/* ============================================
   ProTax Manager — Modern Design System v2.0
   Professional Tax & GST SaaS Platform
   ============================================ */

/* ---- Google Fonts ---- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ---- CSS Custom Properties ---- */
:root {
    /* Primary Palette — Deep Navy Trust */
    --pt-primary-50: #f0f4f8;
    --pt-primary-100: #d9e2ec;
    --pt-primary-200: #bcccdc;
    --pt-primary-300: #9fb3c8;
    --pt-primary-400: #829ab1;
    --pt-primary-500: #627d98;
    --pt-primary-600: #486581;
    --pt-primary-700: #334e68;
    --pt-primary-800: #243b53;
    --pt-primary-900: #102a43;
    --pt-primary-950: #061826;

    /* Accent — Emerald (Growth, Compliance, ITC) */
    --pt-accent: #10b981;
    --pt-accent-light: #34d399;
    --pt-accent-dark: #059669;
    --pt-accent-bg: #ecfdf5;

    /* Info — Sky Blue */
    --pt-info: #0ea5e9;
    --pt-info-light: #38bdf8;
    --pt-info-bg: #f0f9ff;

    /* Warning — Amber */
    --pt-warning: #f59e0b;
    --pt-warning-light: #fbbf24;
    --pt-warning-bg: #fffbeb;

    /* Danger — Rose */
    --pt-danger: #ef4444;
    --pt-danger-light: #f87171;
    --pt-danger-bg: #fef2f2;

    /* Purple — Premium */
    --pt-purple: #8b5cf6;
    --pt-purple-light: #a78bfa;
    --pt-purple-bg: #f5f3ff;

    /* Neutrals */
    --pt-bg: #f8fafc;
    --pt-surface: #ffffff;
    --pt-border: #e2e8f0;
    --pt-border-light: #f1f5f9;
    --pt-text-primary: #0f172a;
    --pt-text-secondary: #475569;
    --pt-text-muted: #94a3b8;
    --pt-text-inverse: #ffffff;

    /* Sidebar */
    --pt-sidebar-width: 260px;
    --pt-sidebar-bg: #0f172a;
    --pt-sidebar-hover: rgba(255,255,255,0.06);
    --pt-sidebar-active: rgba(16,185,129,0.15);
    --pt-sidebar-active-border: var(--pt-accent);

    /* Spacing */
    --pt-radius-sm: 6px;
    --pt-radius: 10px;
    --pt-radius-lg: 14px;
    --pt-radius-xl: 20px;
    --pt-shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
    --pt-shadow: 0 1px 3px rgba(0,0,0,0.06), 0 4px 12px rgba(0,0,0,0.04);
    --pt-shadow-lg: 0 4px 6px rgba(0,0,0,0.04), 0 12px 24px rgba(0,0,0,0.06);
    --pt-shadow-glow: 0 0 20px rgba(16,185,129,0.15);

    /* Transitions */
    --pt-transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---- Base ---- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--pt-text-primary);
    background: var(--pt-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ---- Layout ---- */
.pt-app {
    display: flex;
    min-height: 100vh;
}

.pt-sidebar {
    width: var(--pt-sidebar-width);
    background: var(--pt-sidebar-bg);
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 1040;
    display: flex;
    flex-direction: column;
    transition: var(--pt-transition);
}

.pt-sidebar-brand {
    padding: 24px 20px 16px;
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.pt-sidebar-brand-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--pt-accent), var(--pt-accent-dark));
    border-radius: var(--pt-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 18px;
    flex-shrink: 0;
}

.pt-sidebar-brand-text {
    color: white;
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: -0.3px;
}

.pt-sidebar-brand-text span {
    color: var(--pt-accent-light);
}

.pt-sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 12px 10px;
}

.pt-sidebar-nav::-webkit-scrollbar { width: 4px; }
.pt-sidebar-nav::-webkit-scrollbar-track { background: transparent; }
.pt-sidebar-nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 4px; }

.pt-nav-group { margin-bottom: 20px; }
.pt-nav-label {
    color: rgba(255,255,255,0.35);
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    padding: 0 12px;
    margin-bottom: 6px;
}

.pt-nav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    border-radius: var(--pt-radius-sm);
    color: rgba(255,255,255,0.6);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    transition: var(--pt-transition);
    margin-bottom: 2px;
    position: relative;
    border-left: 3px solid transparent;
}

.pt-nav-link:hover {
    color: white;
    background: var(--pt-sidebar-hover);
}

.pt-nav-link.active {
    color: var(--pt-accent-light);
    background: var(--pt-sidebar-active);
    border-left-color: var(--pt-sidebar-active-border);
}

.pt-nav-link i {
    font-size: 1.05rem;
    width: 22px;
    text-align: center;
    flex-shrink: 0;
}

.pt-nav-badge {
    margin-left: auto;
    font-size: 0.7rem;
    padding: 2px 7px;
    border-radius: 20px;
    background: rgba(239,68,68,0.2);
    color: var(--pt-danger-light);
    font-weight: 600;
}

.pt-sidebar-footer {
    padding: 14px 16px;
    border-top: 1px solid rgba(255,255,255,0.06);
}

.pt-user-card {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px;
    border-radius: var(--pt-radius);
    background: rgba(255,255,255,0.04);
    cursor: pointer;
    transition: var(--pt-transition);
}

.pt-user-card:hover { background: rgba(255,255,255,0.08); }

.pt-user-avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--pt-accent), var(--pt-info));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 13px;
    font-weight: 600;
    flex-shrink: 0;
    overflow: hidden;
}

.pt-user-avatar img { width: 100%; height: 100%; object-fit: cover; }

.pt-user-info { min-width: 0; }
.pt-user-name {
    color: white;
    font-size: 0.82rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.pt-user-role {
    color: rgba(255,255,255,0.4);
    font-size: 0.72rem;
}

/* ---- Main Content ---- */
.pt-main {
    flex: 1;
    margin-left: var(--pt-sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.pt-topbar {
    height: 64px;
    background: var(--pt-surface);
    border-bottom: 1px solid var(--pt-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 28px;
    position: sticky;
    top: 0;
    z-index: 1030;
}

.pt-topbar-left { display: flex; align-items: center; gap: 16px; }
.pt-topbar-right { display: flex; align-items: center; gap: 12px; }

.pt-page-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--pt-text-primary);
    letter-spacing: -0.4px;
}

.pt-breadcrumb {
    color: var(--pt-text-muted);
    font-size: 0.8rem;
}

.pt-topbar-btn {
    width: 38px;
    height: 38px;
    border-radius: var(--pt-radius);
    border: 1px solid var(--pt-border);
    background: transparent;
    color: var(--pt-text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--pt-transition);
    font-size: 1.1rem;
}

.pt-topbar-btn:hover {
    background: var(--pt-border-light);
    color: var(--pt-text-primary);
}

.pt-topbar-btn .badge-dot {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 8px;
    height: 8px;
    background: var(--pt-danger);
    border-radius: 50%;
    border: 2px solid var(--pt-surface);
}

.pt-content {
    flex: 1;
    padding: 28px;
}

/* ---- Cards ---- */
.pt-card {
    background: var(--pt-surface);
    border: 1px solid var(--pt-border);
    border-radius: var(--pt-radius-lg);
    box-shadow: var(--pt-shadow-sm);
    transition: var(--pt-transition);
}

.pt-card:hover { box-shadow: var(--pt-shadow); }

.pt-card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--pt-border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.pt-card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--pt-text-primary);
}

.pt-card-body { padding: 24px; }

/* ---- Stat Cards ---- */
.pt-stat-card {
    background: var(--pt-surface);
    border: 1px solid var(--pt-border);
    border-radius: var(--pt-radius-lg);
    padding: 24px;
    position: relative;
    overflow: hidden;
    transition: var(--pt-transition);
}

.pt-stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--pt-shadow);
}

.pt-stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--pt-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    margin-bottom: 16px;
}

.pt-stat-icon.emerald { background: var(--pt-accent-bg); color: var(--pt-accent-dark); }
.pt-stat-icon.sky { background: var(--pt-info-bg); color: var(--pt-info); }
.pt-stat-icon.amber { background: var(--pt-warning-bg); color: #b45309; }
.pt-stat-icon.rose { background: var(--pt-danger-bg); color: var(--pt-danger); }
.pt-stat-icon.purple { background: var(--pt-purple-bg); color: var(--pt-purple); }

.pt-stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--pt-text-primary);
    letter-spacing: -0.5px;
    margin-bottom: 4px;
}

.pt-stat-label {
    font-size: 0.85rem;
    color: var(--pt-text-muted);
    font-weight: 500;
}

.pt-stat-change {
    font-size: 0.8rem;
    font-weight: 600;
    margin-top: 8px;
    display: inline-flex;
    align-items: center;
    gap: 3px;
}

.pt-stat-change.up { color: var(--pt-accent-dark); }
.pt-stat-change.down { color: var(--pt-danger); }

/* ---- Tables ---- */
.pt-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.pt-table thead th {
    padding: 12px 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--pt-text-muted);
    border-bottom: 1px solid var(--pt-border);
    background: var(--pt-bg);
    white-space: nowrap;
}

.pt-table thead th:first-child { border-radius: var(--pt-radius-sm) 0 0 0; }
.pt-table thead th:last-child { border-radius: 0 var(--pt-radius-sm) 0 0; }

.pt-table tbody td {
    padding: 14px 20px;
    font-size: 0.875rem;
    color: var(--pt-text-secondary);
    border-bottom: 1px solid var(--pt-border-light);
    vertical-align: middle;
}

.pt-table tbody tr:hover td { background: var(--pt-border-light); }
.pt-table tbody tr:last-child td { border-bottom: none; }

/* ---- Badges ---- */
.pt-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
}

.pt-badge-emerald { background: var(--pt-accent-bg); color: var(--pt-accent-dark); }
.pt-badge-sky { background: var(--pt-info-bg); color: #0369a1; }
.pt-badge-amber { background: var(--pt-warning-bg); color: #92400e; }
.pt-badge-rose { background: var(--pt-danger-bg); color: #991b1b; }
.pt-badge-slate { background: #f1f5f9; color: #475569; }
.pt-badge-purple { background: var(--pt-purple-bg); color: #6d28d9; }

/* ---- Buttons ---- */
.pt-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 9px 18px;
    border-radius: var(--pt-radius);
    font-size: 0.875rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: var(--pt-transition);
    text-decoration: none;
    white-space: nowrap;
}

.pt-btn-primary {
    background: linear-gradient(135deg, var(--pt-accent), var(--pt-accent-dark));
    color: white;
    box-shadow: 0 2px 8px rgba(16,185,129,0.25);
}
.pt-btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(16,185,129,0.35);
    color: white;
}

.pt-btn-secondary {
    background: var(--pt-primary-900);
    color: white;
}
.pt-btn-secondary:hover { background: var(--pt-primary-800); color: white; }

.pt-btn-outline {
    background: transparent;
    border: 1.5px solid var(--pt-border);
    color: var(--pt-text-secondary);
}
.pt-btn-outline:hover {
    border-color: var(--pt-text-muted);
    color: var(--pt-text-primary);
    background: var(--pt-border-light);
}

.pt-btn-danger {
    background: var(--pt-danger-bg);
    color: var(--pt-danger);
    border: 1.5px solid #fecaca;
}
.pt-btn-danger:hover { background: var(--pt-danger); color: white; }

.pt-btn-sm { padding: 6px 12px; font-size: 0.8rem; }
.pt-btn-lg { padding: 12px 24px; font-size: 1rem; }

/* ---- Forms ---- */
.pt-form-label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--pt-text-secondary);
    margin-bottom: 6px;
}

.pt-form-input {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--pt-border);
    border-radius: var(--pt-radius);
    font-size: 0.9rem;
    color: var(--pt-text-primary);
    background: var(--pt-surface);
    transition: var(--pt-transition);
}

.pt-form-input:focus {
    outline: none;
    border-color: var(--pt-accent);
    box-shadow: 0 0 0 3px rgba(16,185,129,0.1);
}

.pt-form-input::placeholder { color: var(--pt-text-muted); }

.pt-form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%2394a3b8' viewBox='0 0 16 16'%3E%3Cpath d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

/* ---- Alerts ---- */
.pt-alert {
    padding: 14px 18px;
    border-radius: var(--pt-radius);
    font-size: 0.875rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.pt-alert-success { background: var(--pt-accent-bg); color: var(--pt-accent-dark); border: 1px solid #a7f3d0; }
.pt-alert-danger { background: var(--pt-danger-bg); color: var(--pt-danger); border: 1px solid #fecaca; }
.pt-alert-warning { background: var(--pt-warning-bg); color: #92400e; border: 1px solid #fde68a; }
.pt-alert-info { background: var(--pt-info-bg); color: #0369a1; border: 1px solid #bae6fd; }

/* ---- Auth Layout ---- */
.pt-auth-bg {
    min-height: 100vh;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    position: relative;
    overflow: hidden;
}

.pt-auth-bg::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 20%, rgba(16,185,129,0.08) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(14,165,233,0.06) 0%, transparent 50%);
    animation: pt-float 20s ease-in-out infinite;
}

@keyframes pt-float {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-20px, -20px); }
}

.pt-auth-card {
    background: rgba(255,255,255,0.03);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--pt-radius-xl);
    padding: 48px 40px;
    width: 100%;
    max-width: 440px;
    position: relative;
    z-index: 1;
}

.pt-auth-logo {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, var(--pt-accent), var(--pt-info));
    border-radius: var(--pt-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    margin: 0 auto 24px;
}

.pt-auth-title {
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 8px;
}

.pt-auth-subtitle {
    color: rgba(255,255,255,0.5);
    text-align: center;
    font-size: 0.9rem;
    margin-bottom: 32px;
}

.pt-auth-input {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--pt-radius);
    color: white;
    font-size: 0.9rem;
    transition: var(--pt-transition);
}

.pt-auth-input:focus {
    outline: none;
    border-color: var(--pt-accent);
    background: rgba(255,255,255,0.08);
    box-shadow: 0 0 0 3px rgba(16,185,129,0.15);
}

.pt-auth-input::placeholder { color: rgba(255,255,255,0.3); }

.pt-auth-label {
    display: block;
    color: rgba(255,255,255,0.6);
    font-size: 0.82rem;
    font-weight: 500;
    margin-bottom: 6px;
}

.pt-auth-btn {
    width: 100%;
    padding: 13px;
    background: linear-gradient(135deg, var(--pt-accent), var(--pt-accent-dark));
    border: none;
    border-radius: var(--pt-radius);
    color: white;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--pt-transition);
    box-shadow: 0 4px 14px rgba(16,185,129,0.3);
}

.pt-auth-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(16,185,129,0.4);
}

.pt-auth-footer {
    text-align: center;
    color: rgba(255,255,255,0.4);
    font-size: 0.85rem;
    margin-top: 24px;
}

.pt-auth-footer a {
    color: var(--pt-accent-light);
    text-decoration: none;
    font-weight: 500;
}

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

/* ---- Progress / Steps ---- */
.pt-stepper {
    display: flex;
    align-items: center;
    gap: 8px;
}

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

.pt-step-dot {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    flex-shrink: 0;
}

.pt-step-dot.done { background: var(--pt-accent); color: white; }
.pt-step-dot.active { background: var(--pt-accent-bg); color: var(--pt-accent-dark); border: 2px solid var(--pt-accent); }
.pt-step-dot.pending { background: #f1f5f9; color: var(--pt-text-muted); }

.pt-step-line {
    width: 32px;
    height: 2px;
    background: var(--pt-border);
    border-radius: 1px;
}
.pt-step-line.done { background: var(--pt-accent); }

/* ---- Responsive ---- */
@media (max-width: 991px) {
    .pt-sidebar { transform: translateX(-100%); }
    .pt-sidebar.open { transform: translateX(0); }
    .pt-main { margin-left: 0; }
    .pt-sidebar-toggle { display: flex !important; }
}

@media (min-width: 992px) {
    .pt-sidebar-toggle { display: none !important; }
}

/* ---- Utilities ---- */
.pt-text-primary { color: var(--pt-text-primary) !important; }
.pt-text-secondary { color: var(--pt-text-secondary) !important; }
.pt-text-muted { color: var(--pt-text-muted) !important; }
.pt-text-accent { color: var(--pt-accent) !important; }
.pt-text-danger { color: var(--pt-danger) !important; }
.pt-bg-surface { background: var(--pt-surface) !important; }
.pt-bg-light { background: var(--pt-bg) !important; }
.pt-border { border: 1px solid var(--pt-border) !important; }
.pt-rounded-lg { border-radius: var(--pt-radius-lg) !important; }
.pt-shadow { box-shadow: var(--pt-shadow) !important; }
.pt-gap-1 { gap: 4px; }
.pt-gap-2 { gap: 8px; }
.pt-gap-3 { gap: 16px; }

/* Hide old cop- classes that conflict */
.cop-card, .cop-shell, .cop-topbar, .cop-text-muted, .cop-link, .cop-btn-primary {
    all: unset;
}

/* Override Bootstrap defaults to match our theme */
.table { --bs-table-bg: transparent; }
.form-control:focus { box-shadow: 0 0 0 3px rgba(16,185,129,0.1); border-color: var(--pt-accent); }
.form-select:focus { box-shadow: 0 0 0 3px rgba(16,185,129,0.1); border-color: var(--pt-accent); }
.btn-check:focus + .btn, .btn:focus { box-shadow: none; }
.dropdown-menu { border: 1px solid var(--pt-border); box-shadow: var(--pt-shadow-lg); border-radius: var(--pt-radius); }
.dropdown-item { font-size: 0.875rem; padding: 8px 16px; }
.dropdown-item:hover { background: var(--pt-border-light); }
.pagination { --bs-pagination-focus-box-shadow: 0 0 0 3px rgba(16,185,129,0.1); }