:root {
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --bg: #0b0f1a;
    --text: #f8fafc;
    --text-dim: #94a3b8;
    --card-bg: rgba(30, 41, 59, 0.5);
    --card-border: rgba(255, 255, 255, 0.1);
    --success: #10b981;
    --error: #ef4444;
    --accent: #34d399;
}

body {
    background-color: var(--bg);
    background-image:
        radial-gradient(circle at 0% 0%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 100% 100%, rgba(52, 211, 153, 0.1) 0%, transparent 50%);
    color: var(--text);
    font-family: 'Outfit', sans-serif;
    margin: 0;
    padding: 40px 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.container {
    width: 100%;
    max-width: 900px;
    animation: fadeIn 0.8s ease-out;
}

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

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

header {
    text-align: center;
    margin-bottom: 40px;
}

h1 {
    font-size: 2.5rem;
    font-weight: 600;
    margin: 0;
    background: linear-gradient(135deg, #a5b4fc 0%, #34d399 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.02em;
}

p.subtitle {
    color: var(--text-dim);
    margin-top: 10px;
    font-size: 1.1rem;
}

.search-card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    padding: 30px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    margin-bottom: 30px;
    transition: transform 0.3s ease;
}

.input-group {
    display: flex;
    gap: 12px;
}

input {
    flex: 1;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid #334155;
    padding: 16px 20px;
    border-radius: 16px;
    color: white;
    outline: none;
    font-size: 1rem;
    transition: all 0.3s ease;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.3);
}

input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.2), inset 0 2px 4px rgba(0, 0, 0, 0.3);
}

button {
    background: var(--primary);
    border: none;
    padding: 0 32px;
    border-radius: 16px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

button:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(99, 102, 241, 0.4);
}

button:active {
    transform: translateY(0);
}

button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.loader-container {
    display: none;
    text-align: center;
    margin: 20px 0;
    color: var(--text-dim);
}

.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--primary);
    border-radius: 50%;
    display: inline-block;
    animation: spin 1s linear infinite;
    vertical-align: middle;
    margin-right: 10px;
}

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

#results-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.result-item {
    background: var(--card-bg);
    backdrop-filter: blur(8px);
    border: 1px solid var(--card-border);
    padding: 24px;
    border-radius: 20px;
    animation: slideUp 0.5s ease-out backwards;
    transition: all 0.3s ease;
}

.result-item:hover {
    border-color: rgba(255, 255, 255, 0.2);
    transform: scale(1.01);
}

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

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

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.provider-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.provider-name {
    font-weight: 600;
    font-size: 1.1rem;
    color: #a5b4fc;
}

.doh-url-display {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    color: var(--text-dim);
    background: rgba(15, 23, 42, 0.4);
    padding: 2px 8px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid transparent;
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.doh-url-display:hover {
    color: var(--primary);
    border-color: rgba(99, 102, 241, 0.3);
    background: rgba(99, 102, 241, 0.1);
}

.status-badge {
    font-size: 0.75rem;
    padding: 4px 12px;
    border-radius: 9999px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.status-error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.ech-box {
    background: #000;
    padding: 20px;
    border-radius: 12px;
    font-family: 'JetBrains Mono', monospace;
    word-break: break-all;
    color: var(--accent);
    font-size: 0.95rem;
    margin: 12px 0;
    border: 1px solid #1e293b;
    position: relative;
    line-height: 1.5;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.ech-box:hover {
    border-color: var(--primary);
    background: #050510;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -10px rgba(99, 102, 241, 0.5);
}

.ech-box:active {
    transform: translateY(0);
}

.meta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin-top: 15px;
    font-size: 0.85rem;
    color: var(--text-dim);
}

.meta-item b {
    color: #cbd5e1;
    display: block;
    margin-bottom: 2px;
}

.error-text {
    color: #fca5a5;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    padding: 10px;
    background: rgba(239, 68, 68, 0.05);
    border-radius: 8px;
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--primary);
    color: white;
    padding: 12px 24px;
    border-radius: 12px;
    font-weight: 600;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.toast.show {
    transform: translateX(-50%) translateY(0);
}

@media (max-width: 640px) {
    .input-group {
        flex-direction: column;
    }

    button {
        height: 50px;
    }

    h1 {
        font-size: 1.8rem;
    }
}