/* ============================================================
   MyStart — Design System & CSS
   Light/dark theme via [data-theme] attribute on <html>
   ============================================================ */

/* ----- Google Fonts loaded in _Layout.cshtml ----- */

/* ---- CSS Custom Properties ---- */
:root,
[data-theme="dark"] {
    /* Surface hierarchy */
    --bg:           #0d1117;
    --bg-secondary: #161b22;
    --surface:      #1c2128;
    --surface-2:    #22272e;
    --surface-3:    #2d333b;

    /* Borders */
    --border:       rgba(255,255,255,0.08);
    --border-strong:rgba(255,255,255,0.16);

    /* Text */
    --text:         #f0f6fc;
    --text-muted:   #9ca3af;
    --text-subtle:  #6b7280;

    /* Accent — electric indigo/violet */
    --accent:       #7c5cfc;
    --accent-hover: #6b4ce6;
    --accent-light: rgba(124,92,252,0.15);
    --accent-glow:  rgba(124,92,252,0.35);

    /* Danger */
    --danger:       #f85149;
    --danger-hover: #da3633;
    --danger-light: rgba(248,81,73,0.12);

    /* Success */
    --success:      #3fb950;
    --success-light:rgba(63,185,80,0.12);

    /* Warning */
    --warning:      #d29922;

    /* Nav */
    --nav-bg:       rgba(13,17,23,0.85);
    --nav-border:   rgba(255,255,255,0.06);

    /* Card */
    --card-bg:      var(--surface);
    --card-border:  var(--border);
    --card-shadow:  0 1px 3px rgba(0,0,0,0.4), 0 4px 16px rgba(0,0,0,0.25);
    --card-hover-shadow: 0 4px 20px rgba(0,0,0,0.5), 0 0 0 1px var(--border-strong);

    /* Table */
    --table-stripe: rgba(255,255,255,0.025);
    --table-hover:  rgba(124,92,252,0.08);
    --table-header-bg: var(--surface-3);

    /* Input */
    --input-bg:     var(--surface-2);
    --input-border: var(--border-strong);
    --input-focus-border: var(--accent);
    --input-focus-ring:   var(--accent-glow);

    /* Scrollbar */
    --scrollbar-track: var(--surface);
    --scrollbar-thumb: var(--surface-3);

    /* Modal */
    --modal-bg:     var(--surface);
    --modal-backdrop: rgba(0,0,0,0.7);

    /* Bootstrap 5 variable overrides for dark mode */
    --bs-body-color:        var(--text);
    --bs-body-color-rgb:    240, 246, 252;
    --bs-body-bg:           var(--bg);
    --bs-body-bg-rgb:       13, 17, 23;
    --bs-emphasis-color:    #ffffff;
    --bs-emphasis-color-rgb:255, 255, 255;
    --bs-secondary-color:   var(--text-muted);
    --bs-secondary-color-rgb: 156, 163, 175;
    --bs-tertiary-color:    var(--text-subtle);
    --bs-link-color:        var(--accent);
    --bs-link-hover-color:  var(--accent-hover);
    --bs-border-color:      var(--border);
    --bs-card-bg:           var(--card-bg);
    --bs-card-color:        var(--text);
    --bs-card-border-color: var(--card-border);
}

[data-theme="light"] {
    --bg:           #f0f2f5;
    --bg-secondary: #e8eaed;
    --surface:      #ffffff;
    --surface-2:    #f6f8fa;
    --surface-3:    #eaeef2;

    --border:       rgba(0,0,0,0.08);
    --border-strong:rgba(0,0,0,0.18);

    --text:         #0f172a;
    --text-muted:   #64748b;
    --text-subtle:  #94a3b8;

    --accent:       #6147d0;
    --accent-hover: #5039b8;
    --accent-light: rgba(97,71,208,0.1);
    --accent-glow:  rgba(97,71,208,0.25);

    --danger:       #cf222e;
    --danger-hover: #a40e26;
    --danger-light: rgba(207,34,46,0.1);

    --success:      #1a7f37;
    --success-light:rgba(26,127,55,0.1);

    --warning:      #9a6700;

    --nav-bg:       rgba(255,255,255,0.9);
    --nav-border:   rgba(0,0,0,0.08);

    --card-bg:      #ffffff;
    --card-border:  rgba(0,0,0,0.08);
    --card-shadow:  0 1px 3px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.06);
    --card-hover-shadow: 0 4px 16px rgba(0,0,0,0.12), 0 0 0 1px rgba(0,0,0,0.12);

    --table-stripe: rgba(0,0,0,0.02);
    --table-hover:  rgba(97,71,208,0.06);
    --table-header-bg: var(--surface-3);

    --input-bg:     #ffffff;
    --input-border: rgba(0,0,0,0.2);
    --input-focus-border: var(--accent);
    --input-focus-ring:   rgba(97,71,208,0.2);

    --scrollbar-track: var(--surface-2);
    --scrollbar-thumb: var(--surface-3);

    --modal-bg:     #ffffff;
    --modal-backdrop: rgba(0,0,0,0.4);

    /* Bootstrap 5 variable overrides for light mode */
    --bs-body-color:        var(--text);
    --bs-body-color-rgb:    15, 23, 42;
    --bs-body-bg:           var(--bg);
    --bs-body-bg-rgb:       240, 242, 245;
    --bs-emphasis-color:    #000000;
    --bs-emphasis-color-rgb:0, 0, 0;
    --bs-secondary-color:   var(--text-muted);
    --bs-secondary-color-rgb: 100, 116, 139;
    --bs-tertiary-color:    var(--text-subtle);
    --bs-link-color:        var(--accent);
    --bs-link-hover-color:  var(--accent-hover);
    --bs-border-color:      var(--border);
    --bs-card-bg:           var(--card-bg);
    --bs-card-color:        var(--text);
    --bs-card-border-color: var(--card-border);
}

/* ---- Base Reset ---- */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    font-size: 15px;
    scroll-behavior: smooth;
}

@media (min-width: 768px) {
    html { font-size: 16px; }
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--bg);
    color: var(--text);
    padding-top: 3.5rem;
    padding-bottom: 3rem;
    min-height: 100vh;
    transition: background-color 0.2s ease, color 0.2s ease;
    line-height: 1.6;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.15s ease, opacity 0.15s ease;
}

a:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--scrollbar-track); }
::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-strong); }

/* ---- Navbar ---- */
.site-navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1030;
    background-color: var(--nav-bg) !important;
    border-bottom: 1px solid var(--nav-border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 0.4rem 0;
    transition: background-color 0.2s ease, border-color 0.2s ease;
}

.site-navbar .navbar-brand {
    font-weight: 700;
    font-size: 1.15rem;
    letter-spacing: -0.02em;
    color: var(--text) !important;
    background: linear-gradient(135deg, var(--accent) 0%, #a78bfa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.site-navbar .nav-link,
.site-navbar .btn-link {
    color: var(--text-muted) !important;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.375rem 0.625rem;
    border-radius: 6px;
    transition: color 0.15s ease, background-color 0.15s ease;
}

.site-navbar .nav-link:hover,
.site-navbar .nav-link:focus,
.site-navbar .btn-link:hover,
.site-navbar .btn-link:focus {
    color: var(--text) !important;
    background-color: var(--accent-light);
    text-decoration: none;
}

.site-navbar .navbar-toggler {
    border-color: var(--border-strong);
    color: var(--text-muted);
}

/* ---- Theme Toggle Button ---- */
.theme-toggle {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--border-strong);
    background: var(--surface-2);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 1rem;
    padding: 0;
    flex-shrink: 0;
}

.theme-toggle:hover {
    background: var(--accent-light);
    border-color: var(--accent);
    color: var(--accent);
    transform: rotate(15deg);
}

/* ---- Footer ---- */
.site-footer {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    z-index: 1029;
    background-color: var(--nav-bg);
    border-top: 1px solid var(--nav-border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: var(--text-muted);
    padding: 0.4rem 0;
    font-size: 0.8rem;
    transition: background-color 0.2s ease, border-color 0.2s ease;
}

.site-footer a { color: var(--text-muted); }
.site-footer a:hover { color: var(--text); }

/* ---- Page Root ---- */
#page-root {
    margin-top: 1.25rem;
    margin-bottom: 1.25rem;
}

/* ---- Headings ---- */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--text);
}

/* ---- Cards ---- */
.card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    box-shadow: var(--card-shadow);
    border-radius: 12px;
    transition: box-shadow 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
    color: var(--text);
}

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

.card-header {
    background-color: var(--surface-2);
    border-bottom: 1px solid var(--border);
    border-radius: 12px 12px 0 0 !important;
    padding: 0.75rem 1rem;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text);
}

.card-body {
    padding: 1.25rem;
}

/* ---- Tables ---- */
.table {
    color: var(--text);
    border-color: var(--border);
    --bs-table-color: var(--text);
    --bs-table-bg: transparent;
    --bs-table-border-color: var(--border);
    --bs-table-striped-bg: var(--table-stripe);
    --bs-table-hover-bg: var(--table-hover);
    --bs-table-striped-color: var(--text);
    --bs-table-hover-color: var(--text);
}

.table thead th {
    background-color: var(--table-header-bg);
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    border-bottom: 1px solid var(--border-strong);
    padding: 0.75rem 1rem;
}

.table td {
    padding: 0.75rem 1rem;
    vertical-align: middle;
    border-bottom: 1px solid var(--border);
}

.table-dark {
    --bs-table-bg: var(--table-header-bg);
    --bs-table-border-color: var(--border);
    --bs-table-color: var(--text-muted);
}

/* ---- Buttons ---- */
.btn {
    font-weight: 500;
    border-radius: 8px;
    font-size: 0.875rem;
    transition: all 0.15s ease;
    border: 1px solid transparent;
}

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

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--accent-hover);
    border-color: var(--accent-hover);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

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

.btn-outline-primary:hover {
    background-color: var(--accent-light);
    color: var(--accent);
    border-color: var(--accent);
}

.btn-outline-secondary {
    color: var(--text-muted);
    border-color: var(--border-strong);
    background: transparent;
}

.btn-outline-secondary:hover {
    background-color: var(--surface-3);
    color: var(--text);
    border-color: var(--border-strong);
}

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

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

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

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

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

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus,
.form-control:focus, .form-check-input:focus, .form-select:focus {
    box-shadow: 0 0 0 3px var(--input-focus-ring);
    outline: none;
}

/* ---- Form Controls ---- */
.form-control,
.form-select {
    background-color: var(--input-bg);
    border: 1px solid var(--input-border);
    color: var(--text);
    border-radius: 8px;
    font-size: 0.9rem;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, background-color 0.2s ease;
}

.form-control:focus,
.form-select:focus {
    background-color: var(--input-bg);
    border-color: var(--input-focus-border);
    color: var(--text);
    box-shadow: 0 0 0 3px var(--input-focus-ring);
}

.form-control::placeholder { color: var(--text-subtle); }

.form-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 0.4rem;
    letter-spacing: 0.01em;
}

.form-text {
    color: var(--text-subtle);
    font-size: 0.8rem;
}

.form-check-input {
    background-color: var(--input-bg);
    border-color: var(--input-border);
    border-radius: 4px;
}

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

/* Color input */
.form-control-color {
    width: 3.5rem;
    height: 2.25rem;
    padding: 0.2rem;
    border-radius: 8px;
}

/* ---- Alerts ---- */
.alert {
    border-radius: 10px;
    border: 1px solid transparent;
    font-size: 0.875rem;
}

.alert-danger {
    background-color: var(--danger-light);
    border-color: rgba(248,81,73,0.3);
    color: var(--danger);
}

.alert-info {
    background-color: var(--accent-light);
    border-color: rgba(124,92,252,0.2);
    color: var(--accent);
}

.alert-success {
    background-color: var(--success-light);
    border-color: rgba(63,185,80,0.2);
    color: var(--success);
}

/* ---- Badges ---- */
.badge {
    font-size: 0.7rem;
    font-weight: 600;
    border-radius: 5px;
    padding: 0.3em 0.6em;
    letter-spacing: 0.03em;
}

.badge.bg-secondary {
    background-color: var(--surface-3) !important;
    color: var(--text-muted) !important;
}

.badge.bg-info {
    background-color: var(--accent-light) !important;
    color: var(--accent) !important;
}

/* ---- Modals ---- */
.modal-content {
    background-color: var(--modal-bg);
    border: 1px solid var(--border-strong);
    border-radius: 14px;
    color: var(--text);
    box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

.modal-header {
    border-bottom: 1px solid var(--border);
    padding: 1rem 1.25rem 0.875rem;
}

.modal-footer {
    border-top: 1px solid var(--border);
}

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

.btn-close {
    filter: invert(0.6);
    opacity: 0.7;
}

[data-theme="dark"] .btn-close {
    filter: invert(0.8);
}

.modal-backdrop.show {
    opacity: 1;
    background-color: var(--modal-backdrop);
}

/* ---- Nav Tabs (in Modals) ---- */
.nav-tabs {
    border-bottom: 1px solid var(--border);
}

.nav-tabs .nav-link {
    color: var(--text-muted);
    border: none;
    border-bottom: 2px solid transparent;
    border-radius: 0;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.5rem 0.875rem;
    background: transparent;
    transition: color 0.15s ease, border-color 0.15s ease;
}

.nav-tabs .nav-link:hover {
    color: var(--text);
    border-bottom-color: var(--border-strong);
}

.nav-tabs .nav-link.active {
    color: var(--accent);
    background: transparent;
    border-bottom-color: var(--accent);
}

/* ---- List Group ---- */
.list-group-item {
    background-color: transparent;
    border-color: var(--border);
    color: var(--text);
    transition: background-color 0.15s ease;
}

.list-group-item:hover {
    background-color: var(--table-hover);
}

.list-group-item-action {
    color: var(--text);
}

.list-group-item a {
    color: var(--text);
}

/* Link titles inside card groups */
.link-item-title {
    color: var(--text) !important;
    font-size: 0.925rem;
    font-weight: 500;
    transition: color 0.15s ease;
}

.link-item-title:hover {
    color: var(--accent) !important;
}

/* ---- Utility overrides ---- */
.text-body,
a.text-body {
    color: var(--text) !important;
}

.text-body:hover,
a.text-body:hover {
    color: var(--accent) !important;
}

.text-muted {
    color: var(--text-muted) !important;
}

.text-secondary {
    color: var(--text-subtle) !important;
}

/* Search input on Page view */
#linkSearch {
    color: var(--text);
    background-color: var(--input-bg);
    border-color: var(--input-border);
}

#linkSearch::placeholder {
    color: var(--text-muted);
}

.border-top { border-top: 1px solid var(--border) !important; }
.border-bottom { border-bottom: 1px solid var(--border) !important; }

.bg-secondary { background-color: var(--surface-3) !important; }

hr {
    border-color: var(--border);
    opacity: 1;
}

/* ---- Floating form labels ---- */
.form-floating > .form-control-plaintext::placeholder,
.form-floating > .form-control::placeholder {
    color: var(--text-subtle);
    text-align: end;
}

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

.form-floating > label {
    color: var(--text-subtle);
}

/* ---- Page navigation (Prev/Next buttons) ---- */
.page-nav-bar {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.5rem 0;
    flex-wrap: wrap;
}

/* ---- Search input ---- */
#linkSearch {
    background-color: var(--input-bg);
    border-color: var(--input-border);
    color: var(--text);
    border-radius: 8px;
}

#linkSearch:focus {
    background-color: var(--input-bg);
    border-color: var(--accent);
    color: var(--text);
    box-shadow: 0 0 0 3px var(--input-focus-ring);
}

/* ---- Color swatch previews in Customisation list ---- */
.color-swatch {
    display: inline-block;
    width: 20px;
    height: 20px;
    border-radius: 5px;
    border: 1px solid var(--border-strong);
    vertical-align: middle;
}

/* ---- Responsive container ---- */
.container {
    max-width: 1280px;
}

/* ---- Welcome page hero ---- */
.hero-section {
    text-align: center;
    padding: 4rem 1rem 2rem;
}

.hero-section h1 {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--text) 0%, var(--text-muted) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
}

.hero-section p {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 560px;
    margin: 0 auto 2rem;
}

/* ---- Index page headers ---- */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    gap: 1rem;
    flex-wrap: wrap;
}

.page-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
}

/* ---- Edit form card ---- */
.form-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 1.75rem;
    max-width: 520px;
    box-shadow: var(--card-shadow);
}

/* ---- Action buttons within tables ---- */
.actions-cell {
    white-space: nowrap;
    text-align: right;
}

.actions-cell .btn + .btn {
    margin-left: 0.375rem;
}

/* ---- Edit mode active state ---- */
.edit-mode-active .edit-mode-btn {
    display: inline-flex !important;
}

/* ---- Transitions for theme change ---- */
body,
.card,
.card-header,
.site-navbar,
.site-footer,
.modal-content,
.form-control,
.form-select,
.table,
.alert,
.list-group-item {
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}