:root {
    --bs-primary: #0f766e;
    --bs-body-bg: #f5efe6;
    --bs-body-color: #17232d;
    --bs-border-color: #d1c1ac;
    --bs-border-radius: 1rem;
    --bs-card-border-radius: 1.35rem;
    --bs-btn-border-radius: 0.95rem;
    --bs-font-sans-serif: "Segoe UI Variable Text", "Segoe UI", "Aptos", sans-serif;
    --bg: #f3ecdf;
    --panel: #fffdfa;
    --panel-alt: #f6efe4;
    --panel-strong: #ffffff;
    --text: #17232d;
    --muted: #52616d;
    --accent: #0f766e;
    --accent-strong: #0b5d57;
    --line: #d7c7b2;
    --line-strong: #c0ad94;
    --shadow: 0 20px 44px rgba(23, 35, 45, 0.08);
    --shadow-soft: 0 12px 24px rgba(23, 35, 45, 0.06);
    --focus: 0 0 0 0.24rem rgba(15, 118, 110, 0.16);
    --radius: 1.35rem;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-size: 16px;
    line-height: 1.6;
    background:
        radial-gradient(circle at top left, rgba(15, 118, 110, 0.08), transparent 24rem),
        linear-gradient(180deg, #fbf8f2, var(--bg));
    color: var(--text);
}

.toast-region {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 2000;
    width: min(26rem, calc(100vw - 1.5rem));
    pointer-events: none;
}

.toast-stack {
    display: grid;
    gap: 0.75rem;
}

.site-toast {
    display: grid;
    grid-template-columns: 0.28rem minmax(0, 1fr) auto;
    align-items: start;
    overflow: hidden;
    border: 1px solid rgba(192, 173, 148, 0.78);
    border-radius: 1rem;
    background: rgba(255, 253, 250, 0.96);
    box-shadow: 0 20px 42px rgba(23, 35, 45, 0.14);
    backdrop-filter: blur(14px);
    pointer-events: auto;
    transform: translateY(0);
    opacity: 1;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.site-toast.is-hiding {
    opacity: 0;
    transform: translateY(-0.35rem);
}

.toast-accent {
    min-height: 100%;
    background: var(--accent);
}

.toast-content {
    padding: 0.9rem 0.4rem 0.9rem 1rem;
}

.toast-title {
    margin: 0 0 0.18rem;
    font-size: 0.94rem;
    font-weight: 800;
    letter-spacing: -0.01em;
}

.toast-message {
    margin: 0;
    color: var(--muted);
    font-size: 0.95rem;
    line-height: 1.45;
}

.toast-close {
    border: 0;
    background: transparent;
    color: var(--muted);
    cursor: pointer;
    font-size: 1.35rem;
    line-height: 1;
    padding: 0.85rem 0.95rem 0.65rem 0.5rem;
    border-radius: 0.85rem;
}

.toast-close:hover {
    color: var(--text);
}

.toast-success .toast-accent {
    background: linear-gradient(180deg, #1f9d72 0%, #0f766e 100%);
}

.toast-success .toast-title {
    color: #0f5c50;
}

.toast-info .toast-accent {
    background: linear-gradient(180deg, #2563eb 0%, #1d4ed8 100%);
}

.toast-info .toast-title {
    color: #1d4ed8;
}

.toast-warning .toast-accent {
    background: linear-gradient(180deg, #f59e0b 0%, #d97706 100%);
}

.toast-warning .toast-title {
    color: #b45309;
}

.toast-error .toast-accent {
    background: linear-gradient(180deg, #e11d48 0%, #be123c 100%);
}

.toast-error .toast-title {
    color: #be123c;
}

a {
    color: inherit;
    text-decoration: none;
}

pre {
    overflow-x: auto;
    background: #112130;
    color: #ecf4ff;
    padding: 1rem;
    border-radius: 1rem;
}

code {
    font-family: Consolas, "Courier New", monospace;
}

input,
select,
button,
textarea {
    font: inherit;
}

input:focus-visible,
select:focus-visible,
textarea:focus-visible,
button:focus-visible,
a:focus-visible {
    outline: none;
    box-shadow: var(--focus);
}

kbd {
    background: var(--panel-alt);
    border: 1px solid var(--line-strong);
    border-bottom-width: 2px;
    border-radius: 0.45rem;
    padding: 0.1rem 0.35rem;
}

.page-shell {
    padding-top: 1.75rem;
    padding-bottom: 4rem;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 1040;
    backdrop-filter: blur(14px);
    background: rgba(251, 248, 242, 0.92);
    border-bottom: 1px solid rgba(215, 199, 178, 0.9);
}

.brand-ribbon {
    background: linear-gradient(90deg, #0f766e 0%, #155e75 100%);
    color: rgba(255, 255, 255, 0.96);
    font-size: 0.92rem;
}

.brand-ribbon .container-xxl {
    padding-top: 0.42rem;
    padding-bottom: 0.42rem;
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}

.brand-ribbon-text {
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.brand-ribbon-copy {
    opacity: 0.9;
}

.navbar {
    --bs-navbar-padding-y: 0.25rem;
}

.navbar-brand {
    margin-right: 1.5rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.9rem;
}

.navbar-brand strong {
    display: block;
    font-size: 1.06rem;
    letter-spacing: -0.02em;
}

.brand small {
    display: block;
    margin-top: 0.12rem;
    color: var(--muted);
    font-size: 0.88rem;
}

.brand-logo {
    display: block;
    width: auto;
    max-width: min(300px, 58vw);
    height: 3.75rem;
}

.navbar-toggler {
    border: 1px solid var(--line-strong);
    border-radius: 0.95rem;
    padding: 0.55rem 0.75rem;
}

.tabs {
    gap: 0.45rem;
    align-items: stretch;
}

.tabs .nav-link {
    padding: 0.8rem 0.95rem 0.72rem;
    border-radius: 0.9rem 0.9rem 0 0;
    border-bottom: 4px solid transparent;
    color: var(--muted);
    font-weight: 700;
    transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.tabs .nav-link:hover {
    background: rgba(255, 255, 255, 0.72);
    color: var(--accent-strong);
}

.tabs .nav-link.active {
    background: var(--panel-strong);
    color: var(--accent-strong);
    border-bottom-color: var(--accent);
    box-shadow: inset 0 -1px 0 rgba(255, 255, 255, 0.65);
}

.nav-meta {
    align-items: center;
}

.nav-meta .nav-link {
    color: var(--muted);
    font-weight: 600;
}

.nav-user {
    color: var(--muted);
    padding: 0 0.35rem;
    font-weight: 600;
}

.nav-logout {
    margin: 0;
}

.subject-tabs {
    display: flex;
    gap: 0.65rem;
    flex-wrap: nowrap;
    overflow-x: auto;
    padding: 0 0 1rem;
    scrollbar-width: auto;
    scrollbar-color: rgba(15, 118, 110, 0.48) rgba(220, 210, 195, 0.72);
}

.subject-tabs::-webkit-scrollbar {
    height: 0.7rem;
}

.subject-tabs::-webkit-scrollbar-track {
    background: rgba(220, 210, 195, 0.72);
    border-radius: 999px;
}

.subject-tabs::-webkit-scrollbar-thumb {
    background: linear-gradient(90deg, rgba(15, 118, 110, 0.82) 0%, rgba(21, 94, 117, 0.82) 100%);
    border-radius: 999px;
    border: 2px solid rgba(251, 248, 242, 0.92);
}

.subject-tabs::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(90deg, rgba(13, 102, 94, 0.92) 0%, rgba(17, 78, 98, 0.92) 100%);
}

.subject-tabs a {
    white-space: nowrap;
    padding: 0.65rem 0.95rem;
    border-radius: 999px;
    border: 1px solid transparent;
    color: var(--muted);
    font-weight: 600;
}

.subject-tabs a.active,
.subject-tabs a:hover {
    background: var(--panel-strong);
    color: var(--accent-strong);
    border-color: var(--line);
}

.hero,
.panel,
.detail-header {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.hero h1,
.detail-header h1 {
    margin: 0.25rem 0 0.75rem;
    font-size: clamp(2rem, 5vw, 3.2rem);
    line-height: 1.04;
    letter-spacing: -0.03em;
}

.eyebrow {
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    font-size: 0.78rem;
    color: var(--accent);
    font-weight: 700;
}

.lede,
.detail-header p {
    margin: 0;
    color: var(--muted);
    max-width: 60ch;
    font-size: 1.02rem;
}

.search-panel {
    padding: 1.2rem;
    margin-bottom: 1rem;
    background:
        radial-gradient(circle at top right, rgba(21, 94, 117, 0.08), transparent 18rem),
        linear-gradient(180deg, #fffefb 0%, #fbf7ef 100%);
}

.search-bar-shell {
    display: grid;
    gap: 0.85rem;
}

.search-bar-copy {
    display: grid;
    gap: 0.35rem;
}

.search-header-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    flex-wrap: wrap;
}

.search-panel-title {
    margin: 0;
    font-size: clamp(1.8rem, 4vw, 2.7rem);
    line-height: 1.04;
    letter-spacing: -0.03em;
}

.search-helper {
    margin: 0;
    color: var(--muted);
    max-width: 62ch;
    font-size: 1rem;
}

.search-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 0.85rem;
    align-items: end;
}

.search-input {
    display: grid;
    gap: 0.4rem;
}

.search-label {
    font-size: 0.87rem;
    color: var(--muted);
    font-weight: 700;
    letter-spacing: 0.02em;
}

.search-input .form-control {
    font-size: 1.06rem;
    min-height: 3.3rem;
    border-radius: 1.15rem;
    border-color: var(--line-strong);
    background: var(--panel-strong);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.74);
}

.search-input .form-control::placeholder {
    color: #72818c;
}

.search-actions {
    display: flex;
    gap: 0.7rem;
    align-items: center;
    flex-wrap: wrap;
}

.advanced-toggle {
    min-height: 2.9rem;
    border-radius: 999px;
    font-weight: 600;
    white-space: nowrap;
}

.search-live-note {
    margin: 0;
    color: var(--muted);
    font-size: 0.94rem;
}

#advanced-search-panel {
    margin-top: 0.9rem;
    padding-top: 0.95rem;
    border-top: 1px solid rgba(192, 173, 148, 0.55);
}

.btn-search {
    min-height: 3.3rem;
    border-radius: 1.15rem;
    font-weight: 700;
}

.btn-primary-brand {
    background: linear-gradient(180deg, #14867d 0%, #0f766e 100%);
    border: 1px solid #0b5d57;
    color: #fff;
    font-weight: 700;
}

.btn-primary-brand:hover,
.btn-primary-brand:focus-visible {
    color: #fff;
    background: linear-gradient(180deg, #0f766e 0%, #0b5d57 100%);
    border-color: #094b47;
}

.filters {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0.85rem;
    margin-top: 1.05rem;
}

.filters label span {
    display: block;
    font-size: 0.85rem;
    color: var(--muted);
    margin-bottom: 0.35rem;
    font-weight: 600;
}

.filters .form-select {
    min-height: 3.3rem;
    border-radius: 1.15rem;
    border-color: var(--line-strong);
    background-color: var(--panel-strong);
    box-shadow: none;
}

.checkbox {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    padding: 1.2rem 0.85rem 0;
    border-radius: 1.15rem;
    background: rgba(255, 255, 255, 0.46);
    border: 1px solid transparent;
}

.checkbox .form-check-input {
    width: 1.1rem;
    height: 1.1rem;
    margin-top: 0;
    border-color: var(--line-strong);
}

.checkbox span {
    margin: 0;
}

.button,
.icon-button,
.mini-button {
    border: 0;
    cursor: pointer;
    border-radius: 0.9rem;
    padding: 0.82rem 1rem;
    font-weight: 600;
    min-height: 2.9rem;
    transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.button {
    background: var(--accent);
    color: #fff;
}

.button.secondary {
    background: var(--panel-strong);
    color: var(--text);
    border: 1px solid var(--line-strong);
}

.icon-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--panel-alt);
    color: var(--text);
    border: 1px solid var(--line-strong);
}

.icon-button.is-active {
    background: #ffedd5;
    color: #9a3412;
}

.mini-button {
    background: var(--panel-alt);
    color: var(--muted);
    padding: 0.45rem 0.7rem;
    border: 1px solid var(--line-strong);
    min-height: 2.5rem;
}

.mini-button.selected,
.mini-button:hover,
.button:hover,
.icon-button:hover {
    transform: translateY(-1px);
}

.link-button {
    border: 0;
    background: transparent;
    color: var(--muted);
    cursor: pointer;
    font: inherit;
    padding: 0.65rem 0.9rem;
    border-radius: 999px;
}

.link-button:hover {
    background: var(--panel);
    color: var(--accent-strong);
    box-shadow: var(--shadow-soft);
}

.results-shell {
    display: grid;
    gap: 1rem;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.results-header h2 {
    margin: 0.35rem 0 0;
}

.card-stack {
    display: grid;
    gap: 1rem;
}

.content-card {
    padding: 1.25rem;
    background: linear-gradient(180deg, #fffefb 0%, #fcf7ef 100%);
    border-color: var(--line-strong);
    content-visibility: auto;
    contain-intrinsic-size: 340px;
}

.recall-card {
    position: relative;
    overflow: hidden;
}

.recall-card::before {
    content: "";
    position: absolute;
    inset: 0 auto 0 0;
    width: 5px;
    background: linear-gradient(180deg, var(--accent) 0%, var(--accent-strong) 100%);
}

.card-topline,
.practice-header,
.practice-actions,
.confidence-row,
.pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.meta-group,
.tag-row,
.confidence-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.pill,
.tag {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.42rem 0.75rem;
    border-radius: 999px;
    background: var(--panel-alt);
    border: 1px solid var(--line-strong);
    color: var(--accent-strong);
    font-size: 0.86rem;
    font-weight: 700;
}

.pill.muted,
.tag.empty {
    color: var(--muted);
}

.card-title {
    margin: 0.55rem 0 0.4rem;
    font-size: clamp(1.3rem, 2.5vw, 1.55rem);
    line-height: 1.22;
    letter-spacing: -0.02em;
}

.card-title a:hover {
    color: var(--accent-strong);
}

.summary {
    font-size: 1.08rem;
    font-weight: 700;
    line-height: 1.45;
    margin: 0.4rem 0 0.9rem;
    max-width: 58ch;
}

.memory-panel,
.prompt-panel {
    background: rgba(255, 255, 255, 0.88);
    border: 1px solid var(--line-strong);
    border-radius: 1rem;
    padding: 0.95rem 1rem;
    margin-bottom: 1rem;
}

.memory-panel {
    background: linear-gradient(180deg, #f4fbfa 0%, #edf6f4 100%);
    border-left: 4px solid var(--accent);
}

.memory-points {
    margin: 0;
    padding-left: 1.15rem;
    color: var(--text);
}

.memory-points li {
    margin-bottom: 0.45rem;
}

.memory-points li:last-child {
    margin-bottom: 0;
}

.recall-body {
    color: #22323f;
    margin-bottom: 1rem;
    max-width: 72ch;
}

.recall-body p {
    margin: 0;
}

.revealed {
    margin-top: 1rem;
    border-top: 1px solid var(--line);
    padding-top: 1rem;
}

.answer-block + .answer-block {
    margin-top: 1rem;
}

.complexity-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    color: var(--muted);
}

.revision-note,
.back-link {
    color: var(--muted);
    font-size: 0.92rem;
}

.practice-card {
    padding: 1.4rem;
}

.practice-card h2 {
    margin: 0.2rem 0 0;
    font-size: clamp(1.55rem, 3vw, 2rem);
    line-height: 1.2;
}

.detail-header {
    padding: 1.6rem;
    margin-bottom: 1rem;
}

.empty-state {
    padding: 2rem;
    text-align: center;
}

.pagination {
    margin-top: 1rem;
    justify-content: center;
}

.pagination a {
    padding: 0.65rem 0.9rem;
    border: 1px solid var(--line-strong);
    border-radius: 999px;
    background: var(--panel-strong);
    min-height: 2.75rem;
    display: inline-flex;
    align-items: center;
}

.site-footer {
    border-top: 1px solid rgba(215, 199, 178, 0.92);
    background: rgba(255, 252, 246, 0.86);
    padding: 1.25rem 0 2.25rem;
}

.footer-grid {
    display: flex;
    justify-content: space-between;
    gap: 1.25rem;
    align-items: flex-start;
    flex-wrap: wrap;
}

.footer-brand-block {
    display: grid;
    gap: 0.6rem;
}

.footer-logo {
    display: block;
    width: auto;
    max-width: min(260px, 70vw);
    height: 4rem;
}

.footer-copy {
    margin: 0;
    color: var(--muted);
    max-width: 48ch;
}

.footer-tagline {
    margin: 0;
    color: var(--accent-strong);
    font-weight: 700;
    letter-spacing: -0.01em;
}

.footer-links {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    color: var(--muted);
    font-weight: 600;
}

.footer-link-group {
    display: grid;
    gap: 0.45rem;
    min-width: 12rem;
}

.footer-link-heading {
    margin: 0;
    color: var(--text);
    font-weight: 800;
    letter-spacing: -0.01em;
}

.footer-links a:hover {
    color: var(--accent-strong);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.stack {
    display: grid;
    gap: 0.9rem;
}

.checkbox-list {
    display: grid;
    gap: 0.55rem;
}

.checkbox-list label {
    display: flex;
    gap: 0.55rem;
    align-items: flex-start;
}

.auth-card {
    width: min(520px, 100%);
    margin: 2rem auto 0;
    padding: 1.6rem;
}

.auth-card h1 {
    margin: 0.3rem 0 0.75rem;
    font-size: clamp(1.85rem, 4vw, 2.35rem);
    line-height: 1.08;
    letter-spacing: -0.03em;
}

.auth-card .lede {
    margin-bottom: 1.15rem;
}

.social-auth-block {
    display: grid;
    gap: 0.9rem;
    margin: 1.25rem 0 1.15rem;
}

.social-auth-button {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 0.85rem;
    align-items: center;
    padding: 0.95rem 1rem;
    border-radius: 1.15rem;
    border: 1px solid rgba(23, 35, 45, 0.12);
    background: linear-gradient(180deg, #ffffff 0%, #fbf7ef 100%);
    box-shadow: 0 16px 30px rgba(23, 35, 45, 0.08);
    transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.social-auth-button:hover,
.social-auth-button:focus-visible {
    transform: translateY(-1px);
    border-color: rgba(15, 118, 110, 0.26);
    box-shadow: 0 22px 34px rgba(23, 35, 45, 0.12);
}

.social-auth-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    border-radius: 0.95rem;
    background: #fff;
    border: 1px solid rgba(215, 199, 178, 0.72);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.92);
}

.social-auth-copy {
    display: grid;
    gap: 0.12rem;
}

.social-auth-copy strong {
    color: var(--text);
    font-size: 1rem;
    letter-spacing: -0.01em;
}

.social-auth-copy small {
    color: var(--muted);
    font-size: 0.9rem;
}

.auth-divider {
    display: flex;
    align-items: center;
    gap: 0.9rem;
    color: var(--muted);
    font-size: 0.88rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 700;
}

.auth-divider::before,
.auth-divider::after {
    content: "";
    height: 1px;
    flex: 1;
    background: linear-gradient(90deg, rgba(192, 173, 148, 0) 0%, rgba(192, 173, 148, 0.8) 100%);
}

.auth-divider::after {
    background: linear-gradient(90deg, rgba(192, 173, 148, 0.8) 0%, rgba(192, 173, 148, 0) 100%);
}

.auth-form {
    display: grid;
    gap: 1rem;
}

.auth-form p {
    display: grid;
    gap: 0.35rem;
    margin: 0;
}

.auth-form ul.errorlist {
    list-style: none;
    margin: 0;
    padding: 0;
    color: #b42318;
    font-size: 0.92rem;
    font-weight: 600;
}

.auth-form .helptext {
    color: var(--muted);
    font-size: 0.9rem;
}

.auth-form input,
.auth-form select,
.auth-form textarea {
    width: 100%;
    border-radius: 1rem;
    border: 1px solid var(--line);
    background: #fff;
    padding: 0.9rem 1rem;
    font-size: 1rem;
}

.auth-actions {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
}

.auth-helper-links {
    display: flex;
    justify-content: space-between;
    gap: 0.85rem;
    flex-wrap: wrap;
    color: var(--muted);
    font-size: 0.95rem;
}

.auth-helper-links a:hover {
    color: var(--accent-strong);
}

.auth-support-note,
.auth-status-note,
.auth-callout {
    margin: 0;
    padding: 0.95rem 1rem;
    border-radius: 1rem;
    border: 1px solid rgba(15, 118, 110, 0.16);
    background: rgba(255, 255, 255, 0.78);
    color: var(--muted);
}

.auth-status-note strong,
.auth-callout strong {
    color: var(--text);
}

.auth-checklist {
    display: grid;
    gap: 0.45rem;
    margin: 0;
    padding-left: 1.1rem;
    color: var(--muted);
}

.auth-checklist li {
    padding-left: 0.1rem;
}

.auth-stack {
    display: grid;
    gap: 1rem;
}

.auth-inline-link {
    color: var(--accent-strong);
    font-weight: 600;
}

.auth-inline-link:hover {
    color: var(--accent);
}

.contact-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(18rem, 0.9fr);
    gap: 1rem;
    align-items: start;
}

.contact-panel,
.contact-side-panel {
    padding: 1.35rem;
}

.contact-form {
    display: grid;
    gap: 1rem;
}

.contact-form label {
    display: grid;
    gap: 0.42rem;
}

.contact-form label span {
    font-size: 0.9rem;
    color: var(--text);
    font-weight: 700;
}

.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form input[type="file"],
.contact-form textarea {
    width: 100%;
    border-radius: 1rem;
    border: 1px solid var(--line-strong);
    background: var(--panel-strong);
    padding: 0.95rem 1rem;
    font-size: 1rem;
    color: var(--text);
}

.contact-form input[type="file"] {
    padding: 0.8rem 0.9rem;
    background: linear-gradient(180deg, #fffefb 0%, #f8f3ea 100%);
}

.contact-form textarea {
    min-height: 12rem;
    resize: vertical;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.9rem;
}

.contact-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.field-help {
    color: var(--muted);
    font-size: 0.92rem;
}

.field-error {
    color: #b42318;
    font-size: 0.92rem;
    font-weight: 600;
}

.contact-side-panel h2 {
    margin: 0.3rem 0 0.8rem;
    font-size: clamp(1.35rem, 2.4vw, 1.65rem);
    line-height: 1.2;
}

.whatsapp-button {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    margin-top: 1rem;
    padding: 0.95rem 1rem;
    border: 1px solid rgba(22, 163, 74, 0.22);
    border-radius: 1.1rem;
    background: linear-gradient(180deg, #f3fff8 0%, #e8fbf0 100%);
    color: #0f5a32;
    text-decoration: none;
    box-shadow: 0 16px 32px rgba(22, 163, 74, 0.12);
    transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.whatsapp-button:hover,
.whatsapp-button:focus-visible {
    transform: translateY(-1px);
    border-color: rgba(22, 163, 74, 0.38);
    box-shadow: 0 20px 36px rgba(22, 163, 74, 0.18);
    color: #0b4f2b;
}

.whatsapp-button-badge {
    width: 2.8rem;
    height: 2.8rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    background: linear-gradient(180deg, #22c55e 0%, #16a34a 100%);
    color: #fff;
    font-size: 0.92rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    flex-shrink: 0;
}

.whatsapp-button-copy {
    display: grid;
    gap: 0.15rem;
}

.whatsapp-button-copy strong {
    font-size: 1rem;
    line-height: 1.1;
}

.whatsapp-button-copy small {
    color: rgba(15, 90, 50, 0.82);
    font-size: 0.9rem;
}

.settings-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.45fr) minmax(18rem, 0.8fr);
    gap: 1rem;
    align-items: start;
}

.settings-panel,
.settings-side-panel {
    padding: 1.4rem;
}

.settings-form {
    display: grid;
    gap: 1.1rem;
}

.settings-section {
    display: grid;
    gap: 1rem;
    padding: 1.1rem;
    border: 1px solid rgba(192, 173, 148, 0.65);
    border-radius: 1.1rem;
    background: linear-gradient(180deg, #fffefb 0%, #fbf7ef 100%);
}

.settings-section h2 {
    margin: 0.2rem 0 0;
    font-size: clamp(1.25rem, 2.2vw, 1.55rem);
    line-height: 1.2;
}

.settings-section-copy {
    display: grid;
    gap: 0.35rem;
}

.settings-field {
    display: grid;
    gap: 0.45rem;
}

.settings-label {
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--text);
}

.settings-select {
    min-height: 3.2rem;
    border-radius: 1rem;
    border-color: var(--line-strong);
    background: var(--panel-strong);
    box-shadow: none;
}

.settings-help {
    margin: 0;
    color: var(--muted);
    font-size: 0.94rem;
}

.settings-category-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.85rem;
}

.settings-check-card {
    display: block;
    padding: 1rem;
    border: 1px solid rgba(192, 173, 148, 0.7);
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.85);
    cursor: pointer;
    transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.settings-check-card:hover {
    transform: translateY(-1px);
    border-color: var(--accent);
    box-shadow: var(--shadow-soft);
}

.settings-check-main {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
}

.settings-check-main input {
    width: 1.1rem;
    height: 1.1rem;
    margin-top: 0.18rem;
    accent-color: var(--accent);
}

.settings-check-copy {
    display: grid;
    gap: 0.16rem;
}

.settings-check-copy strong {
    color: var(--text);
    font-size: 0.98rem;
}

.settings-check-copy small {
    color: var(--muted);
    font-size: 0.9rem;
}

.settings-toggle-list {
    display: grid;
    gap: 0.8rem;
}

.settings-toggle {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: flex-start;
    padding: 1rem;
    border-radius: 1rem;
    border: 1px solid rgba(192, 173, 148, 0.7);
    background: rgba(255, 255, 255, 0.82);
    cursor: pointer;
}

.settings-toggle-copy {
    display: grid;
    gap: 0.16rem;
}

.settings-toggle-copy strong {
    color: var(--text);
}

.settings-toggle-copy small {
    color: var(--muted);
}

.settings-toggle-input,
.settings-toggle input {
    width: 1.2rem;
    height: 1.2rem;
    margin-top: 0.15rem;
    accent-color: var(--accent);
    flex: 0 0 auto;
}

.settings-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.settings-side-panel {
    display: grid;
    gap: 1rem;
    background: linear-gradient(180deg, #fbfffe 0%, #f2f8f7 100%);
}

.settings-side-panel h2 {
    margin: 0;
    font-size: clamp(1.3rem, 2.4vw, 1.6rem);
    line-height: 1.2;
}

.info-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.55fr) minmax(18rem, 0.85fr);
    gap: 1rem;
    align-items: start;
}

.prose-panel,
.info-side-panel {
    padding: 1.4rem;
}

.prose-panel p + p,
.content-section p + p {
    margin-top: 0.85rem;
}

.content-section + .content-section {
    margin-top: 1.55rem;
    padding-top: 1.55rem;
    border-top: 1px solid rgba(192, 173, 148, 0.55);
}

.content-section h2 {
    margin: 0 0 0.75rem;
    font-size: clamp(1.25rem, 2.3vw, 1.65rem);
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.policy-list,
.policy-steps {
    margin: 0.85rem 0 0;
    padding-left: 1.25rem;
}

.policy-list li,
.policy-steps li {
    margin-bottom: 0.5rem;
}

.policy-list li:last-child,
.policy-steps li:last-child {
    margin-bottom: 0;
}

.info-side-panel {
    display: grid;
    gap: 1rem;
    background: linear-gradient(180deg, #fbfffe 0%, #f2f8f7 100%);
}

.info-side-panel h2,
.info-side-panel h3 {
    margin: 0;
    font-size: 1.2rem;
    line-height: 1.2;
}

.info-side-panel p,
.info-side-panel ul {
    margin: 0;
}

.info-note {
    padding: 1rem;
    border-radius: 1rem;
    border: 1px solid rgba(15, 118, 110, 0.18);
    background: rgba(255, 255, 255, 0.78);
}

.policy-meta {
    color: var(--muted);
    font-size: 0.94rem;
}

.legal-contact {
    display: grid;
    gap: 0.45rem;
}

@media (max-width: 992px) {
    .navbar-collapse {
        padding-top: 0.85rem;
    }

    .tabs .nav-link {
        border-radius: 0.95rem;
        border-bottom-width: 0;
    }

    .nav-meta {
        align-items: stretch !important;
        gap: 0.4rem;
    }

    .contact-layout,
    .info-layout,
    .settings-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 900px) {
    .filters {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .search-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .toast-region {
        top: 0.75rem;
        right: 0.75rem;
        left: 0.75rem;
        width: auto;
    }

    .page-shell {
        padding-top: 1.2rem;
    }

    .hero,
    .detail-header,
    .content-card,
    .practice-card,
    .search-panel {
        padding: 1rem;
    }

    .filters {
        grid-template-columns: 1fr;
    }

    .card-topline,
    .practice-header,
    .practice-actions,
    .confidence-row {
        align-items: stretch;
    }

    .search-actions,
    .practice-actions,
    .contact-actions {
        display: grid;
        grid-template-columns: 1fr;
    }

    .button,
    .button.secondary,
    .icon-button,
    .btn-search,
    .btn-primary-brand,
    .advanced-toggle,
    .whatsapp-button {
        width: 100%;
        justify-content: center;
    }

    .subject-tabs {
        padding-bottom: 0.75rem;
    }

    .brand-ribbon .container-xxl,
    .footer-grid {
        display: grid;
    }

    .brand-logo {
        max-width: min(240px, 64vw);
        height: auto;
    }

    .footer-logo {
        max-width: min(220px, 68vw);
        height: auto;
    }

    .nav-meta .nav-link,
    .link-button {
        padding-left: 0;
        padding-right: 0;
    }

    .search-header-row {
        display: grid;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .settings-category-grid {
        grid-template-columns: 1fr;
    }

    .settings-toggle,
    .settings-actions {
        display: grid;
    }
}