/* Basic Colors */
:root {
    --primary-color: #8b5cf6;
    --primary-hover: #7c3aed;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --bg-color: #ffffff;
    --bg-secondary: #f9fafb;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --border-color: #e5e7eb;
}

/* Dark Mode */
[data-theme="dark"] {
    --bg-color: #1f2937;
    --bg-secondary: #111827;
    --text-primary: #f9fafb;
    --text-secondary: #d1d5db;
    --border-color: #4b5563;
}

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

body {
    font-family: Arial, sans-serif;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background-color: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.header-actions {
    display: flex;
    gap: 0.5rem;
}

.btn-icon {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.875rem;
}

.btn-icon:hover {
    background-color: var(--primary-color);
    color: white;
}

/* Purpose Card */
.purpose-card {
    background-color: var(--bg-color);
    border-radius: 4px;
    padding: 1.5rem;
    margin: 2rem 0;
    border-left: 4px solid var(--primary-color);
}

.purpose-card h2 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.purpose-card p {
    margin-bottom: 1rem;
}

/* Search Section */
.search-section {
    margin: 2rem 0;
}

.search-container {
    background-color: var(--bg-color);
    border-radius: 4px;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
}

.search-row {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.search-input-wrapper {
    flex: 1;
    position: relative;
}

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

#domainInput {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.5rem;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    background-color: var(--bg-color);
    color: var(--text-primary);
}

#domainInput:focus {
    outline: none;
    border-color: var(--primary-color);
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0.75rem 2rem;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    min-width: 140px;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
}


/* History Side Panel */
.history-panel-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 999;
}

.history-panel {
    position: fixed;
    top: 0;
    right: 0;
    width: 400px;
    max-width: 90vw;
    height: 100%;
    background-color: var(--bg-color);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform 0.3s ease;
}

.history-panel:not(.hidden) {
    transform: translateX(0);
}

.history-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.history-panel-header h3 {
    font-size: 1.25rem;
    margin: 0;
}

.history-panel-sort {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.history-panel-sort h4 {
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.history-panel-sort .sort-options {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.history-panel-sort .sort-btn {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.75rem;
    border-radius: 4px;
    font-size: 0.875rem;
    cursor: pointer;
    text-align: left;
    width: 100%;
}

.history-panel-sort .sort-btn:hover {
    background-color: var(--border-color);
}

.history-panel-sort .sort-btn.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.history-panel-search {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.history-panel-search input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.875rem;
    background-color: var(--bg-color);
    color: var(--text-primary);
}

.history-panel-search input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.history-panel-content {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
}

.history-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.history-item {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.75rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.history-item:hover {
    background-color: var(--border-color);
}

.history-item.active {
    border-color: var(--primary-color);
    background-color: rgba(139, 92, 246, 0.1);
}

.history-item-domain {
    font-weight: 500;
}

.history-item-time {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.empty-history {
    text-align: center;
    color: var(--text-secondary);
    padding: 3rem 0;
}

.history-panel-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
}

.btn-icon-small {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.375rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.875rem;
}

.btn-icon-small:hover {
    background-color: var(--bg-secondary);
}

/* Error Container */
.error-container {
    background-color: #fee2e2;
    border: 1px solid var(--danger-color);
    border-radius: 4px;
    padding: 1rem;
    margin: 1rem 0;
    color: #991b1b;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

[data-theme="dark"] .error-container {
    background-color: rgba(239, 68, 68, 0.1);
    color: #fca5a5;
}

.hidden {
    display: none !important;
}

/* Loading Indicator */
.loading-indicator {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

/* Results Section */
.results-section {
    min-height: 400px;
    margin: 2rem 0;
}

.results-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.welcome-message {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--text-secondary);
}

.welcome-message h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

/* Result Card */
.result-card {
    background-color: var(--bg-color);
    border-radius: 4px;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--primary-color);
}

.result-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.result-card-title {
    font-size: 1.5rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.result-card-actions {
    display: flex;
    gap: 0.5rem;
}

/* Status Badge */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-top: 0.5rem;
}

.status-badge.valid {
    background-color: #d1fae5;
    color: #065f46;
}

[data-theme="dark"] .status-badge.valid {
    background-color: rgba(16, 185, 129, 0.2);
    color: #6ee7b7;
}

.status-badge.expiring {
    background-color: #fef3c7;
    color: #92400e;
}

[data-theme="dark"] .status-badge.expiring {
    background-color: rgba(245, 158, 11, 0.2);
    color: #fcd34d;
}

.status-badge.expired {
    background-color: #fee2e2;
    color: #991b1b;
}

[data-theme="dark"] .status-badge.expired {
    background-color: rgba(239, 68, 68, 0.2);
    color: #fca5a5;
}

/* Result Details */
.result-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.result-detail-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.result-detail-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.result-detail-value {
    font-size: 1rem;
    color: var(--text-primary);
    font-weight: 500;
}

.result-detail-value.highlight {
    color: var(--primary-color);
    font-weight: 600;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-content {
    background-color: var(--bg-color);
    border-radius: 4px;
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.25rem;
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: 1.5rem;
}

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

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.form-group input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    background-color: var(--bg-color);
    color: var(--text-primary);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group small {
    display: block;
    margin-top: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Toggle Switch */
.toggle-switch {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.toggle-input {
    display: none;
}

.toggle-label {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 26px;
    cursor: pointer;
}

.toggle-slider {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border-color);
    border-radius: 26px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    border-radius: 50%;
}

.toggle-input:checked + .toggle-label .toggle-slider {
    background-color: var(--primary-color);
}

.toggle-input:checked + .toggle-label .toggle-slider:before {
    transform: translateX(24px);
}

.toggle-text {
    font-weight: 500;
    color: var(--text-primary);
    min-width: 30px;
}

/* About Content */
.about-content h4 {
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--primary-color);
    font-size: 1.125rem;
}

.about-content h4:first-child {
    margin-top: 0;
}

.about-content p {
    margin-bottom: 1rem;
    line-height: 1.6;
}

.github-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border: 1px solid var(--primary-color);
    border-radius: 4px;
}

.github-link:hover {
    background-color: var(--primary-color);
    color: white;
}

/* Footer */
footer {
    background-color: var(--bg-color);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    margin-top: 4rem;
    text-align: center;
    color: var(--text-secondary);
}

footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

footer a:hover {
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 640px) {
    header h1 {
        font-size: 1.25rem;
    }

    .search-row {
        flex-direction: column;
    }

    #domainInput {
        width: 100%;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        justify-content: center;
    }

    .result-card-header {
        flex-direction: column;
    }

    .result-details {
        grid-template-columns: 1fr;
    }

    .history-panel {
        width: 100%;
        max-width: 100vw;
    }

    .sort-dropdown {
        width: 100%;
        left: 0;
    }
}