:root {
    --primary: #5b4bd8;
    --primary-dark: #4338ca;
    --ink: #1e293b;
    --muted: #64748b;
    --line: #dbe3ef;
    --surface: rgba(255, 255, 255, 0.94);
    --danger: #c93434;
    --danger-dark: #991b1b;
    --danger-soft: #fff3f2;
}

* {
    box-sizing: border-box;
}

html {
    min-width: 320px;
}

body {
    min-height: 100vh;
    margin: 0;
    background:
        radial-gradient(circle at 13% 12%, rgba(139, 92, 246, 0.26), transparent 28rem),
        radial-gradient(circle at 90% 84%, rgba(34, 211, 238, 0.2), transparent 30rem),
        linear-gradient(145deg, #eef2ff 0%, #f8fafc 46%, #ecfeff 100%);
    color: var(--ink);
    font-family: 'Noto Sans TC', 'Microsoft JhengHei', sans-serif;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(79, 70, 229, 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(79, 70, 229, 0.035) 1px, transparent 1px);
    background-size: 42px 42px;
    mask-image: linear-gradient(to bottom, #000, transparent 88%);
}

[hidden] {
    display: none !important;
}

a {
    color: inherit;
}

.skip-link {
    position: fixed;
    top: 10px;
    left: 10px;
    z-index: 30;
    padding: 9px 14px;
    border-radius: 8px;
    background: #fff;
    color: var(--primary-dark);
    font-weight: 800;
    text-decoration: none;
    transform: translateY(-160%);
}

.skip-link:focus {
    transform: translateY(0);
}

.top-bar {
    position: relative;
    z-index: 2;
    display: flex;
    width: min(1080px, calc(100% - 40px));
    min-height: 76px;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    margin: 0 auto;
}

.brand,
.home-link,
.primary-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 800;
    text-decoration: none;
}

.home-link,
.primary-link {
    padding: 9px 14px;
    border: 1px solid rgba(79, 70, 229, 0.2);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.7);
    color: var(--primary-dark);
}

.home-link:hover,
.home-link:focus-visible,
.primary-link:hover,
.primary-link:focus-visible {
    border-color: rgba(79, 70, 229, 0.52);
    background: #fff;
}

.settings-page {
    position: relative;
    z-index: 1;
    width: min(940px, calc(100% - 40px));
    margin: 0 auto;
    padding: 42px 0 80px;
}

.page-heading {
    margin-bottom: 28px;
}

.eyebrow,
.card-kicker,
.dialog-step {
    margin: 0 0 7px;
    color: var(--primary);
    font-size: 0.74rem;
    font-weight: 900;
    letter-spacing: 0.14em;
}

.page-heading h1 {
    margin: 0;
    color: #26235f;
    font-size: clamp(2rem, 5vw, 3.5rem);
    letter-spacing: -0.045em;
    line-height: 1.12;
}

.page-heading > p:last-child {
    margin: 12px 0 0;
    color: var(--muted);
    line-height: 1.7;
}

.state-card,
.profile-card,
.danger-card {
    border: 1px solid rgba(148, 163, 184, 0.3);
    border-radius: 24px;
    background: var(--surface);
    box-shadow: 0 24px 65px rgba(51, 65, 85, 0.13), inset 0 1px 0 rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
}

.state-card {
    display: flex;
    min-height: 150px;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding: 30px;
    color: var(--muted);
}

.state-card h2,
.state-card p {
    margin: 0;
}

.state-card p {
    margin: 4px 0 15px;
}

.state-icon {
    font-size: 2rem;
}

.loading-spinner {
    width: 28px;
    height: 28px;
    border: 3px solid #ddd6fe;
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.profile-card {
    overflow: hidden;
}

.profile-summary {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 18px;
    padding: 28px 30px;
    border-bottom: 1px solid var(--line);
    background: linear-gradient(120deg, rgba(238, 242, 255, 0.82), rgba(236, 254, 255, 0.54));
}

.avatar-wrap,
.user-photo,
.user-initial {
    width: 68px;
    height: 68px;
    border-radius: 50%;
}

.avatar-wrap {
    position: relative;
    box-shadow: 0 10px 25px rgba(79, 70, 229, 0.2);
}

.user-photo {
    display: block;
    object-fit: cover;
}

.user-initial {
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, var(--primary), #0891b2);
    color: #fff;
    font-size: 1.6rem;
    font-weight: 900;
}

.profile-summary h2 {
    overflow: hidden;
    margin: 0;
    color: #26235f;
    font-size: 1.45rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.profile-email {
    overflow: hidden;
    margin: 4px 0 0;
    color: var(--muted);
    text-overflow: ellipsis;
    white-space: nowrap;
}

.authorization-badge {
    padding: 7px 11px;
    border-radius: 999px;
    background: #e0f2fe;
    color: #0369a1;
    font-size: 0.8rem;
    font-weight: 800;
}

.authorization-badge.is-approved {
    background: #dcfce7;
    color: #166534;
}

.authorization-badge.is-admin {
    background: #ede9fe;
    color: #5b21b6;
}

.authorization-badge.is-unapproved {
    background: #fff7ed;
    color: #9a3412;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0;
    margin: 0;
    padding: 10px 30px 26px;
}

.info-item {
    min-width: 0;
    padding: 20px 0;
    border-bottom: 1px solid var(--line);
}

.info-item:nth-child(odd) {
    padding-right: 24px;
}

.info-item:nth-child(even) {
    padding-left: 24px;
    border-left: 1px solid var(--line);
}

.info-item dt {
    margin-bottom: 6px;
    color: var(--muted);
    font-size: 0.8rem;
    font-weight: 700;
}

.info-item dd {
    overflow-wrap: anywhere;
    margin: 0;
    color: #273449;
    font-size: 0.96rem;
    font-weight: 700;
}

.mono {
    font-family: Consolas, 'Courier New', monospace;
    font-size: 0.86rem !important;
}

.danger-card {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 24px;
    margin-top: 24px;
    padding: 28px 30px;
    border-color: rgba(220, 38, 38, 0.28);
    background: rgba(255, 247, 247, 0.94);
}

.danger-card .card-kicker {
    color: var(--danger);
}

.danger-card h2 {
    margin: 0;
    color: var(--danger-dark);
    font-size: 1.4rem;
}

.danger-card p:not(.card-kicker):not(.delete-status) {
    max-width: 680px;
    margin: 8px 0 0;
    color: #6b4b4b;
    line-height: 1.75;
}

.delete-account-button,
.warning-button,
.secondary-button {
    min-height: 44px;
    padding: 9px 16px;
    border: 0;
    border-radius: 10px;
    font: inherit;
    font-size: 0.9rem;
    font-weight: 800;
    cursor: pointer;
    transition: filter 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.delete-account-button {
    background: linear-gradient(135deg, #dc2626, #991b1b);
    color: #fff;
    box-shadow: 0 9px 22px rgba(185, 28, 28, 0.25);
}

.warning-button {
    background: #f59e0b;
    color: #3f2800;
}

.secondary-button {
    border: 1px solid var(--line);
    background: #fff;
    color: #475569;
}

.delete-account-button:hover:not(:disabled),
.delete-account-button:focus-visible:not(:disabled),
.warning-button:hover,
.warning-button:focus-visible,
.secondary-button:hover,
.secondary-button:focus-visible {
    filter: brightness(1.08);
    transform: translateY(-1px);
}

.delete-account-button:disabled {
    cursor: not-allowed;
    filter: grayscale(0.45);
    opacity: 0.55;
}

.delete-status {
    grid-column: 1 / -1;
    min-height: 1.5em;
    margin: 0;
    color: var(--danger-dark);
    font-size: 0.88rem;
    font-weight: 700;
}

.delete-status.is-success {
    color: #166534;
}

.confirm-dialog {
    width: min(520px, calc(100% - 32px));
    padding: 0;
    border: 1px solid rgba(148, 163, 184, 0.4);
    border-radius: 22px;
    background: #fff;
    color: var(--ink);
    box-shadow: 0 30px 90px rgba(15, 23, 42, 0.35);
}

.confirm-dialog::backdrop {
    background: rgba(15, 23, 42, 0.62);
    backdrop-filter: blur(6px);
}

.confirm-dialog > div {
    padding: 30px;
}

.dialog-icon {
    display: grid;
    width: 48px;
    height: 48px;
    margin-bottom: 17px;
    place-items: center;
    border-radius: 50%;
    background: #fef3c7;
    color: #92400e;
    font-size: 1.35rem;
    font-weight: 900;
}

.dialog-icon-final {
    background: #fee2e2;
    color: var(--danger-dark);
}

.confirm-dialog h2 {
    margin: 0;
    color: #1e293b;
    font-size: 1.45rem;
}

.confirm-dialog p:not(.dialog-step) {
    margin: 10px 0 0;
    color: var(--muted);
    line-height: 1.7;
}

.confirm-label {
    display: block;
    margin: 20px 0 7px;
    color: #475569;
    font-size: 0.82rem;
    font-weight: 800;
}

.confirm-input {
    width: 100%;
    min-height: 46px;
    padding: 9px 12px;
    border: 1px solid #cbd5e1;
    border-radius: 9px;
    color: var(--ink);
    font: inherit;
}

.confirm-input:focus {
    border-color: var(--danger);
    outline: 3px solid rgba(220, 38, 38, 0.13);
}

.dialog-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 24px;
}

@keyframes spin {
    to {
        transform: rotate(1turn);
    }
}

@media (max-width: 680px) {
    .top-bar,
    .settings-page {
        width: min(100% - 28px, 940px);
    }

    .settings-page {
        padding-top: 28px;
    }

    .brand span:last-child {
        display: none;
    }

    .profile-summary {
        grid-template-columns: auto minmax(0, 1fr);
        padding: 22px 20px;
    }

    .authorization-badge {
        grid-column: 1 / -1;
        justify-self: start;
    }

    .info-grid {
        grid-template-columns: 1fr;
        padding: 5px 20px 20px;
    }

    .info-item:nth-child(odd),
    .info-item:nth-child(even) {
        padding-right: 0;
        padding-left: 0;
        border-left: 0;
    }

    .danger-card {
        grid-template-columns: 1fr;
        padding: 23px 20px;
    }

    .danger-card .delete-account-button {
        width: 100%;
    }

    .confirm-dialog > div {
        padding: 24px 20px;
    }

    .dialog-actions {
        align-items: stretch;
        flex-direction: column-reverse;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}