:root {
    --primary: #ef4444;
    /* Red-500 */
    --primary-dark: #dc2626;
    --bg-dark: #0f172a;
    /* Slate-900 */
    --bg-card: #1e293b;
    /* Slate-800 */
    --text-main: #f8fafc;
    /* Slate-50 */
    --text-muted: #94a3b8;
    /* Slate-400 */
    --border: #334155;
    /* Slate-700 */
    --glow: 0 0 20px rgba(239, 68, 68, 0.5);
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 640px;
    margin: 0 auto;
    padding: 2rem 1rem;
    width: 100%;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* Header */
header {
    text-align: center;
    margin-bottom: 3rem;
}

.logo {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, #ef4444 0%, #f97316 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
    display: inline-block;
    letter-spacing: -2px;
}

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

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    border-color: var(--primary);
    box-shadow: 0 0 15px rgba(239, 68, 68, 0.1);
}

/* Form Elements */
textarea {
    width: 100%;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    color: var(--text-main);
    padding: 1rem;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    min-height: 150px;
    resize: vertical;
    margin-bottom: 1.5rem;
    transition: border-color 0.2s;
}

textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(239, 68, 68, 0.2);
}

.options-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

select,
input {
    width: 100%;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    color: var(--text-main);
    padding: 0.75rem;
    border-radius: 8px;
    font-size: 0.9rem;
}

/* Buttons */
.btn {
    width: 100%;
    padding: 1rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, #dc2626 100%);
    color: white;
    box-shadow: 0 4px 6px -1px rgba(220, 38, 38, 0.2);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 12px -1px rgba(220, 38, 38, 0.3);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-muted);
}

.btn-secondary:hover {
    border-color: var(--text-muted);
    color: var(--text-main);
}

/* Success/Error States */
.result-box {
    margin-top: 1.5rem;
    padding: 1rem;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid #059669;
    border-radius: 8px;
    display: none;
}

.error-box {
    color: #ef4444;
    margin-top: 1rem;
    font-size: 0.9rem;
    display: none;
}

.url-display {
    background: var(--bg-dark);
    padding: 0.75rem;
    border-radius: 6px;
    font-family: monospace;
    margin: 0.5rem 0;
    word-break: break-all;
    border: 1px solid var(--border);
}

/* Fire Animation */
.burn-anim {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    opacity: 0.1;
    background: radial-gradient(circle at center, #ef4444 0%, transparent 70%);
}

/* Crypto Status */
.crypto-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: #fbbf24;
    margin-bottom: 1rem;
}

.status-dot {
    width: 8px;
    height: 8px;
    background: #fbbf24;
    border-radius: 50%;
    box-shadow: 0 0 5px #fbbf24;
}

footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
    font-size: 0.8rem;
    border-top: 1px solid var(--border);
    margin-top: auto;
}

.sub-footer {
    font-size: 0.75rem;
    opacity: 0.7;
    margin-top: 0.25rem;
}

/* Ad Containers */
.ad-container {
    margin: 2rem 0;
    text-align: center;
    min-height: 100px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border: 1px dashed var(--border);
    padding: 1rem;
}

.ad-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

a {
    color: var(--primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Loading */
.loader {
    border: 2px solid var(--bg-dark);
    border-top: 2px solid white;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

@media (max-width: 640px) {
    .options-grid {
        grid-template-columns: 1fr;
    }
}