@import url("https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@500;600;700;800&display=swap");

:root {
    --ink: #191629;
    --ink-soft: #4d4960;
    --paper: #fffaf0;
    --paper-deep: #f5eddf;
    --white: #ffffff;
    --navy: #130d26;
    --navy-soft: #20163a;
    --gold: #f4ae0c;
    --gold-light: #f8c744;
    --orange: #e74418;
    --teal: #238b8c;
    --cyan: #56ced4;
    --border: rgba(25, 22, 41, 0.14);
    --radius-sm: 12px;
    --radius-md: 22px;
    --radius-lg: 36px;
    --shadow: 0 28px 70px rgba(19, 13, 38, 0.16);
    --shell: min(1180px, calc(100% - 40px));
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 96px;
}

body {
    margin: 0;
    color: var(--ink);
    background: var(--paper);
    font-family: "DM Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 16px;
    line-height: 1.65;
    text-rendering: optimizeLegibility;
}

body::selection {
    color: var(--navy);
    background: var(--gold-light);
}

img {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
}

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

button,
select {
    cursor: pointer;
}

h1,
h2,
h3,
p {
    margin-top: 0;
}

h1,
h2,
h3 {
    font-family: "Manrope", system-ui, sans-serif;
    line-height: 1.08;
    letter-spacing: -0.045em;
}

h1 {
    max-width: 820px;
    margin-bottom: 26px;
    font-size: clamp(3rem, 7vw, 6.5rem);
    font-weight: 800;
}

h2 {
    margin-bottom: 22px;
    font-size: clamp(2.2rem, 4.6vw, 4.6rem);
    font-weight: 800;
}

h3 {
    font-size: clamp(1.3rem, 2vw, 1.85rem);
}

.shell {
    width: var(--shell);
    margin-inline: auto;
}

.section {
    position: relative;
    padding: clamp(84px, 11vw, 154px) 0;
    overflow: clip;
}

.section-light {
    background: var(--paper);
}

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

.skip-link {
    position: fixed;
    z-index: 999;
    top: 10px;
    left: 10px;
    padding: 10px 16px;
    color: var(--white);
    background: var(--navy);
    border-radius: 8px;
    transform: translateY(-150%);
}

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

.site-header {
    position: fixed;
    z-index: 50;
    inset: 0 0 auto;
    height: 90px;
    color: var(--white);
    transition: background 180ms ease, box-shadow 180ms ease, height 180ms ease;
}

.site-header.is-scrolled {
    height: 74px;
    background: rgba(19, 13, 38, 0.92);
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.18);
    backdrop-filter: blur(18px);
}

.nav-wrap {
    display: flex;
    height: 100%;
    align-items: center;
    gap: 26px;
}

.brand {
    display: block;
    flex: 0 0 auto;
    width: 124px;
}

.brand img {
    width: 100%;
    height: 64px;
    object-fit: contain;
    object-position: left center;
}

.primary-nav {
    display: flex;
    margin-left: auto;
    align-items: center;
    gap: 26px;
}

.primary-nav a {
    position: relative;
    color: rgba(255, 255, 255, 0.86);
    font-size: 0.9rem;
    font-weight: 700;
    text-decoration: none;
}

.primary-nav a::after {
    position: absolute;
    right: 0;
    bottom: -8px;
    left: 0;
    height: 2px;
    background: var(--gold);
    content: "";
    transform: scaleX(0);
    transition: transform 160ms ease;
}

.primary-nav a:hover::after,
.primary-nav a:focus-visible::after {
    transform: scaleX(1);
}

.language-control {
    position: relative;
}

.language-control select {
    min-width: 120px;
    padding: 9px 36px 9px 13px;
    color: var(--white);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.28);
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 700;
}

.language-control option {
    color: var(--ink);
    background: var(--white);
}

.menu-toggle {
    display: none;
    width: 46px;
    height: 46px;
    margin-left: auto;
    padding: 0;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
}

.menu-toggle span:not(.sr-only) {
    display: block;
    width: 18px;
    height: 2px;
    margin: 5px auto;
    background: var(--white);
}

.hero {
    min-height: 820px;
    padding-top: 160px;
    color: var(--white);
    background:
        radial-gradient(circle at 16% 20%, rgba(244, 174, 12, 0.2), transparent 32%),
        radial-gradient(circle at 78% 26%, rgba(35, 139, 140, 0.24), transparent 28%),
        linear-gradient(135deg, #18102c 0%, #0e091d 62%, #1a0e20 100%);
}

.hero::after {
    position: absolute;
    right: -10%;
    bottom: -22%;
    width: 660px;
    height: 660px;
    background: var(--orange);
    border-radius: 50%;
    content: "";
    filter: blur(4px);
    opacity: 0.12;
}

.hero-rays {
    position: absolute;
    inset: 0;
    opacity: 0.14;
    background: repeating-conic-gradient(from 245deg at 66% 50%, var(--gold) 0 2deg, transparent 2deg 10deg);
    mask-image: radial-gradient(circle at 66% 50%, black 0, transparent 65%);
}

.hero-grid {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(360px, 0.85fr);
    align-items: center;
    gap: clamp(50px, 8vw, 110px);
}

.eyebrow {
    margin-bottom: 20px;
    color: var(--orange);
    font-family: "Manrope", sans-serif;
    font-size: 0.77rem;
    font-weight: 800;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.hero .eyebrow,
.join-section .eyebrow,
.contact-section .eyebrow {
    color: var(--gold-light);
}

.hero-intro {
    max-width: 680px;
    margin-bottom: 34px;
    color: rgba(255, 255, 255, 0.76);
    font-size: clamp(1.08rem, 1.7vw, 1.3rem);
}

.button-row {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.button {
    display: inline-flex;
    min-height: 52px;
    padding: 0 24px;
    align-items: center;
    justify-content: center;
    border: 1px solid transparent;
    border-radius: 999px;
    font-family: "Manrope", sans-serif;
    font-size: 0.9rem;
    font-weight: 800;
    text-decoration: none;
    cursor: pointer;
    transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover {
    transform: translateY(-2px);
}

.button-primary {
    color: var(--navy);
    background: linear-gradient(135deg, var(--gold-light), var(--gold));
    box-shadow: 0 14px 34px rgba(244, 174, 12, 0.2);
}

.button-primary:hover {
    box-shadow: 0 18px 40px rgba(244, 174, 12, 0.3);
}

.button-ghost {
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.04);
}

.button-dark {
    color: var(--white);
    background: var(--navy);
}

.hero-notes {
    display: flex;
    margin: 44px 0 0;
    padding: 0;
    flex-wrap: wrap;
    gap: 24px;
    color: rgba(255, 255, 255, 0.68);
    font-size: 0.82rem;
    font-weight: 700;
    list-style: none;
}

.hero-notes li {
    display: flex;
    align-items: center;
    gap: 9px;
}

.hero-notes li::before {
    width: 7px;
    height: 7px;
    background: var(--teal);
    border-radius: 50%;
    content: "";
}

.hero-art {
    position: relative;
    display: grid;
    min-height: 540px;
    place-items: center;
}

.hero-logo {
    position: absolute;
    z-index: 1;
    top: -60px;
    left: -70px;
    width: min(430px, 90%);
    opacity: 0.16;
    transform: rotate(-8deg);
}

.concert-poster {
    position: relative;
    z-index: 2;
    width: min(390px, 100%);
    min-height: 500px;
    padding: 54px 44px;
    color: var(--navy);
    background:
        linear-gradient(160deg, rgba(255, 255, 255, 0.4), transparent 45%),
        var(--gold);
    border-radius: 8px;
    box-shadow: 30px 34px 0 rgba(35, 139, 140, 0.75), var(--shadow);
    transform: rotate(3deg);
}

.concert-poster::before,
.concert-poster::after {
    position: absolute;
    width: 95px;
    height: 8px;
    background: var(--orange);
    content: "";
    transform: rotate(-22deg);
}

.concert-poster::before {
    top: 38px;
    right: -25px;
}

.concert-poster::after {
    bottom: 18px;
    left: -34px;
}

.concert-poster p {
    margin-bottom: 58px;
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.concert-poster h2 {
    margin-bottom: 10px;
    font-size: clamp(3rem, 4vw, 3.25rem);
    hyphens: none;
    overflow-wrap: normal;
    word-break: normal;
}

.poster-rights {
    margin-bottom: 30px;
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.poster-line {
    width: 88px;
    height: 7px;
    margin-bottom: 44px;
    background: var(--orange);
}

.concert-poster strong,
.concert-poster span,
.concert-poster small {
    display: block;
}

.concert-poster strong {
    margin-bottom: 3px;
    font-size: 1.15rem;
}

.concert-poster > span {
    white-space: pre-line;
}

.poster-supporting {
    margin-top: 40px;
    font-weight: 800;
    line-height: 1.35;
}

.section-heading {
    max-width: 790px;
    margin-bottom: 58px;
}

.section-heading > p:last-child {
    max-width: 690px;
    color: var(--ink-soft);
    font-size: 1.08rem;
}

.concerts-intro {
    display: grid;
    margin-bottom: 58px;
    grid-template-columns: minmax(0, 1fr) minmax(180px, 280px);
    align-items: center;
    gap: clamp(32px, 6vw, 80px);
}

.concerts-intro .section-heading {
    margin-bottom: 0;
}

.concerts-logo {
    width: min(280px, 100%);
    justify-self: end;
    filter: drop-shadow(0 18px 30px rgba(19, 13, 38, 0.12));
}

.concert-details {
    display: grid;
    padding: 30px;
    grid-template-columns: 0.75fr 1.5fr 1.2fr auto;
    align-items: center;
    gap: 24px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: 0 18px 50px rgba(25, 22, 41, 0.08);
}

.concert-details div {
    min-height: 58px;
    padding-right: 24px;
    border-right: 1px solid var(--border);
}

.concert-details span,
.concert-details strong {
    display: block;
}

.concert-details span {
    margin-bottom: 5px;
    color: var(--orange);
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.13em;
    text-transform: uppercase;
}

.concert-details strong {
    line-height: 1.35;
}

.join-section {
    color: var(--white);
    background:
        radial-gradient(circle at 90% 18%, rgba(35, 139, 140, 0.2), transparent 30%),
        linear-gradient(150deg, var(--navy), #0c0718);
}

.join-grid {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: clamp(50px, 8vw, 110px);
    align-items: start;
}

.join-copy {
    position: sticky;
    top: 120px;
}

.join-copy > p:not(.eyebrow, .fineprint) {
    color: rgba(255, 255, 255, 0.74);
    font-size: 1.06rem;
}

.benefit-list {
    margin: 42px 0 28px;
    padding: 0;
    list-style: none;
}

.benefit-list li {
    display: flex;
    padding: 17px 0;
    align-items: center;
    gap: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.13);
    font-weight: 700;
}

.benefit-list span {
    color: var(--teal);
    font-family: "Manrope", sans-serif;
    font-size: 0.76rem;
}

.fineprint {
    color: rgba(255, 255, 255, 0.55);
    font-size: 0.82rem;
}

.form-card {
    padding: clamp(24px, 4vw, 46px);
    color: var(--ink);
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.form-card form,
.field {
    display: grid;
    gap: 9px;
}

.form-card form {
    gap: 24px;
}

.field-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}

.field label,
.field legend {
    color: var(--ink);
    font-size: 0.86rem;
    font-weight: 800;
}

.field label > span,
.field legend > span {
    color: var(--orange);
    font-size: 0.64rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.field input[type="text"],
.field input[type="email"],
.field input[type="tel"],
.field textarea {
    width: 100%;
    min-height: 52px;
    padding: 13px 15px;
    color: var(--ink);
    background: #faf8f4;
    border: 1px solid rgba(25, 22, 41, 0.18);
    border-radius: var(--radius-sm);
    outline: none;
    transition: border-color 150ms ease, box-shadow 150ms ease;
}

.field textarea {
    min-height: 110px;
    resize: vertical;
}

.field input:focus,
.field textarea:focus {
    border-color: var(--teal);
    box-shadow: 0 0 0 4px rgba(35, 139, 140, 0.13);
}

.field small {
    color: var(--ink-soft);
    line-height: 1.4;
}

.choice-row {
    display: flex;
    flex-wrap: wrap;
    gap: 9px;
}

.choice {
    position: relative;
}

.choice input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.choice span {
    display: inline-flex;
    min-height: 42px;
    padding: 0 15px;
    align-items: center;
    color: var(--ink-soft);
    background: #faf8f4;
    border: 1px solid var(--border);
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 700;
    transition: color 150ms ease, background 150ms ease, border 150ms ease;
}

.choice input:checked + span {
    color: var(--white);
    background: var(--teal);
    border-color: var(--teal);
}

.choice input:focus-visible + span {
    outline: 3px solid rgba(244, 174, 12, 0.5);
    outline-offset: 2px;
}

.consent {
    display: flex;
    align-items: flex-start;
    gap: 11px;
    color: var(--ink-soft);
    font-size: 0.83rem;
    line-height: 1.45;
}

.consent input {
    width: 18px;
    height: 18px;
    flex: 0 0 auto;
    margin-top: 2px;
    accent-color: var(--teal);
}

.recaptcha-notice {
    margin: -4px 0 0;
    color: var(--ink-soft);
    font-size: 0.75rem;
    line-height: 1.45;
}

.recaptcha-notice a {
    color: var(--teal);
    font-weight: 700;
}

.submit-button {
    width: 100%;
    border: 0;
}

.honeypot {
    position: absolute !important;
    left: -9999px !important;
}

.field-error {
    color: #b82d18 !important;
    font-weight: 700;
}

.notice {
    margin-bottom: 24px;
    padding: 14px 16px;
    border-radius: var(--radius-sm);
    font-weight: 700;
}

.notice-success {
    color: #155b4d;
    background: #e1f5ed;
}

.notice-error {
    color: #8c2617;
    background: #fff0eb;
}

.concert-updates-notice {
    margin-top: -24px;
}

.updates-modal {
    width: min(620px, calc(100% - 28px));
    max-width: none;
    max-height: calc(100dvh - 28px);
    padding: 0;
    color: var(--ink);
    background: transparent;
    border: 0;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.updates-modal::backdrop {
    background: rgba(12, 7, 24, 0.78);
    backdrop-filter: blur(5px);
}

.updates-modal-card {
    max-height: calc(100dvh - 28px);
    padding: clamp(24px, 5vw, 44px);
    overflow-y: auto;
    background: var(--white);
    border-radius: var(--radius-lg);
}

.updates-modal-header {
    display: grid;
    margin-bottom: 26px;
    grid-template-columns: 1fr auto;
    align-items: start;
    gap: 20px;
}

.updates-modal-header .eyebrow {
    margin-bottom: 10px;
}

.updates-modal-header h2 {
    margin-bottom: 8px;
    font-size: clamp(2rem, 6vw, 3.25rem);
}

.updates-modal-header p:last-child {
    color: var(--ink-soft);
}

.updates-modal-close {
    display: grid;
    width: 42px;
    height: 42px;
    padding: 0;
    place-items: center;
    color: var(--ink);
    background: #f3efe8;
    border: 0;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.7rem;
    line-height: 1;
}

.updates-modal-close:hover {
    background: #e9e1d5;
}

.updates-form {
    display: grid;
    gap: 20px;
}

.updates-consent {
    padding: 14px;
    background: #faf8f4;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}

.privacy-details {
    color: var(--ink-soft);
    background: #faf8f4;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}

.privacy-details summary {
    padding: 14px 16px;
    color: var(--ink);
    cursor: pointer;
    font-size: 0.86rem;
    font-weight: 800;
}

.privacy-details > div {
    display: grid;
    padding: 0 16px 16px;
    gap: 10px;
    font-size: 0.78rem;
    line-height: 1.5;
}

.privacy-details a {
    color: var(--teal);
    font-weight: 800;
}

body.modal-open {
    overflow: hidden;
}

.charity-section {
    color: var(--white);
    background: var(--teal);
}

.charity-section::before {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px),
        linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 52px 52px;
    content: "";
    mask-image: linear-gradient(to right, transparent, black 30%, black 70%, transparent);
}

.charity-note {
    position: absolute;
    top: -150px;
    right: -50px;
    color: rgba(255, 255, 255, 0.08);
    font-family: serif;
    font-size: 500px;
    line-height: 1;
    transform: rotate(8deg);
}

.charity-grid {
    position: relative;
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: clamp(50px, 8vw, 110px);
    align-items: start;
}

.charity-section .eyebrow {
    color: var(--gold-light);
}

.charity-lede {
    font-size: 1.18rem;
    font-weight: 600;
}

.charity-copy > p:not(.eyebrow) {
    color: rgba(255, 255, 255, 0.84);
}

.charity-copy small {
    display: block;
    margin-top: 18px;
    color: rgba(255, 255, 255, 0.66);
}

.letter-card {
    padding: clamp(28px, 5vw, 52px);
    color: var(--ink);
    background: var(--paper);
    border-radius: 4px;
    box-shadow: 28px 30px 0 rgba(19, 13, 38, 0.18);
    transform: rotate(1.2deg);
}

.letter-card h3 {
    font-size: clamp(1.8rem, 3vw, 2.8rem);
}

.letter-card details {
    margin-top: 26px;
}

.letter-card summary {
    color: var(--teal);
    font-weight: 800;
    cursor: pointer;
}

.letter-content {
    padding-top: 24px;
    color: var(--ink-soft);
    font-family: Georgia, serif;
    font-size: 0.96rem;
    line-height: 1.75;
}

.placeholder-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 22px;
}

.placeholder-card {
    min-height: 280px;
    padding: 30px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
}

.placeholder-card h3 {
    margin: 28px 0 12px;
}

.placeholder-card p {
    color: var(--ink-soft);
}

.about-card-copy {
    max-width: 920px;
}

.about-card-copy p + p {
    margin-top: 18px;
}

.placeholder-icon {
    display: grid;
    width: 58px;
    height: 58px;
    place-items: center;
    color: var(--white);
    background: var(--orange);
    border-radius: 50%;
    font-family: "Manrope", sans-serif;
    font-size: 1.4rem;
    font-weight: 800;
}

.placeholder-card:nth-child(2) .placeholder-icon {
    background: var(--teal);
}

.placeholder-card:nth-child(3) .placeholder-icon {
    color: var(--navy);
    background: var(--gold);
}

.about-card-copy a {
    color: var(--teal);
    font-weight: 800;
    text-decoration: underline;
    text-decoration-thickness: 2px;
    text-underline-offset: 3px;
}

.image-placeholder > div {
    min-height: 112px;
    background:
        linear-gradient(135deg, transparent 42%, rgba(255, 255, 255, 0.15) 42% 46%, transparent 46%),
        repeating-linear-gradient(40deg, var(--gold) 0 18px, var(--orange) 18px 36px);
    border-radius: 14px;
}

.image-placeholder h3 {
    margin-top: 22px;
}

.contact-section {
    color: var(--white);
    background: var(--navy);
}

.contact-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 42px;
}

.contact-inner > div {
    max-width: 700px;
}

.contact-inner h2 {
    margin-bottom: 12px;
}

.contact-inner p:last-child {
    color: rgba(255, 255, 255, 0.7);
}

.site-footer {
    padding: 42px 0;
    color: rgba(255, 255, 255, 0.62);
    background: #090614;
}

.footer-inner {
    display: grid;
    grid-template-columns: 110px 1fr auto auto;
    align-items: center;
    gap: 24px;
}

.footer-inner > img {
    width: 96px;
}

.footer-inner p {
    margin: 0;
    font-size: 0.8rem;
}

.footer-inner strong {
    color: var(--white);
    font-size: 1rem;
}

.footer-association {
    display: flex;
    align-items: center;
    gap: 12px;
    color: rgba(255, 255, 255, 0.78);
    font-size: 0.75rem;
    font-weight: 700;
}

.footer-association-logo {
    display: block;
    width: 150px;
}

.footer-association-logo img {
    display: block;
    width: 150px;
}

.footer-rights {
    text-align: right;
}

.reveal {
    animation: reveal 650ms ease both;
}

@keyframes reveal {
    from {
        opacity: 0;
        transform: translateY(18px);
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

@media (max-width: 1020px) {
    .primary-nav {
        gap: 15px;
    }

    .primary-nav a {
        font-size: 0.82rem;
    }

    .hero-grid,
    .join-grid,
    .charity-grid {
        grid-template-columns: 1fr;
    }

    .hero-copy {
        max-width: 820px;
    }

    .hero-art {
        max-width: 600px;
        margin: 20px auto 0;
    }

    .join-copy {
        position: static;
        max-width: 720px;
    }

    .concert-details {
        grid-template-columns: repeat(3, 1fr);
    }

    .concert-details .button {
        grid-column: 1 / -1;
    }
}

@media (max-width: 820px) {
    :root {
        --shell: min(100% - 28px, 680px);
    }

    .site-header {
        height: 76px;
        background: rgba(19, 13, 38, 0.92);
        backdrop-filter: blur(18px);
    }

    .brand {
        width: 102px;
    }

    .menu-toggle {
        display: block;
    }

    .primary-nav {
        position: absolute;
        top: calc(100% + 8px);
        right: 14px;
        left: 14px;
        display: none;
        padding: 18px;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        background: rgba(19, 13, 38, 0.98);
        border: 1px solid rgba(255, 255, 255, 0.16);
        border-radius: 18px;
        box-shadow: var(--shadow);
    }

    .primary-nav.is-open {
        display: flex;
    }

    .primary-nav a {
        padding: 12px;
        font-size: 0.95rem;
    }

    .primary-nav a::after {
        display: none;
    }

    .language-control select {
        width: 54px;
        min-width: 54px;
        padding-inline: 7px;
        color: transparent;
    }

    .language-control {
        position: relative;
    }

    .language-control::after {
        position: absolute;
        inset: 0;
        display: grid;
        place-items: center;
        color: var(--white);
        content: "文";
        font-size: 1rem;
        font-weight: 800;
        pointer-events: none;
    }

    .hero {
        min-height: 0;
        padding-top: 130px;
    }

    .hero-art {
        min-height: 460px;
    }

    .concert-poster {
        min-height: 430px;
        padding: 42px 32px;
        box-shadow: 18px 20px 0 rgba(35, 139, 140, 0.75), var(--shadow);
    }

    .concert-poster p {
        margin-bottom: 38px;
    }

    .concert-details {
        grid-template-columns: 1fr;
    }

    .concerts-intro {
        grid-template-columns: 1fr;
    }

    .concerts-logo {
        width: min(230px, 60vw);
        justify-self: center;
    }

    .concert-details div {
        padding: 0 0 18px;
        border-right: 0;
        border-bottom: 1px solid var(--border);
    }

    .field-grid,
    .placeholder-grid {
        grid-template-columns: 1fr;
    }

    .contact-inner {
        align-items: flex-start;
        flex-direction: column;
    }

    .footer-inner {
        grid-template-columns: 86px 1fr;
    }

    .footer-association,
    .footer-rights {
        grid-column: 1 / -1;
    }

    .footer-association {
        margin-top: 8px;
    }

    .footer-rights {
        text-align: left;
    }
}

@media (max-width: 520px) {
    .footer-association {
        align-items: flex-start;
        flex-direction: column;
        gap: 0;
    }

    h1 {
        font-size: clamp(2.75rem, 15vw, 4.4rem);
    }

    .section {
        padding-block: 78px;
    }

    .button-row .button {
        width: 100%;
    }

    .hero-notes {
        display: grid;
        gap: 12px;
    }

    .hero-art {
        min-height: 410px;
    }

    .concert-poster {
        min-height: 390px;
    }

    .concert-poster h2 {
        font-size: 3.25rem;
    }

    .choice span {
        min-height: 44px;
    }

    .form-card {
        border-radius: 24px;
    }
}