:root {
    --bg: #eef3f8;
    --panel: #ffffff;
    --panel-soft: #f7f9fc;
    --text: #18212b;
    --muted: #617083;
    --line: #d8e0ea;
    --primary: #0d5cf0;
    --primary-dark: #0a47be;
    --accent: #0f766e;
    --shadow: 0 18px 42px rgba(15, 23, 42, 0.08);
    --container-width: 1520px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Inter, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: var(--text);
    background: linear-gradient(180deg, #f9fbfe 0%, var(--bg) 100%);
}

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

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

.container {
    width: min(var(--container-width), calc(100% - 2rem));
    margin: 0 auto;
}

.site-header,
.site-footer {
    padding: 1.25rem 0;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(249, 251, 254, 0.88);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(216, 224, 234, 0.85);
}

.header-layout,
.split-row,
.panel-grid {
    display: flex;
    gap: 1rem;
    justify-content: space-between;
    align-items: center;
}

.header-layout {
    gap: 1.5rem;
    flex-wrap: nowrap;
    min-width: 0;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.9rem;
    min-width: 0;
    text-decoration: none;
}

.brand-logo {
    width: 52px;
    height: 52px;
    object-fit: contain;
    flex: 0 0 auto;
}

.brand-copy {
    display: grid;
    gap: 0.1rem;
    min-width: 0;
    line-height: 1.05;
}

.brand-name {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 0.01em;
    color: var(--text);
}

.brand-subtitle {
    font-size: 0.82rem;
    color: var(--muted);
}

.panel-grid {
    align-items: stretch;
}

.nav-links {
    display: flex;
    gap: 0.55rem;
    flex-wrap: nowrap;
    align-items: center;
    white-space: nowrap;
    min-width: 0;
    overflow-x: auto;
}

.nav-links > a:not(.button-link) {
    padding: 0.55rem 0.9rem;
    border: 1px solid transparent;
    border-radius: 999px;
    font-weight: 600;
    color: var(--text);
    flex: 0 0 auto;
}

.nav-links > a:not(.button-link):hover {
    border-color: var(--line);
    background: var(--panel);
}

.nav-links .button-link,
.nav-links .nav-button {
    color: white;
    background: var(--primary);
    border: 0;
}

.nav-links .button-link:hover,
.nav-links .nav-button:hover {
    color: white;
    background: var(--primary-dark);
    border: 0;
}

.nav-button,
.button-link {
    border: 0;
    border-radius: 999px;
    padding: 0.8rem 1.2rem;
    background: var(--primary);
    color: white;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
}

.button-link--secondary {
    background: var(--primary);
    color: white;
    border: 0;
}

.button-link--secondary:hover {
    background: var(--primary-dark);
    color: white;
    border: 0;
}

.button-link--small {
    padding: 0.5rem 0.8rem;
    font-size: 0.9rem;
}

.nav-button:hover,
.button-link:hover {
    background: var(--primary-dark);
}

.nav-button--ghost {
    background: var(--primary);
    color: white;
    border: 0;
}

.nav-button--ghost:hover {
    background: var(--primary-dark);
    color: white;
}

.panel,
.callout {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
}

.heading-row {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.icon-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--panel);
    color: var(--text);
    text-decoration: none;
}

.icon-button:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.icon-button svg {
    width: 1rem;
    height: 1rem;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.callout {
    background: linear-gradient(180deg, rgba(13, 92, 240, 0.07), rgba(255, 255, 255, 1));
}

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

.summary-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.summary-card {
    background: linear-gradient(180deg, rgba(13, 92, 240, 0.07), rgba(255, 255, 255, 1));
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 1.2rem;
}

.summary-card strong {
    display: block;
    margin: 0.3rem 0;
    font-size: 2rem;
}

.activity-group {
    display: grid;
    gap: 0.85rem;
}

.activity-group-header {
    display: flex;
    gap: 1rem;
    justify-content: space-between;
    align-items: center;
}

.activity-count {
    min-width: 3rem;
    padding: 0.45rem 0.7rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    text-align: center;
    color: var(--muted);
    background: rgba(255, 255, 255, 0.7);
}

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

.activity-button {
    display: grid;
    gap: 0.35rem;
    min-height: 8.5rem;
    padding: 1rem 1.1rem;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: linear-gradient(180deg, rgba(15, 108, 92, 0.09), rgba(255, 253, 248, 1));
    box-shadow: 0 10px 28px rgba(31, 42, 46, 0.05);
}

.activity-button strong {
    font-size: 1.05rem;
}

.activity-button span {
    color: var(--muted);
}

.detail-hero {
    display: flex;
    gap: 1rem;
    justify-content: space-between;
    align-items: flex-start;
}

.activity-hero {
    display: grid;
    gap: 1rem;
    grid-template-columns: minmax(0, 1fr) minmax(0, 320px);
    align-items: start;
}

.activity-hero-image-card {
    cursor: pointer;
    min-height: 260px;
}

.activity-hero-image-card:hover,
.activity-hero-image-card:focus,
.activity-hero-image-card.is-dragging {
    border-color: var(--primary);
    background: rgba(13, 92, 240, 0.05);
    outline: none;
}

.activity-hero-image-preview {
    width: 100%;
    max-height: 220px;
    display: block;
    object-fit: cover;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--panel-soft);
}

.landing-layout {
    display: grid;
    gap: 1.25rem;
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    align-items: stretch;
    margin: 1.25rem 0 2rem;
}

.login-panel {
    min-height: 640px;
    justify-content: space-between;
}

.hero-panel {
    position: relative;
    overflow: hidden;
    border-radius: 20px;
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    min-height: 640px;
    background: #dbe4ee;
}

.hero-image {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    left: 1.25rem;
    right: 1.25rem;
    bottom: 1.25rem;
    padding: 1.25rem 1.35rem;
    border-radius: 18px;
    background: rgba(8, 15, 28, 0.64);
    color: white;
    backdrop-filter: blur(10px);
}

.hero-overlay .muted,
.hero-overlay .section-label {
    color: rgba(255, 255, 255, 0.78);
}

.hero-overlay h2 {
    margin-top: 0.2rem;
}

.activity-description {
    white-space: pre-wrap;
}

.public-shell {
    display: grid;
    gap: 1.25rem;
    width: min(100%, 1100px);
    margin: 1.25rem auto 2rem;
    padding: 0;
}

.public-hero {
    display: grid;
    gap: 0.9rem;
    padding: 1.35rem 1.45rem;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(13, 92, 240, 0.14), rgba(255, 255, 255, 1));
    box-shadow: var(--shadow);
}

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

.public-hero-logo {
    width: 58px;
    height: 58px;
    object-fit: contain;
    flex: 0 0 auto;
}

.public-hero-title-block h1 {
    margin: 0.1rem 0 0;
}

.public-hero-copy {
    max-width: 70ch;
    margin: 0;
    color: var(--muted);
}

.public-activity-hero-image {
    width: 100%;
    max-height: 420px;
    display: block;
    object-fit: cover;
    border: 1px solid var(--line);
    border-radius: 20px;
    box-shadow: var(--shadow);
    background: var(--panel-soft);
}

.public-hero-meta {
    display: flex;
    gap: 0.65rem;
    flex-wrap: wrap;
}

.public-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.45rem 0.75rem;
    border-radius: 999px;
    border: 1px solid rgba(13, 92, 240, 0.18);
    background: rgba(13, 92, 240, 0.08);
    color: var(--primary-dark);
    font-size: 0.9rem;
    font-weight: 600;
}

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

.public-section {
    display: grid;
    gap: 1rem;
    padding: 1.2rem;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: var(--panel);
    box-shadow: var(--shadow);
}

.public-section-header {
    display: grid;
    gap: 0.2rem;
}

.public-section-header h2,
.public-section-header p {
    margin: 0;
}

.public-summary-grid {
    display: grid;
    gap: 0.8rem;
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.public-summary-item {
    display: grid;
    gap: 0.35rem;
    min-width: 0;
    padding: 0.95rem 1rem;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.9);
}

.public-summary-item span {
    color: var(--muted);
    font-size: 0.9rem;
}

.public-summary-item strong {
    font-size: 1rem;
    word-break: break-word;
}

.public-form-grid {
    gap: 0.9rem 1rem;
}

.public-form-grid label {
    align-content: start;
}

.public-form-grid select {
    min-height: 48px;
}

.public-form-grid textarea {
    min-height: 96px;
}

.public-notice {
    padding: 0.9rem 1rem;
    border-radius: 12px;
    font-weight: 600;
}

.public-notice--success {
    background: rgba(13, 92, 240, 0.1);
    color: var(--primary-dark);
    border: 1px solid rgba(13, 92, 240, 0.18);
}

.public-notice--error {
    background: rgba(220, 38, 38, 0.08);
    color: #b91c1c;
    border: 1px solid rgba(220, 38, 38, 0.2);
}

.public-footer-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
    flex-wrap: wrap;
}

.public-section-title-row {
    align-items: center;
}

.public-qr-panel {
    gap: 1rem;
}

.public-qr-page {
    display: grid;
    place-items: center;
    min-height: calc(100vh - 7rem);
    padding: 1.5rem 0 2rem;
}

.public-qr-card {
    display: grid;
    gap: 1rem;
    justify-items: center;
    text-align: center;
    width: min(100%, 420px);
    padding: 1.5rem;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: var(--panel);
    box-shadow: var(--shadow);
}

.public-qr-image {
    width: min(100%, 360px);
    aspect-ratio: 1;
    border-radius: 18px;
    border: 1px solid var(--line);
    background: #fff;
    padding: 0.75rem;
}

.qr-layout {
    display: grid;
    gap: 1rem;
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
}

.qr-code-image {
    width: 240px;
    height: 240px;
    border-radius: 16px;
    border: 1px solid var(--line);
    background: #fff;
    padding: 0.75rem;
}

.is-hidden {
    display: none !important;
}

.detail-meta {
    display: grid;
    gap: 0.75rem;
    min-width: 0;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-self: start;
}

.detail-meta div {
    display: grid;
    gap: 0.2rem;
    min-width: 0;
    padding: 0.85rem 1rem;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.75);
}

.detail-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.detail-grid-two {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.detail-card {
    display: grid;
    gap: 0.4rem;
    padding: 1.1rem;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.8);
}

.form-grid-full {
    grid-column: 1 / -1;
}

.code-block {
    margin: 0;
    padding: 1rem;
    overflow: auto;
    border-radius: 12px;
    border: 1px solid var(--line);
    background: #fff;
    color: var(--text);
    white-space: pre-wrap;
    word-break: break-word;
}

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

.form-grid label {
    display: grid;
    gap: 0.4rem;
}

.checkbox-row {
    display: flex !important;
    align-items: center;
    gap: 0.55rem !important;
}

.checkbox-row input {
    width: auto;
}

.upload-dropzone {
    display: grid;
    gap: 0.35rem;
    place-items: center;
    min-height: 150px;
    padding: 1.2rem;
    border: 2px dashed var(--line);
    border-radius: 16px;
    background: var(--panel-soft);
    cursor: pointer;
    text-align: center;
}

.upload-dropzone.is-dragging,
.upload-dropzone:hover,
.upload-dropzone:focus {
    border-color: var(--primary);
    background: rgba(13, 92, 240, 0.06);
    outline: none;
}

.upload-dropzone-input {
    display: none;
}

.upload-dropzone-title {
    font-weight: 700;
    color: var(--text);
}

.form-grid textarea,
.form-grid button {
    grid-column: 1 / -1;
}

input,
textarea,
select {
    width: 100%;
    padding: 0.75rem 0.85rem;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: #fff;
}

button {
    border: 0;
    border-radius: 999px;
    padding: 0.8rem 1.2rem;
    background: var(--primary);
    color: white;
    cursor: pointer;
}

button:hover {
    background: var(--primary-dark);
}

.table-wrap {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

tbody tr[title] {
    cursor: help;
}

th,
td {
    padding: 0.85rem;
    text-align: left;
    border-bottom: 1px solid var(--line);
}

.muted,
.section-label,
.eyebrow {
    color: var(--muted);
}

.section-label,
.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.8rem;
}

@media (max-width: 768px) {
    .header-layout,
    .split-row,
    .panel-grid,
    .form-grid,
    .summary-grid,
    .activity-button-grid,
    .detail-grid,
    .detail-grid-two,
    .detail-hero,
    .activity-hero {
        grid-template-columns: 1fr;
        display: grid;
    }

    .detail-meta {
        grid-template-columns: 1fr;
    }

    .landing-layout {
        grid-template-columns: 1fr;
    }

    .public-shell {
        width: min(100%, calc(100% - 2rem));
    }

    .public-summary-grid {
        grid-template-columns: 1fr;
    }

    .qr-layout {
        grid-template-columns: 1fr;
    }

    .qr-code-image {
        width: min(100%, 240px);
        height: auto;
        justify-self: start;
    }

    .activity-group-header {
        align-items: flex-start;
    }

    .nav-links {
        flex-wrap: wrap;
        white-space: normal;
    }
}