:root {
    --bg-color: #0f172a;
    --panel-bg: rgba(30, 41, 59, 0.7);
    --panel-border: rgba(255, 255, 255, 0.1);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #8b5cf6;
    --accent-hover: #7c3aed;
    --input-bg: rgba(15, 23, 42, 0.6);
    --success-color: #10b981;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    padding: 3rem 2rem;
    overflow-x: hidden;
    position: relative;
}

.background-elements {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
}

.blob {
    position: absolute;
    filter: blur(80px);
    opacity: 0.5;
    border-radius: 50%;
    animation: float 10s infinite ease-in-out alternate;
}

.blob-1 {
    top: -10%;
    left: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, rgba(139,92,246,0.4) 0%, rgba(30,41,59,0) 70%);
}

.blob-2 {
    bottom: -10%;
    right: -10%;
    width: 40vw;
    height: 40vw;
    background: radial-gradient(circle, rgba(236,72,153,0.3) 0%, rgba(30,41,59,0) 70%);
    animation-delay: -5s;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(30px, 50px) scale(1.1); }
}

.container {
    width: 100%;
    max-width: 1400px;
    z-index: 1;
}

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

header h1 {
    font-size: 3.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, #a78bfa, #ec4899);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
    letter-spacing: -1px;
}

header p {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

.yt-link {
    color: #ef4444;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
    background: rgba(239, 68, 68, 0.1);
    padding: 0.2rem 0.8rem;
    border-radius: 20px;
}

.yt-link:hover {
    color: #fca5a5;
    background: rgba(239, 68, 68, 0.2);
}

main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

@media (max-width: 1024px) {
    main {
        grid-template-columns: 1fr;
    }
}

.panel {
    background: var(--panel-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--panel-border);
    border-radius: 24px;
    padding: 2.5rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.panel h2 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #fff;
    border-bottom: 1px solid var(--panel-border);
    padding-bottom: 1rem;
}

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

label {
    display: block;
    margin-bottom: 0.6rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 600;
}

input[type="text"], textarea {
    width: 100%;
    background: var(--input-bg);
    border: 1px solid var(--panel-border);
    color: var(--text-primary);
    padding: 1rem;
    border-radius: 12px;
    font-family: 'Outfit', sans-serif;
    font-size: 1rem;
    transition: all 0.3s;
    outline: none;
}

input[type="text"]:focus, textarea:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.25);
}

textarea#article-input {
    height: 400px;
    resize: vertical;
    line-height: 1.6;
}

.btn-primary {
    width: 100%;
    background: linear-gradient(135deg, var(--accent-color), #ec4899);
    color: white;
    border: none;
    padding: 1.2rem;
    font-size: 1.2rem;
    font-weight: 600;
    border-radius: 12px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px -5px rgba(236, 72, 153, 0.6);
}

.output-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.output-field.full-width {
    grid-column: span 2;
}

.input-with-copy {
    position: relative;
    display: flex;
}

.input-with-copy input, .input-with-copy textarea {
    padding-right: 4rem;
    background: rgba(0, 0, 0, 0.2);
}

.input-with-copy textarea {
    resize: vertical;
    line-height: 1.6;
}

.input-with-copy.align-top .copy-btn {
    top: 0.5rem;
    transform: none;
}

.copy-btn {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.05);
    color: var(--text-primary);
    width: 40px;
    height: 40px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.2s;
}

.copy-btn:hover {
    background: var(--accent-color);
    border-color: var(--accent-hover);
}

.copy-btn.copied {
    background: var(--success-color);
    border-color: var(--success-color);
}

.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--success-color);
    color: white;
    padding: 1rem 2rem;
    border-radius: 30px;
    font-weight: 600;
    box-shadow: 0 10px 25px -5px rgba(16, 185, 129, 0.5);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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