/* === RESET & BASE === */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg: #0a0a0f;
    --surface: #111118;
    --card: #16161f;
    --border: rgba(255,255,255,0.07);
    --accent: #00e5a0;
    --accent2: #0066ff;
    --text: #f0f0f8;
    --muted: #666680;
    --danger: #ff4d6d;
    --success: #00e5a0;
    --warning: #ffb347;
}

html, body {
    height: 100%;
}

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: 'JetBrains Mono', monospace;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow-x: hidden;
    position: relative;
}

/* Noise texture overlay */
.noise {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    opacity: 0.035;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    background-size: 200px 200px;
}

/* Glow blob */
body::before {
    content: '';
    position: fixed;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0,229,160,0.06) 0%, transparent 70%);
    top: -100px;
    right: -100px;
    pointer-events: none;
    z-index: 0;
}

body::after {
    content: '';
    position: fixed;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0,102,255,0.05) 0%, transparent 70%);
    bottom: -100px;
    left: -100px;
    pointer-events: none;
    z-index: 0;
}

/* === CONTAINER === */
.container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 680px;
    padding: 40px 24px;
    animation: fadeUp 0.6s ease both;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

/* === HEADER === */
header {
    margin-bottom: 40px;
}

.badge {
    display: inline-block;
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    color: var(--accent);
    border: 1px solid rgba(0,229,160,0.3);
    padding: 4px 12px;
    border-radius: 100px;
    margin-bottom: 20px;
    background: rgba(0,229,160,0.05);
}

h1 {
    font-family: 'Syne', sans-serif;
    font-size: clamp(2.8rem, 8vw, 4.5rem);
    font-weight: 800;
    line-height: 0.95;
    color: #fff;
    letter-spacing: -0.03em;
    margin-bottom: 16px;
}

h1 span {
    color: var(--accent);
}

.subtitle {
    font-size: 0.8rem;
    color: var(--muted);
    line-height: 1.7;
    max-width: 400px;
    font-family: 'JetBrains Mono', monospace;
}

/* === CARD === */
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px;
    margin-bottom: 20px;
    backdrop-filter: blur(20px);
}

label {
    display: block;
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    color: var(--muted);
    text-transform: uppercase;
    margin-bottom: 10px;
}

.input-row {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 4px 4px 4px 12px;
    transition: border-color 0.2s;
}

.input-row:focus-within {
    border-color: rgba(0,229,160,0.4);
    box-shadow: 0 0 0 3px rgba(0,229,160,0.06);
}

.method-badge {
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--accent2);
    background: rgba(0,102,255,0.12);
    border: 1px solid rgba(0,102,255,0.25);
    padding: 4px 10px;
    border-radius: 6px;
    white-space: nowrap;
    flex-shrink: 0;
}

input[type="text"] {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.82rem;
    color: var(--text);
    padding: 12px 8px;
    width: 100%;
}

input::placeholder {
    color: var(--muted);
    opacity: 0.6;
}

textarea {
    width: 100%;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px 16px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.82rem;
    color: var(--text);
    resize: vertical;
    outline: none;
    transition: border-color 0.2s;
    line-height: 1.6;
}

textarea:focus {
    border-color: rgba(0,229,160,0.4);
    box-shadow: 0 0 0 3px rgba(0,229,160,0.06);
}

textarea::placeholder {
    color: var(--muted);
    opacity: 0.6;
}

/* === BUTTON === */
button {
    margin-top: 20px;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: var(--accent);
    color: #000;
    font-family: 'Syne', sans-serif;
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    border: none;
    border-radius: 10px;
    padding: 16px 24px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: transform 0.15s, box-shadow 0.2s;
}

button:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 30px rgba(0,229,160,0.25);
}

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

button.loading {
    pointer-events: none;
    opacity: 0.7;
}

.btn-icon {
    transition: transform 0.2s;
    font-size: 1.1rem;
}

button:hover .btn-icon {
    transform: translateX(4px);
}

/* === RESULTS === */
.results-section {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
}

.results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    border-bottom: 1px solid var(--border);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: var(--muted);
    text-transform: uppercase;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--muted);
    transition: background 0.3s;
}

.dot.active { background: var(--accent); box-shadow: 0 0 8px var(--accent); animation: pulse 1.5s infinite; }
.dot.error { background: var(--danger); box-shadow: 0 0 8px var(--danger); }

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

#results {
    padding: 24px;
    min-height: 120px;
}

.placeholder-text {
    color: var(--muted);
    font-size: 0.78rem;
    opacity: 0.5;
    font-style: italic;
}

/* Result cards */
.result-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px;
    margin-bottom: 20px;
}

.metric-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px;
    animation: fadeUp 0.4s ease both;
}

.metric-label {
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    color: var(--muted);
    text-transform: uppercase;
    margin-bottom: 6px;
}

.metric-value {
    font-family: 'Syne', sans-serif;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--accent);
}

.metric-unit {
    font-size: 0.7rem;
    color: var(--muted);
    margin-left: 2px;
}

.status-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.72rem;
    font-weight: 600;
    padding: 5px 12px;
    border-radius: 100px;
}

.status-pill.ok {
    background: rgba(0,229,160,0.1);
    color: var(--accent);
    border: 1px solid rgba(0,229,160,0.25);
}

.status-pill.err {
    background: rgba(255,77,109,0.1);
    color: var(--danger);
    border: 1px solid rgba(255,77,109,0.25);
}

.output-box {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px;
    font-size: 0.82rem;
    color: var(--text);
    word-break: break-all;
    line-height: 1.7;
    animation: fadeUp 0.4s ease 0.15s both;
}

.output-label {
    font-size: 0.65rem;
    letter-spacing: 0.12em;
    color: var(--muted);
    text-transform: uppercase;
    margin-bottom: 8px;
}

.error-box {
    background: rgba(255,77,109,0.06);
    border: 1px solid rgba(255,77,109,0.2);
    border-radius: 10px;
    padding: 14px;
    color: var(--danger);
    font-size: 0.82rem;
    line-height: 1.6;
}

/* Speed indicator */
.speed-bar-wrap {
    margin-top: 14px;
    animation: fadeUp 0.4s ease 0.3s both;
}

.speed-bar-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.65rem;
    color: var(--muted);
    letter-spacing: 0.08em;
    margin-bottom: 6px;
}

.speed-bar-track {
    height: 4px;
    background: var(--surface);
    border-radius: 100px;
    overflow: hidden;
}

.speed-bar-fill {
    height: 100%;
    border-radius: 100px;
    transition: width 0.8s ease;
}

/* === FOOTER === */
footer {
    margin-top: 24px;
    text-align: center;
    font-size: 0.68rem;
    color: var(--muted);
    opacity: 0.5;
}

footer code {
    color: var(--accent);
    font-family: 'JetBrains Mono', monospace;
    background: rgba(0,229,160,0.06);
    padding: 2px 6px;
    border-radius: 4px;
}