/**
 * Google Material Design 3 (M3) System CSS
 * System: Fawatirati - Arabic RTL Financial System
 * Font: Cairo (with tabular numbers support for financial data)
 */

:root {
    /* -------------------------------------------------------------------------
       1. Material Design 3 Core Color Palette
       ------------------------------------------------------------------------- */
    --md-primary: #0B57D0;
    --md-on-primary: #FFFFFF;
    --md-primary-container: #D3E3FD;
    --md-on-primary-container: #041E49;
    --md-primary-hover: #0842A0;

    --md-page-bg: #F8F9FA;
    --md-surface: #FFFFFF;
    --md-surface-variant: #F1F3F4;
    --md-surface-dim: #ECEFF1;

    --md-primary-text: #202124;
    --md-secondary-text: #5F6368;
    --md-tertiary-text: #80868B;
    --md-disabled-text: #BDC1C6;

    --md-border: #DADCE0;
    --md-border-variant: #E8EAED;

    /* Semantic / Functional Colors */
    --md-success: #137333;
    --md-success-container: #E6F4EA;
    --md-on-success-container: #0D5223;

    --md-warning: #B06000;
    --md-warning-container: #FEF7E0;
    --md-on-warning-container: #633600;

    --md-error: #C5221F;
    --md-error-container: #FCE8E6;
    --md-on-error-container: #7C100E;
    --md-error-hover: #A51B18;

    --md-info: #1A73E8;
    --md-info-container: #E8F0FE;
    --md-on-info-container: #174EA6;

    /* Backward compatibility aliases */
    --bg-body: var(--md-page-bg);
    --bg-card: var(--md-surface);
    --text-main: var(--md-primary-text);
    --text-muted: var(--md-secondary-text);
    --border: var(--md-border);
    --primary: var(--md-primary);
    --danger-light: var(--md-error-container);

    /* -------------------------------------------------------------------------
       2. Shapes & Radii (Practical, Non-exaggerated)
       ------------------------------------------------------------------------- */
    --md-shape-xs: 4px;
    --md-shape-sm: 8px;
    --md-shape-md: 10px;
    --md-shape-lg: 12px;
    --md-shape-xl: 16px;
    --md-shape-full: 9999px;

    /* -------------------------------------------------------------------------
       3. Elevations & Shadows (Subtle, Clean)
       ------------------------------------------------------------------------- */
    --md-elevation-0: none;
    --md-elevation-1: 0 1px 2px 0 rgba(60,64,67,0.15), 0 1px 3px 1px rgba(60,64,67,0.08);
    --md-elevation-2: 0 1px 2px 0 rgba(60,64,67,0.2), 0 2px 6px 2px rgba(60,64,67,0.1);
    --md-elevation-3: 0 1px 3px 0 rgba(60,64,67,0.2), 0 4px 8px 3px rgba(60,64,67,0.12);

    /* -------------------------------------------------------------------------
       4. Control Dimensions & Typography
       ------------------------------------------------------------------------- */
    --md-control-height: 40px;
    --md-control-height-sm: 34px;
    --md-control-height-lg: 46px;
}

/* -----------------------------------------------------------------------------
   Global Typography & RTL Reset
   ----------------------------------------------------------------------------- */
html {
    direction: rtl;
    font-family: 'Cairo', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--md-page-bg);
    color: var(--md-primary-text);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: inherit;
    background-color: var(--md-page-bg);
    color: var(--md-primary-text);
    line-height: 1.5;
}

/* Ensure Cairo is applied to all controls */
button, input, optgroup, select, textarea {
    font-family: inherit;
}

/* Financial figures and tabular numbers */
.font-tabular, table td, .financial-figure {
    font-feature-settings: 'tnum' 1, 'lnum' 1;
    letter-spacing: 0.01em;
}

/* Google Material Symbols Font Rendering */
.material-symbols-rounded {
    font-family: 'Material Symbols Rounded', sans-serif;
    font-weight: normal;
    font-style: normal;
    font-size: 20px;
    line-height: 1;
    display: inline-block;
    white-space: nowrap;
    word-wrap: normal;
    direction: ltr; /* Symbols themselves are directional ltr glyphs */
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    vertical-align: middle;
}

/* -----------------------------------------------------------------------------
   Buttons (Material Design 3 Button Roles)
   ----------------------------------------------------------------------------- */
.m3-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: var(--md-control-height);
    padding: 0 16px;
    font-size: 14px;
    font-weight: 600;
    border-radius: var(--md-shape-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.15s ease-in-out;
    text-decoration: none;
    white-space: nowrap;
    user-select: none;
    outline: none;
}

.m3-btn:focus-visible {
    box-shadow: 0 0 0 3px rgba(11, 87, 208, 0.25);
}

.m3-btn:disabled, .m3-btn[disabled] {
    opacity: 0.55;
    cursor: not-allowed;
    pointer-events: none;
}

/* Button Variants */
.m3-btn-primary {
    background-color: var(--md-primary);
    color: var(--md-on-primary);
}
.m3-btn-primary:hover {
    background-color: var(--md-primary-hover);
    box-shadow: var(--md-elevation-1);
}

.m3-btn-tonal, .m3-btn-secondary {
    background-color: var(--md-primary-container);
    color: var(--md-on-primary-container);
}
.m3-btn-tonal:hover, .m3-btn-secondary:hover {
    background-color: #C2D7FA;
    box-shadow: var(--md-elevation-1);
}

.m3-btn-outlined {
    background-color: transparent;
    color: var(--md-primary);
    border-color: var(--md-border);
}
.m3-btn-outlined:hover {
    background-color: var(--md-surface-variant);
    border-color: var(--md-primary);
}

.m3-btn-ghost {
    background-color: transparent;
    color: var(--md-secondary-text);
}
.m3-btn-ghost:hover {
    background-color: var(--md-surface-variant);
    color: var(--md-primary-text);
}

.m3-btn-danger {
    background-color: var(--md-error);
    color: #FFFFFF;
}
.m3-btn-danger:hover {
    background-color: var(--md-error-hover);
    box-shadow: var(--md-elevation-1);
}

.m3-btn-danger-tonal {
    background-color: var(--md-error-container);
    color: var(--md-on-error-container);
}
.m3-btn-danger-tonal:hover {
    background-color: #F8D3CE;
}

/* Button Sizes */
.m3-btn-sm {
    height: var(--md-control-height-sm);
    padding: 0 12px;
    font-size: 13px;
    border-radius: var(--md-shape-sm);
}

.m3-btn-lg {
    height: var(--md-control-height-lg);
    padding: 0 24px;
    font-size: 15px;
    border-radius: var(--md-shape-md);
}

/* -----------------------------------------------------------------------------
   Form Inputs & Selects
   ----------------------------------------------------------------------------- */
.m3-input, .m3-select, .m3-textarea {
    width: 100%;
    height: var(--md-control-height);
    padding: 0 14px;
    font-size: 14px;
    color: var(--md-primary-text);
    background-color: var(--md-surface);
    border: 1px solid var(--md-border);
    border-radius: var(--md-shape-sm);
    outline: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
    text-align: right;
    direction: rtl;
}

.m3-textarea {
    height: auto;
    min-height: 84px;
    padding: 10px 14px;
}

.m3-input:hover, .m3-select:hover, .m3-textarea:hover {
    border-color: #B8BCC1;
}

.m3-input:focus, .m3-select:focus, .m3-textarea:focus {
    border-color: var(--md-primary);
    box-shadow: 0 0 0 3px rgba(11, 87, 208, 0.15);
}

.m3-input:disabled, .m3-select:disabled, .m3-textarea:disabled {
    background-color: var(--md-surface-variant);
    color: var(--md-disabled-text);
    cursor: not-allowed;
}

.m3-input-error, .m3-select-error {
    border-color: var(--md-error) !important;
}
.m3-input-error:focus, .m3-select-error:focus {
    box-shadow: 0 0 0 3px rgba(197, 34, 31, 0.15) !important;
}

.m3-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--md-primary-text);
    margin-bottom: 6px;
    text-align: right;
}

.m3-hint {
    font-size: 12px;
    color: var(--md-secondary-text);
    margin-top: 4px;
    text-align: right;
}

.m3-error-text {
    font-size: 12px;
    color: var(--md-error);
    margin-top: 4px;
    text-align: right;
}

/* Checkbox and Radio */
.m3-checkbox {
    width: 18px;
    height: 18px;
    accent-color: var(--md-primary);
    border-radius: 4px;
    cursor: pointer;
    vertical-align: middle;
}

/* -----------------------------------------------------------------------------
   Cards & Surfaces
   ----------------------------------------------------------------------------- */
.m3-card {
    background-color: var(--md-surface);
    border: 1px solid var(--md-border);
    border-radius: var(--md-shape-lg);
    padding: 20px;
    transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.m3-card-elevated {
    background-color: var(--md-surface);
    border: 1px solid var(--md-border-variant);
    border-radius: var(--md-shape-lg);
    box-shadow: var(--md-elevation-1);
    padding: 20px;
}

.m3-card-tonal {
    background-color: var(--md-surface-variant);
    border: 1px solid transparent;
    border-radius: var(--md-shape-lg);
    padding: 20px;
}

/* -----------------------------------------------------------------------------
   Tables (Clean M3 Data Table)
   ----------------------------------------------------------------------------- */
.m3-table-wrapper {
    width: 100%;
    overflow-x: auto;
    background-color: var(--md-surface);
    border: 1px solid var(--md-border);
    border-radius: var(--md-shape-lg);
    box-shadow: 0 1px 2px 0 rgba(0,0,0,0.03);
}

.m3-table {
    width: 100%;
    border-collapse: collapse;
    direction: rtl;
    text-align: right;
}

.m3-table th {
    background-color: var(--md-surface-variant);
    color: var(--md-secondary-text);
    font-size: 12px;
    font-weight: 700;
    padding: 10px 12px;
    border-bottom: 1px solid var(--md-border);
    white-space: nowrap;
}

.m3-table td {
    padding: 10px 12px;
    font-size: 13px;
    color: var(--md-primary-text);
    border-bottom: 1px solid var(--md-border-variant);
    vertical-align: middle;
}

.m3-table tbody tr {
    transition: background-color 0.15s ease;
}

.m3-table tbody tr:hover {
    background-color: #F8F9FA;
}

.m3-table tbody tr:last-child td {
    border-bottom: none;
}

/* -----------------------------------------------------------------------------
   Badges, Pills & Statuses
   ----------------------------------------------------------------------------- */
.m3-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: var(--md-shape-full);
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
    line-height: 1.2;
}

.m3-badge-dot {
    width: 6px;
    height: 6px;
    border-radius: var(--md-shape-full);
    flex-shrink: 0;
}

/* Harmonized Status Badge Colors */
.badge-paid {
    background-color: var(--md-success-container);
    color: var(--md-on-success-container);
    border: 1px solid rgba(19, 115, 51, 0.2);
}
.badge-paid .m3-badge-dot { background-color: var(--md-success); }

.badge-overdue {
    background-color: var(--md-error-container);
    color: var(--md-on-error-container);
    border: 1px solid rgba(197, 34, 31, 0.2);
}
.badge-overdue .m3-badge-dot { background-color: var(--md-error); }

.badge-partial {
    background-color: var(--md-warning-container);
    color: var(--md-on-warning-container);
    border: 1px solid rgba(176, 96, 0, 0.2);
}
.badge-partial .m3-badge-dot { background-color: var(--md-warning); }

.badge-submitted, .badge-approved {
    background-color: var(--md-info-container);
    color: var(--md-on-info-container);
    border: 1px solid rgba(26, 115, 232, 0.2);
}
.badge-submitted .m3-badge-dot, .badge-approved .m3-badge-dot { background-color: var(--md-info); }

.badge-under_review {
    background-color: #FEF7E0;
    color: #854D0E;
    border: 1px solid #FEF08A;
}
.badge-under_review .m3-badge-dot { background-color: #CA8A04; }

.badge-in_payment {
    background-color: #F3E8FD;
    color: #6B21A8;
    border: 1px solid #E9D5FF;
}
.badge-in_payment .m3-badge-dot { background-color: #9333EA; }

.badge-draft, .badge-received, .badge-pending {
    background-color: var(--md-surface-variant);
    color: var(--md-secondary-text);
    border: 1px solid var(--md-border);
}
.badge-draft .m3-badge-dot, .badge-received .m3-badge-dot, .badge-pending .m3-badge-dot { background-color: var(--md-secondary-text); }

/* Filter Chips */
.m3-filter-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    height: 32px;
    padding: 0 12px;
    border-radius: var(--md-shape-sm);
    font-size: 12.5px;
    font-weight: 500;
    border: 1px solid var(--md-border);
    background-color: var(--md-surface);
    color: var(--md-primary-text);
    cursor: pointer;
    text-decoration: none;
    transition: all 0.15s ease;
}

.m3-filter-chip:hover {
    background-color: var(--md-surface-variant);
    border-color: #BDC1C6;
}

.m3-filter-chip.active {
    background-color: var(--md-primary-container);
    color: var(--md-on-primary-container);
    border-color: var(--md-primary);
    font-weight: 600;
}

/* -----------------------------------------------------------------------------
   Alerts & Notifications
   ----------------------------------------------------------------------------- */
.m3-alert {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 16px;
    border-radius: var(--md-shape-md);
    border: 1px solid transparent;
    font-size: 13.5px;
}

.m3-alert-success {
    background-color: var(--md-success-container);
    color: var(--md-on-success-container);
    border-color: #CEEAD6;
}

.m3-alert-warning {
    background-color: var(--md-warning-container);
    color: var(--md-on-warning-container);
    border-color: #FEEFC3;
}

.m3-alert-error {
    background-color: var(--md-error-container);
    color: var(--md-on-error-container);
    border-color: #FAD2CF;
}

.m3-alert-info {
    background-color: var(--md-info-container);
    color: var(--md-on-info-container);
    border-color: #D2E3FC;
}

/* -----------------------------------------------------------------------------
   Modal / Dialogs
   ----------------------------------------------------------------------------- */
.m3-dialog-backdrop {
    position: fixed;
    inset: 0;
    background-color: rgba(32, 33, 36, 0.45);
    backdrop-filter: blur(2px);
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
}

.m3-dialog-panel {
    background-color: var(--md-surface);
    border-radius: var(--md-shape-xl);
    box-shadow: var(--md-elevation-3);
    max-width: 520px;
    width: 100%;
    padding: 24px;
    border: 1px solid var(--md-border);
    animation: m3DialogEnter 0.2s cubic-bezier(0.0, 0.0, 0.2, 1);
}

@keyframes m3DialogEnter {
    from {
        opacity: 0;
        transform: scale(0.96);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* -----------------------------------------------------------------------------
   Loading Spinners & Progress Indicators
   ----------------------------------------------------------------------------- */
.m3-spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--md-border);
    border-top-color: var(--md-primary);
    border-radius: 50%;
    animation: m3Spin 0.75s linear infinite;
    display: inline-block;
}

.m3-spinner-sm {
    width: 16px;
    height: 16px;
    border-width: 2px;
}

.m3-spinner-lg {
    width: 36px;
    height: 36px;
    border-width: 3.5px;
}

@keyframes m3Spin {
    to { transform: rotate(360deg); }
}

.m3-progress-linear {
    width: 100%;
    height: 4px;
    background-color: var(--md-primary-container);
    border-radius: var(--md-shape-full);
    overflow: hidden;
    position: relative;
}

.m3-progress-linear::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    background-color: var(--md-primary);
    width: 40%;
    animation: m3Indeterminate 1.4s ease-in-out infinite;
    border-radius: var(--md-shape-full);
}

@keyframes m3Indeterminate {
    0% { left: -40%; width: 40%; }
    50% { left: 30%; width: 50%; }
    100% { left: 100%; width: 40%; }
}