:root {
    --bg-color: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --success: #10b981;
    --error: #ef4444;
    --border: rgba(255, 255, 255, 0.1);
    --glass: rgba(255, 255, 255, 0.05);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-image:
        radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.15) 0%, transparent 20%),
        radial-gradient(circle at 90% 80%, rgba(16, 185, 129, 0.15) 0%, transparent 20%);
}

.container {
    width: 100%;
    max-width: 800px;
    padding: 2rem;
}

header {
    text-align: center;
    margin-bottom: 3rem;
    animation: fadeInDown 0.8s ease-out;
}

h1 {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, #fff 0%, #6366f1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
    letter-spacing: -1px;
}

.subtitle {
    color: var(--text-muted);
    font-size: 1.1rem;
}

.check-card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    margin-bottom: 2rem;
    animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

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

label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
}

textarea {
    width: 100%;
    height: 120px;
    background: var(--glass);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1rem;
    color: var(--text-main);
    font-size: 1rem;
    resize: vertical;
    transition: border-color 0.3s, box-shadow 0.3s;
}

textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.file-drop-area {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
    padding: 2rem;
    border: 2px dashed var(--border);
    border-radius: 8px;
    transition: 0.2s;
    background: var(--glass);
    cursor: pointer;
    justify-content: center;
    flex-direction: column;
    gap: 0.5rem;
}

.file-drop-area:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.05);
}

.file-msg {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.fake-btn {
    background: var(--border);
    border-radius: 4px;
    padding: 4px 8px;
    font-size: 0.8rem;
    color: var(--text-main);
}

.file-input {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 100%;
    opacity: 0;
    cursor: pointer;
}

.action-bar {
    display: flex;
    justify-content: flex-end;
}

.btn-primary {
    background: var(--primary);
    color: white;
    border: none;
    padding: 0.75rem 2rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, background 0.2s;
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
}

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

/* Results Section */
.results-container {
    animation: fadeInUp 0.8s ease-out 0.4s backwards;
    display: none;
    /* Hidden by default */
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    color: var(--text-main);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-main);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: 0.2s;
}

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

.results-list {
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border);
    overflow: hidden;
    max-height: 400px;
    overflow-y: auto;
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
    transition: background 0.2s;
}

.result-item:last-child {
    border-bottom: none;
}

.result-item:hover {
    background: var(--glass);
}

.domain-name {
    font-weight: 500;
}

.status-badge {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-available {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
}

.status-taken {
    background: rgba(239, 68, 68, 0.2);
    color: var(--error);
}

.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
    margin-right: 8px;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

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

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

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

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

/* History Section */
.history-container {
    margin-top: 3rem;
    animation: fadeInUp 0.8s ease-out 0.6s backwards;
}

.history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    color: var(--text-main);
}

.history-list {
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border);
    overflow: hidden;
}

.history-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
    transition: background 0.2s;
    min-height: 80px;
}

.history-item:last-child {
    border-bottom: none;
}

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

.history-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
}

.history-date {
    font-weight: 600;
    color: var(--text-main);
}

.history-stats {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

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

/* History Progress Bar */
.history-progress-container {
    height: 6px;
    width: 60%;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    margin-top: 8px;
    overflow: hidden;
}

.history-progress-bar {
    height: 100%;
    background: var(--primary);
    transition: width 0.5s ease;
}

.history-stats small {
    display: block;
    margin-top: 4px;
    color: var(--text-muted);
}

/* Rate Limit Banner */
.rate-limit-card {
    background: var(--error);
    color: white;
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    box-shadow: 0 10px 25px -5px rgba(239, 68, 68, 0.4);
    animation: fadeInDown 0.5s ease-out;
}

.rate-limit-card button {
    border: none;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.2s;
}

.rate-limit-card button:hover {
    transform: scale(1.05);
}