/* --- Base & Typography --- */
:root {
    --bg-color: #020617;
    --card-color: rgba(30, 41, 59, 0.4);
    --card-hover-color: rgba(30, 41, 59, 0.6);
    --card-border-color: rgba(255, 255, 255, 0.05);
    --text-primary: #e2e8f0; /* slate-200 */
    --text-secondary: #94a3b8; /* slate-400 */
    --text-muted: #64748b; /* slate-500 */
    --accent-blue: #3b82f6;
    --accent-cyan: #06b6d4;
    --accent-red: #f87171;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-sans);
    margin: 0;
    padding: 1rem;
    min-height: 100vh;
    overflow-x: hidden;
}

h1 {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    color: white;
    margin: 0;
}

p {
    margin: 0;
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* --- Layout & Container --- */
.container {
    max-width: 1400px;
    margin: 0 auto;
}

.hidden {
    display: none !important;
}

/* --- Background Effects --- */
.background-ambience {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
}
.bg-shape1 {
    position: absolute;
    top: -20%;
    left: 10%;
    width: 1000px;
    height: 1000px;
    background-color: rgba(30, 58, 138, 0.15);
    border-radius: 9999px;
    filter: blur(120px);
    opacity: 0.6;
}
.bg-shape2 {
    position: absolute;
    bottom: -20%;
    right: 10%;
    width: 800px;
    height: 800px;
    background-color: rgba(49, 46, 129, 0.15);
    border-radius: 9999px;
    filter: blur(100px);
    opacity: 0.5;
}


/* --- Header & Search --- */
.header {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
    align-items: center;
    justify-content: space-between;
}
.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.logo-icon-wrapper {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 1rem;
    background: linear-gradient(to top right, #2563eb, #06b6d4);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 15px -3px rgba(59, 130, 246, 0.2), 0 4px 6px -2px rgba(59, 130, 246, 0.1);
}
.logo-icon-wrapper i { color: white; }

.search-form {
    position: relative;
    width: 100%;
    max-width: 400px;
}
.search-actions {
    display: flex;
    flex-direction: row;
    gap: 0.75rem;
    width: 100%;
    max-width: 650px;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}
.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 1rem;
    height: 1rem;
    color: var(--text-muted);
    transition: color 0.3s;
}
.search-form:focus-within .search-icon {
    color: var(--accent-blue);
}
#search-input {
    width: 100%;
    background-color: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--card-border-color);
    border-radius: 9999px;
    padding: 0.875rem 1.25rem 0.875rem 2.75rem;
    font-size: 0.875rem;
    color: var(--text-primary);
    transition: all 0.3s;
}
#search-input::placeholder { color: #475569; }
#search-input:focus {
    outline: none;
    background-color: rgba(30, 41, 59, 0.5);
    border-color: rgba(59, 130, 246, 0.3);
}
.geo-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(90deg, #2563eb, #0ea5e9);
    color: white;
    border: none;
    border-radius: 9999px;
    padding: 0.85rem 1.25rem;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
    box-shadow: 0 10px 25px -10px rgba(59, 130, 246, 0.5);
}
.geo-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 15px 30px -12px rgba(59, 130, 246, 0.6);
}
.geo-button:active {
    transform: translateY(0);
}
.geo-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}
.geo-button svg {
    width: 1rem;
    height: 1rem;
}

/* --- Grid System --- */
.main-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.75rem;
}
.main-column-cities { display: flex; flex-direction: column; gap: 1.5rem; align-self: flex-start; }
.main-column-left { display: flex; flex-direction: column; gap: 1.5rem; align-self: flex-start; }
.main-column-right { display: grid; grid-template-columns: 1fr; gap: 1.5rem; align-self: flex-start; }

.mini-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1rem;
}

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

.cities-card {
    border: 1px solid var(--card-border-color);
}
.cities-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.75rem;
}
.city-tile {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    padding: 0.75rem 0.9rem;
    border-radius: 0.9rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--card-border-color);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.02);
}
.city-info {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}
.city-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.95rem;
}
.city-meta {
    color: var(--text-muted);
    font-size: 0.8rem;
}
.city-temp {
    font-weight: 700;
    color: var(--text-primary);
    font-size: 1.1rem;
}
.city-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
}

.insight-inline {
    margin-top: 1rem;
    padding: 0.85rem 1rem;
    border-radius: 0.9rem;
    background: rgba(255,255,255,0.02);
    border: 1px solid var(--card-border-color);
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}
.insight-title {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    color: var(--text-primary);
}
.insight-title .lucide { width: 1rem; height: 1rem; }
.insight-text {
    margin: 0;
    color: var(--text-primary);
    line-height: 1.5;
}

.chart-card {
    width: 100%;
    min-height: 150px;
}
.chart-card > div {
    height: 100%;
}

/* --- Card Component --- */
.card {
    position: relative;
    border-radius: 24px;
    padding: 1.25rem;
    background-color: var(--card-color);
    border: 1px solid var(--card-border-color);
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    transition: background-color 0.5s;
    backdrop-filter: blur(16px);
}
.daylight-card { padding: 1rem 1.25rem; }
.card:hover {
    background-color: var(--card-hover-color);
}
.card.glowing {
    background: linear-gradient(to bottom right, rgba(30, 41, 59, 0.8), rgba(15, 23, 42, 0.9));
    border-color: rgba(59, 130, 246, 0.1);
    box-shadow: 0 20px 40px -10px rgba(0,0,0,0.3);
}
.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}
.card-title {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    color: rgba(156, 163, 175, 0.4);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.2em;
}

/* --- Main Weather Card --- */
#main-card { min-height: unset; display: flex; flex-direction: column; gap: 1.5rem; padding: 1.75rem;}
.temp-display {
    display: flex;
    align-items: flex-end;
    gap: 1.25rem;
    flex-wrap: wrap;
}
.hero-weather-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.95;
}
.hero-weather-icon svg {
    width: 64px;
    height: 64px;
    filter: drop-shadow(0 10px 20px rgba(0,0,0,0.25));
}

#weather-chart-container {
    min-height: 200px;
    max-height: 240px;
    overflow: hidden;
}
#precip-chart-container,
#uv-chart-container {
    min-height: 140px;
    max-height: 180px;
    overflow: hidden;
}
.location-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: rgba(255,255,255,0.05);
    border: 1px solid var(--card-border-color);
    padding: 0.375rem 1rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
    margin-bottom: 2rem;
}
.location-badge i { width: 14px; height: 14px; color: var(--accent-blue); }
#current-temp {
    font-size: 7rem;
    line-height: 1;
    font-weight: 800;
    letter-spacing: -0.05em;
    color: transparent;
    background: linear-gradient(to bottom right, white, #9ca3af);
    -webkit-background-clip: text;
    background-clip: text;
    filter: drop-shadow(0 10px 8px rgba(0,0,0,0.2));
}
.condition {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 1rem;
    font-size: 1.25rem;
    font-weight: 500;
    color: #cbd5e1; /* blue-200ish */
}
#main-weather-icon svg { width: 2rem; height: 2rem; }
.temp-range {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--card-border-color);
}
.range-item { display: flex; flex-direction: column; }
.range-item span:first-child { font-size: 0.75rem; color: var(--text-muted); font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 0.25rem; }
.range-item div { display: flex; align-items: center; gap: 0.5rem; font-size: 1.125rem; font-weight: 600; color: var(--text-primary); }
.range-item i { width: 1rem; height: 1rem; }
.text-red { color: var(--accent-red); }
.text-cyan { color: var(--accent-cyan); }


/* --- Mini Stats --- */
.mini-stat {
    display: flex;
    flex-direction: column;
    padding: 0.875rem 1rem;
    border-radius: 1rem;
    background-color: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.03);
    transition: background-color 0.3s;
}
.mini-stat:hover { background-color: rgba(255,255,255,0.06); }
.mini-stat i { width: 1.25rem; height: 1.25rem; color: var(--text-muted); margin-bottom: 0.75rem; transition: color 0.3s; }
.mini-stat:hover i { color: var(--accent-blue); }
.mini-stat .value { font-size: 1.25rem; font-weight: 600; color: var(--text-primary); }
.mini-stat .label { font-size: 10px; text-transform: uppercase; font-weight: 700; letter-spacing: 0.05em; color: var(--text-muted); transition: color 0.3s; }
.mini-stat:hover .label { color: var(--text-secondary); }

/* --- Weather Chart --- */
#weather-chart-container {
    width: 100%;
    height: 240px; /* Adjusted height to fit content */
}
.chart-legend { display: flex; gap: 1.5rem; font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-muted); }
.dot { display: inline-block; width: 0.5rem; height: 0.5rem; border-radius: 9999px; margin-right: 0.5rem; }
.dot.temp { background-color: var(--accent-blue); }
.dot.rain { background-color: rgba(59, 130, 246, 0.5); border-radius: 2px; }

/* --- Forecast List --- */
.forecast-list { display: flex; flex-direction: column; gap: 0.25rem; }
.forecast-item { display: flex; align-items: center; justify-content: space-between; padding: 0.65rem; border-radius: 0.75rem; transition: background-color 0.3s; }
.forecast-item:hover { background-color: rgba(255,255,255,0.03); }
.forecast-day { width: 6rem; }
.forecast-day .day { font-size: 0.875rem; font-weight: 600; }
.forecast-day .date { font-size: 10px; color: var(--text-muted); margin-top: 2px; }
.forecast-day .day.today { color: var(--accent-blue); }
.forecast-icon { width: 3rem; display: flex; justify-content: center; }
.forecast-icon svg { opacity: 0.8; transition: all 0.3s; }
.forecast-item:hover .forecast-icon svg { opacity: 1; transform: scale(1.1); }
.forecast-precip { width: 5rem; display: flex; justify-content: center; }
.precip-badge { display: flex; align-items: center; gap: 0.35rem; font-size: 10px; padding: 4px 10px; border-radius: 9999px; border: 1px solid; }
.precip-badge.rain { background-color: rgba(59,130,246,0.1); color: #93c5fd; border-color: rgba(59,130,246,0.2); }
.precip-badge.snow { background-color: rgba(6,182,212,0.1); color: #67e8f9; border-color: rgba(6,182,212,0.2); }
.precip-badge i { width: 12px; height: 12px; }
.forecast-temps { display: flex; gap: 0.75rem; width: 6rem; justify-content: flex-end; font-size: 0.875rem; font-weight: 500; align-items: center; }
.forecast-temps .min-temp { color: var(--text-muted); }

/* --- Astro Card --- */
.astro-card { display: flex; justify-content: space-around; align-items: center; margin: 1.25rem 0; }
.astro-item { text-align: center; }
.astro-item span:first-of-type { font-size: 1.25rem; font-weight: 700; display: block; }
.astro-item span:last-of-type { font-size: 10px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-muted); margin-top: 4px; display: block; }
.astro-icon { margin: 0 auto 0.5rem auto; width: fit-content; padding: 0.5rem; border-radius: 9999px; border: 1px solid; }
.astro-icon.sun { background-color: rgba(245, 158, 11, 0.1); border-color: rgba(245, 158, 11, 0.2); color: #fcd34d; }
.astro-icon.moon { background-color: rgba(99, 102, 241, 0.1); border-color: rgba(99, 102, 241, 0.2); color: #a5b4fc; }
.astro-divider { flex: 1; height: 1px; background: linear-gradient(to right, transparent, var(--card-border-color), transparent); margin: 0 1.5rem; }
.day-status { margin-top: 1rem; font-size: 0.75rem; font-weight: 500; background-color: rgba(255,255,255,0.03); padding: 0.5rem 1rem; border-radius: 9999px; text-align: center; }

/* --- Loader & Error --- */
.loader-container {
    position: fixed;
    inset: 0;
    background-color: var(--bg-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 100;
}
.loader-icon {
    width: 2.5rem;
    height: 2.5rem;
    color: var(--accent-blue);
    animation: spin 1s linear infinite;
}
.loader-container p { color: var(--text-muted); animation: pulse 1.5s infinite; }
.error-message {
    max-width: 1400px;
    margin: 0 auto 1.5rem auto;
    padding: 1rem;
    border-radius: 0.75rem;
    background-color: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: #fca5a5;
    text-align: center;
}

/* --- Lucide Icons --- */
.lucide {
    width: 1.25rem;
    height: 1.25rem;
}

/* --- Animations --- */
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@keyframes pulse { 50% { opacity: 0.5; } }

/* --- Responsive Design --- */
@media (min-width: 768px) {
    body { padding: 2rem; }
    .header { flex-direction: row; }
    .main-grid { grid-template-columns: 260px 1fr; }
    .main-column-cities { grid-column: 1; }
    .main-column-left { grid-column: 2; }
    .main-column-right { grid-column: 2; }
    .details-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1100px) {
    .main-grid {
        grid-template-columns: 280px 1.05fr 1.1fr;
        align-items: start;
    }
    .main-column-cities { grid-column: 1; }
    .main-column-left { grid-column: 2; }
    .main-column-right { grid-column: 3; grid-template-columns: 1fr; }
}