:root {
    color-scheme: dark;
    --bg: #080e1c;
    --surface: #101b33;
    --text: #e7eefb;
    --muted: #9bb0d1;
    --border: #25314f;
    --card: #121b30;
    --card-alt: #172744;
    --shadow: 0 28px 60px rgba(0, 0, 0, 0.35);
    --primary: #5f9dfd;
    --primary-soft: rgba(95, 157, 253, 0.18);
    --success: #3ad8a0;
    --info: #4ea5f8;
    --danger: #fb7676;
    --footer: #9cb0c8;
}

body {
    margin: 0;
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
    background: radial-gradient(circle at top, rgba(56, 189, 248, 0.08), transparent 32%), var(--bg);
    color: var(--text);
    line-height: 1.6;
}

body.light {
    color-scheme: light;
    --bg: #f8fafc;
    --surface: #ffffff;
    --text: #111827;
    --muted: #475569;
    --border: #d1d5db;
    --card: #ffffff;
    --card-alt: #f8fafc;
    --shadow: 0 18px 46px rgba(15, 23, 42, 0.08);
    --primary: #2563eb;
    --primary-soft: #eff6ff;
    --success: #16a34a;
    --info: #0284c7;
    --danger: #dc2626;
    --footer: #64748b;
}

* {
    box-sizing: border-box;
}

header {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 980px;
    margin: 0 auto;
    padding: 1rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.logo {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.logo:hover {
    color: var(--primary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.theme-toggle {
    border: 1px solid var(--border);
    background: var(--card-alt);
    color: var(--text);
    border-radius: 999px;
    padding: 0.55rem 1rem;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background 0.25s ease, border-color 0.25s ease;
}

.theme-toggle:hover {
    background: var(--primary-soft);
    border-color: var(--primary);
}

nav {
    display: flex;
    gap: 1rem;
}

nav a {
    color: var(--muted);
    text-decoration: none;
    font-size: 0.96rem;
    transition: color 0.2s ease;
}

nav a.active,
nav a:hover {
    color: var(--text);
}

main {
    max-width: 980px;
    margin: 0 auto;
    padding: 1.5rem 1rem 2rem;
}

.page-content {
    display: none;
}

.page-content.active {
    display: block;
    animation: fadeIn 0.25s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero {
    text-align: center;
    margin-bottom: 1.75rem;
}

.hero h1 {
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    margin-bottom: 0.5rem;
}

.hero p {
    font-size: 1rem;
    color: var(--muted);
    max-width: 680px;
    margin: 0 auto;
}

.section-title {
    margin: 1.5rem 0 1rem;
    font-size: 1.15rem;
    color: var(--text);
}

.timezone-section,
.search-section,
.current-incentive-section,
.incentivo-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 1.35rem;
}

.timezone-section,
.search-section {
    margin-bottom: 1.5rem;
}

.search-result-card,
.incentivo-card {
    box-shadow: 0 18px 45px rgba(0, 0, 0, 0.22);
}

.search-result-card {
    background: #151f36;
}

.timezone-section h3,
.search-section h3,
.current-incentive-section h3 {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--text);
}

.timezone-control,
.search-control {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
}

.timezone-control label {
    color: var(--text);
    font-weight: 500;
}

.timezone-control select,
.search-control select {
    flex: 1;
    min-width: 180px;
    padding: 0.85rem 1rem;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--card-alt);
    color: var(--text);
    font-size: 0.95rem;
}

.timezone-control select:hover,
.search-control select:hover {
    border-color: var(--primary);
}

#detectedTimezone {
    color: var(--muted);
    font-size: 0.88rem;
}

#searchResultsContainer {
    margin-top: 1.25rem;
}

.search-results-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(180px, 1fr));
    gap: 1rem;
    justify-items: center;
}

.search-result-card,
.incentivo-card {
    box-shadow: var(--shadow);
}

.search-results-section {
    text-align: center;
}

.search-result-card {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.search-result-card .search-result-date,
.search-result-card .search-result-time,
.search-result-card .search-result-duration {
    width: 100%;
}

.search-result-card {
    background: var(--card-alt);
}

.search-result-date {
    font-weight: 600;
    color: var(--text);
    margin-bottom: 0.45rem;
}

.search-result-time,
.incentivo-description,
.incentivo-dates,
.current-incentive-description {
    color: var(--muted);
}

.current-incentive-section {
    background: linear-gradient(180deg, rgba(96, 156, 253, 0.12), rgba(15, 23, 42, 0.95));
    border: 1px solid rgba(95, 157, 253, 0.3);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
    padding: 1.6rem;
}

.current-incentive-content {
    display: flex;
    gap: 1.5rem;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    text-align: center;
}

.current-incentive-icon {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 120px;
    height: 120px;
    margin: 0 auto;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.current-incentive-icon img {
    width: 88px;
    height: 88px;
    object-fit: contain;
}

.current-incentive-info {
    max-width: 540px;
}

.current-incentive-name {
    font-size: 1.25rem;
    margin-bottom: 0.55rem;
    font-weight: 700;
    color: #f8fbff;
}

.current-incentive-description {
    font-size: 0.98rem;
    line-height: 1.75;
    color: var(--muted);
    margin-bottom: 1rem;
}

.current-incentive-time {
    display: grid;
    gap: 0.5rem;
    font-size: 0.95rem;
}

.current-incentive-time-label {
    color: var(--muted);
    font-size: 0.82rem;
    font-weight: 600;
}

.current-incentive-time-value {
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
}

.current-incentive-time-value strong {
    font-size: 1.05rem;
}

.current-incentive-time-label,
.duration-label,
.date-label,
.countdown-label {
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 500;
}

.current-incentive-time-value,
.duration-value,
.countdown-value,
.date-value {
    color: var(--text);
    font-weight: 600;
}

.no-active-incentive {
    text-align: center;
    color: var(--muted);
}

#incentivosContainer {
    display: grid;
    grid-template-columns: repeat(2, minmax(260px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

@media (max-width: 900px) {
    #incentivosContainer {
        grid-template-columns: repeat(2, minmax(200px, 1fr));
    }
}

@media (max-width: 700px) {
    #incentivosContainer {
        grid-template-columns: 1fr;
    }
}

.incentivo-card {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
}

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

.incentivo-card.active {
    border-color: rgba(58, 216, 160, 0.35);
    background: rgba(58, 216, 160, 0.12);
}

.incentivo-card.upcoming {
    border-color: rgba(78, 165, 248, 0.35);
    background: rgba(78, 165, 248, 0.12);
}

.incentivo-card.expired {
    opacity: 0.92;
    border-color: rgba(156, 168, 200, 0.35);
    background: rgba(156, 168, 200, 0.08);
}

.incentivo-card .incentivo-name,
.incentivo-card .incentivo-description,
.incentivo-card .incentivo-duration,
.incentivo-card .incentivo-dates,
.incentivo-card .countdown {
    width: 100%;
}

.incentivo-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 0.5rem;
    text-align: center;
}

.incentivo-description {
    margin-bottom: 0.75rem;
    color: var(--muted);
    text-align: center;
}

.incentivo-dates {
    display: grid;
    grid-template-columns: minmax(130px, 1fr) minmax(130px, 1fr);
    gap: 0.35rem 1rem;
    justify-items: center;
    text-align: center;
    margin-bottom: 0.75rem;
}

.date-label {
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 700;
}

.date-value {
    color: var(--text);
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 0;
}

@media (max-width: 700px) {
    .incentivo-dates {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .date-label,
    .date-value {
        text-align: center;
    }
}

.status-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.32rem 0.85rem;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 700;
    margin: 0 auto 0.75rem;
    letter-spacing: 0.02em;
}

.status-active {
    background: rgba(58, 216, 160, 0.18);
    color: #b7f8de;
}

.status-upcoming {
    background: rgba(78, 165, 248, 0.18);
    color: #c7e6ff;
}

.status-expired {
    background: rgba(251, 118, 118, 0.18);
    color: #fed7d7;
}

.incentivo-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--card-alt);
    border-radius: 14px;
}

.incentivo-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 0.5rem;
}

.incentivo-description {
    margin-bottom: 0.75rem;
}

.incentivo-duration,
.countdown {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.35rem;
    padding: 0.6rem 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    margin-bottom: 0.8rem;
    font-size: 0.9rem;
}

.incentivo-duration .duration-label,
.incentivo-duration .duration-value,
.countdown .countdown-label,
.countdown .countdown-value {
    width: 100%;
    text-align: center;
}

.countdown-value {
    font-size: 1rem;
}

.load-more-container {
    justify-content: center;
}

.btn-load-more {
    padding: 0.95rem 2rem;
    border-radius: 999px;
    background: linear-gradient(135deg, #5d7dff, #3a95ff);
    color: #fff;
    border: 1px solid rgba(91, 123, 255, 0.4);
    box-shadow: 0 16px 48px rgba(42, 105, 255, 0.22);
    font-size: 0.98rem;
    font-weight: 700;
    transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.btn-load-more:hover {
    background: linear-gradient(135deg, #4f6ff7, #2d84ff);
    transform: translateY(-1px);
    box-shadow: 0 20px 55px rgba(42, 105, 255, 0.28);
}

.btn-load-more:focus-visible {
    outline: 2px solid rgba(96, 156, 253, 0.7);
    outline-offset: 4px;
}

footer {
    text-align: center;
    padding: 1.5rem 1rem;
    color: var(--footer);
    border-top: 1px solid var(--border);
    margin-top: 2rem;
    font-size: 0.95rem;
}

@media (max-width: 880px) {
    .header-content,
    main {
        padding-left: 1rem;
        padding-right: 1rem;
    }
}

@media (max-width: 700px) {
    .header-content {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
    }

    .header-actions {
        justify-content: center;
    }

    .hero h1 {
        font-size: 1.9rem;
    }

    .current-incentive-content {
        flex-direction: column;
        text-align: center;
    }

    .timezone-control,
    .search-control {
        flex-direction: column;
        align-items: stretch;
    }
}

@media (max-width: 560px) {
    #incentivosContainer {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 520px) {
    .theme-toggle,
    nav a {
        width: 100%;
        text-align: center;
    }

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

    .timezone-section,
    .search-section,
    .current-incentive-section {
        padding: 1rem;
    }

    .incentivo-duration,
    .countdown {
        flex-direction: column;
        align-items: flex-start;
    }
}