/* ==========================================================================
   ENTERPRISE DESIGN SYSTEM - GST SERVICE MANAGEMENT & PARTNER PORTAL
   Design Tokens & Typography Specification Implementation
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
    /* ----------------------------------------------------------------------
       1. COLOR TOKENS
       ---------------------------------------------------------------------- */
    --color-primary-navy: #142D4E;   /* Sidebar, branding, headings */
    --color-primary-blue: #2563EB;   /* Primary buttons, links, active states */
    --color-sky-blue: #38BDF8;       /* Highlights, charts, accents */
    --color-hover-blue: #1D4ED8;     /* Hover and pressed states */
    --color-bg: #F3F6FA;             /* Main application background */
    --color-surface: #FFFFFF;        /* Cards, forms, dialogs */
    --color-border: #DCE4EE;         /* Table borders and dividers */
    --color-text-primary: #172B4D;   /* Main text */
    --color-text-secondary: #64748B; /* Descriptions and metadata */
    
    /* Semantic Status Tokens */
    --color-success: #15803D;        /* Approved and successful */
    --color-warning: #B45309;        /* Pending and attention required */
    --color-danger: #B91C1C;         /* Rejected, failed, destructive actions */
    --color-info: #0369A1;           /* Information and in-progress states */

    /* Subtle Tints & Borders for Badges and Callouts */
    --color-primary-subtle: #EFF6FF;
    --color-primary-border: #BFDBFE;
    --color-success-subtle: #F0FDF4;
    --color-success-border: #BBF7D0;
    --color-warning-subtle: #FFFBEB;
    --color-warning-border: #FDE68A;
    --color-danger-subtle: #FEF2F2;
    --color-danger-border: #FECACA;
    --color-info-subtle: #F0F9FF;
    --color-info-border: #BAE6FD;
    --color-sky-subtle: #F0F9FF;
    --color-sky-border: #7DD3FC;

    /* Sidebar Palette */
    --sidebar-bg: #142D4E;
    --sidebar-surface: #0E223D;
    --sidebar-border: rgba(220, 228, 238, 0.12);
    --sidebar-text: #94A3B8;
    --sidebar-text-hover: #FFFFFF;
    --sidebar-text-active: #FFFFFF;
    --sidebar-active-bg: #2563EB;

    /* ----------------------------------------------------------------------
       2. TYPOGRAPHY SCALE & FONT WEIGHTS
       ---------------------------------------------------------------------- */
    --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', SFMono-Regular, Menlo, Monaco, Consolas, monospace;

    /* Element Specifications */
    --fs-page-title: 26px;        /* Desktop size: 24–30 px */
    --fw-page-title: 700;         /* Weight: 700 */

    --fs-section-heading: 19px;   /* Desktop size: 18–20 px */
    --fw-section-heading: 600;    /* Weight: 600 */

    --fs-card-heading: 15px;      /* Desktop size: 14–16 px */
    --fw-card-heading: 600;       /* Weight: 600 */

    --fs-body: 14px;              /* Desktop size: 14 px */
    --fw-body: 400;               /* Weight: 400 */

    --fs-table: 13.5px;           /* Desktop size: 13–14 px */
    --fw-table: 400;              /* Weight: 400 */

    --fs-form-label: 13.5px;      /* Desktop size: 13–14 px */
    --fw-form-label: 500;         /* Weight: 500 */

    --fs-helper: 12px;            /* Desktop size: 12 px */
    --fw-helper: 400;             /* Weight: 400 */

    --fs-kpi-value: 28px;         /* Desktop size: 26–32 px */
    --fw-kpi-value: 700;          /* Weight: 700 */

    /* Elevation & Radii */
    --shadow-card: 0 1px 3px 0 rgba(20, 45, 78, 0.05), 0 4px 12px 0 rgba(20, 45, 78, 0.04);
    --shadow-card-hover: 0 4px 6px -1px rgba(20, 45, 78, 0.08), 0 16px 24px -4px rgba(20, 45, 78, 0.08);
    --radius-sm: 8px;
    --radius-md: 10px;
    --radius-lg: 12px;
    --radius-full: 9999px;
}

/* ==========================================================================
   GLOBAL BASE STYLING
   ========================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-text-primary);
    font-size: var(--fs-body);
    font-weight: var(--fw-body);
    line-height: 1.5;
    letter-spacing: -0.01em;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ==========================================================================
   TYPOGRAPHY HIERARCHY
   ========================================================================== */
/* Page title: 24–30 px, weight 700 */
.page-title, h4, h4.fw-bold {
    font-size: var(--fs-page-title) !important;
    font-weight: var(--fw-page-title) !important;
    color: var(--color-primary-navy) !important;
    letter-spacing: -0.02em;
    line-height: 1.25;
}

/* Section heading: 18–20 px, weight 600 */
.section-heading, h5, h5.fw-bold {
    font-size: var(--fs-section-heading) !important;
    font-weight: var(--fw-section-heading) !important;
    color: var(--color-primary-navy) !important;
    letter-spacing: -0.015em;
    line-height: 1.3;
}

/* Card heading: 14–16 px, weight 600 */
.card-heading, h6, h6.fw-bold, .card-title, .modal-title {
    font-size: var(--fs-card-heading) !important;
    font-weight: var(--fw-card-heading) !important;
    color: var(--color-primary-navy) !important;
    letter-spacing: -0.01em;
    line-height: 1.35;
}

/* KPI value: 26–32 px, weight 700 */
.kpi-value, h2, h3, .stat-card h2, .stat-card h3 {
    font-size: var(--fs-kpi-value) !important;
    font-weight: var(--fw-kpi-value) !important;
    letter-spacing: -0.025em;
    line-height: 1.2;
}

/* Body text: 14 px, weight 400 */
p, .body-text {
    font-size: var(--fs-body);
    font-weight: var(--fw-body);
    color: var(--color-text-primary);
}

/* Form label: 13–14 px, weight 500 */
.form-label, label {
    font-size: var(--fs-form-label) !important;
    font-weight: var(--fw-form-label) !important;
    color: var(--color-text-primary) !important;
    margin-bottom: 5px;
}

/* Helper text & metadata: 12 px, weight 400 */
.helper-text, .text-muted.small, small, .form-text, .meta-text {
    font-size: var(--fs-helper) !important;
    font-weight: var(--fw-helper) !important;
    color: var(--color-text-secondary) !important;
    line-height: 1.45;
}

/* Links */
a {
    color: var(--color-primary-blue);
    text-decoration: none;
    transition: color 0.15s ease-in-out;
}

a:hover {
    color: var(--color-hover-blue);
}

/* ==========================================================================
   CARDS & SURFACES (#FFFFFF, Border #DCE4EE)
   ========================================================================== */
.stat-card, .table-card, .premium-card, .card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
}

.stat-card:hover {
    box-shadow: var(--shadow-card-hover);
    border-color: #CBD5E1;
    transform: translateY(-2px);
}

/* Top accent bars for stat cards */
.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: transparent;
    transition: background 0.2s ease;
}

.stat-card.card-primary::before { background: linear-gradient(90deg, var(--color-primary-blue), var(--color-sky-blue)); }
.stat-card.card-success::before { background: linear-gradient(90deg, var(--color-success), #22C55E); }
.stat-card.card-warning::before { background: linear-gradient(90deg, var(--color-warning), #F59E0B); }
.stat-card.card-info::before    { background: linear-gradient(90deg, var(--color-info), var(--color-sky-blue)); }

/* ==========================================================================
   TABLES (Table content: 13–14 px, 400 | Border: #DCE4EE)
   ========================================================================== */
.table {
    --bs-table-bg: transparent;
    margin-bottom: 0;
    border-color: var(--color-border);
}

.table th {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--color-text-secondary);
    border-bottom: 1px solid var(--color-border);
    padding: 12px 16px;
    background-color: #F8FAFD;
}

.table td {
    padding: 13px 16px;
    vertical-align: middle;
    border-bottom: 1px solid var(--color-border);
    font-size: var(--fs-table);
    font-weight: var(--fw-table);
    color: var(--color-text-primary);
    transition: background-color 0.15s;
}

.table-hover tbody tr:hover td {
    background-color: #F8FAFD;
}

/* Table Card wrapper */
.table-card {
    padding: 0;
}

/* ==========================================================================
   FORMS & INPUTS (Surface #FFFFFF, Border #DCE4EE)
   ========================================================================== */
.form-control, .form-select {
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    padding: 8px 13px;
    font-size: 13.5px;
    color: var(--color-text-primary);
    background-color: var(--color-surface);
    transition: all 0.18s ease-in-out;
}

.form-control::placeholder {
    color: #94A3B8;
}

.form-control:focus, .form-select:focus {
    border-color: var(--color-primary-blue);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.14);
    background-color: var(--color-surface);
    color: var(--color-text-primary);
}

.input-group-text {
    border-color: var(--color-border);
    background-color: #F8FAFD;
    color: var(--color-text-secondary);
    font-size: 13.5px;
}

/* ==========================================================================
   BUTTONS (Primary Blue: #2563EB, Hover Blue: #1D4ED8)
   ========================================================================== */
.btn {
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 13.5px;
    padding: 8px 16px;
    letter-spacing: -0.01em;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-sm {
    padding: 5px 12px;
    font-size: 12.5px;
}

.btn-primary {
    background-color: var(--color-primary-blue) !important;
    border-color: var(--color-primary-blue) !important;
    color: #FFFFFF !important;
    box-shadow: 0 2px 4px rgba(37, 99, 235, 0.18);
}

.btn-primary:hover, .btn-primary:focus {
    background-color: var(--color-hover-blue) !important;
    border-color: var(--color-hover-blue) !important;
    box-shadow: 0 4px 10px rgba(37, 99, 235, 0.28);
    transform: translateY(-1px);
}

.btn-primary:active {
    background-color: #1E40AF !important;
    border-color: #1E40AF !important;
    transform: translateY(0);
}

.btn-outline-primary {
    color: var(--color-primary-blue) !important;
    border-color: var(--color-primary-blue) !important;
    background-color: transparent !important;
}

.btn-outline-primary:hover {
    background-color: var(--color-primary-blue) !important;
    color: #FFFFFF !important;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
    transform: translateY(-1px);
}

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

.btn-success:hover {
    background-color: #166534 !important;
    border-color: #166534 !important;
    transform: translateY(-1px);
}

.btn-warning {
    background-color: var(--color-warning) !important;
    border-color: var(--color-warning) !important;
    color: #FFFFFF !important;
}

.btn-warning:hover {
    background-color: #92400E !important;
    border-color: #92400E !important;
    transform: translateY(-1px);
}

.btn-danger {
    background-color: var(--color-danger) !important;
    border-color: var(--color-danger) !important;
    color: #FFFFFF !important;
}

.btn-danger:hover {
    background-color: #991B1B !important;
    border-color: #991B1B !important;
    transform: translateY(-1px);
}

.btn-info {
    background-color: var(--color-info) !important;
    border-color: var(--color-info) !important;
    color: #FFFFFF !important;
}

.btn-dark {
    background-color: var(--color-primary-navy) !important;
    border-color: var(--color-primary-navy) !important;
    color: #FFFFFF !important;
}

.btn-dark:hover {
    background-color: #0E223D !important;
    border-color: #0E223D !important;
    transform: translateY(-1px);
}

.btn-outline-secondary {
    border-color: var(--color-border) !important;
    color: var(--color-text-secondary) !important;
    background-color: #FFFFFF !important;
}

.btn-outline-secondary:hover {
    background-color: #F8FAFD !important;
    color: var(--color-text-primary) !important;
    border-color: #CBD5E1 !important;
}

/* ==========================================================================
   STATUS BADGES (Success: #15803D, Warning: #B45309, Danger: #B91C1C, Info: #0369A1)
   ========================================================================== */
.badge {
    font-weight: 600;
    font-size: 11.5px;
    letter-spacing: 0.02em;
    padding: 0.35em 0.75em;
    border-radius: var(--radius-sm);
}

.badge.rounded-pill {
    padding-left: 0.85em;
    padding-right: 0.85em;
    border-radius: var(--radius-full);
}

.badge-soft-primary {
    background-color: var(--color-primary-subtle);
    color: var(--color-primary-blue);
    border: 1px solid var(--color-primary-border);
}

.badge-soft-success {
    background-color: var(--color-success-subtle);
    color: var(--color-success);
    border: 1px solid var(--color-success-border);
}

.badge-soft-warning {
    background-color: var(--color-warning-subtle);
    color: var(--color-warning);
    border: 1px solid var(--color-warning-border);
}

.badge-soft-danger {
    background-color: var(--color-danger-subtle);
    color: var(--color-danger);
    border: 1px solid var(--color-danger-border);
}

.badge-soft-info {
    background-color: var(--color-info-subtle);
    color: var(--color-info);
    border: 1px solid var(--color-info-border);
}

.badge-soft-sky {
    background-color: var(--color-sky-subtle);
    color: #0284C7;
    border: 1px solid var(--color-sky-border);
}

/* Text status utility classes */
.text-navy     { color: var(--color-primary-navy) !important; }
.text-primary  { color: var(--color-primary-blue) !important; }
.text-sky      { color: var(--color-sky-blue) !important; }
.text-success  { color: var(--color-success) !important; }
.text-warning  { color: var(--color-warning) !important; }
.text-danger   { color: var(--color-danger) !important; }
.text-info     { color: var(--color-info) !important; }
.text-muted    { color: var(--color-text-secondary) !important; }

/* ==========================================================================
   SIDEBAR & NAVIGATION (Primary Navy: #142D4E)
   ========================================================================== */
#sidebar, #partner-sidebar {
    background-color: var(--sidebar-bg) !important;
    border-right: 1px solid var(--sidebar-border) !important;
    height: 100vh !important;
    max-height: 100vh !important;
    position: fixed !important;
    top: 0 !important;
    bottom: 0 !important;
    display: flex !important;
    flex-direction: column !important;
    overflow: hidden !important;
    z-index: 1000 !important;
}

.sidebar-header {
    background-color: var(--sidebar-bg) !important;
    border-bottom: 1px solid var(--sidebar-border) !important;
    flex-shrink: 0 !important;
}

.sidebar-body {
    flex: 1 1 auto !important;
    min-height: 0 !important;
    overflow-y: auto !important;
    overflow-x: hidden !important;
    overscroll-behavior: contain;
    scrollbar-width: thin;
    scrollbar-color: rgba(220, 228, 238, 0.2) transparent;
}

.sidebar-body::-webkit-scrollbar {
    width: 4px;
}

.sidebar-body::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar-body::-webkit-scrollbar-thumb {
    background: rgba(220, 228, 238, 0.18);
    border-radius: 4px;
}

.sidebar-body::-webkit-scrollbar-thumb:hover {
    background: rgba(220, 228, 238, 0.35);
}

.sidebar-footer {
    background-color: var(--sidebar-surface) !important;
    border-top: 1px solid var(--sidebar-border) !important;
    flex-shrink: 0 !important;
    margin-top: auto !important;
}

/* Nav links in sidebar */
.nav-pill-premium, .nav-pill-partner {
    color: var(--sidebar-text);
    padding: 10px 14px;
    font-size: 13.5px;
    font-weight: 500;
    border-radius: var(--radius-md);
    margin: 2px 10px;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    text-decoration: none;
}

.nav-pill-premium:hover, .nav-pill-partner:hover {
    color: var(--sidebar-text-hover);
    background-color: rgba(255, 255, 255, 0.08);
    transform: translateX(3px);
}

.nav-pill-premium.active, .nav-pill-partner.active {
    color: #FFFFFF;
    background-color: var(--color-primary-blue) !important;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
}

/* Branding icon container */
.brand-icon-box, .partner-logo-box {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, var(--color-primary-blue), var(--color-sky-blue)) !important;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFFFFF;
    font-size: 18px;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

/* Pulse status dot */
.pulse-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--color-sky-blue);
    position: relative;
    margin-right: 6px;
}

.pulse-dot::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: inherit;
    animation: pulseGlow 1.8s infinite;
}

@keyframes pulseGlow {
    0%   { transform: scale(1); opacity: 0.9; }
    100% { transform: scale(2.5); opacity: 0; }
}

/* ==========================================================================
   TOPBAR & MAIN LAYOUT
   ========================================================================== */
#main-content, #partner-main {
    background-color: var(--color-bg) !important;
    min-height: 100vh;
}

.topbar, .partner-topbar {
    background: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border) !important;
    padding: 13px 32px;
}

/* Balance Pill in Partner Header */
.balance-badge-premium {
    background-color: var(--color-success-subtle);
    color: var(--color-success);
    border: 1px solid var(--color-success-border);
    padding: 7px 16px;
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: 13.5px;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 1px 3px rgba(21, 128, 61, 0.08);
}

/* ==========================================================================
   MODALS & DIALOGS (Surface #FFFFFF, Border #DCE4EE)
   ========================================================================== */
.modal-content {
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: 0 20px 45px -10px rgba(20, 45, 78, 0.22);
    overflow: hidden;
}

.modal-header {
    border-bottom: 1px solid var(--color-border);
    padding: 16px 22px;
    background-color: #F8FAFD;
}

.modal-body {
    padding: 22px;
}

.modal-footer {
    border-top: 1px solid var(--color-border);
    padding: 14px 22px;
    background-color: #F8FAFD;
}

/* ==========================================================================
   ALERT BOXES
   ========================================================================== */
.alert-success {
    background-color: var(--color-success-subtle);
    border-color: var(--color-success-border);
    color: var(--color-success);
}

.alert-warning {
    background-color: var(--color-warning-subtle);
    border-color: var(--color-warning-border);
    color: var(--color-warning);
}

.alert-danger {
    background-color: var(--color-danger-subtle);
    border-color: var(--color-danger-border);
    color: var(--color-danger);
}

.alert-info {
    background-color: var(--color-info-subtle);
    border-color: var(--color-info-border);
    color: var(--color-info);
}