/* css/account.css — Phase 3 (#80): account settings UI */

/* ---- Layout & guard ----------------------------------------------------- */
.account-container {
    max-width: 760px;
    margin: 0 auto;
    padding-top: 1.25rem;
    padding-bottom: 4rem;
}

.account-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem 1rem;
    color: var(--text-muted);
    gap: 1rem;
}
.account-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: account-spin 0.7s linear infinite;
}
@keyframes account-spin {
    to { transform: rotate(360deg); }
}

.account-shell {
    animation: account-fadein var(--t-base, 220ms) var(--ease-out, ease-out);
}
@keyframes account-fadein {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: none; }
}

/* ---- Header ------------------------------------------------------------- */
.account-header {
    margin: 0 0 1.5rem;
}
.account-header h1 {
    font-size: 1.875rem;
    font-weight: 700;
    margin: 0 0 0.5rem;
    letter-spacing: -0.01em;
    color: var(--text);
}
.account-lead {
    color: var(--text-muted);
    margin: 0;
    line-height: 1.55;
    max-width: 60ch;
}

/* ---- Tabs --------------------------------------------------------------- */
.account-tabs {
    display: flex;
    gap: 0.25rem;
    border-bottom: 1px solid var(--border);
    margin: 0 0 1.5rem;
    overflow-x: auto;
    scrollbar-width: none;
}
.account-tabs::-webkit-scrollbar { display: none; }
.account-tab {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.7rem 1rem 0.85rem;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-muted);
    text-decoration: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    white-space: nowrap;
    transition: color var(--t-fast, 150ms), border-color var(--t-fast, 150ms);
}
.account-tab:hover {
    color: var(--text);
}
.account-tab-active,
.account-tab[aria-current="page"] {
    color: var(--primary);
    border-bottom-color: var(--primary);
    font-weight: 600;
}
.account-tab-icon {
    font-size: 1rem;
    line-height: 1;
}

/* ---- Cards -------------------------------------------------------------- */
.account-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg, 12px);
    padding: 1.5rem;
    margin: 0 0 1.25rem;
    box-shadow: var(--shadow-xs, 0 1px 2px rgba(15,23,42,.04));
}
.account-card-head {
    margin: 0 0 1.1rem;
}
.account-card-head h2 {
    font-size: 1.125rem;
    font-weight: 650;
    margin: 0 0 0.3rem;
    color: var(--text);
}
.account-card-sub {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* ---- Read-only summary -------------------------------------------------- */
.account-summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--border);
    font-size: 0.95rem;
    flex-wrap: wrap;
}
.account-summary-row:last-child { border-bottom: 0; }
.account-summary-label {
    color: var(--text-muted);
    font-weight: 500;
}
.account-summary-value {
    color: var(--text);
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.account-role-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.18rem 0.55rem;
    border-radius: var(--radius-full, 999px);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    background: var(--primary-50, #eff6ff);
    color: var(--primary);
}
.account-role-badge.account-role-pro {
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    color: #92400e;
}
.account-role-badge.account-role-admin {
    background: var(--text);
    color: var(--surface);
}
.account-role-hint {
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* ---- Forms -------------------------------------------------------------- */
.account-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.account-fieldset {
    border: 0;
    padding: 0;
    margin: 0 0 1.5rem;
}
.account-fieldset:last-child { margin-bottom: 0; }
.account-fieldset legend {
    font-size: 1rem;
    font-weight: 650;
    color: var(--text);
    padding: 0;
    margin: 0 0 0.35rem;
}

.account-field {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}
.account-field label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text);
}
.account-field input,
.account-modal-input {
    width: 100%;
    padding: 0.6rem 0.85rem;
    font-size: 0.95rem;
    color: var(--text);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md, 8px);
    transition: border-color var(--t-fast, 150ms), box-shadow var(--t-fast, 150ms);
    font-family: inherit;
}
.account-field input:focus,
.account-modal-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.18);
}
.account-field input::placeholder {
    color: var(--text-muted);
    opacity: 0.7;
}
.account-field-hint {
    margin: 0;
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.4;
}
.account-field-hint-inline {
    color: var(--text-muted);
}

.account-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}
@media (max-width: 540px) {
    .account-grid-2 { grid-template-columns: 1fr; }
}

/* ---- Buttons ------------------------------------------------------------ */
.account-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.65rem 1.1rem;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-md, 8px);
    border: 1px solid transparent;
    cursor: pointer;
    transition: background var(--t-fast, 150ms), color var(--t-fast, 150ms),
                border-color var(--t-fast, 150ms), transform var(--t-fast, 150ms);
    font-family: inherit;
}
.account-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}
.account-btn:active:not(:disabled) {
    transform: translateY(1px);
}
.account-btn-primary {
    background: var(--primary);
    color: #fff;
}
.account-btn-primary:hover:not(:disabled) {
    background: var(--primary-dark);
}
.account-btn-ghost {
    background: transparent;
    color: var(--text);
    border-color: var(--border);
}
.account-btn-ghost:hover:not(:disabled) {
    background: var(--bg-elevated);
}
.account-btn-danger {
    background: #fff;
    color: #b91c1c;
    border-color: #fecaca;
}
.account-btn-danger:hover:not(:disabled) {
    background: #fef2f2;
    border-color: #fca5a5;
}

.account-form-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 0.5rem;
}

/* ---- Status messages ---------------------------------------------------- */
.account-status {
    font-size: 0.875rem;
    color: var(--text-muted);
    flex: 1;
    min-height: 1.25rem;
}
.account-status-success { color: var(--success, #16a34a); }
.account-status-error { color: #dc2626; }

/* ---- Danger zone -------------------------------------------------------- */
.account-danger {
    border-color: #fecaca;
    background: linear-gradient(180deg, #fff 0%, #fef7f7 100%);
}
.account-danger .account-card-head h2 {
    color: #991b1b;
}

/* ---- Frequency cards ---------------------------------------------------- */
.freq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 0.75rem;
    margin-top: 0.85rem;
}
.freq-option {
    cursor: pointer;
    position: relative;
}
.freq-option input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}
.freq-card {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    padding: 0.95rem 1rem;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-md, 8px);
    background: var(--surface);
    transition: border-color var(--t-fast, 150ms), background var(--t-fast, 150ms),
                box-shadow var(--t-fast, 150ms), transform var(--t-fast, 150ms);
    text-align: left;
}
.freq-option:hover .freq-card {
    border-color: var(--primary);
}
.freq-option input[type="radio"]:checked + .freq-card {
    border-color: var(--primary);
    background: var(--primary-50, #eff6ff);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}
.freq-option input[type="radio"]:focus-visible + .freq-card {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}
.freq-option-pro .freq-card {
    opacity: 0.7;
    cursor: not-allowed;
}
.freq-option-pro:hover .freq-card {
    border-color: var(--border);
}
.freq-icon {
    font-size: 1.3rem;
    line-height: 1;
}
.freq-title {
    font-weight: 600;
    color: var(--text);
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}
.freq-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.35;
}
.freq-pro-badge {
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    color: #92400e;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 0.1rem 0.4rem;
    border-radius: var(--radius-full, 999px);
    letter-spacing: 0.04em;
}

/* ---- Keyword chips input ------------------------------------------------ */
.chips-input {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.5rem;
    min-height: 2.6rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md, 8px);
    cursor: text;
    transition: border-color var(--t-fast, 150ms), box-shadow var(--t-fast, 150ms);
    margin-top: 0.85rem;
}
.chips-input:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.18);
}
.chips-list {
    display: contents;
    list-style: none;
    margin: 0;
    padding: 0;
}
.chip {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem 0.35rem 0.25rem 0.65rem;
    font-size: 0.85rem;
    background: var(--primary-50, #eff6ff);
    color: var(--primary-dark);
    border-radius: var(--radius-full, 999px);
    border: 1px solid var(--primary-light, #dbeafe);
    animation: chip-in 180ms var(--ease-spring, cubic-bezier(.34,1.56,.64,1));
}
@keyframes chip-in {
    from { transform: scale(0.85); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}
.chip-text {
    font-weight: 500;
}
.chip-remove {
    width: 1.25rem;
    height: 1.25rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 0;
    background: transparent;
    color: var(--primary-dark);
    cursor: pointer;
    font-size: 1.05rem;
    line-height: 1;
    padding: 0;
    transition: background var(--t-fast, 150ms);
}
.chip-remove:hover {
    background: rgba(37, 99, 235, 0.18);
}
.chips-textinput {
    flex: 1;
    min-width: 8rem;
    border: 0;
    background: transparent;
    font-size: 0.95rem;
    color: var(--text);
    padding: 0.3rem;
    font-family: inherit;
}
.chips-textinput:focus {
    outline: none;
}
.chips-textinput::placeholder {
    color: var(--text-muted);
}

kbd {
    display: inline-block;
    padding: 0.05rem 0.35rem;
    font-size: 0.78rem;
    font-family: ui-monospace, SFMono-Regular, monospace;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-bottom-width: 2px;
    border-radius: 4px;
    color: var(--text);
}

/* ---- Region grid -------------------------------------------------------- */
.regions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 0.45rem;
    margin-top: 0.85rem;
}
.region-chip {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.5rem 0.7rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-md, 8px);
    background: var(--surface);
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--text);
    transition: border-color var(--t-fast, 150ms), background var(--t-fast, 150ms);
}
.region-chip:hover {
    border-color: var(--primary);
}
.region-chip input[type="checkbox"] {
    accent-color: var(--primary);
    cursor: pointer;
    margin: 0;
}
.region-chip input[type="checkbox"]:checked + .region-chip-label {
    color: var(--primary-dark);
    font-weight: 600;
}
.region-chip:has(input[type="checkbox"]:checked) {
    border-color: var(--primary);
    background: var(--primary-50, #eff6ff);
}

/* ---- Delete modal ------------------------------------------------------- */
.account-modal-backdrop {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.55);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    animation: account-modal-fade var(--t-base, 220ms) var(--ease-out, ease-out);
}
.account-modal-backdrop[hidden] { display: none; }
@keyframes account-modal-fade {
    from { opacity: 0; }
    to { opacity: 1; }
}
.account-modal {
    background: var(--surface);
    border-radius: var(--radius-lg, 12px);
    padding: 1.75rem;
    max-width: 460px;
    width: 100%;
    box-shadow: var(--shadow-lg, 0 20px 50px rgba(0,0,0,0.25));
    position: relative;
    animation: account-modal-pop 280ms var(--ease-spring, cubic-bezier(.34,1.56,.64,1));
}
@keyframes account-modal-pop {
    from { opacity: 0; transform: scale(0.92) translateY(8px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}
.account-modal h2 {
    margin: 0 0 0.7rem;
    color: #991b1b;
    font-size: 1.25rem;
    font-weight: 700;
}
.account-modal p {
    margin: 0 0 0.85rem;
    color: var(--text);
    line-height: 1.55;
}
.account-modal code {
    background: var(--bg-elevated);
    padding: 0.05rem 0.35rem;
    border-radius: 4px;
    font-family: ui-monospace, SFMono-Regular, monospace;
    color: #b91c1c;
}
.account-modal-input {
    margin: 0.5rem 0 1.1rem;
}
.account-modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.6rem;
    margin-top: 0.5rem;
    flex-wrap: wrap;
}
.account-modal-close {
    position: absolute;
    top: 0.6rem;
    right: 0.85rem;
    background: transparent;
    border: 0;
    font-size: 1.6rem;
    line-height: 1;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    transition: background var(--t-fast, 150ms), color var(--t-fast, 150ms);
}
.account-modal-close:hover {
    background: var(--bg-elevated);
    color: var(--text);
}

/* ---- Responsive --------------------------------------------------------- */
@media (max-width: 600px) {
    .account-container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    .account-card { padding: 1.1rem; }
    .account-header h1 { font-size: 1.5rem; }
    .freq-grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* ---- Reduced motion ----------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
    .account-shell,
    .account-modal-backdrop,
    .account-modal,
    .chip {
        animation: none;
    }
    .account-spinner { animation: account-spin 2s linear infinite; }
}