:root {
    --bg-color: #f5f5f5; 
    --surface-color: #ffffff; 
    --text-main: #000000; 
    --text-muted: #666666; 
    --border-color: #dddddd; 
    --accent-color: #000000; 
    --accent-hover: #333333;
    --danger-color: #cc0000;
    --success-color: #27c93f;
    --radius: 4px;
    --transition: all 0.2s ease;
}

body.dark-mode {
    --bg-color: #000000; 
    --surface-color: #121212; 
    --text-main: #ffffff; 
    --text-muted: #999999; 
    --border-color: #333333; 
    --accent-color: #ffffff; 
    --accent-hover: #cccccc;
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Inter', sans-serif; }

body { 
    background-color: var(--bg-color); 
    color: var(--text-main); 
    min-height: 100vh; 
    display: flex; 
    flex-direction: column; 
    perspective: 1500px; 
    overflow-x: hidden; 
}

body.focus-active { overflow: hidden; }

h1, h2, h3 { font-weight: 500; letter-spacing: -0.02em; }
h2 { font-size: 1.25rem; margin-bottom: 0; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; }

header { 
    display: grid; 
    grid-template-columns: 1fr auto 1fr; 
    align-items: center; 
    padding: 1rem 2rem; 
    background-color: var(--surface-color); 
    border-bottom: 1px solid var(--border-color); 
    max-height: 100px; overflow: hidden;
    transform-origin: top center; 
    transform: rotateX(0deg);
    opacity: 1;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s ease, max-height 0.4s ease 0.2s, padding 0.4s ease 0.2s;
}

body.focus-active header { 
    transform: rotateX(90deg); 
    opacity: 0; 
    max-height: 0; padding-top: 0; padding-bottom: 0; border-bottom-color: transparent;
}

.header-left { display: flex; align-items: center; gap: 1.5rem; justify-content: flex-start; }
.header-center { display: flex; gap: 0.5rem; justify-content: center; }
.header-right { display: flex; justify-content: flex-end; }

.mac-window-controls { display: flex; gap: 8px; }
.mac-dot { width: 12px; height: 12px; border-radius: 50%; display: inline-block; cursor: default; }
.mac-red { background-color: #ff5f56; }
.mac-yellow { background-color: #ffbd2e; }
.mac-green { background-color: #27c93f; cursor: pointer; transition: filter 0.2s; }
.mac-green:hover { filter: brightness(1.2); }

.logo { font-size: 1.2rem; font-weight: 600; letter-spacing: -0.02em; color: var(--text-main); }
.nav-btn { background: none; border: none; color: var(--text-muted); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em; font-weight: 500; cursor: pointer; padding: 0.5rem 1rem; border-radius: var(--radius); transition: var(--transition); }
.nav-btn:hover { color: var(--text-main); background-color: var(--bg-color); }
.nav-btn.active { color: var(--text-main); background-color: var(--border-color); }
#theme-toggle { background: transparent; border: 1px solid var(--border-color); color: var(--text-main); padding: 0.4rem 1rem; border-radius: var(--radius); font-size: 0.75rem; text-transform: uppercase; font-weight: 500; cursor: pointer; transition: var(--transition); }
#theme-toggle:hover { background: var(--border-color); }

main { flex: 1; padding: 2rem 1rem; display: flex; justify-content: center; transition: padding 0.5s ease; }
body.focus-active main { padding: 0; } 

.container { width: 100%; max-width: 1200px; }
.container-small { max-width: 800px; width: 100%; }
.view { display: none; }
.view.active { display: block; animation: fadeIn 0.4s ease; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.dashboard-grid { display: grid; grid-template-columns: 2.5fr 1.2fr; gap: 2rem; }
.main-panel, .side-panel { display: flex; flex-direction: column; gap: 1.5rem; }

.progress-card, .chart-wrapper, .heatmap-card {
    background-color: var(--surface-color); border: 1px solid var(--border-color); border-radius: var(--radius); padding: 1.5rem;
}

.progress-header { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 0.8rem; }
.progress-header h3 { font-size: 0.9rem; text-transform: uppercase; color: var(--text-muted); letter-spacing: 0.05em; }
#daily-percentage { font-size: 1.5rem; font-weight: 600; color: var(--text-main); }
.progress-bar-bg { width: 100%; height: 12px; background-color: var(--bg-color); border-radius: 6px; overflow: hidden; border: 1px solid var(--border-color); }
.progress-bar-fill { height: 100%; background-color: var(--text-main); width: 0%; transition: width 1s ease; }

.panel-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.total-badge { text-align: right; }
.total-badge .label { display: block; font-size: 0.7rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.1em; }
#total-accumulated { font-size: 1.4rem; font-weight: 600; color: var(--accent-color); }
.chart-container { height: 350px; width: 100%; }

.icon-btn-small { background: transparent; border: none; color: var(--text-muted); cursor: pointer; transition: var(--transition); display: flex; align-items: center; justify-content: center; padding: 4px; border-radius: var(--radius); }
.icon-btn-small:hover { color: var(--text-main); background-color: var(--border-color); opacity: 1 !important; }

.heatmap-card h2 { font-size: 1rem; margin-bottom: 1.5rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; }
.heatmap-grid { display: grid; grid-template-columns: repeat(15, 1fr); gap: 6px; margin-bottom: 1rem; }
.heatmap-cell { aspect-ratio: 1; border-radius: 2px; background-color: var(--border-color); transition: transform 0.2s; position: relative; cursor: pointer; }
.heatmap-cell:hover { transform: scale(1.1); }
.heatmap-legend { display: flex; align-items: center; gap: 0.5rem; font-size: 0.8rem; color: var(--text-muted); justify-content: flex-end; }
.legend-cell { width: 12px; height: 12px; border-radius: 2px; }

.level-0 { background-color: var(--bg-color); border: 1px solid var(--border-color); }
.level-1 { background-color: rgba(0, 0, 0, 0.2); }
.level-2 { background-color: rgba(0, 0, 0, 0.5); }
.level-3 { background-color: rgba(0, 0, 0, 0.9); }
body.dark-mode .level-1 { background-color: rgba(255, 255, 255, 0.2); }
body.dark-mode .level-2 { background-color: rgba(255, 255, 255, 0.5); }
body.dark-mode .level-3 { background-color: rgba(255, 255, 255, 0.9); }

.stat-card { background-color: var(--surface-color); border: 1px solid var(--border-color); border-radius: var(--radius); padding: 1.5rem; display: flex; align-items: center; gap: 1rem; }
.stat-card.outline { background-color: transparent; border: 1px dashed var(--border-color); flex-direction: column; align-items: flex-start; gap: 0.5rem; }
.stat-info h3 { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); margin-bottom: 0.4rem; }
.stat-info p { font-size: 2rem; font-weight: 400; font-variant-numeric: tabular-nums; }
.stat-info .highlight { font-size: 2.5rem; font-weight: 500; color: var(--text-main); }
.stat-info .sub-text { font-size: 0.85rem; color: var(--text-muted); }

.timer-container { text-align: center; display: flex; flex-direction: column; align-items: center; justify-content: center; height: 70vh; transition: height 0.5s ease; transform-style: preserve-3d; }
body.focus-active .timer-container { height: 100vh; }

.cycle-info { margin-bottom: 1.5rem; transition: transform 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.1); }
body.focus-active .cycle-info { transform: scale(1.1) translateZ(50px); margin-bottom: 2.5rem; }
#cycle-subject { font-size: 2rem; color: var(--text-main); font-weight: 600; letter-spacing: -0.02em; margin-bottom: 0.5rem; text-transform: none; }
.badge { display: inline-block; padding: 0.3rem 1rem; border-radius: 20px; font-size: 0.8rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; border: 1px solid var(--text-main); color: var(--text-main); }
.badge.break { border-color: var(--text-muted); color: var(--text-muted); }

.stopwatch { transition: transform 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.1); }
body.focus-active .stopwatch { transform: scale(1.3) translateZ(50px); }

.stopwatch h1 { font-weight: 300; font-variant-numeric: tabular-nums; margin: 0 0 2rem 0; display: flex; align-items: baseline; justify-content: center; }
#time-main { font-size: 8rem; letter-spacing: -4px; color: var(--text-main); }
#time-ms { font-size: 4.5rem; color: var(--text-muted); letter-spacing: -2px; }

.controls { transition: transform 0.4s ease, opacity 0.4s ease; transform: translateY(0); opacity: 1; display: flex; gap: 1.5rem; }
body.focus-active .controls { transform: translateY(20px); opacity: 0; pointer-events: none; position: absolute; visibility: hidden; }

.icon-btn { width: 65px; height: 65px; border-radius: 50%; border: 1px solid var(--border-color); background: transparent; color: var(--text-main); display: flex; align-items: center; justify-content: center; cursor: pointer; transition: var(--transition); outline: none; }
.icon-btn:hover { background-color: rgba(150, 150, 150, 0.08); border-color: var(--text-muted); }
.icon-btn svg { transition: transform 0.2s; }
.icon-btn:active svg { transform: scale(0.85); }

.btn { padding: 0.8rem 2.5rem; border-radius: var(--radius); font-size: 0.9rem; text-transform: uppercase; font-weight: 600; cursor: pointer; border: 1px solid transparent; transition: var(--transition); }
.btn.primary { background-color: var(--text-main); color: var(--surface-color); }
.btn.secondary { background-color: transparent; border-color: var(--border-color); color: var(--text-main); }
.btn.danger { background-color: transparent; border-color: var(--border-color); color: var(--danger-color); }

.modal-overlay { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0, 0, 0, 0.8); display: flex; align-items: center; justify-content: center; z-index: 9999; opacity: 0; pointer-events: none; transition: opacity 0.3s ease; backdrop-filter: blur(4px); }
.modal-overlay.active { opacity: 1; pointer-events: auto; }
.modal-content { background: var(--surface-color); padding: 2.5rem; border-radius: var(--radius); border: 1px solid var(--border-color); width: 90%; text-align: center; transform: translateY(20px); transition: transform 0.3s ease; box-shadow: 0 10px 40px rgba(0,0,0,0.2); }
.modal-overlay.active .modal-content { transform: translateY(0); }
.modal-content h2 { margin-bottom: 0.5rem; color: var(--text-main); font-size: 1.5rem; text-transform: none; letter-spacing: normal; }
.modal-content p { color: var(--text-muted); margin-bottom: 2rem; font-size: 0.9rem; line-height: 1.4; }
.modal-options { display: flex; flex-direction: column; gap: 0.8rem; }

.subject-bank-panel { background-color: var(--surface-color); border: 1px solid var(--border-color); border-radius: var(--radius); padding: 1.5rem; margin-bottom: 2rem; }
.add-subject-wrapper { display: flex; gap: 0.5rem; margin-bottom: 1.5rem; }
.add-subject-wrapper input { flex: 1; padding: 0.8rem 1rem; border: 1px solid var(--border-color); border-radius: var(--radius); background: var(--bg-color); color: var(--text-main); font-family: 'Inter', sans-serif; font-size: 0.95rem; }
.add-subject-wrapper input:focus { border-color: var(--text-main); outline: none; }

.subject-bank { display: flex; flex-wrap: wrap; gap: 0.8rem; }
.subject-pill { background: var(--bg-color); border: 1px solid var(--border-color); padding: 0.5rem 1rem; border-radius: 20px; font-size: 0.85rem; font-weight: 500; display: flex; align-items: center; gap: 0.8rem; cursor: grab; user-select: none; transition: background 0.2s; }
.subject-pill:hover { background: rgba(150, 150, 150, 0.1); }
.subject-pill:active { cursor: grabbing; }
.subject-pill.dragging { opacity: 0.4; }
.delete-subject { cursor: pointer; color: var(--danger-color); font-weight: bold; font-size: 1rem; line-height: 1; padding: 0 4px; }

.table-responsive { width: 100%; overflow-x: auto; }
.schedule-table { width: 100%; border-collapse: collapse; background-color: var(--surface-color); border: 1px solid var(--border-color); border-radius: var(--radius); }
.schedule-table th, .schedule-table td { padding: 1.2rem 0.5rem; border: 1px solid var(--border-color); text-align: center; font-size: 0.9rem; transition: var(--transition); }
.schedule-table th { background-color: var(--bg-color); color: var(--text-muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; font-size: 0.8rem; border-bottom: 2px solid var(--border-color); }

.schedule-table td.drop-zone { outline: none; user-select: none; }
.schedule-table td.drop-zone:hover { background-color: rgba(150, 150, 150, 0.05); }
.schedule-table td.drag-over { background-color: rgba(150, 150, 150, 0.2); border: 2px dashed var(--text-main); box-shadow: inset 0 0 0 2px var(--text-main); }

.schedule-table tr { position: relative; }
.schedule-table td.time-cell { position: relative; outline: none; }
.schedule-table td.time-cell:focus .time-text { background-color: var(--bg-color); box-shadow: inset 0 0 0 2px var(--text-main); padding: 2px 4px; border-radius: 2px; }

.btn-remove-row {
    position: absolute;
    left: 4px;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    color: var(--text-muted); 
    border: none;
    cursor: pointer;
    opacity: 0;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4px;
    border-radius: 4px;
}
.schedule-table tr:hover .btn-remove-row { opacity: 0.5; }
.btn-remove-row:hover { opacity: 1 !important; color: var(--text-main); background-color: var(--border-color); }

.heatmap-cell[title]:hover::after {
    content: attr(title); position: absolute; bottom: 120%; left: 50%; transform: translateX(-50%);
    background: var(--text-main); color: var(--bg-color); padding: 4px 8px; border-radius: 4px;
    font-size: 0.7rem; white-space: nowrap; z-index: 10; pointer-events: none;
}

.sort-select { padding: 0.8rem 1rem; border: 1px solid var(--border-color); border-radius: var(--radius); background: var(--bg-color); color: var(--text-main); font-size: 0.9rem; outline: none; cursor: pointer; }
.sort-select:focus { border-color: var(--text-main); }

/* --- CARDS DE REVISÃO E ESTILOS COMPARTILHADOS --- */
.error-card { background: var(--surface-color); border: 1px solid var(--border-color); border-radius: var(--radius); padding: 1.5rem; display: flex; flex-direction: column; gap: 1rem; transition: var(--transition); box-shadow: 0 4px 12px rgba(0,0,0,0.03); }
.error-card:hover { border-color: var(--text-muted); box-shadow: 0 6px 16px rgba(0,0,0,0.06); }
body.dark-mode .error-card { box-shadow: 0 4px 12px rgba(0,0,0,0.2); }
.error-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; }
.err-subj-badge { font-size: 0.7rem; text-transform: uppercase; font-weight: 700; color: var(--text-main); letter-spacing: 0.05em; }

.review-item { display: flex; align-items: center; justify-content: space-between; padding: 0.8rem; background: var(--bg-color); border: 1px solid var(--border-color); border-radius: var(--radius); gap: 0.5rem; transition: var(--transition); }
.review-item:hover { border-color: var(--text-muted); }
.btn-complete-rev { background: transparent; cursor: pointer; border-radius: var(--radius); display: flex; align-items: center; justify-content: center; transition: all 0.2s ease; }
.btn-complete-rev:hover { background: rgba(39, 201, 63, 0.1); transform: scale(1.05); }
.due-today { border-left: 3px solid var(--danger-color); }

@media (max-width: 800px) {
    header { grid-template-columns: 1fr; display: flex; flex-direction: column; gap: 1rem; }
    .dashboard-grid { grid-template-columns: 1fr; }
    .heatmap-grid { grid-template-columns: repeat(10, 1fr); }
    #time-main { font-size: 4rem; }
    #time-ms { font-size: 2rem; }
    #cycle-subject { font-size: 1.5rem; }
    body.focus-active .stopwatch { transform: scale(1.1) translateZ(0); }
    .schedule-table th, .schedule-table td { padding: 0.8rem 0.3rem; font-size: 0.8rem; }
    .btn-remove-row { left: 0; }
}

/* --- ESTILOS EXTRAS PARA AS NOVAS TELAS FLUTUANTES --- */
#manage-rev-modal .modal-content {
    background: var(--bg-color); /* Fundo um pouco mais escuro para contrastar os cards */
}

#manage-rev-modal .error-card {
    background: var(--surface-color); /* Mantém os cards em destaque */
}

#manage-rev-modal::-webkit-scrollbar {
    width: 8px;
}
#manage-rev-modal::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

@media print {
    @page { 
        size: A4 landscape; /* Mudei para paisagem (deitado) para caber melhor os 7 dias, mas se quiser em pé, volte para 'portrait' */
        margin: 1.5cm; 
    }
    
    body { 
        background: #fff !important; 
        color: #000 !important; 
        -webkit-print-color-adjust: exact !important; 
        print-color-adjust: exact !important; 
    }
    
    body * { 
        visibility: hidden; 
        background: transparent !important; 
    }
    
    #tasks, #tasks * { 
        visibility: visible; 
    }
    
    #tasks { 
        position: absolute; 
        left: 0; 
        top: 0; 
        width: 100%; 
        padding: 0 !important; 
        margin: 0 !important; 
    }
    
    /* Oculta botões, adicionar matéria e o título */
    #btn-print-schedule, 
    .add-subject-wrapper, 
    .subject-bank-panel, 
    #btn-add-cycle, 
    .btn-remove-row,
    #tasks h2 { 
        display: none !important; 
    }

    .table-responsive { 
        overflow: visible !important; 
    }

    /* Esconde a coluna de horários */
    #schedule-table th:first-child,
    #schedule-table td:first-child {
        display: none !important;
    }
    
    /* Forçando a tabela a juntar as bordas com borda externa MUITO grossa */
    #schedule-table { 
        width: 100% !important; 
        border-collapse: collapse !important; 
        font-family: 'Inter', Arial, sans-serif !important; 
        border: 3px solid #000 !important; 
        margin-top: 1cm !important;
    }
    
    /* Bordas internas mais grossas (2px) para o navegador não ignorar */
    #schedule-table th, 
    #schedule-table td { 
        border: 2px solid #000 !important; 
        padding: 1.5rem 0.5rem !important; 
        text-align: center !important; 
        vertical-align: middle !important; 
        font-size: 11pt !important; 
        color: #000 !important; 
        background-color: #fff !important; 
    }
    
    /* Linha de baixo do cabeçalho bem destacada (3px) */
    #schedule-table th { 
        font-weight: bold !important; 
        text-transform: uppercase !important; 
        letter-spacing: 0.05em !important; 
        font-size: 10pt !important; 
        border-bottom: 3px solid #000 !important; 
    }
}