:root {
--bg-gradient: linear-gradient(135deg, #0b0f19 0%, #111827 100%);
    --card-bg: rgba(255, 255, 255, 0.06);
    --card-border: rgba(255, 255, 255, 0.1);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent: #38bdf8;
    --accent-hover: #7dd3fc;
    --radius: 16px;
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background: var(--bg-gradient);
    color: var(--text-primary);
    min-height: 100vh;
    padding: 2rem 1rem;
    display: flex;
    justify-content: center;
}

.app-container {
    width: 100%;
    max-width: 1100px;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Site navigation */
.site-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.site-brand,
.about-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
}

.site-brand { font-size: 1.1rem; }

.about-link {
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 0.65rem 1rem;
    transition: var(--transition);
}

.about-link:hover,
.about-link:focus-visible {
    border-color: var(--accent);
    color: var(--accent-hover);
}

.about-content {
    display: grid;
    gap: 1.5rem;
}

.about-intro { padding: clamp(1.5rem, 5vw, 3.5rem); }

.about-eyebrow {
    color: var(--accent);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    margin-bottom: 0.75rem;
}

.about-intro h1 {
    max-width: 15ch;
    font-size: clamp(2rem, 6vw, 3.5rem);
    line-height: 1.1;
    margin-bottom: 1rem;
}

.about-intro > p:not(.about-eyebrow),
.about-section > p {
    max-width: 70ch;
    color: var(--text-secondary);
    line-height: 1.7;
}

.about-cta {
    display: inline-block;
    margin-top: 1.5rem;
    padding: 0.8rem 1.1rem;
    border-radius: var(--radius);
    font-weight: 600;
    text-decoration: none;
}

.about-section h2 { margin-bottom: 1rem; }

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

.about-feature {
    padding: 1rem;
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.02);
}

.about-feature h3 { margin-bottom: 0.5rem; }

.about-feature p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.about-section a {
    color: var(--accent-hover);
    text-underline-offset: 0.2em;
}

.about-links strong { color: var(--text-primary); }

@media (max-width: 600px) {
    .site-nav { gap: 0.5rem; }
    .about-feature-grid { grid-template-columns: 1fr; }
}

/* Header & Inputs */
.dashboard-header {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: space-between;
    align-items: center;
}

.search-bar {
    display: flex;
    flex: 1;
    max-width: 500px;
    gap: 0.5rem;
}

input[type="text"], .unit-dropdown, .day-dropdown {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    color: var(--text-primary);
    outline: none;
    transition: var(--transition);
}

input[type="text"] { width: 100%; }
input[type="text"]:focus, .unit-dropdown:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.2);
}

button {
    cursor: pointer;
    border: none;
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius);
    transition: var(--transition);
    font-weight: 600;
}

.btn-search {
    background: var(--accent);
    color: #0f172a;
}
.btn-search:hover, .btn-search:focus { background: var(--accent-hover); }

.controls {
    display: flex;
    gap: 0.5rem;
}
.btn-secondary {
    background: var(--card-bg);
    color: var(--text-primary);
    border: 1px solid var(--card-border);
}
.btn-secondary:hover { background: rgba(255, 255, 255, 0.12); }

/* Layout Cards Architecture */
.card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(12px);
    border-radius: var(--radius);
    padding: 1.5rem;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@media(min-width: 900px) {
    .dashboard-grid {
        grid-template-columns: 2fr 1fr 1fr; /* Extends current block on left */
    }
}

/* Current Card Styling */
.current-header h1 { font-size: 2rem; margin-bottom: 0.25rem; }
.current-header p { color: var(--text-secondary); }
.current-temp-block {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin: 1.5rem 0;
}
.weather-icon-large { font-size: 4rem; }
.temp-display { font-size: 4.5rem; font-weight: 700; }
.weather-condition-text { font-size: 1.25rem; color: var(--accent); font-weight: 500; }

.status-message {
    margin-top: 0.75rem;
    min-height: 1.25rem;
    font-size: 0.9rem;
    font-weight: 500;
    display: block;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.status-message.info,
.status-message.success,
.status-message.error {
    opacity: 1;
}

.status-message.info {
    color: var(--accent-hover);
}

.status-message.success {
    color: #86efac;
}

.status-message.error {
    color: #fca5a5;
}

button:disabled,
select:disabled,
input:disabled {
    opacity: 0.7;
    cursor: wait;
}

/* Metrics Sub-Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}
.metric-box h3 { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 0.5rem; }
.metric-box p { font-size: 1.5rem; font-weight: 600; }

/* Hourly Horizontal Scroller */
.hourly-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}
.hourly-scroll-container {
    display: flex;
    gap: 1rem;
    overflow-x: auto;
    padding-bottom: 0.75rem;
    scroll-behavior: smooth;
}
.hourly-scroll-container::-webkit-scrollbar { height: 6px; }
.hourly-scroll-container::-webkit-scrollbar-thumb { background: var(--card-border); border-radius: 4px; }
.hourly-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--card-border);
    padding: 1rem;
    border-radius: var(--radius);
    min-width: 90px;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* Weekly List Layout */
.card-weekly { grid-column: span 1; }
@media(min-width: 768px) { .card-weekly { grid-column: span 2; } }
.weekly-list { display: flex; flex-direction: column; gap: 0.75rem; margin-top: 1rem; }
.weekly-row {
    display: grid;
    grid-template-columns: 1fr 50px 1fr;
    align-items: center;
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--radius);
    border: 1px solid var(--card-border);
}
.weekly-row .day-name { font-weight: 500; }
.weekly-row .weekly-temps { text-align: right; font-weight: 600; }
.weekly-row .weekly-temps span { color: var(--text-secondary); font-weight: 400; margin-left: 0.5rem; }

/* Responsive foundation */
html,
body {
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
}

.card,
.dashboard-grid,
.app-container,
.hourly-scroll-container {
    min-width: 0;
}

/* Hourly forecast: one row with controlled horizontal scrolling */
#hourly-container,
.hourly-scroll-container {
    display: grid;
    grid-auto-flow: column;
    grid-template-rows: 1fr;
    grid-auto-columns: minmax(90px, 1fr);
    gap: 0.75rem;
    width: 100%;
    max-width: 100%;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 0.25rem 0.1rem 0.75rem;
    overscroll-behavior-inline: contain;
    scroll-behavior: smooth;
    scrollbar-width: thin;
}

#hourly-container::-webkit-scrollbar,
.hourly-scroll-container::-webkit-scrollbar {
    height: 7px;
}

#hourly-container::-webkit-scrollbar-thumb,
.hourly-scroll-container::-webkit-scrollbar-thumb {
    background: var(--accent);
    border-radius: 999px;
}

.hourly-item {
    width: auto;
    min-width: 0;
    min-height: 88px;
    padding: 0.7rem 0.45rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    gap: 0.35rem;
    text-align: center;
    white-space: nowrap;
}

/* Keep weekly content inside its card */
#weekly-container,
.weekly-list {
    width: 100%;
    max-width: 100%;
    min-width: 0;
}

.weekly-row {
    width: 100%;
    min-width: 0;
}

/* Tablets */
@media (max-width: 899px) {
    body {
        padding: 1rem;
    }

    .dashboard-header {
        align-items: stretch;
    }

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

    .controls {
        width: 100%;
        justify-content: space-between;
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
    }

    .card-weekly {
        grid-column: span 1;
    }
}

/* Phones */
@media (max-width: 600px) {
    body {
        padding: 0.75rem;
    }

    .app-container {
        gap: 1rem;
    }

    .card {
        padding: 1rem;
        border-radius: 12px;
    }

    .dashboard-header {
        gap: 0.75rem;
    }

    .search-bar {
        display: grid;
        grid-template-columns: 1fr auto;
    }

    .controls {
        display: grid;
        grid-template-columns: 1fr 1fr;
    }

    .current-header h1 {
        font-size: 1.5rem;
    }

    .current-temp-block {
        gap: 0.75rem;
        margin: 1rem 0;
    }

    .weather-icon-large {
        font-size: 3rem;
    }

    .temp-display {
        font-size: 3.5rem;
    }

    .metrics-grid {
        gap: 0.6rem;
    }

    .metric-box p {
        font-size: 1.15rem;
    }

    #hourly-container,
    .hourly-scroll-container {
        grid-auto-columns: 84px;
        gap: 0.5rem;
    }

    .hourly-item {
        min-height: 82px;
        font-size: 0.8rem;
        padding: 0.6rem 0.3rem;
    }

    .weekly-row {
        grid-template-columns: minmax(0, 1fr) 40px minmax(0, 1fr);
        padding: 0.65rem 0.7rem;
        font-size: 0.85rem;
    }
}

/* Very small phones */
@media (max-width: 360px) {
    .search-bar {
        grid-template-columns: 1fr;
    }

    .btn-search {
        width: 100%;
    }

    .controls {
        grid-template-columns: 1fr;
    }

    .temp-display {
        font-size: 3rem;
    }
}