body {
    background: var(--gradient-surface);
}

input,
textarea,
select,
button {
    font-family: var(--font-family-base);
}

.header-content {
    justify-content: space-between !important;
}

.keyboard-shortcut-hint {
    font-size: var(--font-size-xs);
    display: flex;
    align-items: center;
    gap: 6px;
    opacity: 0.7;
    transition: opacity var(--transition-base);
}

.keyboard-shortcut-hint:hover {
    opacity: 1;
}

.keyboard-shortcut-hint kbd {
    background: var(--color-border);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: monospace;
    font-size: 11px;
    color: var(--color-text-primary);
    font-weight: normal;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.config-panel {
    background: var(--color-surface);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    transition: all var(--transition-base);
    overflow: hidden;
}

.config-panel.collapsed {
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
}

.config-panel.collapsed .config-content {
    display: none;
}

.config-header {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: var(--spacing-md);
    position: relative;
}

.config-panel.collapsed .config-header {
    margin-bottom: 0;
    justify-content: space-between;
}

.toggle-config-btn {
    background: transparent;
    color: var(--primary-600);
    border: 2px solid var(--primary-300);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-base);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    white-space: nowrap;
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
}

.toggle-config-btn:hover {
    background: var(--primary-50);
    border-color: var(--primary-500);
    color: var(--primary-700);
}

.page-title {
    color: var(--color-primary);
    font-size: var(--font-size-2xl);
    margin: 0;
    font-weight: var(--font-weight-bold);
    text-align: center;
}

.config-panel.collapsed .page-title {
    font-size: var(--font-size-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    margin: 0;
}

.section-title {
    color: var(--color-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    margin: var(--spacing-lg) 0 var(--spacing-sm);
    padding-bottom: var(--spacing-xs);
    border-bottom: 2px solid var(--primary-200);
}

label {
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.input-help-text {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.input-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.btn-example {
    background: var(--primary-100);
    color: var(--primary-700);
    border: 2px solid var(--primary-300);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    transition: all var(--transition-base);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    white-space: nowrap;
}

.btn-example:hover {
    background: var(--primary-200);
    border-color: var(--primary-400);
}

/* ============================================
   GRID DE PARES - LAYOUT COMPACTO
   ============================================ */

.pairs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.pair-item {
    background: transparent;
    transition: all var(--transition-base);
    position: relative;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.pair-item:hover {
    transform: translateY(-2px);
}

.pair-number {
    position: absolute;
    top: var(--spacing-sm);
    left: var(--spacing-sm);
    background: var(--primary-600);
    color: white;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-xs);
    z-index: 2;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.btn-remove-pair {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: transparent;
    border: unset;
    color: #ef4444;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 14px;
    font-weight: var(--font-weight-bold);
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    padding: 0;
}

.btn-remove-pair:hover {
    background: #fef2f2;
    transform: scale(1.1);
    box-shadow: 0 2px 4px rgba(239, 68, 68, 0.2);
}

.image-upload-zone {
    border: 2px dashed var(--primary-300);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-base);
    background: var(--primary-50);
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
}

.image-upload-zone:hover {
    border-color: var(--primary-500);
    background: var(--primary-100);
}

.image-upload-zone.has-image {
    padding: 0;
    border-style: solid;
    border-width: 2px;
    border-color: var(--primary-200);
    background: white;
    box-shadow: var(--shadow-sm);
}

.image-upload-zone.has-image:hover {
    border-color: var(--primary-300);
    box-shadow: var(--shadow-md);
}

.upload-icon {
    font-size: 32px;
    margin-bottom: var(--spacing-xs);
}

.upload-text {
    color: var(--color-text-secondary);
    margin-bottom: 4px;
}

.upload-text strong {
    color: var(--primary-600);
}

.upload-subtext {
    color: var(--color-text-secondary);
    opacity: 0.7;
}

.image-preview {
    width: 100%;
    height: 250px;
    object-fit: contain;
    border-radius: var(--border-radius-md);
    background: white;
}

.image-actions {
    position: absolute;
    bottom: var(--spacing-sm);
    right: var(--spacing-sm);
    display: flex;
    gap: var(--spacing-sm);
}

.btn-change-image {
    background: transparent;
    color: var(--primary-600);
    border: unset;
    padding: var(--spacing-xs);
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition-base);
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
}

.btn-change-image:hover {
    background: var(--primary-50);
    transform: scale(1.05);
    box-shadow: 0 2px 4px rgba(22, 163, 74, 0.2);
}

.image-url-input {
    width: 100%;
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-xs);
    font-family: var(--font-family-base);
    margin-top: var(--spacing-xs);
    outline: var(--color-primary);
}

.image-url-input:focus {
    border-color: var(--primary-500);
    outline: none;
}

.image-url-input::placeholder {
    text-transform: none;
    opacity: 0.5;
    font-size: var(--font-size-xs);
}

.or-divider {
    color: var(--color-text-secondary);
    font-size: var(--font-size-xs);
    margin: var(--spacing-sm) 0;
    opacity: 0.5;
}

.word-input-area {
    display: flex;
    flex-direction: column;
}

.word-input-area input[type="text"] {
    color: var(--color-text-secondary);
    width: 100%;
    padding: var(--spacing-sm);
    font-size: var(--font-size-sm);
    font-family: var(--font-family-base);
    border: 2px solid var(--primary-200);
    border-radius: var(--border-radius-md);
    text-align: center;
    text-transform: uppercase;
}

.word-input-area input[type="text"]:focus {
    border-color: var(--primary-500);
    outline: none;
}

.word-input-area input[type="text"]::placeholder {
    text-transform: none;
    opacity: 0.5;
    font-size: var(--font-size-xs);
}

.btn-add-pair {
    background: white;
    border: 2px dashed var(--primary-300);
    color: var(--primary-600);
    min-height: 250px;
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
}

.btn-add-pair .add-icon {
    font-size: 48px;
    font-weight: var(--font-weight-light);
    line-height: 1;
}

.btn-add-pair .add-text {
    font-size: 14px;
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-add-pair:hover {
    background: var(--primary-50);
    border-color: var(--primary-500);
    border-style: solid;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(22, 163, 74, 0.15);
}

.button-group {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.btn-generate {
    flex: 1;
    background: var(--gradient-primary);
    color: white;
    border: none;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: var(--font-family-base);
}

.btn-generate:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    filter: brightness(1.1);
}

.btn-print {
    position: fixed;
    bottom: var(--spacing-2xl);
    right: var(--spacing-2xl);
    background: var(--primary-600);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius-full);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: var(--font-family-base);
    display: none;
    align-items: center;
    gap: var(--spacing-xs);
    box-shadow: var(--shadow-xl);
    z-index: 1000;
}

.btn-print:hover {
    background: var(--primary-700);
    transform: translateY(-4px);
    box-shadow: var(--shadow-2xl);
}

.alert {
    background: #fef3c7;
    border: var(--border-width-medium) solid #fbbf24;
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    margin-top: var(--spacing-md);
    display: none;
}

.alert-text {
    color: #92400e;
    font-size: var(--font-size-sm);
    margin: 0;
}

/* ============================================
   CONTAINER DO JOGO
   ============================================ */

.game-container {
    display: none;
    background: var(--color-surface);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.game-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.game-title {
    color: var(--color-primary);
    font-size: var(--font-size-xl);
    margin: 0;
    font-weight: var(--font-weight-bold);
}

.game-controls {
    display: flex;
    gap: var(--spacing-sm);
}

.btn-clear {
    background: white;
    border: 2px solid var(--primary-300);
    color: var(--primary-700);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-md);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    transition: all var(--transition-base);
    font-family: var(--font-family-base);
}

.btn-clear:hover {
    background: #fef2f2;
    border-color: #ef4444;
    color: #ef4444;
}

.game-board {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    height: auto;
}

.connections-svg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.connection-line {
    fill: none;
    stroke-width: 3;
    opacity: 0.8;
    transition: all var(--transition-base);
}

.connection-line.preview-line {
    stroke-width: 2;
    opacity: 0.4;
    stroke-dasharray: 5, 5;
    animation: dash 0.5s linear infinite;
}

@keyframes dash {
    to {
        stroke-dashoffset: -10;
    }
}

.connection-line.correct {
    stroke: var(--primary-600);
    opacity: 1;
}

.connection-line.incorrect {
    stroke: #ef4444;
    opacity: 1;
    animation: shake 0.5s;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.items-column {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.column-title {
    color: var(--primary-600);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-xs);
    text-align: center;
    padding-bottom: var(--spacing-xs);
    border-bottom: 2px solid var(--primary-200);
    flex-shrink: 0;
}

.items-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    flex: 1;
    overflow-y: auto;
    padding-right: var(--spacing-xs);
    justify-content: space-evenly;
    align-items: center;
}

.items-list::-webkit-scrollbar {
    width: 6px;
}

.items-list::-webkit-scrollbar-track {
    background: var(--neutral-100);
    border-radius: 3px;
}

.items-list::-webkit-scrollbar-thumb {
    background: var(--primary-300);
    border-radius: 3px;
}

.items-list::-webkit-scrollbar-thumb:hover {
    background: var(--primary-400);
}

.image-item {
    background: white;
    border: 2px solid var(--primary-200);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-xs);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    max-width: 280px;
}

.image-item:hover {
    border-color: var(--primary-400);
    transform: translateX(-4px);
    box-shadow: var(--shadow-md);
}

.image-item.selected {
    border-color: var(--primary-600);
    background: var(--primary-50);
    box-shadow: var(--shadow-lg);
}

.image-item.connected {
    opacity: 1;
}

.image-item.correct {
    border-color: var(--primary-600);
    background: var(--primary-50);
}

.image-item.incorrect {
    border-color: #ef4444;
    background: #fef2f2;
}

.image-item img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: var(--border-radius-sm);
    background: transparent;
}

.word-item {
    background: white;
    border: 2px solid var(--primary-200);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-xs) var(--spacing-sm);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 280px;
}

.word-item:hover {
    border-color: var(--primary-400);
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
}

.word-item.selected {
    border-color: var(--primary-600);
    background: var(--primary-50);
    box-shadow: var(--shadow-lg);
}

.word-item.connected {
    opacity: 1;
}

.word-item.correct {
    border-color: var(--primary-600);
    background: var(--primary-50);
}

.word-item.incorrect {
    border-color: #ef4444;
    background: #fef2f2;
}

.word-text {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    text-align: center;
}

.connection-point {
    position: absolute;
    width: 10px;
    height: 10px;
    background: var(--primary-600);
    border-radius: 50%;
    opacity: 0;
    transition: opacity var(--transition-base);
    pointer-events: none;
}

.image-item .connection-point {
    right: -5px;
    top: 50%;
    transform: translateY(-50%);
}

.word-item .connection-point {
    left: -5px;
    top: 50%;
    transform: translateY(-50%);
}

.image-item.selected .connection-point,
.word-item.selected .connection-point {
    opacity: 1;
}

.feedback-message-inline {
    display: none;
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-lg);
    text-align: center;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        transform: translateY(-20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.feedback-message-inline.success {
    background: linear-gradient(135deg, var(--primary-50) 0%, var(--primary-100) 100%);
    border: 2px solid var(--primary-500);
    color: var(--primary-900);
}

.feedback-message-inline.error {
    background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
    border: 2px solid #ef4444;
    color: #991b1b;
}

.feedback-message-inline.partial {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border: 2px solid #f59e0b;
    color: #92400e;
}

/* Modal de Feedback */
.feedback-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    backdrop-filter: blur(2px);
    z-index: 10000;
    justify-content: center;
    align-items: center;
    animation: fadeIn 0.3s ease-out;
}

.feedback-modal.show {
    display: flex;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes modalSlideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.feedback-message {
    background: white;
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-xl);
    text-align: center;
    box-shadow: var(--shadow-2xl);
    border: 3px solid;
    max-width: 500px;
    width: 90%;
    animation: modalSlideUp 0.4s ease-out;
    position: relative;
}

.feedback-message.success {
    border-color: var(--primary-500);
    background: linear-gradient(135deg, #ffffff 0%, var(--primary-50) 100%);
}

.feedback-message.error {
    border-color: #f59e0b;
    background: linear-gradient(135deg, #ffffff 0%, #fef3c7 100%);
}

.feedback-message h3 {
    margin: 0 0 var(--spacing-md) 0;
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    animation: bounce 0.6s ease-out;
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.feedback-message.success h3 {
    color: var(--primary-600);
}

.feedback-message.error h3 {
    color: #92400e;
}

.feedback-message p {
    margin: 0 0 var(--spacing-xl) 0;
    color: var(--color-text-primary);
    font-size: var(--font-size-lg);
    line-height: 1.6;
}

.btn-new-game {
    background: var(--gradient-primary);
    color: white;
    border: none;
    padding: var(--spacing-md) var(--spacing-2xl);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: var(--font-family-base);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    box-shadow: var(--shadow-md);
}

.btn-new-game:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
    filter: brightness(1.1);
}

.btn-close-modal {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: transparent;
    border: none;
    font-size: var(--font-size-2xl);
    color: var(--color-text-secondary);
    cursor: pointer;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all var(--transition-base);
}

.btn-close-modal:hover {
    background: var(--color-border);
    color: var(--color-text-primary);
}

.confetti {
    position: fixed;
    width: 15px;
    height: 15px;
    background: var(--primary-500);
    z-index: 9999;
    animation: confetti-fall 5s linear forwards;
}

@keyframes confetti-fall {
    to {
        transform: translateY(100vh) rotate(720deg);
        opacity: 0;
    }
}

@media print {
    body {
        margin: 0;
        padding: 0;
        background: white;
    }

    .header, 
    .footer, 
    .config-panel, 
    .btn-print, 
    .game-controls, 
    .feedback-modal, 
    .confetti,
    .game-header,
    .game-title,
    .column-title,
    .connections-svg,
    .connection-point {
        display: none !important;
    }

    .game-container {
        display: block !important;
        box-shadow: none;
        padding: 5mm;
        background: white;
    }

    .game-board {
        page-break-inside: avoid;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 5mm;
        height: auto;
        max-height: none;
    }

    .items-column {
        background: white;
    }

    .items-list {
        gap: 2mm;
        overflow: visible;
    }

    .image-item,
    .word-item {
        page-break-inside: avoid;
        border: 2px solid #000 !important;
        background: white;
    }

    .image-item {
        height: auto;
        min-height: 35mm;
        max-width: 80mm;
        padding: 2mm;
    }

    .word-item {
        height: auto;
        min-height: 15mm;
        padding: 2mm 3mm;
    }

    .word-text {
        color: #000 !important;
        font-size: 13pt;
    }
}

@media (max-width: 1200px) {
    .game-board {
        gap: var(--spacing-xl);
    }
}

@media (max-width: 768px) {
    .config-panel {
        padding: var(--spacing-md);
    }

    .page-title {
        font-size: var(--font-size-xl);
    }

    .game-controls {
        justify-content: center;
    }

    .pairs-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }

    .word-text {
        font-size: var(--font-size-sm);
    }
}