:root {
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
}

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

body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
}

.container {
    max-width: 640px;
    width: 100%;
    animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    animation: fadeIn 0.6s ease-out 0.1s both;
}

h1 {
    font-size: 2.5rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-xs);
    background: linear-gradient(135deg, var(--color-text) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    font-weight: 400;
}

.tool {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing-xl);
    box-shadow:
        0 4px 6px rgba(0, 0, 0, 0.1),
        0 0 0 1px rgba(156, 176, 40, 0.05);
    animation: fadeIn 0.6s ease-out 0.2s both;
}

section {
    margin-bottom: var(--spacing-xl);
}

section:last-child {
    margin-bottom: 0;
}

h2 {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-subtle);
    margin-bottom: var(--spacing-sm);
}

/* Search */
.search-form {
    display: flex;
    gap: var(--spacing-md);
    align-items: end;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    flex: 1;
    min-width: 0;
}

.input-group label {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

input[type="text"] {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 500;
    width: 100%;
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text);
    transition: var(--transition);
    outline: none;
}

input[type="text"]:focus {
    border-color: var(--color-accent);
    box-shadow:
        0 0 0 3px rgba(156, 176, 40, 0.12),
        0 0 20px rgba(156, 176, 40, 0.12);
}

input[type="text"]:hover:not(:focus) {
    border-color: var(--color-border-active);
}

input[type="text"]::placeholder {
    color: var(--color-text-subtle);
    opacity: 0.6;
}

.search-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    background: var(--color-accent);
    border: 1px solid var(--color-accent);
    border-radius: var(--radius);
    padding: var(--spacing-sm) var(--spacing-lg);
    color: #fff;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    height: 45px;
}

.search-btn:hover:not(:disabled) {
    background: var(--color-accent-muted);
    border-color: var(--color-accent-muted);
    transform: translateY(-2px);
}

.search-btn:active:not(:disabled) {
    transform: translateY(0);
}

.search-btn:disabled {
    opacity: 0.6;
    cursor: progress;
}

/* Status */
.status {
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--color-text-muted);
    transition: var(--transition);
}

.status.active {
    border-color: var(--color-accent-muted);
    background: rgba(156, 176, 40, 0.05);
}

.status.active .status-text {
    color: var(--color-accent);
}

.status.error {
    border-color: var(--color-error);
    background: rgba(220, 38, 38, 0.05);
}

.status.error .status-text {
    color: var(--color-error);
}

.status-text {
    display: block;
}

/* Connector */
.connector {
    display: flex;
    justify-content: center;
    color: var(--color-border);
    margin: var(--spacing-lg) 0;
}

/* Coordinate cards */
.coords {
    display: flex;
    gap: var(--spacing-md);
}

.coord-card {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    align-items: center;
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing-md);
    transition: var(--transition);
}

.coord-card.filled {
    border-color: var(--color-accent);
    background: rgba(156, 176, 40, 0.05);
    animation: pulse 0.4s ease-out;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(156, 176, 40, 0.4);
    }
    50% {
        box-shadow: 0 0 0 6px rgba(156, 176, 40, 0);
    }
}

.coord-label {
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
}

.coord-value {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--color-text);
    word-break: break-all;
    text-align: center;
}

.coord-card.filled .coord-value {
    color: var(--color-accent);
}

.copy-btn {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 0.25rem 0.6rem;
    color: var(--color-text-subtle);
    cursor: pointer;
    transition: var(--transition);
}

.copy-btn:hover:not(:disabled) {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.copy-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.copy-btn.copied {
    border-color: var(--color-success);
    color: var(--color-success);
}

/* Detail rows */
.detail-list {
    margin-top: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-bg);
    overflow: hidden;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.detail-row:last-child {
    border-bottom: none;
}

.detail-label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-text-muted);
    white-space: nowrap;
}

.detail-value {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-text);
    text-align: right;
    word-break: break-word;
}

/* Actions */
.actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-md);
}

.action-btn {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 0.4rem 0.7rem;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    text-decoration: none;
}

.action-btn:hover:not(:disabled):not([aria-disabled="true"]) {
    border-color: var(--color-accent);
    color: var(--color-accent);
    background: rgba(156, 176, 40, 0.05);
    transform: translateY(-2px);
}

.action-btn:active:not(:disabled):not([aria-disabled="true"]) {
    transform: translateY(0);
}

.action-btn:disabled,
.action-btn[aria-disabled="true"] {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}

.action-btn.copied {
    border-color: var(--color-success);
    color: var(--color-success);
}

/* Map */
.map-container {
    position: relative;
    width: 100%;
    height: 260px;
    margin-top: var(--spacing-md);
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
}

#map {
    width: 100%;
    height: 100%;
    border: 0;
    display: none;
}

.map-container.has-location #map {
    display: block;
}

.map-container.has-location .map-placeholder {
    display: none;
}

.map-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-text-subtle);
}

/* Matches */
.matches-section {
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.matches {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.match-btn {
    font-family: var(--font-display);
    font-size: 0.8rem;
    text-align: left;
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--color-text-muted);
    cursor: pointer;
    transition: var(--transition);
}

.match-btn:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    background: rgba(156, 176, 40, 0.05);
}

.match-btn .match-coords {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--color-text-subtle);
    margin-top: 0.15rem;
}

/* Examples */
.examples-section {
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.examples {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.example-btn {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 0.4rem 0.7rem;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.example-btn:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    background: rgba(156, 176, 40, 0.05);
    transform: translateY(-2px);
}

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

/* Attribution */
.attribution {
    margin-top: var(--spacing-lg);
    text-align: center;
    font-size: 0.75rem;
    color: var(--color-text-subtle);
    animation: fadeIn 0.6s ease-out 0.3s both;
}

.attribution a {
    color: var(--color-text-muted);
    text-decoration: none;
    border-bottom: 1px solid var(--color-border);
}

.attribution a:hover {
    color: var(--color-accent);
    border-color: var(--color-accent);
}

/* Responsive */
@media (max-width: 600px) {
    body {
        padding: var(--spacing-md);
    }

    h1 {
        font-size: 2rem;
    }

    .tool {
        padding: var(--spacing-lg);
    }

    .search-form {
        flex-direction: column;
        align-items: stretch;
    }

    .search-btn {
        justify-content: center;
    }

    .coords {
        flex-direction: column;
    }

    .coord-value {
        font-size: 1.25rem;
    }

    .detail-row {
        flex-direction: column;
        gap: 0.15rem;
    }

    .detail-value {
        text-align: left;
    }
}