/* ============================================================
   Nevai Math — Account, Library, and modal UI styles
   Fully theme-aware (uses variables from main.css).
   ============================================================ */

/* ------------------------------------------------------------
   Account button (bottom right)
   ------------------------------------------------------------ */

#matrix-math-login-btn {
    position: fixed;
    bottom: 16px;
    right: 16px;
    z-index: 92;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 16px;

    background: var(--accent);
    border: none;
    border-radius: 999px;
    box-shadow: var(--shadow-small);

    color: var(--accent-contrast);
    font: 600 13px/1 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    cursor: pointer;
}

#matrix-math-login-btn:hover {
    filter: brightness(1.08);
}

#matrix-math-login-btn.logged-in {
    background: var(--panel);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    border: 1px solid var(--panel-border);

    color: var(--text);
}

#matrix-math-login-btn .user-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    max-width: 220px;
}

#matrix-math-login-btn .user-badge .uname {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

#matrix-math-login-btn .avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px; height: 22px;
    flex: 0 0 auto;

    background: var(--accent);
    border-radius: 50%;

    color: var(--accent-contrast);
    font-size: 11px;
    font-weight: 700;
}

#matrix-math-login-btn .dot {
    width: 7px; height: 7px;
    border-radius: 50%;
    background: var(--success);
}

#matrix-math-login-btn .dot.syncing {
    background: var(--highlight);
}

#matrix-math-login-btn .dot.error {
    background: var(--error);
}

/* ------------------------------------------------------------
   Account modal
   ------------------------------------------------------------ */

#matrix-login-overlay {
    position: fixed;
    inset: 0;
    z-index: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;

    background: hsla(224, 25%, 5%, 0.55);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

#matrix-login-overlay.hidden {
    display: none;
}

#matrix-login-modal {
    display: flex;
    flex-direction: column;
    width: min(560px, 100%);
    max-height: min(86vh, 720px);
    overflow: hidden;

    background: var(--panel-solid);
    border: 1px solid var(--panel-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);

    color: var(--text);
    font: 14px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

#matrix-login-modal .nevai-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 18px 22px 14px;
}

#matrix-login-modal .nevai-brand h2 {
    margin: 0;
    font-size: 17px;
    font-weight: 700;
}

#matrix-login-modal .nevai-brand .issuer {
    font-size: 11px;
    color: var(--text-faint);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-top: 2px;
}

#matrix-login-modal .nevai-brand .avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px; height: 44px;
    flex: 0 0 auto;

    background: var(--accent);
    border-radius: 12px;

    color: var(--accent-contrast);
    font-size: 17px;
    font-weight: 700;
}

#matrix-login-modal .nevai-brand .who {
    flex: 1;
    min-width: 0;
}

#matrix-login-modal .nevai-brand .who .uid {
    font-size: 12px;
    color: var(--text-dim);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

#matrix-login-modal .provider-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.04em;
    background: var(--accent-soft);
    color: var(--accent);
    border: 1px solid transparent;
}

#matrix-login-modal .provider-badge.local {
    background: var(--highlight-soft);
    color: var(--highlight);
}

#matrix-login-modal .provider-badge.guest {
    background: var(--hover);
    color: var(--text-dim);
}

/* Tabs */
#matrix-login-modal .tabs {
    display: flex;
    gap: 2px;
    padding: 0 14px;
    border-bottom: 1px solid var(--panel-border);
    overflow-x: auto;
    scrollbar-width: none;
}

#matrix-login-modal .tabs::-webkit-scrollbar { display: none; }

#matrix-login-modal .tabs button {
    padding: 9px 14px;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    border-radius: 0;

    color: var(--text-dim);
    font: inherit;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
}

#matrix-login-modal .tabs button:hover {
    color: var(--text);
    background: var(--hover);
}

#matrix-login-modal .tabs button.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

/* Tab content */
#matrix-login-modal .tab-body {
    flex: 1;
    overflow-y: auto;
    padding: 16px 22px 20px;
}

#matrix-login-modal .tab-page {
    display: none;
}

#matrix-login-modal .tab-page.active {
    display: block;
}

/* Generic form + rows */
#matrix-login-modal .form-group {
    margin-bottom: 14px;
}

#matrix-login-modal .form-group label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-dim);
    margin-bottom: 4px;
}

#matrix-login-modal .form-group input,
#matrix-login-modal .form-group select {
    width: 100%;
    padding: 9px 12px;

    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: var(--radius-small);

    color: var(--text);
    font: inherit;
    outline: none;
}

#matrix-login-modal .form-group input:focus,
#matrix-login-modal .form-group select:focus {
    border-color: var(--accent);
}

#matrix-login-modal .form-group input::placeholder {
    color: var(--text-faint);
}

#matrix-login-modal .form-row {
    display: flex;
    gap: 10px;
}

#matrix-login-modal .form-row > .form-group {
    flex: 1;
}

#matrix-login-modal .error-msg {
    color: var(--error);
    font-size: 13px;
    margin: 8px 0;
    text-align: center;
}

#matrix-login-modal .status-msg {
    color: var(--success);
    font-size: 13px;
    margin: 8px 0;
    text-align: center;
}

#matrix-login-modal .btn-row {
    display: flex;
    gap: 8px;
    margin-top: 16px;
}

#matrix-login-modal .btn-row button {
    flex: 1;
    padding: 10px;
    border: 1px solid var(--input-border);
    border-radius: var(--radius-small);
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    background: var(--input-bg);
    color: var(--text);
}

#matrix-login-modal .btn-primary {
    background: var(--accent);
    border-color: transparent;
    color: var(--accent-contrast);
}

#matrix-login-modal .btn-primary:hover {
    filter: brightness(1.08);
}

#matrix-login-modal .btn-primary:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

#matrix-login-modal .btn-secondary:hover {
    background: var(--hover);
}

#matrix-login-modal .btn-danger {
    color: var(--error);
    border-color: var(--error);
    background: transparent;
}

#matrix-login-modal .btn-danger:hover {
    background: hsla(0, 62%, 52%, 0.12);
}

/* Info list (session details) */
#matrix-login-modal .info-list {
    border: 1px solid var(--panel-border);
    border-radius: var(--radius-small);
    overflow: hidden;
    margin-bottom: 14px;
}

#matrix-login-modal .info-list .info-row {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 9px 12px;
    font-size: 13px;
}

#matrix-login-modal .info-list .info-row + .info-row {
    border-top: 1px solid var(--panel-border);
}

#matrix-login-modal .info-list .info-row .k {
    color: var(--text-dim);
    flex: 0 0 auto;
}

#matrix-login-modal .info-list .info-row .v {
    font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    font-size: 12px;
    text-align: right;
    overflow-wrap: anywhere;
}

/* Section headings inside tabs */
#matrix-login-modal h3 {
    margin: 4px 0 10px;
    font-size: 13px;
    font-weight: 700;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

#matrix-login-modal .hint-text {
    font-size: 12px;
    color: var(--text-faint);
    margin: 6px 0 12px;
}

/* Toggle switches */
#matrix-login-modal .toggle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 0;
}

#matrix-login-modal .toggle-row + .toggle-row {
    border-top: 1px solid var(--panel-border);
}

#matrix-login-modal .toggle-row .t-label {
    font-size: 13.5px;
    font-weight: 500;
}

#matrix-login-modal .toggle-row .t-desc {
    font-size: 11.5px;
    color: var(--text-faint);
    margin-top: 1px;
}

#matrix-login-modal .switch {
    position: relative;
    width: 38px; height: 22px;
    flex: 0 0 auto;

    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 999px;
    cursor: pointer;
    transition: background var(--speed-fast);
}

#matrix-login-modal .switch::after {
    content: "";
    position: absolute;
    top: 2px; left: 2px;
    width: 16px; height: 16px;
    border-radius: 50%;
    background: var(--text-dim);
    transition: left var(--speed-fast), background var(--speed-fast);
}

#matrix-login-modal .switch.on {
    background: var(--accent);
    border-color: var(--accent);
}

#matrix-login-modal .switch.on::after {
    left: 18px;
    background: var(--accent-contrast);
}

/* Library */
#matrix-login-modal .lib-actions {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

#matrix-login-modal .lib-actions button {
    flex: 1;
    padding: 9px 8px;
    border: 1px solid var(--input-border);
    border-radius: var(--radius-small);
    background: var(--input-bg);
    color: var(--text);
    font: inherit;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
}

#matrix-login-modal .lib-actions button:hover {
    background: var(--hover);
}

#matrix-login-modal .lib-actions button.primary {
    background: var(--accent);
    border-color: transparent;
    color: var(--accent-contrast);
}

#matrix-login-modal .lib-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

#matrix-login-modal .lib-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;

    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: var(--radius-small);
}

#matrix-login-modal .lib-item:hover {
    border-color: var(--accent);
}

#matrix-login-modal .lib-item .lib-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px; height: 36px;
    flex: 0 0 auto;

    background: var(--accent-soft);
    border-radius: 8px;
    color: var(--accent);
    font-size: 16px;
}

#matrix-login-modal .lib-item .lib-info {
    flex: 1;
    min-width: 0;
}

#matrix-login-modal .lib-item .lib-name {
    font-weight: 600;
    font-size: 13.5px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

#matrix-login-modal .lib-item .lib-meta {
    font-size: 11.5px;
    color: var(--text-faint);
}

#matrix-login-modal .lib-item .lib-actions-item {
    display: flex;
    gap: 4px;
    flex: 0 0 auto;
}

#matrix-login-modal .lib-item .icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px; height: 30px;

    background: transparent;
    border: none;
    border-radius: 6px;

    color: var(--text-dim);
    font-size: 15px;
    cursor: pointer;
}

#matrix-login-modal .lib-item .icon-btn:hover {
    background: var(--hover);
    color: var(--text);
}

#matrix-login-modal .lib-item .icon-btn.danger:hover {
    background: hsla(0, 62%, 52%, 0.14);
    color: var(--error);
}

#matrix-login-modal .lib-empty {
    padding: 28px 12px;
    text-align: center;
    color: var(--text-faint);
    font-size: 13px;
    border: 1px dashed var(--input-border);
    border-radius: var(--radius-small);
}

/* Avatar picker row */
#matrix-login-modal .avatar-picker .avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px; height: 36px;

    border-radius: 50%;

    color: white;
    font-size: 14px;
    font-weight: 700;
}

/* Storage meter */
#matrix-login-modal .meter {
    height: 8px;
    background: var(--input-bg);
    border-radius: 999px;
    overflow: hidden;
    margin: 6px 0 4px;
}

#matrix-login-modal .meter > div {
    height: 100%;
    background: var(--accent);
    border-radius: 999px;
}

#matrix-login-modal .meter-label {
    display: flex;
    justify-content: space-between;
    font-size: 11.5px;
    color: var(--text-faint);
}

/* Close button */
#matrix-login-modal .modal-close {
    position: absolute;
    top: 12px; right: 12px;
    width: 30px; height: 30px;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: var(--text-dim);
    font-size: 18px;
    cursor: pointer;
}

#matrix-login-modal .modal-close:hover {
    background: var(--hover);
    color: var(--text);
}

/* Mobile tweaks for the account button */
@media (max-width: 900px) {
    #matrix-math-login-btn {
        top: 68px;
        right: 8px;
        bottom: auto;
        left: auto;
        padding: 7px 12px;
        font-size: 12px;
    }

    #matrix-math-login-btn .user-badge {
        max-width: 140px;
    }
}

/* Mobile tweaks for the modal */
@media (max-width: 560px) {
    #matrix-login-overlay {
        padding: 8px;
        align-items: flex-end;
    }

    #matrix-login-modal {
        max-height: 92vh;
        border-radius: var(--radius) var(--radius) 0 0;
    }
}