:root {
    color-scheme: dark;
    --bg: #0b1220;
    --card: #111827;
    --muted: #94a3b8;
    --text: #e5e7eb;
    --accent: #38bdf8;
    --accent-dim: rgba(56, 189, 248, 0.15);
    --border: #1f2937;
    --danger: #f87171;
    --warning: #fbbf24;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: "Segoe UI", Inter, system-ui, sans-serif;
    background:
        radial-gradient(ellipse 80% 50% at 50% -10%, rgba(56, 189, 248, 0.14), transparent 55%),
        radial-gradient(circle at top, #1e293b 0%, var(--bg) 62%);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.5;
}

.wrap {
    max-width: 560px;
    margin: 0 auto;
    padding: 32px 20px 48px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
}

.brand img {
    height: 48px;
    width: auto;
    flex-shrink: 0;
}

.brand-text h1 {
    margin: 0;
    font-size: 1.35rem;
    font-weight: 650;
    letter-spacing: -0.03em;
}

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

.brand-sub {
    margin: .15rem 0 0;
    font-size: .8rem;
    color: var(--muted);
}

.card {
    background: color-mix(in srgb, var(--card) 92%, black 8%);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 24px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
}

.card h2 {
    margin: 0 0 8px;
    font-size: 1.15rem;
    font-weight: 650;
}

.muted { color: var(--muted); font-size: 0.9rem; }
.error-title { margin-top: 0; color: var(--danger); }

.step {
    margin-top: 1.25rem;
    padding-top: 1.1rem;
    border-top: 1px solid var(--border);
}

.step h3 {
    margin: 0 0 .35rem;
    font-size: .95rem;
}

label {
    display: block;
    font-size: .8rem;
    font-weight: 600;
    margin-bottom: .3rem;
}

input[type="text"],
input[type="tel"],
input[type="email"] {
    width: 100%;
    padding: .65rem .75rem;
    border-radius: .55rem;
    border: 1px solid var(--border);
    background: #0f172a;
    color: var(--text);
    font-size: 1rem;
}

input:focus {
    outline: 2px solid color-mix(in srgb, var(--accent) 55%, transparent);
    border-color: transparent;
}

.btn-row {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    margin-top: .75rem;
}

.btn {
    appearance: none;
    border: 0;
    border-radius: .55rem;
    padding: .55rem 1rem;
    font-weight: 650;
    cursor: pointer;
    font-size: .9rem;
}

.btn-primary {
    background: var(--accent);
    color: #0b1220;
}

.btn-primary:disabled {
    opacity: .55;
    cursor: not-allowed;
}

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

.form-error {
    margin-top: .85rem;
    color: var(--danger);
    font-size: .875rem;
}

.result {
    margin-top: 1.25rem;
    padding: 1rem;
    border-radius: .75rem;
    background: var(--accent-dim);
    border: 1px solid color-mix(in srgb, var(--accent) 35%, var(--border));
}

.result-head {
    display: flex;
    align-items: baseline;
    gap: .5rem;
    margin-bottom: .5rem;
}

.result-label {
    font-size: .7rem;
    text-transform: uppercase;
    letter-spacing: .06em;
    font-weight: 650;
    color: var(--muted);
}

.result-type {
    font-size: .7rem;
    color: var(--muted);
    opacity: .8;
}

/* Password: field and copy button sit on one line and share a border. */
.result-field-row {
    display: flex;
    align-items: stretch;
    gap: 0;
    border: 1px solid color-mix(in srgb, var(--accent) 28%, var(--border));
    border-radius: .6rem;
    background: color-mix(in srgb, var(--bg) 78%, #000);
    overflow: hidden;
    transition: border-color .12s ease, box-shadow .12s ease;
}

.result-field-row:focus-within {
    border-color: color-mix(in srgb, var(--accent) 65%, transparent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
}

/* Text: textarea stacks above a full-width copy button. */
.result-field-row.is-block {
    flex-direction: column;
}

.result-field {
    flex: 1 1 auto;
    min-width: 0;
    width: 100%;
    margin: 0;
    padding: .7rem .8rem;
    border: 0;
    background: transparent;
    color: var(--text);
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 1.05rem;
    line-height: 1.4;
}

.result-field:focus {
    outline: none;
}

.result-textarea {
    min-height: 7.5rem;
    resize: vertical;
    white-space: pre-wrap;
    word-break: break-word;
    display: block;
}

.copy-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .4rem;
    flex: 0 0 auto;
    padding: 0 .85rem;
    border: 0;
    border-left: 1px solid color-mix(in srgb, var(--accent) 22%, var(--border));
    background: color-mix(in srgb, var(--accent) 12%, transparent);
    color: var(--accent);
    font: inherit;
    font-size: .8rem;
    font-weight: 650;
    cursor: pointer;
    transition: background .12s ease, color .12s ease;
}

.result-field-row.is-block .copy-btn {
    border-left: 0;
    border-top: 1px solid color-mix(in srgb, var(--accent) 22%, var(--border));
    padding: .55rem .85rem;
    width: 100%;
}

.copy-btn:hover {
    background: color-mix(in srgb, var(--accent) 22%, transparent);
}

.copy-btn.is-copied {
    background: rgba(34, 197, 94, .18);
    color: #4ade80;
}

.copy-btn svg {
    width: 15px;
    height: 15px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.6;
    stroke-linecap: round;
    stroke-linejoin: round;
    flex: 0 0 auto;
}

.result-notice {
    margin-top: .75rem;
    font-size: .8rem;
    color: var(--muted);
}

.result-notice.is-final {
    padding: .6rem .75rem;
    border-radius: .5rem;
    border: 1px solid color-mix(in srgb, var(--warning) 40%, transparent);
    background: color-mix(in srgb, var(--warning) 12%, transparent);
    color: var(--warning);
    line-height: 1.45;
}

.result-notice.is-final strong {
    color: var(--warning);
}

.hint {
    font-size: .75rem;
    color: var(--muted);
    margin: .25rem 0 0;
}

.footer-note {
    margin-top: 1.5rem;
    font-size: .75rem;
    color: var(--muted);
    text-align: center;
}

.dev-banner {
    margin-top: 1rem;
    font-size: .75rem;
    color: var(--warning);
    text-align: center;
}

[hidden] { display: none !important; }