:root {
    --bg: #102528;
    --bg-soft: #16363a;
    --card: #ffffff;
    --ink: #1d2a2e;
    --muted: #627277;
    --line: #dce6e8;
    --teal: #0b7a83;
    --teal-dark: #075d65;
    --gold: #f5bd27;
    --red: #d92d20;
    --cream: #fff7e5;
    --success: #147a44;
    --danger: #b42318;
    --shadow: 0 20px 50px rgba(0, 0, 0, 0.18);
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--ink);
    background:
        radial-gradient(circle at top left, rgba(245, 189, 39, 0.16), transparent 34rem),
        radial-gradient(circle at bottom right, rgba(11, 122, 131, 0.22), transparent 38rem),
        var(--bg);
    line-height: 1.6;
}

a {
    color: var(--teal);
}

img {
    max-width: 100%;
}

.container {
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto;
}

.site-header {
    background: rgba(16, 37, 40, 0.92);
    color: #fff;
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    min-height: 78px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 14px;
    color: #fff;
    text-decoration: none;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.brand img {
    width: 58px;
    height: 58px;
    border-radius: 999px;
    object-fit: cover;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.18);
}

.brand span {
    display: block;
    font-size: 1.08rem;
}

.brand small {
    display: block;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.72);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 18px;
}

.nav-links a {
    color: rgba(255, 255, 255, 0.86);
    text-decoration: none;
    font-weight: 700;
}

.nav-links a:hover {
    color: #fff;
}

.btn,
button,
input[type="submit"] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: 0;
    border-radius: 999px;
    padding: 12px 22px;
    background: var(--teal);
    color: #fff;
    font-weight: 800;
    font-size: 1rem;
    line-height: 1;
    cursor: pointer;
    text-decoration: none;
    box-shadow: 0 10px 24px rgba(7, 93, 101, 0.22);
}

.btn:hover,
button:hover,
input[type="submit"]:hover {
    background: var(--teal-dark);
}

.btn.secondary {
    background: #eef7f8;
    color: var(--teal-dark);
    box-shadow: none;
}

.btn.danger {
    background: var(--danger);
}

.hero {
    color: #fff;
    padding: 56px 0 32px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    align-items: center;
    gap: 44px;
}

.logo-card {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(255, 247, 229, 0.96));
    border-radius: 36px;
    padding: 32px;
    box-shadow: var(--shadow);
    text-align: center;
}

.logo-card img {
    width: min(360px, 100%);
    border-radius: 50%;
}

.hero h1 {
    font-size: clamp(2.1rem, 5vw, 4.6rem);
    line-height: 0.98;
    margin: 0 0 18px;
    letter-spacing: -0.055em;
}

.hero p {
    font-size: 1.18rem;
    color: rgba(255, 255, 255, 0.86);
    margin: 0 0 22px;
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 24px;
}

.badge {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 999px;
    padding: 8px 12px;
    font-weight: 800;
    font-size: 0.86rem;
}

main {
    padding-bottom: 56px;
}

.card {
    background: var(--card);
    border-radius: 26px;
    padding: clamp(22px, 4vw, 42px);
    margin: 24px 0;
    box-shadow: var(--shadow);
    border: 1px solid rgba(255, 255, 255, 0.4);
}

.card h2,
.card h3 {
    margin-top: 0;
    line-height: 1.18;
    letter-spacing: -0.025em;
}

.card h2 {
    font-size: clamp(1.5rem, 3vw, 2.4rem);
}

.section-intro {
    color: var(--muted);
    margin-top: -8px;
}

.definition-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin-top: 20px;
}

.definition {
    background: #f3fafb;
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 18px;
}

.definition strong {
    display: block;
    color: var(--teal-dark);
    margin-bottom: 6px;
}

.rules-list {
    padding-left: 22px;
}

.rules-list li {
    margin-bottom: 10px;
}

.alert {
    border-radius: 18px;
    padding: 16px 18px;
    margin: 16px 0;
    font-weight: 700;
}

.alert.success {
    background: #eaf7ef;
    color: var(--success);
    border: 1px solid #bee7ce;
}

.alert.error {
    background: #fff0ef;
    color: var(--danger);
    border: 1px solid #ffd0cc;
}

.form-section {
    border-top: 1px solid var(--line);
    padding-top: 28px;
    margin-top: 28px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

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

label {
    display: block;
    font-weight: 800;
    margin-bottom: 7px;
}

.required::after {
    content: ' *';
    color: var(--red);
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="url"],
input[type="password"],
input[type="file"],
select,
textarea {
    width: 100%;
    border: 1px solid #c8d8dc;
    background: #fff;
    border-radius: 14px;
    padding: 12px 14px;
    font: inherit;
    color: var(--ink);
}

textarea {
    min-height: 130px;
    resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
    outline: 3px solid rgba(11, 122, 131, 0.18);
    border-color: var(--teal);
}

.checks {
    display: grid;
    gap: 12px;
}

.choice {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 14px;
    background: #fbfdfd;
    border: 1px solid var(--line);
    border-radius: 16px;
}

.choice input {
    margin-top: 5px;
}

.help {
    color: var(--muted);
    font-size: 0.92rem;
    margin-top: 6px;
}

.form-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    flex-wrap: wrap;
    margin-top: 30px;
}

.footer {
    color: rgba(255, 255, 255, 0.74);
    padding: 28px 0 44px;
    text-align: center;
}

.footer a {
    color: #fff;
}

.admin-layout {
    background: #f4f8f9;
    min-height: 100vh;
}

.admin-topbar {
    background: var(--bg);
    color: #fff;
    padding: 16px 0;
}

.admin-topbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.admin-nav {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.admin-nav a {
    color: #fff;
    text-decoration: none;
    font-weight: 800;
    opacity: 0.85;
}

.admin-nav a:hover {
    opacity: 1;
}

.admin-main {
    padding: 30px 0 56px;
}

.stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
}

.stat {
    background: #fff;
    border-radius: 18px;
    padding: 18px;
    border: 1px solid var(--line);
}

.stat strong {
    display: block;
    font-size: 2rem;
    line-height: 1;
    color: var(--teal-dark);
}

.table-wrap {
    overflow: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 850px;
}

th,
td {
    text-align: left;
    padding: 13px 12px;
    border-bottom: 1px solid var(--line);
    vertical-align: top;
}

th {
    color: var(--muted);
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-pill {
    display: inline-block;
    border-radius: 999px;
    padding: 4px 10px;
    background: #eef7f8;
    color: var(--teal-dark);
    font-weight: 800;
    font-size: 0.84rem;
}

.detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.detail-item {
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 14px;
    background: #fbfdfd;
}

.detail-item strong {
    display: block;
    color: var(--muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 4px;
}

.login-page {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
    background:
        radial-gradient(circle at top, rgba(245, 189, 39, 0.12), transparent 32rem),
        var(--bg);
}

.login-card {
    width: min(480px, 100%);
    background: #fff;
    border-radius: 26px;
    padding: 34px;
    box-shadow: var(--shadow);
}

.login-card .logo-small {
    width: 96px;
    height: 96px;
    border-radius: 999px;
    display: block;
    margin: 0 auto 18px;
}

@media (max-width: 860px) {
    .hero-grid,
    .definition-grid,
    .form-grid,
    .detail-grid,
    .stats {
        grid-template-columns: 1fr;
    }

    .header-inner,
    .nav-links {
        align-items: flex-start;
        flex-direction: column;
    }

    .nav-links {
        padding-bottom: 16px;
    }

    .hero {
        padding-top: 30px;
    }
}

@media print {
    .site-header,
    .admin-topbar,
    .form-actions,
    .btn,
    button {
        display: none !important;
    }

    body,
    .admin-layout {
        background: #fff;
    }

    .card {
        box-shadow: none;
        border: 0;
        padding: 0;
    }
}

/* Full-width public layout update */
.public-layout .container {
    width: 100%;
    max-width: none;
    padding-left: clamp(16px, 4vw, 72px);
    padding-right: clamp(16px, 4vw, 72px);
}

.public-layout .hero {
    min-height: 460px;
    display: flex;
    align-items: center;
}

.public-layout .hero-grid {
    width: 100%;
    grid-template-columns: minmax(260px, 0.65fr) minmax(420px, 1.35fr);
}

.public-layout .card {
    width: 100%;
}

.public-layout main.container {
    padding-bottom: 70px;
}

.public-layout .form-grid {
    grid-template-columns: repeat(2, minmax(260px, 1fr));
}

input[type="date"] {
    width: 100%;
    border: 1px solid #c8d8dc;
    background: #fff;
    border-radius: 14px;
    padding: 12px 14px;
    font: inherit;
    color: var(--ink);
}

/* Admin date builder */
.date-builder {
    border: 1px solid var(--line);
    background: #fbfdfd;
    border-radius: 18px;
    padding: 16px;
}

.date-builder-controls {
    display: grid;
    grid-template-columns: minmax(190px, 0.7fr) minmax(260px, 1fr) auto;
    gap: 14px;
    align-items: end;
    margin-bottom: 14px;
}

.date-builder-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.admin-date-preview {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}

.admin-date-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border-radius: 999px;
    background: #eef7f8;
    color: var(--teal-dark);
    border: 1px solid #cde7eb;
    padding: 8px 12px;
    font-weight: 800;
    font-size: 0.9rem;
}

.admin-date-chip button {
    padding: 3px 8px;
    font-size: 0.78rem;
    box-shadow: none;
}

/* Front-end market calendar */
.market-calendar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 20px;
    margin-top: 18px;
}

.calendar-month {
    background: #fbfdfd;
    border: 1px solid var(--line);
    border-radius: 22px;
    padding: 18px;
}

.calendar-month h4 {
    margin: 0 0 14px;
    color: var(--teal-dark);
    font-size: 1.18rem;
}

.calendar-weekdays,
.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 6px;
}

.calendar-weekdays span {
    text-align: center;
    color: var(--muted);
    font-size: 0.76rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.calendar-grid {
    margin-top: 8px;
}

.calendar-day {
    min-height: 76px;
    border-radius: 14px;
    border: 1px solid #e1ebee;
    background: #f6fafb;
    color: #a0b0b5;
    padding: 8px;
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
    position: relative;
}

.calendar-day.blank {
    border-color: transparent;
    background: transparent;
}

.calendar-day.disabled {
    opacity: 0.78;
}

.calendar-day.available {
    padding: 0;
    background: #fff;
    border-color: rgba(11, 122, 131, 0.28);
    color: var(--ink);
    cursor: pointer;
    overflow: hidden;
}

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

.calendar-day-body {
    width: 100%;
    min-height: 76px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: space-between;
    gap: 8px;
    padding: 8px;
    border: 2px solid transparent;
    border-radius: 14px;
    transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.calendar-day.available:hover .calendar-day-body {
    border-color: rgba(11, 122, 131, 0.45);
}

.calendar-date-input:checked + .calendar-day-body {
    background: var(--teal);
    color: #fff;
    border-color: var(--teal-dark);
}

.calendar-number {
    font-weight: 900;
    line-height: 1;
}

.calendar-status {
    font-size: 0.74rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.selected-date-summary {
    margin-top: 14px;
    padding: 14px 16px;
    border-radius: 16px;
    border: 1px solid var(--line);
    background: #f8fbfc;
    color: var(--muted);
    font-weight: 800;
}

.selected-date-summary.has-selection {
    color: var(--teal-dark);
    background: #eef7f8;
    border-color: #cde7eb;
}

.manual-date-options.with-calendar {
    margin-top: 22px;
}

@media (min-width: 1180px) {
    .public-layout .definition-grid {
        grid-template-columns: repeat(4, minmax(220px, 1fr));
    }

    .public-layout .market-calendar {
        grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    }
}

@media (max-width: 980px) {
    .public-layout .hero-grid,
    .public-layout .form-grid,
    .date-builder-controls {
        grid-template-columns: 1fr;
    }

    .public-layout .hero {
        min-height: auto;
    }
}

@media (max-width: 560px) {
    .market-calendar {
        grid-template-columns: 1fr;
    }

    .calendar-day,
    .calendar-day-body {
        min-height: 58px;
    }

    .calendar-status {
        font-size: 0.65rem;
    }
}