/* ============================================================================
   Site Diary App design system — implements the "SDA Wireframes" hand-off
   (Systech brand, Public Sans, NEC4 framing). Tokens first, then the shell
   (sidebar / topbar), then components. Coexists with Bootstrap: everything is
   prefixed `sda-` and legacy pages keep their Bootstrap styling inside the
   new shell.
   ========================================================================== */

:root {
    --sda-purple: #533278;
    --sda-purple-dark: #3C2457;
    --sda-purple-hover: #43296A;
    --sda-purple-soft: #EFE9F6;
    --sda-purple-tint: #F5F1FA;
    --sda-ink: #241B36;
    --sda-text: #3A3350;
    --sda-muted: #7B7390;
    --sda-muted-2: #8B8399;
    --sda-muted-3: #9A92AB;
    --sda-bg: #F6F5F8;
    --sda-card: #ffffff;
    --sda-border: #E8E4F0;
    --sda-border-2: #E5E0EC;
    --sda-row-border: #F5F3F8;
    --sda-head-bg: #FAF9FC;
    --sda-divider: #F0EDF5;
    --sda-amber: #B45309;
    --sda-amber-bg: #FDF0E3;
    --sda-amber-border: #F0D9BC;
    --sda-amber-hl: #E8A33D;
    --sda-amber-mid: #A16207;
    --sda-amber-mid-bg: #FEF6DE;
    --sda-amber-mid-border: #EBD9A0;
    --sda-amber-bar: #D9A514;
    --sda-red: #B91C1C;
    --sda-red-bg: #FDECEC;
    --sda-red-border: #F2C8C8;
    --sda-red-dot: #C2410C;
    --sda-green: #15803D;
    --sda-green-bg: #E7F6EC;
    --sda-excel: #1D6F42;
    --sda-excel-border: #BFDCCB;
    --sda-excel-bg: #F2FAF5;
    --sda-blue: #1D4ED8;
    --sda-blue-bg: #EAF0FE;
    --sda-blue-border: #C9D9F8;
    --sda-grey-badge: #6E6880;
    --sda-grey-badge-bg: #F1F0F4;
    --sda-grey-badge-border: #E2E0E8;
    --sda-spark: #F5C563;
    --sda-ai-grad: linear-gradient(120deg, #FBF8FF 0%, #FFF9EF 100%);
    --sda-ai-border: #E7D9B8;
    --sda-shadow-card: 0 1px 2px rgba(40, 20, 80, .05);
    --sda-shadow-panel: 0 2px 8px rgba(40, 20, 80, .09);
    --sda-shadow-drop: 0 16px 40px rgba(40, 20, 80, .22);
    --sda-shadow-btn: 0 1px 3px rgba(60, 36, 87, .3);
    --sda-skel: #E7E3EE;
    --sda-font: 'Public Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    --sda-sidebar-w: 248px;
    --sda-sidebar-w-collapsed: 68px;
}

/* Minimal dark mapping so the existing theme toggle doesn't produce a broken page.
   The wireframes specify light only; dark just re-tints surfaces via the tokens. */
[data-bs-theme="dark"] {
    --sda-ink: #EFEDF3;
    --sda-text: #D6D2E0;
    --sda-muted: #A79FBA;
    --sda-muted-2: #968DA9;
    --sda-muted-3: #7E7592;
    --sda-bg: #17121F;
    --sda-card: #211A2E;
    --sda-border: #342A47;
    --sda-border-2: #3A2F4F;
    --sda-row-border: #2A2239;
    --sda-head-bg: #261E36;
    --sda-divider: #2E2540;
    --sda-purple-soft: #322349;
    --sda-purple-tint: #2C2141;
    --sda-grey-badge: #A79FBA;
    --sda-grey-badge-bg: #2A2239;
    --sda-grey-badge-border: #3A2F4F;
    --sda-amber-bg: #33230E;
    --sda-amber-border: #4E3717;
    --sda-amber-mid-bg: #2F2710;
    --sda-amber-mid-border: #4A3D1B;
    --sda-red-bg: #351515;
    --sda-red-border: #532222;
    --sda-green-bg: #10281A;
    --sda-blue-bg: #14203D;
    --sda-blue-border: #22345E;
    --sda-excel-bg: #12271B;
    --sda-excel-border: #1F4630;
    --sda-ai-grad: linear-gradient(120deg, #241C33 0%, #2B2313 100%);
    --sda-ai-border: #4E4224;
    --sda-skel: #322949;
}

@keyframes sdaShimmer {
    0% { opacity: .45; }
    50% { opacity: 1; }
    100% { opacity: .45; }
}

/* ---------------------------------------------------------------- shell -- */

.sda-shell {
    display: grid;
    grid-template-columns: var(--sda-sidebar-w) 1fr;
    min-height: 100vh;
    background: var(--sda-bg);
    font-family: var(--sda-font);
}

.sda-shell.collapsed { grid-template-columns: var(--sda-sidebar-w-collapsed) 1fr; }

.sda-main { display: flex; flex-direction: column; min-width: 0; }

.sda-content { flex: 1; padding: 26px 32px; }

/* --------------------------------------------------------------- sidebar -- */

.sda-sidebar {
    display: flex;
    flex-direction: column;
    background: linear-gradient(180deg, var(--sda-purple) 0%, var(--sda-purple-dark) 78%);
    position: sticky;
    top: 0;
    height: 100vh;
    overflow: hidden;
    z-index: 20;
}

.sda-logo-row {
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 16px 18px;
    border-bottom: 1px solid rgba(255, 255, 255, .12);
    flex: none;
}

.collapsed .sda-logo-row { padding: 16px 0; justify-content: center; }

.sda-logo-mark {
    width: 34px; height: 34px;
    border-radius: 8px;
    background: rgba(255, 255, 255, .16);
    display: flex; align-items: center; justify-content: center;
    flex: none;
    font: 800 16px var(--sda-font);
    color: #fff;
}

.sda-logo-name { font: 800 14px/1.15 var(--sda-font); color: #fff; letter-spacing: .14em; }
.sda-logo-sub { font: 600 10px/1.4 var(--sda-font); color: rgba(255, 255, 255, .55); letter-spacing: .18em; }

.sda-nav { display: flex; flex-direction: column; gap: 3px; padding: 14px 10px; flex: 1; overflow-y: auto; }

.sda-nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    height: 40px;
    padding: 0 12px;
    border-radius: 8px;
    cursor: pointer;
    color: rgba(255, 255, 255, .72);
    font: 500 13.5px var(--sda-font);
    text-decoration: none;
    white-space: nowrap;
}

.sda-nav-item:hover { background: rgba(255, 255, 255, .09); color: rgba(255, 255, 255, .9); }

.sda-nav-item.active,
.sda-nav-item:is(.active):hover {
    color: #fff;
    font-weight: 600;
    background: rgba(255, 255, 255, .15);
    box-shadow: inset 3px 0 0 rgba(255, 255, 255, .85);
}

.sda-nav-item svg { flex: none; }

.sda-nav-label { flex: 1; overflow: hidden; text-overflow: ellipsis; }

.sda-nav-badge {
    flex: none;
    min-width: 18px; height: 18px;
    padding: 0 5px;
    border-radius: 9px;
    background: var(--sda-amber-hl);
    color: #2E1B45;
    font: 700 10.5px var(--sda-font);
    display: flex; align-items: center; justify-content: center;
}

.collapsed .sda-nav-item {
    padding: 0;
    justify-content: center;
    width: 44px;
    margin: 0 auto;
}

.collapsed .sda-nav-item.active { box-shadow: none; }
.collapsed .sda-nav-label, .collapsed .sda-nav-badge, .collapsed .sda-logo-text, .collapsed .sda-foot-text { display: none; }

.sda-nav-section {
    font: 700 9.5px var(--sda-font);
    color: rgba(255, 255, 255, .4);
    letter-spacing: .14em;
    padding: 14px 12px 4px;
}

.collapsed .sda-nav-section { padding: 10px 0 2px; text-align: center; overflow: hidden; height: 20px; }

.sda-side-foot {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 16px;
    border-top: 1px solid rgba(255, 255, 255, .12);
    flex: none;
}

.collapsed .sda-side-foot { flex-direction: column; padding: 14px 0; justify-content: center; }

.sda-avatar {
    width: 32px; height: 32px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .22);
    display: flex; align-items: center; justify-content: center;
    flex: none;
    font: 700 11.5px var(--sda-font);
    color: #fff;
}

.sda-foot-name { font: 600 12.5px/1.3 var(--sda-font); color: #fff; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sda-foot-role { font: 500 10.5px/1.3 var(--sda-font); color: rgba(255, 255, 255, .55); }

.sda-collapse-btn {
    width: 26px; height: 26px;
    border: none;
    border-radius: 6px;
    display: flex; align-items: center; justify-content: center;
    color: rgba(255, 255, 255, .6);
    background: transparent;
    cursor: pointer;
    flex: none;
}

.sda-collapse-btn:hover { background: rgba(255, 255, 255, .12); }

/* ---------------------------------------------------------------- topbar -- */

.sda-topbar {
    height: 60px;
    box-sizing: border-box;
    background: var(--sda-card);
    border-bottom: 1px solid var(--sda-border);
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 15;
}

.sda-hamburger { display: none; }

.sda-project-picker {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 6px 12px 6px 10px;
    border: 1px solid var(--sda-border-2);
    border-radius: 9px;
    background: var(--sda-head-bg);
    cursor: pointer;
    position: relative;
}

.sda-project-picker:hover { border-color: #C9BBDD; }

.sda-project-icon {
    width: 28px; height: 28px;
    border-radius: 6px;
    background: var(--sda-purple-soft);
    display: flex; align-items: center; justify-content: center;
    flex: none;
}

.sda-project-kicker { font: 700 8.5px/1.3 var(--sda-font); color: var(--sda-muted-3); letter-spacing: .14em; }
.sda-project-name { font: 600 13px/1.25 var(--sda-font); color: var(--sda-ink); }

.sda-icon-btn {
    position: relative;
    width: 36px; height: 36px;
    border: none;
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    color: #5B5470;
    background: transparent;
    cursor: pointer;
}

[data-bs-theme="dark"] .sda-icon-btn { color: var(--sda-muted); }
.sda-icon-btn:hover { background: #F3F0F8; }
[data-bs-theme="dark"] .sda-icon-btn:hover { background: var(--sda-purple-tint); }
.sda-icon-btn.active { color: var(--sda-purple); background: var(--sda-purple-soft); }

.sda-unread-pip {
    position: absolute;
    top: 2px; right: 2px;
    min-width: 16px; height: 16px;
    padding: 0 4px;
    border-radius: 8px;
    background: var(--sda-red-dot);
    color: #fff;
    font: 700 9.5px var(--sda-font);
    display: flex; align-items: center; justify-content: center;
    border: 2px solid var(--sda-card);
    box-sizing: content-box;
}

.sda-topbar-divider { width: 1px; height: 24px; background: var(--sda-border); }

.sda-user-chip {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    padding: 4px 6px;
    border-radius: 9px;
}

.sda-user-chip:hover { background: #F3F0F8; }
[data-bs-theme="dark"] .sda-user-chip:hover { background: var(--sda-purple-tint); }

.sda-user-chip .sda-avatar { background: var(--sda-purple); }

.sda-user-name { font: 600 12.5px/1.25 var(--sda-font); color: var(--sda-ink); }
.sda-user-role { font: 500 10.5px/1.25 var(--sda-font); color: var(--sda-muted-2); }

/* dropdown menus hanging off the topbar (project picker + notifications) */
.sda-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: 372px;
    max-height: 480px;
    overflow-y: auto;
    background: var(--sda-card);
    border: 1px solid var(--sda-border);
    border-radius: 12px;
    box-shadow: var(--sda-shadow-drop);
    z-index: 50;
}

.sda-dropdown.left { left: 0; right: auto; }

.sda-dropdown-head {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 14px 18px;
    border-bottom: 1px solid var(--sda-divider);
    font: 700 13.5px var(--sda-font);
    color: var(--sda-ink);
}

.sda-notif-row {
    display: flex;
    gap: 12px;
    padding: 13px 18px;
    border-bottom: 1px solid var(--sda-row-border);
    cursor: pointer;
    text-align: left;
    width: 100%;
    background: transparent;
    border-left: none; border-right: none; border-top: none;
}

.sda-notif-row.unread-ai { background: #FFFBF4; }
[data-bs-theme="dark"] .sda-notif-row.unread-ai { background: #2B2313; }

.sda-notif-icon {
    width: 28px; height: 28px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    flex: none;
}

.sda-notif-title { font: 600 12.5px/1.45 var(--sda-font); color: var(--sda-ink); }
.sda-notif-meta { font: 500 11px/1.5 var(--sda-font); color: var(--sda-muted-2); }

.sda-notif-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--sda-red-dot); flex: none; margin-top: 5px; }

.sda-dropdown-foot {
    padding: 12px 18px;
    font: 600 12px var(--sda-font);
    color: var(--sda-purple);
    cursor: pointer;
    background: var(--sda-head-bg);
    display: block;
    width: 100%;
    text-align: left;
    border: none;
}

.sda-menu-item {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 10px 16px;
    border: none;
    background: transparent;
    text-align: left;
    font: 500 13px var(--sda-font);
    color: var(--sda-ink);
    cursor: pointer;
}

.sda-menu-item:hover, .sda-menu-item.selected { background: var(--sda-purple-tint); }
.sda-menu-item .sub { font: 500 11px var(--sda-font); color: var(--sda-muted-2); }

/* ------------------------------------------------------------ typography -- */

.sda-page { font-family: var(--sda-font); color: var(--sda-text); display: flex; flex-direction: column; gap: 16px; }

.sda-h1 { font: 700 22px/1.2 var(--sda-font); color: var(--sda-ink); margin: 0; }
.sda-h2 { font: 700 20px/1.2 var(--sda-font); color: var(--sda-ink); margin: 0; }
.sda-sub { font: 500 12.5px/1.5 var(--sda-font); color: var(--sda-muted); margin-top: 3px; }
.sda-card-title { font: 700 14px var(--sda-font); color: var(--sda-ink); }
.sda-kicker { font: 700 10.5px var(--sda-font); color: var(--sda-muted-2); letter-spacing: .08em; }
.sda-small { font: 500 11.5px/1.5 var(--sda-font); color: var(--sda-muted-2); }
.sda-link { font: 600 12px var(--sda-font); color: var(--sda-purple); cursor: pointer; text-decoration: none; background: none; border: none; padding: 0; }
.sda-link:hover { color: var(--sda-purple-hover); text-decoration: none; }

.sda-breadcrumb { font: 500 12px var(--sda-font); color: var(--sda-muted-2); }
.sda-breadcrumb .sep { color: #C4BDD2; margin: 0 4px; }
.sda-breadcrumb .current { color: var(--sda-ink); font-weight: 600; }
.sda-breadcrumb a { color: var(--sda-muted-2); text-decoration: none; }
.sda-breadcrumb a:hover { color: var(--sda-purple); }

/* ----------------------------------------------------------------- cards -- */

.sda-card-box {
    background: var(--sda-card);
    border: 1px solid var(--sda-border);
    border-radius: 12px;
    box-shadow: var(--sda-shadow-card);
    padding: 20px 22px;
}

.sda-card-head {
    display: flex;
    align-items: center;
    gap: 10px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--sda-divider);
    margin-bottom: 4px;
}

.sda-stat {
    background: var(--sda-card);
    border: 1px solid var(--sda-border);
    border-radius: 12px;
    box-shadow: var(--sda-shadow-card);
    padding: 18px 20px;
}

.sda-stat-top { display: flex; align-items: center; justify-content: space-between; }
.sda-stat-icon { width: 30px; height: 30px; border-radius: 8px; display: flex; align-items: center; justify-content: center; }
.sda-stat-value { font: 800 30px/1.1 var(--sda-font); color: var(--sda-ink); margin-top: 10px; }
.sda-stat-sub { font: 500 12px/1.5 var(--sda-font); color: var(--sda-muted); margin-top: 4px; }

/* --------------------------------------------------------------- buttons -- */

.sda-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: 9px;
    padding: 10px 18px;
    font: 600 13px var(--sda-font);
    cursor: pointer;
    border: 1px solid transparent;
    text-decoration: none;
    white-space: nowrap;
}

.sda-btn:disabled { opacity: .55; cursor: default; }

.sda-btn-primary { background: var(--sda-purple); color: #fff; border-color: var(--sda-purple); box-shadow: var(--sda-shadow-btn); }
.sda-btn-primary:hover:not(:disabled) { background: var(--sda-purple-hover); color: #fff; }

.sda-btn-outline { background: var(--sda-card); color: var(--sda-purple); border-color: #D8CFE6; }
.sda-btn-outline:hover:not(:disabled) { background: var(--sda-purple-tint); }
[data-bs-theme="dark"] .sda-btn-outline { border-color: #4A3B63; }

.sda-btn-ghost { background: transparent; color: var(--sda-muted-2); border-color: transparent; }
.sda-btn-ghost:hover:not(:disabled) { background: rgba(0, 0, 0, .05); }
[data-bs-theme="dark"] .sda-btn-ghost:hover:not(:disabled) { background: rgba(255, 255, 255, .07); }

.sda-btn-quiet { background: var(--sda-card); color: var(--sda-muted-2); border-color: var(--sda-border-2); }
.sda-btn-quiet:hover:not(:disabled) { background: var(--sda-head-bg); }

.sda-btn-excel { background: var(--sda-card); color: var(--sda-excel); border-color: var(--sda-excel-border); }
.sda-btn-excel:hover:not(:disabled) { background: var(--sda-excel-bg); }

.sda-btn-sm { padding: 8px 14px; font-size: 12px; border-radius: 8px; }

/* ---------------------------------------------------------------- inputs -- */

.sda-input, .sda-select {
    border: 1px solid var(--sda-border-2);
    border-radius: 8px;
    padding: 9px 12px;
    font: 600 13px var(--sda-font);
    color: var(--sda-ink);
    background: var(--sda-card);
    width: 100%;
    box-sizing: border-box;
}

.sda-input::placeholder { color: var(--sda-muted-3); font-weight: 500; }
.sda-input:focus, .sda-select:focus { outline: none; border-color: var(--sda-purple); box-shadow: 0 0 0 3px rgba(83, 50, 120, .12); }

.sda-field-label { font: 600 11px var(--sda-font); color: var(--sda-muted-2); margin-bottom: 5px; display: block; }

.sda-textarea {
    border: 1px solid var(--sda-border-2);
    border-radius: 10px;
    padding: 14px 16px;
    font: 400 13px/1.7 var(--sda-font);
    color: var(--sda-text);
    background: var(--sda-card);
    width: 100%;
    box-sizing: border-box;
    min-height: 96px;
    resize: vertical;
}

.sda-textarea:focus { outline: none; border-color: var(--sda-purple); box-shadow: 0 0 0 3px rgba(83, 50, 120, .12); }

/* Per-field inline validation — no existing page shows per-field messages (they use one
   shared error banner instead), so this is new. */
.sda-input.invalid, .sda-select.invalid, .sda-textarea.invalid { border-color: var(--sda-red); }
.sda-input.invalid:focus, .sda-select.invalid:focus, .sda-textarea.invalid:focus { box-shadow: 0 0 0 3px rgba(185, 28, 28, .12); }
.sda-field-error { font: 600 11.5px var(--sda-font); color: var(--sda-red); margin-top: 5px; display: block; }

/* ------------------------------------------------------- chips & badges -- */

.sda-filter-chip {
    font: 600 12px var(--sda-font);
    color: #5B5470;
    background: var(--sda-card);
    border: 1px solid var(--sda-border-2);
    padding: 7px 13px;
    border-radius: 20px;
    cursor: pointer;
    white-space: nowrap;
}

[data-bs-theme="dark"] .sda-filter-chip { color: var(--sda-text); }
.sda-filter-chip:hover { border-color: #C9BBDD; }
.sda-filter-chip.active { color: #fff; background: var(--sda-purple); border-color: var(--sda-purple); }

.sda-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font: 700 10.5px var(--sda-font);
    padding: 3px 9px;
    border-radius: 6px;
    border: 1px solid transparent;
    white-space: nowrap;
}

.sda-badge-new { color: var(--sda-amber); background: var(--sda-amber-bg); border-color: var(--sda-amber-border); }
.sda-badge-review { color: var(--sda-blue); background: var(--sda-blue-bg); border-color: var(--sda-blue-border); }
.sda-badge-escalated { color: var(--sda-red); background: var(--sda-red-bg); border-color: var(--sda-red-border); }
.sda-badge-dismissed, .sda-badge-draft { color: var(--sda-grey-badge); background: var(--sda-grey-badge-bg); border-color: var(--sda-grey-badge-border); }
.sda-badge-submitted, .sda-badge-resolved { color: var(--sda-green); background: var(--sda-green-bg); border-color: #BFDCCB; }
.sda-badge-high { color: #fff; background: var(--sda-amber); border-color: var(--sda-amber); padding: 4px 9px; font-size: 11px; }
.sda-badge-medium { color: var(--sda-amber-mid); background: var(--sda-amber-mid-bg); border-color: var(--sda-amber-mid-border); padding: 3px 9px; font-size: 11px; }

.sda-ref { font: 700 12px ui-monospace, Menlo, Consolas, monospace; color: var(--sda-purple); }
[data-bs-theme="dark"] .sda-ref { color: #B79BDE; }

/* ----------------------------------------------------------------- table -- */

.sda-table { background: var(--sda-card); border: 1px solid var(--sda-border); border-radius: 12px; box-shadow: var(--sda-shadow-card); overflow: hidden; display: flex; flex-direction: column; }

.sda-tr {
    display: grid;
    gap: 12px;
    padding: 14px 20px;
    align-items: center;
    border-bottom: 1px solid var(--sda-row-border);
    cursor: pointer;
    color: var(--sda-text);
}

.sda-tr:hover { background: var(--sda-head-bg); }

.sda-tr.head {
    padding: 12px 20px;
    background: var(--sda-head-bg);
    border-bottom: 1px solid #EEEAF4;
    font: 700 10.5px var(--sda-font);
    color: var(--sda-muted-2);
    letter-spacing: .08em;
    cursor: default;
}

[data-bs-theme="dark"] .sda-tr.head { border-bottom-color: var(--sda-border); }

.sda-tr.selected { background: var(--sda-purple-tint); box-shadow: inset 3px 0 0 var(--sda-purple); }

.sda-cell-title { font: 600 12.5px var(--sda-font); color: var(--sda-ink); display: block; }
.sda-cell-sub { font: 500 11px var(--sda-font); color: var(--sda-muted-2); }
.sda-cell { font: 500 12px var(--sda-font); color: #5B5470; }
[data-bs-theme="dark"] .sda-cell { color: var(--sda-text); }

/* confidence bar */
.sda-conf { display: flex; align-items: center; gap: 8px; }
.sda-conf-track { flex: 1; height: 6px; border-radius: 3px; background: var(--sda-divider); overflow: hidden; display: block; }
.sda-conf-fill { display: block; height: 100%; border-radius: 3px; }
.sda-conf-label { font: 700 11.5px var(--sda-font); }

/* ------------------------------------------------------------- AI panel -- */

.sda-ai-panel {
    background: var(--sda-ai-grad);
    border: 1px solid var(--sda-ai-border);
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(180, 120, 30, .08);
    padding: 20px 22px;
}

.sda-spark-chip {
    width: 28px; height: 28px;
    border-radius: 8px;
    background: var(--sda-purple);
    display: flex; align-items: center; justify-content: center;
    flex: none;
}

.sda-flag-card {
    background: var(--sda-card);
    border: 1px solid #EEE4CC;
    border-radius: 10px;
    padding: 16px 18px;
}

[data-bs-theme="dark"] .sda-flag-card { border-color: var(--sda-ai-border); }

.sda-hl {
    background: var(--sda-amber-bg);
    border-bottom: 2px solid var(--sda-amber-hl);
    padding: 1px 2px;
}

.sda-excerpt {
    border-left: 3px solid var(--sda-purple);
    background: var(--sda-head-bg);
    border-radius: 0 8px 8px 0;
    padding: 12px 14px;
    font: 400 12.5px/1.65 var(--sda-font);
    color: var(--sda-text);
}

.sda-clause {
    border: 1px solid var(--sda-border-2);
    border-radius: 8px;
    padding: 9px 12px;
    font: 500 12px/1.5 var(--sda-font);
    color: var(--sda-text);
}

.sda-clause b { font-weight: 700; color: var(--sda-purple); }
[data-bs-theme="dark"] .sda-clause b { color: #B79BDE; }

/* --------------------------------------------------------- weather chips -- */

.sda-weather-chips { display: flex; gap: 10px; }

.sda-weather-chip {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 7px;
    border: 1px solid var(--sda-border-2);
    border-radius: 10px;
    padding: 13px 8px;
    background: var(--sda-card);
    cursor: pointer;
    color: var(--sda-muted-2);
    font: 600 11.5px var(--sda-font);
}

.sda-weather-chip:hover { border-color: #C9BBDD; }

.sda-weather-chip.selected {
    border: 2px solid var(--sda-purple);
    padding: 12px 7px;
    background: var(--sda-purple-tint);
    color: var(--sda-purple);
    font-weight: 700;
}

[data-bs-theme="dark"] .sda-weather-chip.selected { color: #B79BDE; }

/* ------------------------------------------------------------ photo grid -- */

.sda-photo-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }

.sda-photo { border-radius: 10px; overflow: hidden; border: 1px solid var(--sda-border-2); background: var(--sda-card); }
.sda-photo img { width: 100%; height: 104px; object-fit: cover; display: block; }
.sda-photo-caption { padding: 7px 10px; font: 500 10.5px var(--sda-font); color: var(--sda-muted); background: var(--sda-card); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.sda-photo-add {
    border: 1.5px dashed #C9BBDD;
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: var(--sda-head-bg);
    cursor: pointer;
    min-height: 104px;
    font: 600 11px/1.4 var(--sda-font);
    color: var(--sda-purple);
    text-align: center;
    position: relative;
}

.sda-photo-add:hover { background: var(--sda-purple-tint); }
.sda-photo-add input[type=file] { position: absolute; inset: 0; opacity: 0; cursor: pointer; }

/* ------------------------------------------------------ empty & loading -- */

.sda-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    background: var(--sda-card);
    border: 1px solid var(--sda-border);
    border-radius: 12px;
    padding: 56px 24px;
    text-align: center;
}

.sda-empty-icon {
    width: 56px; height: 56px;
    border-radius: 50%;
    background: #F1EDF7;
    display: flex; align-items: center; justify-content: center;
}

[data-bs-theme="dark"] .sda-empty-icon { background: var(--sda-purple-tint); }

.sda-empty-title { font: 700 15px var(--sda-font); color: var(--sda-ink); }
.sda-empty-text { font: 400 12.5px/1.6 var(--sda-font); color: var(--sda-muted); max-width: 340px; }

.sda-skel { border-radius: 5px; background: var(--sda-skel); animation: sdaShimmer 1.4s ease-in-out infinite; }

/* ------------------------------------------------------------- misc bits -- */

.sda-dot { width: 8px; height: 8px; border-radius: 50%; flex: none; }

.sda-alert-error {
    background: var(--sda-red-bg);
    border: 1px solid var(--sda-red-border);
    color: var(--sda-red);
    border-radius: 10px;
    padding: 10px 14px;
    font: 500 12.5px var(--sda-font);
}

.sda-alert-ok {
    background: var(--sda-green-bg);
    border: 1px solid #BFDCCB;
    color: var(--sda-green);
    border-radius: 10px;
    padding: 10px 14px;
    font: 500 12.5px var(--sda-font);
}

.sda-activity-row { display: flex; gap: 14px; align-items: flex-start; padding: 13px 0; border-bottom: 1px solid var(--sda-row-border); }
.sda-activity-row:last-child { border-bottom: none; }
.sda-activity-row.ai { background: linear-gradient(90deg, #FFFAF2, var(--sda-card)); margin: 0 -8px; padding-left: 8px; padding-right: 8px; border-radius: 8px; }
[data-bs-theme="dark"] .sda-activity-row.ai { background: linear-gradient(90deg, #2B2313, var(--sda-card)); }

.sda-row-icon { width: 26px; height: 26px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex: none; margin-top: 1px; }

/* legacy Bootstrap pages inside the new shell: normalise their heading colour */
.sda-content h1, .sda-content h2, .sda-content h3 { color: var(--sda-purple); }
[data-bs-theme="dark"] .sda-content h1, [data-bs-theme="dark"] .sda-content h2, [data-bs-theme="dark"] .sda-content h3 { color: var(--systech-turquoise); }

/* ------------------------------------------------------- settings page -- */

.sda-quicklinks {
    display: flex; flex-wrap: wrap;
    font: 700 12.5px var(--sda-font); color: var(--sda-purple);
    border-top: 1px solid var(--sda-divider); border-bottom: 1px solid var(--sda-divider);
    padding: 11px 0;
}
.sda-quicklinks a { color: var(--sda-purple); text-decoration: none; padding: 0 13px; border-right: 1px solid var(--sda-border); }
.sda-quicklinks a:first-child { padding-left: 0; }
.sda-quicklinks a:last-child { border-right: none; }
.sda-quicklinks a:hover { color: var(--sda-purple-hover); }

.sda-tag-readonly {
    display: inline-flex; align-items: center; gap: 4px;
    font: 700 10px var(--sda-font); letter-spacing: .03em; text-transform: uppercase;
    color: var(--sda-muted-2); background: var(--sda-head-bg); border: 1px solid var(--sda-border);
    padding: 2px 8px 2px 6px; border-radius: 20px;
}
.sda-tag-readonly svg { width: 10px; height: 10px; }

.sda-segmented {
    display: inline-flex; width: 100%;
    border: 1px solid var(--sda-border-2); border-radius: 9px; padding: 3px;
    background: var(--sda-head-bg);
}
.sda-segmented .seg {
    flex: 1; text-align: center; padding: 8px 10px;
    font: 700 12.5px var(--sda-font); color: var(--sda-muted);
    border-radius: 7px; display: flex; align-items: center; justify-content: center; gap: 6px;
    cursor: pointer; border: none; background: transparent;
}
.sda-segmented .seg.active { background: var(--sda-purple); color: #fff; box-shadow: var(--sda-shadow-btn); }
.sda-segmented .seg svg { width: 13px; height: 13px; }

.sda-toggle {
    width: 40px; height: 23px; border-radius: 20px; position: relative; flex: none;
    background: var(--sda-border-2); border: none; cursor: pointer; padding: 0;
}
.sda-toggle::after {
    content: ""; position: absolute; top: 3px; left: 3px; width: 17px; height: 17px;
    border-radius: 50%; background: #fff; box-shadow: 0 1px 2px rgba(0,0,0,.25); transition: left .12s ease-out;
}
.sda-toggle.on { background: var(--sda-purple); }
.sda-toggle.on::after { left: 20px; }

.sda-settings-row { display: flex; align-items: center; gap: 16px; padding: 15px 2px; }
.sda-settings-row + .sda-settings-row { border-top: 1px solid var(--sda-row-border); }

.sda-radio {
    width: 18px; height: 18px; border-radius: 50%; border: 2px solid var(--sda-border-2);
    flex: none; position: relative; background: none; padding: 0; cursor: pointer;
}
.sda-radio.on { border-color: var(--sda-purple); }
.sda-radio.on::after { content: ""; position: absolute; inset: 3px; border-radius: 50%; background: var(--sda-purple); }

.sda-access-card { border-radius: 12px; padding: 20px 22px; border: 1px solid var(--sda-border); }
.sda-access-card.can { background: linear-gradient(180deg, var(--sda-green-bg), var(--sda-card) 45%); border-color: #BFDCCB; }
.sda-access-card.cannot { background: linear-gradient(180deg, var(--sda-red-bg), var(--sda-card) 45%); border-color: var(--sda-red-border); }
.sda-access-card h3 { display: flex; align-items: center; gap: 8px; font: 700 14px var(--sda-font); margin: 0 0 12px; }
.sda-access-card.can h3 { color: var(--sda-green); }
.sda-access-card.cannot h3 { color: var(--sda-red); }
.sda-access-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.sda-access-list li { display: flex; align-items: flex-start; gap: 9px; font: 500 12.5px var(--sda-font); color: var(--sda-text); }
.sda-access-list li svg { flex: none; margin-top: 2px; }
.sda-access-list.can li svg { color: var(--sda-green); }
.sda-access-list.cannot li svg { color: var(--sda-red); }

/* ------------------------------------------------------------ responsive -- */

@media (max-width: 1024px) {
    .sda-shell, .sda-shell.collapsed { grid-template-columns: 1fr; }

    .sda-sidebar {
        position: fixed;
        left: 0; top: 0; bottom: 0;
        width: var(--sda-sidebar-w);
        transform: translateX(-100%);
        transition: transform .18s ease-out;
        z-index: 40;
    }

    .sda-shell.mobile-open .sda-sidebar { transform: none; box-shadow: 0 0 40px rgba(20, 10, 40, .45); }

    /* the collapsed (icon-rail) styles never apply on mobile — the drawer is always full width */
    .sda-shell.collapsed .sda-logo-row { padding: 16px 18px; justify-content: flex-start; }
    .sda-shell.collapsed .sda-nav-item { padding: 0 12px; justify-content: flex-start; width: auto; margin: 0; }
    .sda-shell.collapsed .sda-nav-label, .sda-shell.collapsed .sda-nav-badge,
    .sda-shell.collapsed .sda-logo-text, .sda-shell.collapsed .sda-foot-text { display: block; }
    .sda-shell.collapsed .sda-side-foot { flex-direction: row; padding: 14px 16px; }

    .sda-backdrop {
        position: fixed; inset: 0;
        background: rgba(20, 10, 40, .4);
        z-index: 30;
        border: none;
    }

    .sda-hamburger {
        display: flex;
        width: 38px; height: 38px;
        border-radius: 8px;
        align-items: center; justify-content: center;
        color: var(--sda-text);
        cursor: pointer;
        border: 1px solid var(--sda-border);
        background: transparent;
    }

    .sda-content { padding: 18px 20px; }
    .sda-dash-cols { grid-template-columns: 1fr !important; }
    .sda-split-cols { grid-template-columns: 1fr !important; }
    .sda-photo-grid { grid-template-columns: repeat(3, 1fr); }
    .sda-user-text { display: none; }
    .sda-dropdown { width: min(372px, calc(100vw - 32px)); }

    .sda-settings-field-grid, .sda-settings-pref-grid, .sda-access-cols { grid-template-columns: 1fr !important; }
    .sda-settings-profile-grid { flex-direction: column; align-items: flex-start !important; }
}