var(--neutral-text);
    border: 1px solid var(--neutral-border);
}

#prompt-cancel-button:hover {
    background-color: #e9ecef;
}

#prompt-ok-button.danger {
    background-color: var(--danger-color);
}

#prompt-ok-button.danger:hover {
    background-color: var(--danger-hover);
}

#prompt-ok-button.danger {
    background-color: var(--danger-color);
}

#prompt-ok-button.danger:hover {
    background-color: var(--danger-hover);
}

#prompt-ok-button.danger {
    background-color: var(--danger-color);
}

#prompt-ok-button.danger:hover {
    background-color: var(--danger-hover);
}

#prompt-ok-button.danger {
    background-color: var(--danger-color);
}

#prompt-ok-button.danger:hover {
    background-color: var(--danger-hover);
}

#prompt-ok-button.danger {
    background-color: var(--danger-color);
}

#prompt-ok-button.danger:hover {
    background-color: var(--danger-hover);
}

#prompt-ok-button.danger {
    background-color: var(--danger-color);
}

#prompt-ok-button.danger:hover {
    background-color: var(--danger-hover);
}

#prompt-ok-button.danger {
    background-color: var(--danger-color);
}

#prompt-ok-button.danger:hover {
    background-color: var(--danger-hover);
}

/* --- Toast Notifications --- */
#toast-container {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: center;
}

.toast {
    padding: 1rem 1.5rem;
    border-radius: 6px;
    color: var(--neutral-fg);
    background-color: var(--toast-bg);
    font-weight: bold;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.25);
    opacity: 0;
    transform: translateY(100px);
    animation: slideUp 0.5s forwards, fadeOut 0.5s 4.5s forwards;
}

.toast.error {
    background-color: var(--danger-color);
}

.toast.info {
    background-color: var(--primary-color);
}


@keyframes slideUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeOut {
    to {
        opacity: 0;
        transform: translateY(100px);
    }
}


/* --- Spinner --- */
#pdf-canvas {
    width: 100%;
    height: 100%;
}

.spinner-container {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
    position: absolute;
}

.spinner {
    border: 8px solid var(--neutral-border);
    border-top: 8px solid var(--primary-color);
    border-radius: 50%;
    width: 60px;
    height: 60px;
    animation: spin 1s linear infinite;
}

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

/* --- Footer --- */
footer {
    background-color: var(--neutral-fg);
    color: var(--neutral-text-muted);
    text-align: center;
    padding: 1.5rem;
    border-top: 1px solid var(--neutral-border);
    flex-shrink: 0;
    font-size: 0.9rem;
}

/* --- Responsive --- */
@media (max-width: 992px) {
    #editor-container {
        flex-direction: column-reverse;
    }

    #header-controls {
        flex-direction: column;
        align-items: flex-end;
        gap: 0.5rem;
    }
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .hero .subtitle {
        font-size: 1.1rem;
    }

    main {
        padding: 1rem;
    }

    header {
        padding: 1rem;
    }
}

@media (max-width: 576px) {
    header {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }

    #header-controls {
        align-items: center;
    }
}