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

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
}

.background-blur {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 30%, #1e1b4b 0%, transparent 40%),
                radial-gradient(circle at 80% 70%, #312e81 0%, transparent 40%);
    z-index: -1;
}

.container {
    width: 90%;
    max-width: 800px;
    padding: 2rem 0;
    z-index: 1;
}

header {
    text-align: center;
    margin-bottom: 2.5rem;
}

header h1 {
    font-family: 'Outfit', sans-serif;
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(to right, #818cf8, #c084fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

header p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

.card {
    border-radius: 1.5rem;
    padding: 2rem;
    margin-bottom: 2rem;
    border: 1px solid var(--glass-border);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.glass {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

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

.input-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 0.9rem;
    color: #e2e8f0;
}

.glass-input {
    width: 100%;
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--glass-border);
    border-radius: 0.75rem;
    padding: 0.75rem 1rem;
    color: white;
    font-size: 1rem;
    transition: border-color 0.2s;
}

.glass-input:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(15, 23, 42, 0.8);
}

textarea.glass-input {
    resize: none;
}

.primary-btn {
    width: 100%;
    background: linear-gradient(135deg, var(--primary), #a855f7);
    color: white;
    border: none;
    border-radius: 0.75rem;
    padding: 1rem;
    font-weight: 700;
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s;
}

.primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -5px rgba(99, 102, 241, 0.5);
}

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

.loader {
    display: none;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s linear infinite;
    margin-left: 10px;
}

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

.output-card {
    min-height: 200px;
}

.output-card h2 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #cbd5e1;
}

.output-content {
    white-space: pre-wrap;
    line-height: 1.6;
    color: #e2e8f0;
}

footer {
    text-align: center;
    margin-top: 3rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

small {
    display: block;
    margin-top: 0.25rem;
    color: var(--text-muted);
    font-size: 0.8rem;
}