:root {
    /* RegiFlex Palette */
    --regiflex-blue-dark: #0a192f;
    --regiflex-blue-primary: #0056b3;
    --regiflex-blue-light: #00a8e8;
    --regiflex-green-primary: #00c853;
    --regiflex-orange: #ff9800;
    
    /* Theme Variables */
    --bg-color: #f0f2f5;
    --canvas-bg: #ffffff;
    --text-color: #1a1a1a;
    --text-muted: #666666;
    --border-color: #d1d5db;
    --header-bg: #ffffff;
    --accent-color: var(--regiflex-blue-primary);
    --placeholder-color: #9ca3af;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

[data-theme="dark"] {
    --bg-color: #0f172a;
    --canvas-bg: #1e293b;
    --text-color: #f8fafc;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --header-bg: #1e293b;
    --placeholder-color: #475569;
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
}

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

body {
    font-family: 'Inter', 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
    line-height: 1.5;
}

header {
    background-color: var(--header-bg);
    padding: 0.75rem 1.5rem;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border-color);
}

.header-content {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.logo-container {
    display: none; /* Removido do topo central */
}

.controls {
    display: flex;
    gap: 8px;
    align-items: center;
}

button, select {
    padding: 8px 14px;
    border: 1px solid var(--border-color);
    background: var(--canvas-bg);
    color: var(--text-color);
    cursor: pointer;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s ease;
}

button:hover {
    background-color: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
    transform: translateY(-1px);
}

#btn-theme {
    padding: 8px;
    border-radius: 50%;
    width: 36px;
    height: 36px;
    justify-content: center;
}

#canvas-container {
    max-width: 1400px;
    margin: 2rem auto;
    background: var(--canvas-bg);
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.canvas-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 25px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
}

.title-section h1 {
    font-size: 1.75rem;
    color: var(--regiflex-blue-dark);
    font-weight: 800;
    letter-spacing: -0.025em;
}

[data-theme="dark"] .title-section h1 {
    color: var(--regiflex-blue-light);
}

.meta-section {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 30px;
    width: 60%;
}

.logo-meta img {
    height: 60px;
    width: auto;
}

.meta-field {
    display: flex;
    flex-direction: column;
}

.meta-field label {
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.meta-field input {
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-color);
    color: var(--text-color);
    padding: 6px 10px;
    font-size: 0.85rem;
    transition: border-color 0.2s;
}

.meta-field input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(0, 86, 179, 0.1);
}

/* Canvas Grid Layout */
.canvas-grid {
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    grid-template-rows: repeat(3, auto);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

.block {
    border-right: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 15px;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    position: relative;
    background: var(--canvas-bg);
}

.block:hover {
    background-color: rgba(0, 86, 179, 0.02);
}

.block-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.block-header i {
    font-size: 1.1rem;
    color: var(--regiflex-blue-primary);
}

.block-header h2 {
    font-size: 0.75rem;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--regiflex-blue-dark);
}

[data-theme="dark"] .block-header h2 {
    color: var(--regiflex-blue-light);
}

.content {
    flex-grow: 1;
    font-size: 0.9rem;
    outline: none;
    white-space: pre-wrap;
    word-break: break-word;
    color: var(--text-color);
}

.content:empty:before {
    content: attr(placeholder);
    color: var(--placeholder-color);
    font-style: italic;
    font-size: 0.8rem;
    pointer-events: none;
}

/* Positioning specific blocks */
.key-partnerships { grid-column: span 2; grid-row: span 2; }
.block-group-vertical:nth-child(2) { grid-column: span 2; grid-row: span 2; }
.value-propositions { grid-column: span 2; grid-row: span 2; border-left: 1px solid var(--border-color); }
.block-group-vertical:nth-child(4) { grid-column: span 2; grid-row: span 2; }
.customer-segments { grid-column: span 2; grid-row: span 2; border-right: none; }

.cost-structure { grid-column: span 5; }
.revenue-streams { grid-column: span 5; border-right: none; }

.block-group-vertical {
    display: flex;
    flex-direction: column;
}

.block-group-vertical .block {
    flex: 1;
}

/* Footer */
.canvas-footer {
    margin-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    color: var(--text-muted);
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}

.footer-logo {
    height: 25px;
    opacity: 0.8;
}

.canvas-footer a {
    color: var(--regiflex-blue-primary);
    text-decoration: none;
    font-weight: 600;
}

.canvas-footer a:hover {
    text-decoration: underline;
}

/* Responsiveness */
@media (max-width: 1100px) {
    .canvas-grid {
        grid-template-columns: repeat(5, 1fr);
    }
    .key-partnerships, .block-group-vertical, .value-propositions, .customer-segments {
        grid-column: span 1;
    }
    .cost-structure, .revenue-streams {
        grid-column: span 2.5;
    }
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 15px;
    }
    .canvas-grid {
        grid-template-columns: 1fr;
    }
    .cost-structure, .revenue-streams {
        grid-column: span 1;
    }
    .meta-section {
        grid-template-columns: 1fr;
        width: 100%;
    }
    .canvas-header {
        flex-direction: column;
    }
}

/* Print & PDF Export Styles */
@media print, .printing-pdf {
    .no-print {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
    
    #canvas-container {
        margin: 0 !important;
        padding: 15px !important;
        width: 100% !important;
        max-width: none !important;
        border: 1px solid #000 !important;
        box-shadow: none !important;
        border-radius: 0 !important;
    }
    
    .canvas-header {
        border-bottom: 1px solid #000 !important;
    }
    
    .title-section h1 {
        color: black !important;
    }
    
    .meta-field input {
        background: transparent !important;
        border: none !important;
        border-bottom: 1px solid #eee !important;
        padding: 2px 0 !important;
        border-radius: 0 !important;
    }
    
    .canvas-grid {
        border: 1px solid #000 !important;
        border-radius: 0 !important;
    }
    
    .block {
        border-right: 1px solid #000 !important;
        border-bottom: 1px solid #000 !important;
        background: white !important;
        min-height: 150px !important; /* Ajuste para caber na página */
    }
    
    .block-header h2 {
        color: black !important;
    }
    
    .block-header i {
        color: black !important;
    }
    
    .content {
        color: black !important;
        font-size: 0.85rem !important;
    }
    
    .content:empty:before {
        content: "" !important;
    }
    
    .canvas-footer {
        border-top: 1px solid #000 !important;
    }
    
    @page {
        size: A4 landscape;
        margin: 0.5cm;
    }
}