/* =========================================================
   Weather.md — CALM theme (light) + DARK theme
   Soft, restful look. Dark mode uses the same layout,
   only the colour tokens change (body.dark-mode).
   ========================================================= */

/* ---------- Design tokens (light) ---------- */
:root {
    --bg-1: #eef4f1;
    --bg-2: #e9f0f5;
    --halo-1: #f6fbf8;
    --halo-2: #e8f0f7;
    --surface: rgba(255, 255, 255, 0.74);
    --surface-2: rgba(255, 255, 255, 0.55);
    --search-bg: rgba(255, 255, 255, 0.85);
    --hover-bg: rgba(255, 255, 255, 0.8);
    --border: rgba(58, 90, 76, 0.10);
    --border-strong: rgba(58, 90, 76, 0.22);
    --focus-ring: rgba(111, 159, 134, 0.15);
    --text: #33443d;
    --muted: #8a9c93;
    --accent: #6f9f86;
    --accent-strong: #5d8a72;
    --danger: #c0736f;
    --radius: 22px;
    --radius-sm: 16px;
    --gap: 22px;
    --shadow: 0 12px 34px rgba(45, 64, 56, 0.08);
    --font: "Segoe UI", system-ui, -apple-system, Arial, sans-serif;
}

/* ---------- Design tokens (dark) ---------- */
body.dark-mode {
    --bg-1: #101c18;
    --bg-2: #0a1512;
    --halo-1: rgba(111, 159, 134, 0.16);
    --halo-2: rgba(84, 130, 160, 0.12);
    --surface: rgba(26, 48, 39, 0.72);
    --surface-2: rgba(32, 58, 47, 0.55);
    --search-bg: rgba(0, 0, 0, 0.22);
    --hover-bg: rgba(255, 255, 255, 0.07);
    --border: rgba(134, 192, 163, 0.14);
    --border-strong: rgba(134, 192, 163, 0.32);
    --focus-ring: rgba(134, 192, 163, 0.22);
    --text: #e5f1ea;
    --muted: #90ab9d;
    --accent: #5f8f77;
    --accent-strong: #8ecdb0;
    --danger: #e08a86;
    --shadow: 0 14px 34px rgba(0, 0, 0, 0.4);
}

/* ---------- Base ---------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font);
    color: var(--text);
    min-height: 100vh;
    padding: 28px;
    background-color: var(--bg-1);
    /* soft, calm wash of colour */
    background-image:
        radial-gradient(1200px 700px at 8% -12%, var(--halo-1), transparent 60%),
        radial-gradient(1000px 700px at 105% -5%, var(--halo-2), transparent 55%),
        linear-gradient(180deg, var(--bg-1) 0%, var(--bg-2) 100%);
    background-attachment: fixed;
    -webkit-font-smoothing: antialiased;
    transition: background-color 0.3s, color 0.3s;
}

.container {
    max-width: 1080px;
    margin: 0 auto;
}

/* ---------- SVG icons ---------- */
.icon-sprite {
    position: absolute;
    width: 0;
    height: 0;
    overflow: hidden;
}

.icon {
    width: 1em;
    height: 1em;
    display: inline-block;
    vertical-align: -0.15em;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.6;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* ---------- Header ---------- */
header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: var(--gap);
    padding: 16px 20px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: background-color 0.3s, border-color 0.3s;
}

header h1 {
    font-size: 22px;
    font-weight: 600;
    letter-spacing: 0.4px;
    color: var(--text);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 8px; /* small gap between Current Location and the theme button */
}

/* ---------- Layout ---------- */
.dashboard {
    display: flex;
    flex-direction: column;
    gap: var(--gap);
}

.dashboard-row {
    display: grid;
    gap: var(--gap);
}

.row-top {
    grid-template-columns: repeat(3, 1fr);
}

.row-bottom {
    grid-template-columns: 1fr;
}

/* ---------- Cards ---------- */
.card {
    position: relative;
    min-width: 0; /* lets the card shrink instead of forcing its grid column wider */
    text-align: center;
    padding: 26px 22px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: background-color 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.card-title {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 18px;
}

/* ---------- Search ---------- */
.search-section {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    max-width: 420px;
    background: var(--search-bg);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 6px 6px 6px 16px;
    transition: border-color 0.25s, box-shadow 0.25s, background-color 0.3s;
}

.search-section:focus-within {
    border-color: var(--border-strong);
    box-shadow: 0 0 0 3px var(--focus-ring);
}

#cityInput {
    flex: 1;
    min-width: 0;
    padding: 9px 4px;
    font-size: 15px;
    color: var(--text);
    background: transparent;
    border: none;
    outline: none;
}

#cityInput::placeholder {
    color: var(--muted);
}

/* ---------- Buttons (search + current location) ---------- */
#searchBtn,
.location-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.3px;
    color: #ffffff;
    background-color: var(--accent);
    border: none;
    border-radius: 999px;
    cursor: pointer;
    transition: background-color 0.25s;
}

#searchBtn:hover,
.location-btn:hover {
    background-color: var(--accent-strong);
}

.location-icon {
    display: inline-flex;
    font-size: 15px;
    line-height: 1;
}

/* ---------- Theme toggle button ---------- */
.theme-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    font-size: 18px;
    color: var(--text);
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 999px;
    cursor: pointer;
    transition: background-color 0.25s, border-color 0.25s, color 0.25s;
}

.theme-btn:hover {
    background: var(--hover-bg);
    border-color: var(--border-strong);
}

/* ---------- Loading & Error ---------- */
#loading {
    text-align: center;
    font-size: 13px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--muted);
    margin: 18px 0;
}

#error {
    text-align: center;
    font-size: 14px;
    color: var(--danger);
    margin: 18px 0;
    padding: 14px 16px;
    background: rgba(192, 115, 111, 0.08);
    border: 1px solid rgba(192, 115, 111, 0.25);
    border-radius: var(--radius-sm);
}

.hidden {
    display: none !important;
}

/* ---------- Live Time card (the calm hero) ---------- */
.clock-time {
    font-variant-numeric: tabular-nums;
    font-size: 46px;
    font-weight: 300;
    letter-spacing: 2px;
    color: var(--text);
}

.clock-date {
    font-size: 15px;
    letter-spacing: 0.3px;
    color: var(--muted);
    margin-top: 10px;
}

.time-icon {
    font-size: 46px;
    margin-top: 16px;
    color: var(--accent);
}

.time-label {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--muted);
    margin-top: 6px;
}

/* ---------- Today's Weather card ---------- */
.location {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 17px;
    font-weight: 600;
    letter-spacing: 0.2px;
    color: var(--text);
    text-align: left;
    margin-bottom: 14px;
}

.location .icon {
    color: var(--accent);
}

.weather-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.weather-icon {
    font-size: 42px;
    color: var(--accent-strong);
}

.temperature {
    font-variant-numeric: tabular-nums;
    font-size: 42px;
    font-weight: 300;
    color: var(--text);
}

.condition {
    font-size: 15px;
    color: var(--muted);
    text-transform: capitalize;
}

.weather-details {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 8px;
    margin-top: 22px;
    padding-top: 18px;
    border-top: 1px solid var(--border);
}

.detail {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}

.detail-label {
    font-size: 10px;
    letter-spacing: 0.6px;
    text-transform: uppercase;
    color: var(--muted);
}

.detail-value {
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
}

/* ---------- AQI + UV card ---------- */
.aqi-block {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.aqi-label {
    font-size: 11px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--muted);
}

.aqi-value,
.uv-value {
    font-variant-numeric: tabular-nums;
    font-size: 32px;
    font-weight: 300;
    color: var(--accent-strong);
}

.aqi-text {
    font-size: 12px;
    font-weight: 600;
    color: var(--muted);
}

/* UV: two columns — value on top, label below */
.uv-block {
    display: flex;
    justify-content: space-around;
    gap: 16px;
}

.uv-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.uv-group .uv-value {
    font-size: 34px;
}

.uv-group .uv-text {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--muted);
}

.aqi-divider {
    height: 1px;
    background: var(--border);
    margin: 18px 0;
}

/* ---------- 6-Day Forecast card ---------- */
.forecast-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
}

.forecast-card {
    flex: 1 1 120px;
    max-width: 180px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 16px;
    text-align: center;
    transition: background-color 0.25s, border-color 0.25s;
}

.forecast-card:hover {
    background: var(--hover-bg);
    border-color: var(--border-strong);
}

.forecast-day {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 8px;
}

.forecast-icon {
    font-size: 26px;
    margin: 6px 0;
    color: var(--accent-strong);
}

.forecast-temps {
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
}

.placeholder-text {
    color: var(--muted);
    font-size: 14px;
    padding: 8px 0;
}

/* ---------- Other Cities card ---------- */
.cities-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
}

.city-card {
    flex: 1 1 120px;
    max-width: 180px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 16px;
    text-align: center;
    transition: background-color 0.25s, border-color 0.25s;
}

.city-card:hover {
    background: var(--hover-bg);
    border-color: var(--border-strong);
}

.city-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 6px;
}

.city-temp {
    font-variant-numeric: tabular-nums;
    font-size: 24px;
    font-weight: 300;
    color: var(--accent-strong);
}

.city-icon {
    font-size: 24px;
    margin-top: 6px;
    color: var(--accent-strong);
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
    .row-top {
        grid-template-columns: repeat(2, 1fr);
    }

    .aqi-card {
        grid-column: span 2;
    }

    .row-bottom {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    body {
        padding: 16px;
    }

    header {
        flex-direction: column;
        align-items: stretch;
    }

    header h1 {
        font-size: 20px;
    }

    .search-section {
        flex: none;
        max-width: 100%;
    }

    .header-actions {
        width: 100%;
    }

    .location-btn {
        flex: 1;
        justify-content: center;
    }

    .row-top {
        grid-template-columns: 1fr;
    }

    .aqi-card {
        grid-column: auto;
    }

    .clock-time {
        font-size: 38px;
    }

    .temperature {
        font-size: 38px;
    }
}