:root {
    --page-bg: #f5f7fb;
    --panel-bg: rgba(255, 255, 255, 0.96);
    --panel-border: #d8dee6;
    --panel-shadow: 0 10px 28px rgba(10, 30, 60, 0.08);
    --panel-subtle: #fbfcfe;
    --text: #1b2430;
    --muted: #5f6b7a;
    --accent: #0f62fe;
    --accent-strong: #0b4ecc;
    --danger: #b42318;
    --success: #1f6b3c;
    --brand-mane: #6741b8;
    --brand-bid: #b83280;
    --brand-tagline: #536176;
    --content-width: 720px;
}

:root[data-theme="dark"] {
    --page-bg: #0e1624;
    --panel-bg: rgba(17, 25, 39, 0.94);
    --panel-border: #2a3950;
    --panel-shadow: 0 18px 40px rgba(0, 0, 0, 0.34);
    --panel-subtle: #162234;
    --text: #e6edf7;
    --muted: #9eb0c8;
    --accent: #5f9fff;
    --accent-strong: #4a8ef8;
    --danger: #ff8c86;
    --success: #9fe3bc;
    --brand-mane: #c8b8ff;
    --brand-bid: #ff9ccb;
    --brand-tagline: #b8c5d8;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Trebuchet MS", "Segoe UI", sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at top left, rgba(15, 98, 254, 0.08), transparent 26%),
        radial-gradient(circle at top right, rgba(16, 185, 129, 0.07), transparent 20%),
        linear-gradient(180deg, #f7f9fc 0%, var(--page-bg) 100%);
}

.brand-lockup {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.app-wordmark {
    color: var(--brand-mane);
    font-family: "Fredoka", "Trebuchet MS", sans-serif;
    font-weight: 700;
    letter-spacing: 0;
}

.app-wordmark__mane {
    color: var(--brand-mane);
}

.app-wordmark__bid {
    color: var(--brand-bid);
}

.app-tagline {
    color: var(--brand-tagline);
    font-family: "Nunito Sans", "Segoe UI", sans-serif;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

@media (forced-colors: active) {
    .app-wordmark__mane,
    .app-wordmark__bid {
        color: currentColor;
    }
}

img {
    max-width: 100%;
}

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

.page-hero {
    padding: 18px 16px 6px;
}

.hero-shell,
.page-shell,
.page-footer {
    width: min(var(--content-width), calc(100% - 24px));
    margin: 0 auto;
}

.hero-shell {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.98) 0%, rgba(248, 251, 255, 0.96) 100%);
    border: 1px solid rgba(216, 222, 230, 0.96);
    border-radius: 20px;
    box-shadow: 0 18px 40px rgba(10, 30, 60, 0.1);
    padding: 18px 20px;
    position: relative;
    overflow: hidden;
}

.hero-shell::after {
    content: "";
    position: absolute;
    inset: auto -40px -60px auto;
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(15, 98, 254, 0.16) 0%, rgba(15, 98, 254, 0) 70%);
    pointer-events: none;
}

.hero-headline-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
}

.hero-eyebrow,
.panel-kicker {
    margin: 0 0 4px;
    color: #35527a;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.page-hero h1,
.panel-head h2,
.photo-panel-head h3,
.info-block h3,
.gate-card h3 {
    margin: 0;
}

.page-hero h1 {
    font-size: clamp(1.65rem, 3vw, 2.5rem);
    line-height: 1.04;
    max-width: none;
    width: 100%;
    text-wrap: balance;
}

.hero-copy {
    margin: 8px 0 0;
    max-width: 56ch;
    color: var(--muted);
    font-size: 1rem;
    line-height: 1.55;
}

.page-shell {
    padding: 6px 0 16px;
}

.entry-layout {
    display: grid;
    gap: 12px;
    grid-template-columns: minmax(0, var(--content-width));
    justify-content: center;
}

.panel {
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: 20px;
    box-shadow: var(--panel-shadow);
    overflow: hidden;
}

.panel-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 8px;
    padding: 14px 18px 12px;
    background: var(--panel-subtle);
    border-bottom: 1px solid var(--panel-border);
}

.panel-head h2 {
    font-size: 1.25rem;
    line-height: 1.1;
}

.panel-body {
    padding: 16px;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    min-height: 38px;
    padding: 0 14px;
    border: 1px solid #d7deea;
    border-radius: 999px;
    background: #eef4ff;
    color: #24436b;
    font-size: 0.92rem;
    font-weight: 700;
    white-space: nowrap;
}

.theme-toggle {
    appearance: none;
    background: #eef4ff;
    border: 1px solid #d7deea;
    border-radius: 999px;
    color: #24436b;
    cursor: pointer;
    font: inherit;
    font-size: 0.88rem;
    font-weight: 700;
    min-height: 34px;
    padding: 0 12px;
    white-space: nowrap;
    transition: background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.theme-toggle:hover {
    background: #e5eefc;
    border-color: #c6d7ef;
    box-shadow: 0 8px 18px rgba(15, 98, 254, 0.12);
}

.gate-card {
    display: grid;
    gap: 12px;
    padding: 16px;
    border: 1px solid #dbe6f5;
    border-radius: 16px;
    background: linear-gradient(135deg, #f8fbff 0%, #fdfefe 100%);
}

.gate-card p,
.holding-card p {
    margin: 0;
    color: var(--muted);
    line-height: 1.5;
}

.holding-card {
    display: grid;
    gap: 10px;
    padding: 18px;
    border: 1px solid #dbe6f5;
    border-radius: 16px;
    background: linear-gradient(135deg, #f8fbff 0%, #fdfefe 100%);
}

.holding-card h3 {
    margin: 0;
    color: var(--text);
    font-size: 1.2rem;
}

.gate-actions {
    display: grid;
    gap: 10px;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
}

#auction-form {
    display: grid;
    gap: 14px;
}

.field-grid {
    display: grid;
    gap: 10px;
}

.field {
    display: grid;
    gap: 5px;
}

.field[hidden] {
    display: none;
}

.field > span {
    font-size: 0.92rem;
    font-weight: 700;
    color: #24436b;
}

input[type="text"],
input[type="file"],
input[type="email"] {
    width: 100%;
    min-height: 40px;
    padding: 8px 11px;
    border: 1px solid #cbd5df;
    border-radius: 12px;
    background: #fff;
    color: var(--text);
}

input[type="text"]:focus,
input[type="file"]:focus,
input[type="email"]:focus {
    border-color: #8ab4ff;
    box-shadow: 0 0 0 4px rgba(15, 98, 254, 0.14);
    outline: none;
}

input[type="file"] {
    padding: 8px 10px;
}

.photo-panel {
    display: grid;
    gap: 10px;
    padding: 12px;
    border: 1px solid #e7ebf0;
    border-radius: 16px;
    background: #fbfcfe;
}

.photo-panel-head p,
.field-hint,
.info-block p {
    margin: 4px 0 0;
    color: var(--muted);
    line-height: 1.4;
}

.photo-actions {
    display: grid;
    gap: 6px;
}

.photo-preview-slot[hidden] {
    display: none;
}

.photo-preview-slot {
    min-height: 0;
}

.checkbox-row {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    width: fit-content;
    color: var(--text);
    font-weight: 600;
}

.checkbox-row input {
    width: 18px;
    height: 18px;
    margin: 0;
    accent-color: var(--accent);
}

.primary-button,
.secondary-button,
input[type="reset"] {
    -webkit-appearance: none;
    appearance: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    flex: 0 0 auto;
    border-radius: 12px;
    cursor: pointer;
    min-height: 38px;
    padding: 8px 14px;
    border-width: 1px;
    border-style: solid;
    line-height: 1.2;
    white-space: normal;
    transition: background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease, color 0.15s ease;
}

.primary-button {
    border: 1px solid var(--accent);
    background: var(--accent);
    color: #fff;
    font-weight: 700;
}

.primary-button:hover {
    background: var(--accent-strong);
    border-color: var(--accent-strong);
}

.secondary-button,
input[type="reset"] {
    border: 1px solid #cbd5df;
    background: #fff;
    color: var(--text);
    font-weight: 600;
}

.secondary-button:hover,
input[type="reset"]:hover {
    background: #f4f7fa;
}

.primary-button:disabled,
.secondary-button:disabled,
input[type="reset"]:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.form-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.form-actions > * {
    flex: 1 1 180px;
    margin: 0;
}

#img-preview {
    display: block;
    width: 100%;
    max-width: 240px;
    margin-top: 2px;
    border: 1px solid #d7deea;
    border-radius: 14px;
    box-shadow: 0 8px 20px rgba(10, 30, 60, 0.08);
}

.logo-link {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    margin-top: 8px;
    color: #24436b;
    font-weight: 700;
    text-decoration: none;
}

.logo-link:hover span {
    text-decoration: underline;
}

.logo {
    display: none;
    width: auto;
    max-width: min(300px, 100%);
    max-height: 170px;
    border-radius: 12px;
}

.form-footer {
    padding-top: 2px;
    border-top: 1px solid #e7ebf0;
    display: flex;
    justify-content: center;
}

.error-message {
    min-height: 1.2em;
    margin: 0;
    color: var(--danger);
    font-size: 0.94rem;
}

.message-banner {
    position: fixed;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    width: min(560px, calc(100% - 24px));
    padding: 12px 14px;
    border-radius: 12px;
    box-shadow: 0 12px 28px rgba(10, 30, 60, 0.14);
    display: none;
    opacity: 0;
    transition: opacity 0.25s ease;
    z-index: 1000;
    text-align: center;
}

.message-banner.success {
    background: #eef8f1;
    color: var(--success);
    border: 1px solid #b9dfc7;
}

.message-banner.error {
    background: #fff1f1;
    color: var(--danger);
    border: 1px solid #efb3b3;
}

.message-banner.info {
    background: #eef4ff;
    color: #24436b;
    border: 1px solid #c6d7ef;
}

.page-footer {
    padding: 0 0 12px;
}

.page-footer p {
    margin: 0;
    padding: 10px 8px 0;
    border-top: 1px solid rgba(203, 213, 223, 0.9);
    color: var(--muted);
    font-size: 0.82rem;
    text-align: center;
}

.page-footer .brand-lockup {
    align-items: center;
    margin-bottom: 7px;
}

.page-footer .app-wordmark {
    font-size: 1.15rem;
    line-height: 1;
}

.page-footer .app-tagline {
    font-size: 0.62rem;
}

@media (max-width: 860px) {
    .hero-headline-row {
        flex-direction: column;
    }

    .panel-head {
        flex-direction: column;
    }

    .status-pill {
        align-self: flex-start;
    }
}

@media (max-width: 640px) {
    .page-hero {
        padding: 8px 8px 4px;
    }

    .hero-shell,
    .panel-body,
    .panel-head {
        padding-left: 12px;
        padding-right: 12px;
    }

    .hero-shell {
        padding-top: 12px;
        padding-bottom: 12px;
        border-radius: 16px;
    }

    .page-shell,
    .page-footer {
        width: min(100%, calc(100% - 10px));
    }

    .page-shell {
        padding-bottom: 10px;
    }

    .gate-actions {
        grid-template-columns: 1fr;
    }

    .form-actions {
        flex-direction: column;
    }

    .form-actions > * {
        width: 100%;
        flex-basis: auto;
    }

    input[type="text"],
    input[type="file"],
    .primary-button,
    .secondary-button,
    input[type="reset"] {
        min-height: 36px;
        padding-top: 8px;
        padding-bottom: 8px;
    }

    #auction-form {
        gap: 12px;
    }

    .field-grid,
    .photo-panel {
        gap: 8px;
    }

    .checkbox-row {
        gap: 8px;
        font-size: 0.94rem;
    }

    .page-footer p {
        font-size: 0.76rem;
    }
}

:root[data-theme="dark"] body {
    background:
        radial-gradient(circle at top left, rgba(95, 159, 255, 0.16), transparent 28%),
        radial-gradient(circle at top right, rgba(16, 185, 129, 0.11), transparent 24%),
        linear-gradient(180deg, #0a111c 0%, var(--page-bg) 100%);
}

:root[data-theme="dark"] .hero-shell,
:root[data-theme="dark"] .panel {
    background: var(--panel-bg);
    border-color: var(--panel-border);
    box-shadow: var(--panel-shadow);
}

:root[data-theme="dark"] .panel-head,
:root[data-theme="dark"] .photo-panel,
:root[data-theme="dark"] .gate-card,
:root[data-theme="dark"] .holding-card,
:root[data-theme="dark"] .status-pill {
    background: #162234;
    border-color: #253349;
}

:root[data-theme="dark"] .field > span,
:root[data-theme="dark"] .logo-link {
    color: #dfeaff;
}

:root[data-theme="dark"] input[type="text"],
:root[data-theme="dark"] input[type="file"] {
    background: #0f1726;
    border-color: #31425c;
    color: var(--text);
}

:root[data-theme="dark"] input[type="text"]:focus,
:root[data-theme="dark"] input[type="file"]:focus {
    border-color: #5f9fff;
    box-shadow: 0 0 0 4px rgba(95, 159, 255, 0.18);
}

:root[data-theme="dark"] .secondary-button,
:root[data-theme="dark"] input[type="reset"],
:root[data-theme="dark"] .theme-toggle {
    background: #142032;
    border-color: #31425c;
    color: var(--text);
}

:root[data-theme="dark"] .secondary-button:hover,
:root[data-theme="dark"] input[type="reset"]:hover,
:root[data-theme="dark"] .theme-toggle:hover {
    background: #1b2a41;
}

:root[data-theme="dark"] .primary-button {
    color: #08111d;
}

:root[data-theme="dark"] .checkbox-row,
:root[data-theme="dark"] .gate-card p,
:root[data-theme="dark"] .photo-panel-head p,
:root[data-theme="dark"] .field-hint,
:root[data-theme="dark"] .info-block p,
:root[data-theme="dark"] .page-footer p {
    color: var(--muted);
}

:root[data-theme="dark"] .form-footer,
:root[data-theme="dark"] .page-footer p {
    border-color: #253349;
}

:root[data-theme="dark"] .message-banner.success {
    background: #13251e;
    color: var(--success);
    border-color: #2d6b50;
}

:root[data-theme="dark"] .message-banner.error {
    background: #2b1719;
    color: var(--danger);
    border-color: #7e3a40;
}

:root[data-theme="dark"] .message-banner.info {
    background: #162234;
    color: #dfeaff;
    border-color: #31425c;
}

.modal_default_background {
    background: rgba(14, 23, 38, 0.52) !important;
}

.modal_default_main {
    background: var(--panel-bg) !important;
    border: 1px solid var(--panel-border) !important;
    border-radius: 16px !important;
    box-shadow: 0 24px 48px rgba(10, 30, 60, 0.22) !important;
    color: var(--text) !important;
    overflow: hidden !important;
}

.modal_default_inner {
    background: transparent !important;
}

.modal_default_content,
.modal_default_input,
.modal_default_buttons {
    padding-left: 18px !important;
    padding-right: 18px !important;
}

.modal_default_content {
    color: var(--text) !important;
    font: inherit !important;
    padding-top: 18px !important;
}

.modal_default_input {
    padding-bottom: 14px !important;
}

.modal_default_buttons {
    display: flex !important;
    gap: 8px !important;
    justify-content: flex-end !important;
    padding-bottom: 18px !important;
}

.modal_default_input input {
    background: #fff !important;
    border: 1px solid #cbd5df !important;
    border-radius: 10px !important;
    box-sizing: border-box !important;
    color: var(--text) !important;
    font: inherit !important;
    min-height: 40px !important;
    padding: 8px 10px !important;
    width: 100% !important;
}

.modal_default_ok,
.modal_default_cancel {
    border-radius: 10px !important;
    font: inherit !important;
    font-weight: 700 !important;
    min-height: 38px !important;
    padding: 0 14px !important;
}

.modal_default_ok {
    background: var(--accent) !important;
    border: 1px solid var(--accent) !important;
    color: #fff !important;
}

.modal_default_cancel {
    background: #eef4ff !important;
    border: 1px solid #d7deea !important;
    color: #24436b !important;
}

:root[data-theme="dark"] .modal_default_main {
    background: #121d2d !important;
    border-color: #31425c !important;
    box-shadow: 0 28px 56px rgba(0, 0, 0, 0.38) !important;
}

:root[data-theme="dark"] .modal_default_input input {
    background: #0b1320 !important;
    border-color: #31425c !important;
    color: var(--text) !important;
}

:root[data-theme="dark"] .modal_default_cancel {
    background: #121d2d !important;
    border-color: #31425c !important;
    color: var(--text) !important;
}

.preregistration-success {
    display: grid;
    gap: 16px;
    justify-items: center;
    text-align: center;
}

.preregistration-success[hidden] {
    display: none;
}

.submission-summary {
    display: grid;
    gap: 8px;
    margin: 0;
    max-width: 560px;
    text-align: left;
    width: 100%;
}

.submission-summary div {
    display: grid;
    grid-template-columns: minmax(100px, 0.35fr) 1fr;
    gap: 12px;
}

.submission-summary dt {
    font-weight: 700;
}

.submission-summary dd {
    margin: 0;
    overflow-wrap: anywhere;
}

.preregistration-qr {
    background: #fff;
    border: 12px solid #fff;
    border-radius: 8px;
    height: min(70vw, 320px);
    image-rendering: pixelated;
    width: min(70vw, 320px);
}

#preregistration-email-field small {
    color: var(--muted-text, #5a6472);
    display: block;
    line-height: 1.35;
    margin-top: 4px;
}

.info-card {
    background: var(--panel-subtle);
    border: 1px solid var(--border);
    border-radius: 10px;
    margin-bottom: 18px;
    padding: 14px 16px;
}
.info-card h3 { margin-top: 0; }