/* ==========================================================================
   Design System: Flat Design Corporativo (design.md)
   Clean, Professional, Corporate Flat Design
   ========================================================================== */

:root {
    --color-primary: #007BFF;
    --color-primary-hover: #0069D9;
    --color-secondary: #343A40;
    --color-secondary-hover: #23272B;
    --color-neutral: #F8F9FA;
    --color-surface: #28A745;
    --color-surface-hover: #218838;
    --color-accent: #FFC107;
    --color-danger: #DC3545;
    --color-danger-hover: #C82333;
    --color-info: #17A2B8;
    --color-border: #DEE2E6;
    --color-border-subtle: #E9ECEF;
    --color-text-main: #212529;
    --color-text-muted: #6C757D;
    
    --radius-sm: 4px;
    --radius-md: 6px;
    --shadow-flat: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-hover: 0 3px 8px rgba(0, 0, 0, 0.08);
}

body {
    font-family: 'Lato', 'Sarabun', sans-serif;
    background-color: var(--color-neutral);
    color: var(--color-text-main);
    min-height: 100dvh;
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
}

.font-code {
    font-family: 'JetBrains Mono', 'Consolas', monospace;
}

/* Corporate Flat Card */
.flat-card {
    background-color: #FFFFFF;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-flat);
    transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.flat-card:hover {
    box-shadow: var(--shadow-hover);
    border-color: #CED4DA;
}

/* Flat Buttons */
.btn-flat {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: inherit;
    font-weight: 600;
    font-size: 0.875rem;
    line-height: 1.25rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.15s ease-in-out;
    text-decoration: none;
    user-select: none;
}

.btn-flat:active {
    transform: translateY(1px);
}

.btn-primary {
    background-color: var(--color-primary);
    color: #FFFFFF;
    border-color: var(--color-primary);
}
.btn-primary:hover {
    background-color: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
}

.btn-success {
    background-color: var(--color-surface);
    color: #FFFFFF;
    border-color: var(--color-surface);
}
.btn-success:hover {
    background-color: var(--color-surface-hover);
    border-color: var(--color-surface-hover);
}

.btn-secondary {
    background-color: #FFFFFF;
    color: var(--color-secondary);
    border-color: var(--color-border);
}
.btn-secondary:hover {
    background-color: #F1F3F5;
    border-color: #CED4DA;
    color: #111;
}

.btn-outline-danger {
    background-color: transparent;
    color: var(--color-danger);
    border-color: #F8D7DA;
}
.btn-outline-danger:hover {
    background-color: #F8D7DA;
    color: var(--color-danger-hover);
}

/* Metric / Stat Badge Tile */
.stat-tile {
    background-color: #FFFFFF;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    display: flex;
    flex-direction: column;
}

/* Form Inputs */
.form-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-secondary);
    margin-bottom: 0.25rem;
}

.form-control {
    width: 100%;
    padding: 0.45rem 0.65rem;
    font-size: 0.875rem;
    font-family: inherit;
    background-color: #FFFFFF;
    border: 1px solid #CED4DA;
    border-radius: var(--radius-sm);
    color: var(--color-text-main);
    box-sizing: border-box;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.2);
}

/* Excel Preview Table Styling (Strict Tahoma 8pt matching template) */
.sheet-table {
    width: 100%;
    border-collapse: collapse;
    background-color: #FFFFFF;
}

.sheet-table th, 
.sheet-table td {
    border: 1px solid #000000;
    padding: 3px 6px;
    font-size: 11px;
    line-height: 1.3;
    font-family: 'Tahoma', sans-serif;
}

.sheet-header {
    background-color: #EFEFEF;
    font-weight: 700;
    text-align: center;
    color: #000000;
    font-family: 'Tahoma', sans-serif;
}

.sheet-row-yellow {
    background-color: #FFFFCC;
    color: #000000;
}

.sheet-row-normal {
    background-color: #FFFFFF;
    color: #6C757D;
}

/* Description & Location columns have NO fill color */
.sheet-cell-nofill {
    background-color: #FFFFFF !important;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: #F1F1F1;
}
::-webkit-scrollbar-thumb {
    background: #C1C1C1;
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: #A8A8A8;
}

/* Authentication Gate Styles */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-6px); }
    40%, 80% { transform: translateX(6px); }
}

.animate-shake {
    animation: shake 0.35s ease-in-out;
}

html.auth-locked body > header,
html.auth-locked body > main,
html.auth-locked body > footer {
    filter: blur(5px);
    pointer-events: none;
    user-select: none;
}