/* ==========================================================================
   Binary Balance Solutions - Site Stylesheet
   ========================================================================== */

/* ---------- CSS Custom Properties ---------- */
:root {
    --primary-dark: #0a1628;
    --primary-accent: #00b4d8;
    --secondary-accent: #0077b6;
    --success: #00c853;
    --warning: #ffd600;
    --danger: #ff1744;
    --light-bg: #f4f6f9;
    --card-bg: #ffffff;
    --text-primary: #1a1a2e;
    --text-secondary: #6c757d;
    --primary-accent-rgb: 0, 180, 216;
    --primary-dark-rgb: 10, 22, 40;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.14);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
}

/* ---------- Global / Reset ---------- */
html {
    font-size: 16px;
    scroll-behavior: smooth;
    position: relative;
    min-height: 100%;
}

body {
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    color: var(--text-primary);
    background-color: var(--light-bg);
    line-height: 1.6;
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
    color: var(--text-secondary);
    line-height: 1.7;
}

a {
    color: var(--primary-accent);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--secondary-accent);
}

/* ---------- Navbar ---------- */
.navbar {
    background-color: var(--primary-dark) !important;
    padding: 0.75rem 0;
    transition: all var(--transition-base);
    border-bottom: none;
}

.navbar.scrolled {
    padding: 0.5rem 0;
    box-shadow: var(--shadow-md);
}

.navbar-brand {
    color: #ffffff !important;
    font-weight: 700;
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-brand img {
    height: 36px;
    width: auto;
}

.navbar-dark .navbar-nav .nav-link,
.navbar .navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.85) !important;
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: color var(--transition-fast);
    position: relative;
}

.navbar-dark .navbar-nav .nav-link:hover,
.navbar .navbar-nav .nav-link:hover,
.navbar-dark .navbar-nav .nav-link:focus,
.navbar .navbar-nav .nav-link:focus {
    color: var(--primary-accent) !important;
}

.navbar-dark .navbar-nav .nav-link.active,
.navbar .navbar-nav .nav-link.active {
    color: var(--primary-accent) !important;
}

.navbar-dark .navbar-nav .nav-link.active::after,
.navbar .navbar-nav .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 1rem;
    right: 1rem;
    height: 2px;
    background-color: var(--primary-accent);
    border-radius: 1px;
}

.navbar-toggler {
    border-color: rgba(255, 255, 255, 0.3) !important;
    padding: 0.4rem 0.6rem;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}

/* ---------- Hero Section ---------- */
.hero-section {
    background: linear-gradient(135deg, var(--primary-dark) 0%, #0d2137 50%, #0f2b4a 100%);
    color: #ffffff;
    padding: 6rem 0 5rem;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(var(--primary-accent-rgb), 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(var(--primary-accent-rgb), 0.06) 0%, transparent 50%);
    pointer-events: none;
}

.hero-section h1 {
    font-size: 3rem;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 1.25rem;
}

.hero-section .lead {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.8);
    max-width: 600px;
    margin-bottom: 2rem;
}

.hero-section .btn {
    padding: 0.75rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
}

/* ---------- Section Headings ---------- */
.section-heading {
    text-align: center;
    margin-bottom: 3rem;
}

.section-heading h2 {
    position: relative;
    display: inline-block;
    padding-bottom: 0.75rem;
    margin-bottom: 0.5rem;
}

.section-heading h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-accent), var(--secondary-accent));
    border-radius: 2px;
}

.section-heading p {
    max-width: 600px;
    margin: 0 auto;
}

/* ---------- Service Cards ---------- */
.service-card {
    background: var(--card-bg);
    border-radius: var(--radius-md);
    padding: 2rem;
    text-align: center;
    border: 1px solid rgba(0, 0, 0, 0.06);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    height: 100%;
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.service-card .icon-circle {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-accent), var(--secondary-accent));
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    color: #ffffff;
    font-size: 1.75rem;
}

.service-card h4 {
    margin-bottom: 0.75rem;
}

.service-card p {
    font-size: 0.95rem;
}

/* ---------- Cards (generic) ---------- */
.card {
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    overflow: hidden;
}

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

.card-header {
    background-color: var(--primary-dark);
    color: #ffffff;
    font-weight: 600;
    border-bottom: none;
    padding: 1rem 1.25rem;
}

/* ---------- Buttons ---------- */
.btn {
    font-weight: 600;
    border-radius: var(--radius-sm);
    padding: 0.5rem 1.25rem;
    transition: all var(--transition-fast);
    letter-spacing: 0.01em;
}

.btn-primary {
    background-color: var(--primary-accent) !important;
    border-color: var(--primary-accent) !important;
    color: #ffffff !important;
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: #009abb !important;
    border-color: #009abb !important;
    box-shadow: 0 4px 12px rgba(var(--primary-accent-rgb), 0.35);
    transform: translateY(-1px);
}

.btn-primary:active {
    background-color: #0088a8 !important;
    border-color: #0088a8 !important;
    transform: translateY(0);
}

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

.btn-outline-primary:hover,
.btn-outline-primary:focus {
    background-color: var(--primary-accent) !important;
    border-color: var(--primary-accent) !important;
    color: #ffffff !important;
    box-shadow: 0 4px 12px rgba(var(--primary-accent-rgb), 0.3);
    transform: translateY(-1px);
}

.btn-success {
    background-color: var(--success);
    border-color: var(--success);
}

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

.btn-warning {
    background-color: var(--warning);
    border-color: var(--warning);
    color: var(--text-primary);
}

/* ---------- Footer ---------- */
.footer, footer {
    background-color: var(--primary-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 3rem 0 1.5rem;
}

.footer h5, footer h5 {
    color: #ffffff;
    font-weight: 600;
    margin-bottom: 1.25rem;
}

.footer a, footer a {
    color: rgba(255, 255, 255, 0.65);
    text-decoration: none;
    transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.footer a:hover, footer a:hover {
    color: var(--primary-accent);
    padding-left: 4px;
}

.footer .footer-bottom, footer .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1.5rem;
    margin-top: 2rem;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.45);
}

.footer .social-link, footer .social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.7);
    margin-right: 0.5rem;
    transition: all var(--transition-fast);
}

.footer .social-link:hover, footer .social-link:hover {
    background: var(--primary-accent);
    color: #ffffff;
    padding-left: 0;
    transform: translateY(-2px);
}

/* ---------- Contact Form ---------- */
.contact-form .form-control,
.contact-form .form-select {
    border: 1px solid #dee2e6;
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    background-color: #ffffff;
}

.contact-form .form-control:focus,
.contact-form .form-select:focus {
    border-color: var(--primary-accent);
    box-shadow: 0 0 0 0.2rem rgba(var(--primary-accent-rgb), 0.15);
}

.contact-form label {
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.35rem;
    font-size: 0.9rem;
}

.contact-form textarea {
    min-height: 140px;
    resize: vertical;
}

/* ---------- Form Styling (global improvements) ---------- */
.form-control,
.form-select {
    border: 1px solid #dee2e6;
    border-radius: var(--radius-sm);
    padding: 0.6rem 0.875rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-accent);
    box-shadow: 0 0 0 0.2rem rgba(var(--primary-accent-rgb), 0.15);
}

.form-label {
    font-weight: 500;
    font-size: 0.9rem;
    margin-bottom: 0.35rem;
}

.form-floating > .form-control-plaintext::placeholder,
.form-floating > .form-control::placeholder {
    color: var(--bs-secondary-color);
    text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder,
.form-floating > .form-control:focus::placeholder {
    text-align: start;
}

.input-group-text {
    background-color: var(--light-bg);
    border-color: #dee2e6;
    color: var(--text-secondary);
}

.form-check-input:checked {
    background-color: var(--primary-accent);
    border-color: var(--primary-accent);
}

/* ---------- Stats Cards (Admin Dashboard) ---------- */
.stats-card {
    background: var(--card-bg);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    border: 1px solid rgba(0, 0, 0, 0.06);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    position: relative;
    overflow: hidden;
}

.stats-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.stats-card .stats-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #ffffff;
}

.stats-card .stats-icon.bg-teal {
    background: linear-gradient(135deg, var(--primary-accent), var(--secondary-accent));
}

.stats-card .stats-icon.bg-success {
    background: linear-gradient(135deg, var(--success), #00a844);
}

.stats-card .stats-icon.bg-warning {
    background: linear-gradient(135deg, var(--warning), #e6c200);
}

.stats-card .stats-icon.bg-danger {
    background: linear-gradient(135deg, var(--danger), #d50032);
}

.stats-card .stats-value {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.2;
}

.stats-card .stats-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* ---------- Tables ---------- */
.table {
    border-collapse: separate;
    border-spacing: 0;
}

.table thead th {
    background-color: var(--primary-dark);
    color: #ffffff;
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 0.875rem 1rem;
    border: none;
    white-space: nowrap;
}

.table thead th:first-child {
    border-top-left-radius: var(--radius-sm);
}

.table thead th:last-child {
    border-top-right-radius: var(--radius-sm);
}

.table tbody tr {
    transition: background-color var(--transition-fast);
}

.table tbody tr:hover {
    background-color: rgba(var(--primary-accent-rgb), 0.04);
}

.table tbody td {
    padding: 0.875rem 1rem;
    vertical-align: middle;
    border-bottom: 1px solid #f0f0f0;
    font-size: 0.925rem;
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(0, 0, 0, 0.015);
}

.table-striped tbody tr:nth-of-type(odd):hover {
    background-color: rgba(var(--primary-accent-rgb), 0.04);
}

/* ---------- Badges (Payment Statuses) ---------- */
.badge {
    font-weight: 600;
    font-size: 0.75rem;
    padding: 0.35em 0.75em;
    border-radius: 50px;
    letter-spacing: 0.02em;
}

.badge-paid,
.badge.bg-success {
    background-color: rgba(0, 200, 83, 0.12) !important;
    color: #00a844 !important;
}

.badge-pending,
.badge.bg-warning {
    background-color: rgba(255, 214, 0, 0.15) !important;
    color: #b89600 !important;
}

.badge-overdue,
.badge.bg-danger {
    background-color: rgba(255, 23, 68, 0.1) !important;
    color: var(--danger) !important;
}

.badge-draft,
.badge.bg-secondary {
    background-color: rgba(108, 117, 125, 0.12) !important;
    color: var(--text-secondary) !important;
}

.badge-partial,
.badge.bg-info {
    background-color: rgba(var(--primary-accent-rgb), 0.12) !important;
    color: var(--secondary-accent) !important;
}

/* ---------- Admin Sidebar ---------- */
.admin-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 260px;
    background: var(--primary-dark);
    color: #ffffff;
    z-index: 1040;
    overflow-y: auto;
    padding-top: 1rem;
    transition: transform var(--transition-base);
    box-shadow: 2px 0 12px rgba(0, 0, 0, 0.15);
}

.admin-sidebar .sidebar-brand {
    padding: 0.75rem 1.25rem 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    margin-bottom: 0.75rem;
}

.admin-sidebar .sidebar-brand img {
    height: 32px;
    width: auto;
}

.admin-sidebar .sidebar-nav {
    list-style: none;
    padding: 0;
    margin: 0;
}

.admin-sidebar .sidebar-nav .nav-section {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: rgba(255, 255, 255, 0.35);
    padding: 1rem 1.25rem 0.4rem;
    font-weight: 600;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 1.25rem;
    color: rgba(255, 255, 255, 0.65);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: 0;
    transition: all var(--transition-fast);
    border-left: 3px solid transparent;
}

.sidebar-link:hover {
    color: #ffffff;
    background-color: rgba(255, 255, 255, 0.06);
    border-left-color: rgba(var(--primary-accent-rgb), 0.5);
}

.sidebar-link.active {
    color: #ffffff;
    background-color: rgba(var(--primary-accent-rgb), 0.12);
    border-left-color: var(--primary-accent);
}

.sidebar-link .sidebar-icon {
    width: 20px;
    text-align: center;
    font-size: 1rem;
    flex-shrink: 0;
}

.admin-content {
    margin-left: 260px;
    padding: 2rem;
    min-height: 100vh;
    background-color: var(--light-bg);
}

/* ---------- Pagination ---------- */
.page-link {
    color: var(--primary-accent);
    border-color: #dee2e6;
}

.page-link:hover {
    color: var(--secondary-accent);
    background-color: rgba(var(--primary-accent-rgb), 0.06);
    border-color: var(--primary-accent);
}

.page-item.active .page-link {
    background-color: var(--primary-accent);
    border-color: var(--primary-accent);
    color: #ffffff;
}

/* ---------- Alerts ---------- */
.alert {
    border-radius: var(--radius-sm);
    border: none;
    font-size: 0.925rem;
}

/* ---------- Modal ---------- */
.modal-content {
    border: none;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
}

.modal-header {
    background-color: var(--primary-dark);
    color: #ffffff;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    padding: 1rem 1.25rem;
}

.modal-header .btn-close {
    filter: brightness(0) invert(1);
}

/* ---------- Utility Classes ---------- */
.bg-navy {
    background-color: var(--primary-dark) !important;
}

.bg-teal {
    background-color: var(--primary-accent) !important;
}

.text-teal {
    color: var(--primary-accent) !important;
}

.text-navy {
    color: var(--primary-dark) !important;
}

.section-padding {
    padding: 5rem 0;
}

.section-padding-sm {
    padding: 3rem 0;
}

/* ---------- Animations ---------- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.5s ease forwards;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

/* ---------- Copy Button ---------- */
.btn-copy {
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    font-size: 0.8rem;
    border-radius: var(--radius-sm);
}

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

/* ---------- Responsive Overrides ---------- */
@media (max-width: 991.98px) {
    .admin-sidebar {
        transform: translateX(-100%);
    }

    .admin-sidebar.show {
        transform: translateX(0);
    }

    .admin-content {
        margin-left: 0;
    }

    .hero-section {
        padding: 4rem 0 3rem;
    }

    .hero-section h1 {
        font-size: 2.25rem;
    }

    .section-padding {
        padding: 3rem 0;
    }
}

@media (max-width: 767.98px) {
    html {
        font-size: 14px;
    }

    .hero-section {
        padding: 3rem 0 2.5rem;
        text-align: center;
    }

    .hero-section h1 {
        font-size: 2rem;
    }

    .hero-section .lead {
        margin-left: auto;
        margin-right: auto;
    }

    h1 { font-size: 2rem; }
    h2 { font-size: 1.65rem; }
    h3 { font-size: 1.25rem; }

    .stats-card {
        margin-bottom: 1rem;
    }

    .table-responsive {
        font-size: 0.85rem;
    }

    .admin-content {
        padding: 1rem;
    }
}

@media (max-width: 575.98px) {
    .hero-section .btn {
        display: block;
        width: 100%;
        margin-bottom: 0.5rem;
    }

    .section-heading h2 {
        font-size: 1.5rem;
    }
}

/* ---------- Focus Styles ---------- */
.btn:focus,
.btn:active:focus,
.btn-link.nav-link:focus,
.form-control:focus,
.form-check-input:focus {
    box-shadow: 0 0 0 0.15rem rgba(var(--primary-accent-rgb), 0.3);
}

/* ---------- Scrollbar (Webkit) ---------- */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--light-bg);
}

::-webkit-scrollbar-thumb {
    background: #c1c9d4;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a0aab5;
}

/* ---------- Selection ---------- */
::selection {
    background-color: rgba(var(--primary-accent-rgb), 0.2);
    color: var(--text-primary);
}