:root {
    --bg: #0f1117;
    --bg2: #1a1d27;
    --bg3: #252836;
    --border: #2e3347;
    --text: #e2e8f0;
    --text2: #8892a4;
    --accent: #4f8ef7;
    --accent2: #3b6fd4;
    --success: #22c55e;
    --error: #ef4444;
    --radius: 12px;
    --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
}
[data-theme="light"] {
    --bg: #f0f2f8;
    --bg2: #ffffff;
    --bg3: #e8ecf4;
    --border: #d1d9e6;
    --text: #1a2035;
    --text2: #5a6585;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { background: var(--bg); color: var(--text); font-family: 'JetBrains Mono', 'Exo 2', monospace, sans-serif; min-height: 100vh; }

/* LOGIN */
.login-screen { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-box { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); padding: 48px; width: 380px; text-align: center; }
.login-box h1 { font-size: 1.5rem; margin-bottom: 8px; color: var(--accent); }
.login-box p { color: var(--text2); margin-bottom: 24px; font-size: 0.875rem; }
.login-box input { width: 100%; padding: 12px 16px; background: var(--bg3); border: 1px solid var(--border); border-radius: 8px; color: var(--text); font-size: 1rem; margin-bottom: 12px; }
.login-box button { width: 100%; padding: 12px; background: var(--accent); color: white; border: none; border-radius: 8px; font-size: 1rem; cursor: pointer; transition: background 0.2s; }
.login-box button:hover { background: var(--accent2); }
.error-msg { color: var(--error); font-size: 0.875rem; margin-top: 8px; min-height: 20px; }

/* APP LAYOUT */
.app { display: flex; flex-direction: column; min-height: 100vh; }
.app-header { background: var(--bg2); border-bottom: 1px solid var(--border); padding: 0 24px; height: 56px; display: flex; align-items: center; justify-content: space-between; }
.header-logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1rem; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.app-main { flex: 1; max-width: 720px; margin: 40px auto; padding: 0 24px; width: 100%; }

/* YT STATUS */
.yt-status { font-size: 0.75rem; padding: 4px 10px; border-radius: 20px; border: 1px solid var(--border); color: var(--text2); }
.yt-status.connected { color: var(--success); border-color: var(--success); }
.yt-status.disconnected { color: var(--error); border-color: var(--error); }

/* AUTH BANNER */
.auth-banner { background: #1e1a2e; border: 1px solid #4f3a8a; border-radius: var(--radius); padding: 14px 20px; display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; }
.btn-auth { background: var(--accent); color: white; padding: 8px 16px; border-radius: 8px; text-decoration: none; font-size: 0.875rem; }

/* UPLOAD CARD */
.upload-card { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; }
.upload-card h2 { font-size: 1.25rem; margin-bottom: 24px; }
.field { margin-bottom: 20px; }
.field label { display: block; font-size: 0.8rem; color: var(--text2); margin-bottom: 8px; text-transform: uppercase; letter-spacing: 0.05em; }
.field input { width: 100%; padding: 12px 16px; background: var(--bg3); border: 1px solid var(--border); border-radius: 8px; color: var(--text); font-size: 0.95rem; transition: border-color 0.2s; }
.field input:focus { outline: none; border-color: var(--accent); }

/* DROP ZONES */
.drop-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 24px; }
.drop-zone { border: 2px dashed var(--border); border-radius: var(--radius); padding: 28px 20px; text-align: center; cursor: pointer; transition: all 0.2s var(--ease-out-quart); display: flex; flex-direction: column; align-items: center; gap: 8px; }
.drop-zone:hover, .drop-zone.dragover { border-color: var(--accent); background: oklch(0.25 0.05 240 / 0.3); }
.drop-zone.has-file { border-color: var(--success); background: oklch(0.25 0.05 140 / 0.2); }
.drop-zone span { font-size: 0.875rem; color: var(--text2); }
.drop-zone small { font-size: 0.75rem; color: var(--success); word-break: break-all; }
.drop-zone svg { color: var(--text2); }
.drop-zone.has-file svg { color: var(--success); }

/* BUTTONS */
.btn-publish { width: 100%; padding: 14px; background: var(--accent); color: white; border: none; border-radius: 8px; font-size: 1rem; cursor: pointer; display: flex; align-items: center; justify-content: center; gap: 8px; transition: all 0.2s; }
.btn-publish:hover:not(:disabled) { background: var(--accent2); transform: translateY(-1px); }
.btn-publish:disabled { opacity: 0.5; cursor: not-allowed; }
.theme-toggle { background: none; border: 1px solid var(--border); border-radius: 8px; padding: 6px 8px; cursor: pointer; color: var(--text2); display: flex; align-items: center; }
.theme-toggle:hover { color: var(--text); border-color: var(--text2); }

/* PROGRESS */
#progressBlock { margin-top: 20px; }
.progress-label { font-size: 0.875rem; color: var(--text2); margin-bottom: 8px; }
.progress-bar { height: 6px; background: var(--bg3); border-radius: 3px; overflow: hidden; }
.progress-fill { height: 100%; background: var(--accent); border-radius: 3px; width: 0%; transition: width 0.4s var(--ease-out-quart); }

/* RESULT */
.result-card { background: var(--bg2); border: 1px solid var(--success); border-radius: var(--radius); padding: 32px; text-align: center; margin-top: 24px; }
.result-icon { margin-bottom: 16px; }
.result-card h3 { font-size: 1.25rem; margin-bottom: 24px; }
.result-url { text-align: left; margin-bottom: 20px; }
.result-url label { font-size: 0.8rem; color: var(--text2); display: block; margin-bottom: 8px; }
.url-row { display: flex; gap: 8px; }
.url-row input { flex: 1; padding: 10px 14px; background: var(--bg3); border: 1px solid var(--border); border-radius: 8px; color: var(--text); font-size: 0.875rem; }
.btn-copy { padding: 10px 16px; background: var(--bg3); border: 1px solid var(--border); border-radius: 8px; color: var(--text); cursor: pointer; white-space: nowrap; }
.btn-copy:hover { background: var(--border); }
.btn-open-yt { display: inline-block; padding: 12px 24px; background: #ff0000; color: white; border-radius: 8px; text-decoration: none; margin-bottom: 12px; font-size: 0.9rem; }
.btn-new { display: block; width: 100%; padding: 12px; background: var(--bg3); border: 1px solid var(--border); border-radius: 8px; color: var(--text); cursor: pointer; font-size: 0.9rem; }
.btn-new:hover { background: var(--border); }