/* ============================================================
   CSS Custom Properties — Light (default) & Dark themes
   ============================================================ */
:root {
    --bg:            #f3f4f6;
    --surface:       #ffffff;
    --border:        #e5e7eb;
    --text:          #111827;
    --text-muted:    #6b7280;
    --label:         #6b7280;
    --sidebar-bg:    #ffffff;
    --sidebar-w:     240px;
    --item-hover:    #f3f4f6;
    --item-active:   #f3f4f6;
    --input-bg:     #f9fafb;
    --input-border: #e5e7eb;
    --btn-bg:       #111827;
    --btn-text:     #ffffff;
    --toggle-bg:    #e5e7eb;
    --toggle-icon:  #374151;
    --error:        #dc2626;
    --success:      #16a34a;
    --shadow:       0 1px 3px rgba(0,0,0,.08), 0 4px 16px rgba(0,0,0,.06);
}

[data-theme="dark"] {
    --bg:            #0f172a;
    --surface:       #1e293b;
    --border:        #334155;
    --text:          #f1f5f9;
    --text-muted:    #94a3b8;
    --label:         #94a3b8;
    --sidebar-bg:    #1e293b;
    --item-hover:    #0f172a;
    --item-active:   #0f172a;
    --input-bg:     #0f172a;
    --input-border: #334155;
    --btn-bg:       #f1f5f9;
    --btn-text:     #0f172a;
    --toggle-bg:    #334155;
    --toggle-icon:  #f1f5f9;
    --error:        #f87171;
    --success:      #4ade80;
    --shadow:       0 1px 3px rgba(0,0,0,.3), 0 4px 16px rgba(0,0,0,.25);
}

/* ============================================================
   Reset & Base
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { height: 100%; }

body {
    min-height: 100%;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    transition: background .2s, color .2s;
}

/* ============================================================
   Auth layout — vertically & horizontally centred card
   ============================================================ */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px 16px;
}

.auth-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: var(--shadow);
    padding: 36px 32px;
    width: 100%;
    max-width: 440px;
    position: relative;
    transition: background .2s, border-color .2s;
}

/* ============================================================
   Theme toggle button (top-right corner of card)
   ============================================================ */
.theme-toggle {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 38px;
    height: 38px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--toggle-bg);
    color: var(--toggle-icon);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: background .2s, border-color .2s, color .2s;
}

.theme-toggle:hover { opacity: .8; }

/* ============================================================
   Auth logo
   ============================================================ */
.auth-logo {
    text-align: center;
    margin-bottom: 24px;
}

.auth-logo-img {
    width: 140px;
    height: auto;
}

/* ============================================================
   Auth card typography
   ============================================================ */
.auth-card h1 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--text);
}

.auth-card .auth-subtitle {
    color: var(--text-muted);
    margin-bottom: 28px;
    font-size: 14px;
}

/* ============================================================
   Form elements
   ============================================================ */
.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: var(--label);
    margin-bottom: 6px;
}

.form-group input {
    width: 100%;
    padding: 11px 14px;
    border: 1px solid var(--input-border);
    border-radius: 8px;
    background: var(--input-bg);
    color: var(--text);
    font-size: 14px;
    outline: none;
    transition: border-color .15s, background .2s, color .2s;
}

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

.form-group input:focus {
    border-color: var(--text-muted);
}

.btn-primary {
    display: block;
    width: 100%;
    padding: 12px;
    margin-top: 24px;
    background: var(--btn-bg);
    color: var(--btn-text);
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: opacity .15s, background .2s, color .2s;
}

.btn-primary:hover { opacity: .85; }

/* ============================================================
   Flash messages
   ============================================================ */
.flash-error {
    background: color-mix(in srgb, var(--error) 12%, transparent);
    color: var(--error);
    border: 1px solid color-mix(in srgb, var(--error) 30%, transparent);
    border-radius: 8px;
    padding: 10px 14px;
    margin-bottom: 18px;
    font-size: 13px;
}

.flash-success {
    background: color-mix(in srgb, var(--success) 12%, transparent);
    color: var(--success);
    border: 1px solid color-mix(in srgb, var(--success) 30%, transparent);
    border-radius: 8px;
    padding: 10px 14px;
    margin-bottom: 18px;
    font-size: 13px;
}

/* ============================================================
   Two-panel app layout
   ============================================================ */
.app-layout {
    display: flex;
    height: 100vh;
    overflow: hidden;
    background: var(--bg);
}

/* ── Sidebar ─────────────────────────────────────────────── */
.sidebar {
    width: var(--sidebar-w);
    min-width: 140px;
    max-width: 480px;
    position: relative;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: background .2s, border-color .2s;
    flex-shrink: 0;
}

/* ── Resize handle ───────────────────────────────────────── */
.sidebar-resize {
    position: absolute;
    top: 0;
    right: -3px;
    width: 6px;
    height: 100%;
    cursor: col-resize;
    z-index: 10;
    background: transparent;
    transition: background .15s;
}

.sidebar-resize::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 2px;
    height: 32px;
    border-radius: 1px;
    background: transparent;
    transition: background .15s;
}

.sidebar-resize:hover,
.sidebar-resize.is-dragging {
    background: color-mix(in srgb, var(--border) 60%, transparent);
}

.sidebar-resize:hover::after,
.sidebar-resize.is-dragging::after {
    background: var(--text-muted);
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 20px 16px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.sidebar-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
}

.sidebar-actions {
    display: flex;
    gap: 8px;
}

.icon-btn {
    width: 34px;
    height: 34px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    font-size: 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .15s, border-color .2s, color .2s;
    padding: 0;
    line-height: 1;
}

.icon-btn:hover { background: var(--item-hover); }

/* ── Search ──────────────────────────────────────────────── */
.sidebar-search {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.search-icon {
    color: var(--text-muted);
    flex-shrink: 0;
}

.search-input {
    flex: 1;
    border: none;
    background: transparent;
    color: var(--text);
    font-size: 14px;
    outline: none;
}

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

/* ── Partner list ────────────────────────────────────────── */
.partner-list {
    flex: 1;
    overflow-y: auto;
    padding: 8px 0;
}

.partner-item {
    display: block;
    padding: 11px 20px;
    color: var(--text);
    text-decoration: none;
    font-size: 14px;
    border-radius: 0;
    transition: background .12s;
}

.partner-item:hover  { background: var(--item-hover); }
.partner-item.active { background: var(--item-active); font-weight: 500; }

.sidebar-empty {
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
    padding: 24px 16px 12px;
}

/* ── Sidebar footer ──────────────────────────────────────── */
.sidebar-footer {
    border-top: 1px solid var(--border);
    padding: 10px 8px;
    flex-shrink: 0;
    transition: border-color .2s;
}

.sidebar-admin-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 9px 12px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 13px;
    border-radius: 8px;
    transition: background .12s, color .12s;
}

.sidebar-admin-link:hover { background: var(--item-hover); color: var(--text); }

/* ── Main panel ──────────────────────────────────────────── */
.main-panel {
    flex: 1;
    overflow-y: auto;
    padding: 32px 40px;
    background: var(--bg);
    transition: background .2s;
}

.main-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 28px;
}

/* ── Reference numbers grid ──────────────────────────────── */
.refs-section {}

.refs-heading {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.refs-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px 20px;
}

.ref-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.ref-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: var(--label);
}

.ref-input {
    padding: 10px 12px;
    border: 1px solid var(--input-border);
    border-radius: 8px;
    background: var(--input-bg);
    color: var(--text);
    font-size: 14px;
    outline: none;
    transition: border-color .15s, background .2s, color .2s, box-shadow .15s;
    width: 100%;
}

.ref-input::placeholder { color: var(--text-muted); }
.ref-input:focus { border-color: var(--text-muted); }

/* Autosave state indicators */
.ref-input.ref-saving { opacity: .6; }

.ref-input.ref-saved {
    border-color: var(--success);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--success) 20%, transparent);
}

.ref-input.ref-error {
    border-color: var(--error);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--error) 20%, transparent);
}

/* ============================================================
   Modal — Manage Partners
   ============================================================ */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, .35);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

[data-theme="dark"] .modal-backdrop { background: rgba(0, 0, 0, .55); }

.modal-box {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    box-shadow: 0 8px 40px rgba(0,0,0,.18);
    width: 100%;
    max-width: 480px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: background .2s, border-color .2s;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 20px 16px;
    flex-shrink: 0;
}

.modal-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
}

.modal-close {
    width: 28px;
    height: 28px;
    border: none;
    background: none;
    color: var(--text-muted);
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .15s, color .15s;
}

.modal-close:hover { background: var(--item-hover); color: var(--text); }

/* Add row */
.modal-add-row {
    display: flex;
    gap: 8px;
    padding: 0 20px 16px;
    flex-shrink: 0;
}

.modal-input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid var(--input-border);
    border-radius: 8px;
    background: var(--input-bg);
    color: var(--text);
    font-size: 14px;
    outline: none;
    transition: border-color .15s, background .2s, color .2s;
}

.modal-input::placeholder { color: var(--text-muted); }
.modal-input:focus { border-color: var(--text-muted); }

.modal-add-btn {
    width: 42px;
    height: 42px;
    flex-shrink: 0;
    background: var(--btn-bg);
    color: var(--btn-text);
    border: none;
    border-radius: 8px;
    font-size: 22px;
    font-weight: 300;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    transition: opacity .15s, background .2s, color .2s;
}

.modal-add-btn:hover { opacity: .85; }

/* Partner rows */
.modal-list {
    list-style: none;
    overflow-y: auto;
    padding: 0 20px 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.modal-partner-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 10px;
    transition: border-color .2s;
}

.modal-partner-name {
    flex: 1;
    font-size: 14px;
    color: var(--text);
    font-weight: 500;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.modal-status {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: .06em;
    color: var(--text-muted);
    flex-shrink: 0;
    transition: color .2s;
}

.modal-status.is-active { color: var(--success); }

/* Toggle switch */
.toggle-switch {
    position: relative;
    width: 36px;
    height: 20px;
    border-radius: 10px;
    background: var(--border);
    border: none;
    cursor: pointer;
    flex-shrink: 0;
    transition: background .2s;
    padding: 0;
}

.toggle-switch.on { background: #111827; }
[data-theme="dark"] .toggle-switch.on { background: var(--btn-text); }

.toggle-knob {
    position: absolute;
    top: 3px;
    left: 3px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #ffffff;
    transition: transform .2s;
    pointer-events: none;
    display: block;
}

[data-theme="dark"] .toggle-knob { background: #1e293b; }

.toggle-switch.on .toggle-knob { transform: translateX(16px); }

/* Delete button */
.modal-delete-btn {
    width: 30px;
    height: 30px;
    border: none;
    background: none;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background .15s, color .15s;
    padding: 0;
}

.modal-delete-btn:hover { background: color-mix(in srgb, var(--error) 12%, transparent); color: var(--error); }

/* Edit button */
.modal-edit-btn {
    width: 30px;
    height: 30px;
    border: none;
    background: none;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background .15s, color .15s;
    padding: 0;
}

.modal-edit-btn:hover { background: var(--item-hover); color: var(--text); }

/* Inline edit form */
.modal-edit-form {
    display: flex;
    align-items: center;
    gap: 6px;
    width: 100%;
}

.modal-edit-name {
    flex: 1;
    min-width: 0;
    padding: 6px 10px;
    border: 1px solid var(--input-border);
    border-radius: 6px;
    background: var(--input-bg);
    color: var(--text);
    font-size: 13px;
    outline: none;
    transition: border-color .15s, background .2s, color .2s;
}

.modal-edit-name:focus { border-color: var(--text-muted); }

.modal-edit-slots-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: .05em;
    color: var(--text-muted);
    flex-shrink: 0;
}

.modal-edit-slots {
    width: 52px;
    padding: 6px;
    border: 1px solid var(--input-border);
    border-radius: 6px;
    background: var(--input-bg);
    color: var(--text);
    font-size: 13px;
    text-align: center;
    outline: none;
    flex-shrink: 0;
    transition: border-color .15s, background .2s, color .2s;
}

.modal-edit-slots:focus { border-color: var(--text-muted); }

.modal-save-btn,
.modal-cancel-btn {
    width: 30px;
    height: 30px;
    border: none;
    background: none;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background .15s, color .15s;
    padding: 0;
}

.modal-save-btn:hover   { background: color-mix(in srgb, var(--success) 15%, transparent); color: var(--success); }
.modal-cancel-btn:hover { background: color-mix(in srgb, var(--error) 12%, transparent); color: var(--error); }

/* ============================================================
   Profile — dropdown menu
   ============================================================ */
.profile-menu-wrap {
    position: relative;
}

.profile-dropdown {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    box-shadow: var(--shadow);
    min-width: 160px;
    z-index: 300;
    overflow: hidden;
    padding: 4px 0;
}

.profile-dropdown-item {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 8px 14px;
    background: none;
    border: none;
    color: var(--text);
    font-size: .8rem;
    text-decoration: none;
    cursor: pointer;
    white-space: nowrap;
    transition: background .12s;
    font-family: inherit;
}

.profile-dropdown-item:hover {
    background: var(--item-hover);
}

.profile-dropdown-item--danger {
    color: var(--error);
}

.profile-dropdown-divider {
    height: 1px;
    background: var(--border);
    margin: 4px 0;
}

/* ============================================================
   Profile — settings modal
   ============================================================ */
.profile-modal-body {
    padding: 20px 24px 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.profile-field-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.profile-label {
    font-size: .75rem;
    color: var(--label);
    font-weight: 500;
    letter-spacing: .03em;
    text-transform: uppercase;
}

.profile-btn-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 4px;
}

.profile-save-btn {
    border-radius: 8px;
    padding: 0 18px;
    height: 36px;
    font-size: .82rem;
    width: auto;
}

.profile-cancel-btn {
    height: 36px;
    padding: 0 16px;
    background: none;
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-muted);
    font-size: .82rem;
    font-family: inherit;
    cursor: pointer;
    transition: background .12s, color .12s;
}

.profile-cancel-btn:hover {
    background: var(--item-hover);
    color: var(--text);
}

.profile-msg {
    font-size: .82rem;
    padding: 8px 12px;
    border-radius: 7px;
    margin: 0;
}

.profile-msg--ok {
    background: color-mix(in srgb, var(--success) 12%, transparent);
    color: var(--success);
}

.profile-msg--err {
    background: color-mix(in srgb, var(--error) 10%, transparent);
    color: var(--error);
}