:root {
    --bg-dark: #0f111a;
    --text-main: #e2e8f0;
    --text-muted: #94a3b8;
    --accent: #8b5cf6;
    --accent-hover: #7c3aed;
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --error: #ef4444;
    --success: #10b981;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    line-height: 1.6;
}

/* Cosmic Background */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    background: radial-gradient(ellipse at bottom, #1b2735 0%, #090a0f 100%);
    overflow: hidden;
}

.background-animation::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: transparent url('data:image/svg+xml;utf8,<svg width="200" height="200" xmlns="http://www.w3.org/2000/svg"><circle cx="2" cy="2" r="1" fill="rgba(255,255,255,0.3)"/><circle cx="60" cy="50" r="1.5" fill="rgba(255,255,255,0.4)"/><circle cx="150" cy="180" r="1" fill="rgba(255,255,255,0.2)"/><circle cx="120" cy="40" r="2" fill="rgba(255,255,255,0.5)"/></svg>') repeat;
    animation: rotateStars 200s linear infinite;
}

@keyframes rotateStars {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem;
}

header {
    text-align: center;
    margin-bottom: 3rem;
    animation: fadeInDown 1s ease-out;
}

h1 {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, #c4b5fd 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
    text-shadow: 0 0 30px rgba(139, 92, 246, 0.3);
}

p {
    color: var(--text-muted);
}

main {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 768px) {
    main {
        grid-template-columns: 1fr 1fr;
    }
}

.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.glass:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.6);
}

h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 0.5rem;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    border-bottom: 1px solid var(--glass-border);
    margin-bottom: 1.5rem;
}

.results-header h2 {
    border-bottom: none;
    margin-bottom: 0.5rem;
}

.download-btn {
    background: rgba(139, 92, 246, 0.15);
    border: 1px solid var(--accent);
    color: var(--text-main);
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.download-btn:hover {
    background: var(--accent);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
}

.download-btn.hidden {
    display: none;
}

h3 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--text-main);
}

.input-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}

input[type="date"],
input[type="number"],
select {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    border: 1px solid var(--glass-border);
    background: rgba(15, 23, 42, 0.6);
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s, box-shadow 0.3s;
}

input[type="date"]::-webkit-calendar-picker-indicator {
    filter: invert(1);
    cursor: pointer;
}

select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23e2e8f0' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1em;
}

select option {
    background: var(--bg-dark);
    color: var(--text-main);
}

input:focus,
select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(139, 92, 246, 0.2);
}

.planets-selection {
    margin-bottom: 2rem;
}

.planet-group-box {
    background: rgba(0, 0, 0, 0.15);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1rem;
}

.planet-group-box.hidden {
    display: none;
}

.hidden {
    display: none !important;
}

.orb-opposed-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
}

.orb-opposed-item label {
    display: block;
    margin-bottom: 0.4rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.orb-opposed-item input[type="number"] {
    width: 100%;
}

.checkbox-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 0.75rem;
}

.planet-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 0.95rem;
    padding: 0.5rem;
    border-radius: 6px;
    transition: background 0.2s;
}

.planet-label:hover {
    background: rgba(255, 255, 255, 0.05);
}

.planet-label input {
    margin-right: 0.5rem;
    accent-color: var(--accent);
    width: 18px;
    height: 18px;
    cursor: pointer;
}

/* Advanced collapsible section */
.advanced-section {
    margin-bottom: 1.5rem;
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.15);
    overflow: hidden;
}

.advanced-summary {
    padding: 0.75rem 1rem;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 600;
    user-select: none;
    list-style: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: color 0.2s, background 0.2s;
}

.advanced-summary::-webkit-details-marker {
    display: none;
}

.advanced-summary::before {
    content: '▶';
    font-size: 0.7rem;
    transition: transform 0.2s;
    display: inline-block;
}

details[open] .advanced-summary::before {
    transform: rotate(90deg);
}

.advanced-summary:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.04);
}

.advanced-content {
    padding: 0.75rem 1rem 1rem;
    border-top: 1px solid var(--glass-border);
}

/* Planet positions in result cards */
.planet-positions {
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--glass-border);
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.planet-pos-item {
    font-size: 0.82rem;
    color: var(--text-muted);
    background: rgba(139, 92, 246, 0.08);
    border: 1px solid rgba(139, 92, 246, 0.2);
    border-radius: 4px;
    padding: 0.2rem 0.5rem;
    white-space: nowrap;
}

.planet-pos-item strong {
    color: var(--text-main);
}

.primary-btn {
    width: 100%;
    padding: 1rem;
    border: none;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
    color: white;
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
    font-family: inherit;
}

.primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.4);
}

.primary-btn:active {
    transform: translateY(0);
}

.primary-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
    background: #475569;
}

.secondary-btn {
    width: 100%;
    padding: 0.75rem 1rem;
    margin-top: 0.75rem;
    border: 1px solid var(--accent);
    border-radius: 8px;
    background: transparent;
    color: var(--accent);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: background 0.2s, color 0.2s, transform 0.2s, box-shadow 0.2s;
    font-family: inherit;
}

.secondary-btn:hover {
    background: rgba(139, 92, 246, 0.12);
    transform: translateY(-1px);
    box-shadow: 0 2px 10px rgba(139, 92, 246, 0.2);
}

.secondary-btn:active {
    transform: translateY(0);
}

.status-msg.copy-success {
    color: var(--success);
    animation: none;
}

.status-msg {
    margin-top: 1rem;
    text-align: center;
    font-size: 0.9rem;
    color: var(--accent);
    font-weight: 600;
    animation: pulse 1.5s infinite;
}

.status-msg.hidden {
    display: none;
}

.status-msg.error {
    color: var(--error);
    animation: none;
}

.results-content {
    max-height: 1500px;
    overflow-y: auto;
    padding-right: 0.5rem;
}

.results-content::-webkit-scrollbar {
    width: 6px;
}

.results-content::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 3px;
}

.results-content::-webkit-scrollbar-thumb {
    background: var(--glass-border);
    border-radius: 3px;
}

.results-content::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

.placeholder-text {
    text-align: center;
    font-style: italic;
    opacity: 0.7;
    margin-top: 2rem;
}

.result-card {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1rem;
    animation: fadeIn 0.5s ease-out forwards;
}

.result-date {
    font-weight: 600;
    color: var(--accent);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.result-details {
    font-size: 0.95rem;
    color: var(--text-main);
    display: flex;
    justify-content: space-between;
}

.result-orb {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes pulse {
    0% {
        opacity: 0.6;
    }

    50% {
        opacity: 1;
    }

    100% {
        opacity: 0.6;
    }
}

/* Wikipedia historical events section inside result cards */
.wiki-events {
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--glass-border);
}

.wiki-events-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 0.4rem;
}

.wiki-events-list {
    list-style: disc;
    padding-left: 1.25rem;
    margin: 0;
}

.wiki-events-list li {
    font-size: 0.82rem;
    color: var(--text-main);
    margin-bottom: 0.25rem;
    line-height: 1.5;
}

.wiki-events-loading,
.wiki-events-empty,
.wiki-events-error {
    font-size: 0.82rem;
    color: var(--text-muted);
    font-style: italic;
}

.wiki-events-error {
    color: var(--error);
}

.wiki-day-section {
    margin-top: 0.5rem;
}

.wiki-day-label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 0.2rem;
}

.wiki-day-offset {
    font-weight: 400;
    color: var(--text-muted);
    font-size: 0.78rem;
}

/* Footer */
.site-footer {
    text-align: center;
    padding: 1.5rem 2rem;
    margin-top: 2rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    border-top: 1px solid var(--glass-border);
}

.site-footer a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.2s;
}

.site-footer a:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}