:root {
    --settings-ink: #2d1b3d;
    --settings-muted: #6e6476;
    --settings-purple: #6b2a8b;
    --settings-purple-deep: #4f1d69;
    --settings-orange: #ff7420;
    --settings-line: #e3dce8;
    --settings-soft: #f7f3f9;
    --settings-canvas: #f4f1f6;
    --settings-success: #168355;
    --settings-danger: #ad2638;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
.settings-body { min-width: 320px; margin: 0; color: var(--settings-ink); background: var(--settings-canvas); font-family: Inter, Arial, Helvetica, sans-serif; }
.settings-skip { position: fixed; top: 10px; left: 10px; z-index: 100; padding: 9px 13px; border-radius: 8px; color: #fff; background: var(--settings-ink); transform: translateY(-150%); }
.settings-skip:focus { transform: translateY(0); }

.settings-page { width: min(1280px, calc(100% - 36px)); margin: 0 auto; padding: 52px 0 90px; }
.settings-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 32px; margin-bottom: 24px; }
.settings-eyebrow { color: var(--settings-purple); font-size: 12px; font-weight: 850; letter-spacing: .1em; text-transform: uppercase; }
.settings-heading h1 { margin: 5px 0 7px; font: 750 clamp(38px, 5vw, 58px)/1 Manrope, Inter, sans-serif; letter-spacing: -.045em; }
.settings-heading p { max-width: 690px; margin: 0; color: var(--settings-muted); font-size: 17px; line-height: 1.55; }
.settings-save-state { min-height: 28px; padding: 7px 11px; border-radius: 999px; color: var(--settings-muted); background: #ebe5ef; font-size: 12px; font-weight: 750; white-space: nowrap; }
.settings-save-state.is-success { color: #08643d; background: #dff5e9; }
.settings-save-state.is-error { color: #902132; background: #fde8eb; }

.settings-profile-banner {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto auto;
    align-items: center;
    gap: 22px;
    margin-bottom: 24px;
    padding: 22px 26px;
    border-radius: 18px;
    color: #fff;
    background: linear-gradient(120deg, #2d1b3d 0%, #47205d 70%, #5c246e 100%);
    box-shadow: 0 18px 42px rgba(45, 27, 61, .18);
}
.settings-avatar { width: 64px; height: 64px; display: grid; place-items: center; border: 2px solid rgba(255, 255, 255, .4); border-radius: 18px; background: rgba(255,255,255,.13); font-size: 21px; font-weight: 850; }
.settings-banner-identity h2 { margin: 0; font-size: 21px; }
.settings-banner-identity p { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin: 5px 0 0; color: #d8cbdf; font-size: 13px; }
.verified-chip { padding: 3px 7px; border-radius: 999px; color: #baf2d6; background: rgba(28, 166, 100, .2); font-size: 10px; font-weight: 800; }
.settings-banner-stat { min-width: 135px; padding-left: 22px; border-left: 1px solid rgba(255,255,255,.18); }
.settings-banner-stat span, .settings-banner-stat strong { display: block; }
.settings-banner-stat span { color: #cfc0d8; font-size: 11px; text-transform: uppercase; letter-spacing: .06em; }
.settings-banner-stat strong { margin-top: 5px; font-size: 15px; }

.settings-layout { display: grid; grid-template-columns: 250px minmax(0, 1fr); align-items: start; gap: 24px; }
.settings-sidebar { position: sticky; top: 98px; padding: 12px; border: 1px solid var(--settings-line); border-radius: 15px; background: #fff; box-shadow: 0 8px 24px rgba(45, 27, 61, .06); }
.settings-sidebar nav { display: grid; gap: 3px; }
.settings-sidebar nav a { display: flex; align-items: center; gap: 11px; padding: 11px 10px; border-radius: 10px; color: var(--settings-muted); text-decoration: none; }
.settings-sidebar nav a:hover, .settings-sidebar nav a.is-active { color: var(--settings-purple); background: #f4edf7; }
.settings-sidebar nav a > span { width: 20px; color: currentColor; text-align: center; }
.settings-sidebar strong, .settings-sidebar small { display: block; }
.settings-sidebar strong { font-size: 13px; }
.settings-sidebar small { margin-top: 2px; color: #8a7f90; font-size: 10px; }
.settings-sidebar-back { display: block; margin-top: 12px; padding: 13px 10px 5px; border-top: 1px solid var(--settings-line); color: var(--settings-purple); font-size: 12px; font-weight: 750; text-decoration: none; }

.settings-content { display: grid; gap: 18px; }
.settings-card { scroll-margin-top: 96px; padding: 26px; border: 1px solid var(--settings-line); border-radius: 16px; background: #fff; box-shadow: 0 10px 30px rgba(45, 27, 61, .055); }
.settings-card-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; margin-bottom: 23px; }
.settings-card-heading > div { display: grid; grid-template-columns: auto 1fr; column-gap: 10px; align-items: center; }
.section-number { grid-row: 1 / span 2; display: grid; width: 34px; height: 34px; place-items: center; border-radius: 10px; color: var(--settings-purple); background: #f2eaf6; font-size: 11px; font-weight: 850; }
.settings-card-heading h2 { margin: 0; font: 750 21px/1.2 Manrope, Inter, sans-serif; }
.settings-card-heading p { grid-column: 2; margin: 4px 0 0; color: var(--settings-muted); font-size: 12px; line-height: 1.45; }
.settings-field-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 17px; }
.settings-field-grid label > span { display: block; margin-bottom: 7px; font-size: 12px; font-weight: 780; }
.settings-field-grid input, .settings-field-grid select { width: 100%; min-height: 46px; padding: 10px 12px; border: 1px solid #cec4d5; border-radius: 9px; color: var(--settings-ink); background: #fff; font: inherit; font-size: 14px; outline: none; }
.settings-field-grid input:focus, .settings-field-grid select:focus { border-color: var(--settings-purple); box-shadow: 0 0 0 3px rgba(107,42,139,.11); }
.settings-field-grid input:disabled { color: #6d6373; background: #f4f1f6; }
.settings-field-grid small { display: block; margin-top: 6px; color: #877c8d; font-size: 10px; line-height: 1.4; }
.field-wide { grid-column: 1 / -1; }
.verified-input { position: relative; }
.verified-input input { padding-right: 90px; }
.verified-input > span { position: absolute; top: 50%; right: 12px; padding: 4px 7px; border-radius: 999px; color: var(--settings-success); background: #ddf4e8; font-size: 10px; font-weight: 800; transform: translateY(-50%); }
.settings-card-actions { display: flex; align-items: center; justify-content: flex-end; gap: 20px; margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--settings-line); }
.settings-card-actions > span { margin-right: auto; color: var(--settings-muted); font-size: 11px; }
.settings-primary-button, .settings-secondary-button, .settings-danger-button { min-height: 42px; padding: 9px 15px; border: 1px solid transparent; border-radius: 9px; font: inherit; font-size: 12px; font-weight: 800; cursor: pointer; }
.settings-primary-button { color: #fff; background: var(--settings-purple); }
.settings-primary-button:hover { background: var(--settings-purple-deep); }
.settings-secondary-button { border-color: #d2c7d9; color: var(--settings-ink); background: #fff; }
.settings-secondary-button:hover { border-color: #b9a8c4; background: var(--settings-soft); }
.settings-danger-button { border-color: #efc2c9; color: var(--settings-danger); background: #fff5f6; }
button:disabled { opacity: .55; cursor: not-allowed; }

.settings-choice-list { display: grid; }
.settings-choice-row { display: flex; align-items: center; justify-content: space-between; gap: 22px; padding: 15px 0; border-bottom: 1px solid var(--settings-line); cursor: pointer; }
.settings-choice-row:first-child { padding-top: 0; }
.settings-choice-row:last-child { border-bottom: 0; }
.settings-choice-row strong, .settings-choice-row small { display: block; }
.settings-choice-row strong { font-size: 13px; }
.settings-choice-row small { margin-top: 4px; color: var(--settings-muted); font-size: 11px; line-height: 1.4; }
.settings-choice-row input[role="switch"] { appearance: none; width: 42px; height: 24px; flex: 0 0 auto; border: 1px solid #bbb0c2; border-radius: 999px; background: #d8d1dc; cursor: pointer; transition: 150ms ease; }
.settings-choice-row input[role="switch"]::before { content: ""; display: block; width: 18px; height: 18px; margin: 2px; border-radius: 50%; background: #fff; box-shadow: 0 1px 4px rgba(45,27,61,.28); transition: transform 150ms ease; }
.settings-choice-row input[role="switch"]:checked { border-color: var(--settings-purple); background: var(--settings-purple); }
.settings-choice-row input[role="switch"]:checked::before { transform: translateX(18px); }
.settings-choice-row input[role="switch"]:focus-visible { outline: 3px solid rgba(107,42,139,.2); outline-offset: 2px; }
.essential-notice { margin: 17px 0 0; padding: 12px 14px; border-left: 3px solid var(--settings-orange); border-radius: 8px; color: #625768; background: #fff8f2; font-size: 11px; line-height: 1.5; }

.security-status { display: inline-flex; align-items: center; gap: 7px; color: var(--settings-success); font-size: 11px; font-weight: 800; }
.security-status i { width: 8px; height: 8px; border-radius: 50%; background: var(--settings-success); box-shadow: 0 0 0 4px #ddf4e8; }
.security-overview { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.security-overview > div { padding: 16px; border: 1px solid var(--settings-line); border-radius: 10px; background: var(--settings-soft); }
.security-overview span, .security-overview strong, .security-overview small { display: block; }
.security-overview span { color: var(--settings-muted); font-size: 10px; text-transform: uppercase; letter-spacing: .06em; }
.security-overview strong { margin-top: 6px; font-size: 13px; overflow-wrap: anywhere; }
.security-overview small { margin-top: 4px; color: var(--settings-muted); font-size: 10px; }
.sessions-heading { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-top: 25px; }
.sessions-heading h3 { margin: 0; font-size: 15px; }
.sessions-heading p { margin: 4px 0 0; color: var(--settings-muted); font-size: 11px; }
.settings-session-list { display: grid; gap: 8px; margin-top: 13px; }
.settings-session { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 12px; padding: 13px; border: 1px solid var(--settings-line); border-radius: 10px; }
.session-device-icon { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 10px; color: var(--settings-purple); background: #f2eaf6; font-size: 17px; }
.settings-session strong, .settings-session small { display: block; }
.settings-session strong { font-size: 12px; }
.settings-session small { margin-top: 3px; color: var(--settings-muted); font-size: 10px; }
.current-session-chip { padding: 4px 7px; border-radius: 999px; color: var(--settings-success); background: #ddf4e8; font-size: 9px; font-weight: 850; text-transform: uppercase; }

.settings-divider { height: 1px; margin: 25px 0; background: var(--settings-line); }
.data-action-grid { display: grid; gap: 10px; }
.data-action-grid article { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 15px; border: 1px solid var(--settings-line); border-radius: 10px; }
.data-action-grid h3 { margin: 0; font-size: 13px; }
.data-action-grid p { margin: 4px 0 0; color: var(--settings-muted); font-size: 11px; }
.data-action-grid .danger-action { border-color: #efd4d8; background: #fffafa; }
.settings-toast { position: fixed; right: 22px; bottom: 22px; z-index: 50; max-width: 360px; padding: 13px 16px; border-radius: 10px; color: #fff; background: var(--settings-ink); box-shadow: 0 14px 34px rgba(45,27,61,.26); font-size: 13px; font-weight: 700; }
.settings-toast.is-error { background: var(--settings-danger); }

@media (max-width: 900px) {
    .settings-layout { grid-template-columns: 1fr; }
    .settings-sidebar { position: static; overflow-x: auto; }
    .settings-sidebar nav { min-width: 760px; display: flex; }
    .settings-sidebar nav a { min-width: 140px; }
    .settings-sidebar-back { display: none; }
    .settings-profile-banner { grid-template-columns: auto minmax(0, 1fr); }
    .settings-banner-stat { padding: 14px 0 0; border-top: 1px solid rgba(255,255,255,.18); border-left: 0; }
}

@media (max-width: 620px) {
    .settings-page { width: min(100% - 24px, 1280px); padding: 34px 0 60px; }
    .settings-heading { align-items: flex-start; flex-direction: column; gap: 14px; }
    .settings-heading h1 { font-size: 42px; }
    .settings-heading p { font-size: 15px; }
    .settings-profile-banner { padding: 18px; gap: 14px; }
    .settings-avatar { width: 52px; height: 52px; border-radius: 14px; }
    .settings-banner-stat { min-width: 0; }
    .settings-card { padding: 20px 16px; }
    .settings-field-grid, .security-overview { grid-template-columns: 1fr; }
    .field-wide { grid-column: auto; }
    .settings-card-actions, .sessions-heading, .data-action-grid article { align-items: stretch; flex-direction: column; }
    .settings-card-actions > span { margin: 0; }
    .settings-primary-button, .settings-secondary-button, .settings-danger-button { width: 100%; }
    .settings-choice-row { gap: 13px; }
    .settings-toast { right: 12px; bottom: 12px; left: 12px; max-width: none; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { transition-duration: .01ms !important; }
}