:root {
    --bg-top: #f4f7fb;
    --bg-bottom: #dfe9f5;
    --surface: rgba(255, 255, 255, 0.78);
    --surface-strong: rgba(255, 255, 255, 0.92);
    --border: rgba(102, 126, 234, 0.16);
    --text-main: #182230;
    --text-muted: #5f6f83;
    --accent: #1d6fdc;
    --accent-strong: #1558af;
    --accent-soft: rgba(29, 111, 220, 0.1);
    --danger: #b53f58;
    --shadow-lg: 0 24px 60px rgba(34, 56, 90, 0.16);
    --shadow-md: 0 16px 40px rgba(34, 56, 90, 0.1);
    --radius-xl: 28px;
    --radius-lg: 20px;
    --radius-md: 14px;
    --container: 1120px;
}

* {
    box-sizing: border-box;
}

html {
    font-size: 16px;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Plus Jakarta Sans", "Segoe UI", sans-serif;
    color: var(--text-main);
    background:
        radial-gradient(circle at top left, rgba(115, 160, 255, 0.28), transparent 34%),
        radial-gradient(circle at right, rgba(123, 211, 195, 0.18), transparent 30%),
        linear-gradient(180deg, var(--bg-top), var(--bg-bottom));
}

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

button,
input {
    font: inherit;
}

.page-shell {
    width: min(calc(100% - 2rem), var(--container));
    margin: 0 auto;
    padding: 32px 0 56px;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-bottom: 28px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.brand-mark {
    width: 42px;
    height: 42px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, #1d6fdc, #70b5ff);
    color: #fff;
    box-shadow: 0 12px 24px rgba(29, 111, 220, 0.24);
}

.topbar-link {
    color: var(--text-muted);
    font-weight: 600;
}

.hero-grid,
.content-grid {
    display: grid;
    gap: 24px;
}

.hero-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
    align-items: stretch;
}

.content-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
    align-items: start;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(16px);
}

.panel {
    padding: 32px;
}

.eyebrow {
    margin: 0 0 14px;
    color: var(--accent);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.hero-title,
.section-title {
    margin: 0;
    font-family: "Newsreader", Georgia, serif;
    line-height: 1.02;
}

.hero-title {
    max-width: 11ch;
    font-size: clamp(2.6rem, 4vw, 4.8rem);
}

.section-title {
    font-size: clamp(2.1rem, 3vw, 3.2rem);
}

.lead,
.section-copy,
.muted-text {
    color: var(--text-muted);
    line-height: 1.7;
}

.lead {
    max-width: 54ch;
    margin: 18px 0 0;
    font-size: 1.05rem;
}

.section-copy {
    margin: 14px 0 0;
}

.feature-list,
.status-list {
    display: grid;
    gap: 14px;
    margin-top: 28px;
}

.feature-item,
.status-item {
    padding: 16px 18px;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.58);
    border: 1px solid rgba(102, 126, 234, 0.08);
}

.feature-item strong,
.status-item strong {
    display: block;
    margin-bottom: 6px;
    font-size: 0.98rem;
}

.label {
    display: inline-block;
    margin-bottom: 10px;
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--text-main);
}

.search-form,
.inline-search {
    display: grid;
    gap: 14px;
}

.search-field {
    width: 100%;
    padding: 1rem 1.1rem;
    border: 1px solid rgba(76, 99, 138, 0.18);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.94);
    color: var(--text-main);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.search-field:focus {
    outline: none;
    border-color: rgba(29, 111, 220, 0.45);
    box-shadow: 0 0 0 5px rgba(29, 111, 220, 0.1);
    transform: translateY(-1px);
}

.button-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.button {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    min-height: 50px;
    padding: 0.9rem 1.3rem;
    border: none;
    border-radius: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.button:hover {
    transform: translateY(-1px);
}

.button-primary {
    color: #fff;
    background: linear-gradient(135deg, var(--accent), #4d9ef5);
    box-shadow: 0 14px 28px rgba(29, 111, 220, 0.22);
}

.button-primary:hover {
    box-shadow: 0 18px 30px rgba(29, 111, 220, 0.28);
}

.button-secondary {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(76, 99, 138, 0.14);
}

.button-secondary:hover {
    background: var(--surface-strong);
}

.search-card {
    padding: 24px;
    background: var(--surface-strong);
}

.weather-card {
    overflow: hidden;
}

.weather-summary {
    padding: 32px;
    background: linear-gradient(135deg, rgba(29, 111, 220, 0.95), rgba(90, 160, 249, 0.9));
    color: #fff;
}

.weather-summary .eyebrow,
.weather-summary .muted-text {
    color: rgba(255, 255, 255, 0.82);
}

.weather-location {
    margin: 10px 0 18px;
    font-family: "Newsreader", Georgia, serif;
    font-size: clamp(2rem, 3vw, 3rem);
}

.weather-temp {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 10px;
}

.weather-temp strong {
    font-size: clamp(3.6rem, 7vw, 5.6rem);
    line-height: 0.9;
}

.weather-temp span {
    margin-top: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    opacity: 0.92;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    padding: 24px 32px 32px;
}

.stat-card {
    padding: 20px;
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(102, 126, 234, 0.08);
    box-shadow: var(--shadow-md);
}

.stat-label {
    display: block;
    margin-bottom: 10px;
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: -0.03em;
}

.stat-value small {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-muted);
}

.error-card {
    max-width: 760px;
    margin: 6vh auto 0;
}

.error-copy {
    margin: 18px 0 24px;
    padding: 18px 20px;
    border-radius: var(--radius-md);
    background: rgba(181, 63, 88, 0.08);
    border: 1px solid rgba(181, 63, 88, 0.14);
    color: var(--danger);
    font-weight: 600;
}

.footer-note {
    margin-top: 18px;
    color: var(--text-muted);
    font-size: 0.92rem;
}

@media (max-width: 960px) {
    .hero-grid,
    .content-grid,
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .panel,
    .weather-summary,
    .stats-grid {
        padding: 24px;
    }

    .topbar {
        margin-bottom: 20px;
    }
}

@media (max-width: 640px) {
    .page-shell {
        width: min(calc(100% - 1rem), var(--container));
        padding-top: 18px;
        padding-bottom: 28px;
    }

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

    .button-row {
        flex-direction: column;
    }

    .button {
        width: 100%;
    }
}