@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,200..800;1,200..800&display=swap');



/* ── 1. Design Tokens ── */
:root {
    /* Dark mode (default) — teal palette */
    --bg: #040f12;
    --bg-card: #041216;
    --bg-input: #071a20;
    --bg-result: #06161b;
    --border: #0d262d;
    --border-focus: #2a8a8a;

    --text: #d0dfe4;
    --text-secondary: #8ba8b0;
    --text-muted: #567880;

    --accent: #2a8a8a;
    --accent-light: #3aada6;
    --accent-dark: #1d6b6b;

    --success: #3abfb0;
    --error: #e87474;

    /* Typography */
    --ff-body: 'Plus Jakarta Sans', sans-serif;
    --ff-mono: 'DM Mono', monospace;

    /* Radius */
    --r-sm: 6px;
    --r-md: 10px;
    --r-lg: 16px;
    --r-full: 9999px;
}

/* ── Light mode (auto-detect from browser) ── */
@media (prefers-color-scheme: light) {
    :root {
        --bg: #eef4f5;
        --bg-card: #f8fafa;
        --bg-input: #f0f5f6;
        --bg-result: #eaf2f3;
        --border: #c4d6da;
        --border-focus: #2a8a8a;

        --text: #122d33;
        --text-secondary: #3b6670;
        --text-muted: #7a9ea5;

        --accent: #2a8a8a;
        --accent-light: #3aada6;
        --accent-dark: #1d6b6b;
    }
}

/* ── 2. Reset ── */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--ff-body);
    color: var(--text);
    background: var(--bg);
    min-height: 100dvh;
    display: grid;
    place-items: center;
    padding: 1.5rem 1rem;
    transition: background 0.3s, color 0.3s;
}

/* ── 3. Layout ── */
.main-stage {
    width: 100%;
    max-width: 520px;
}

/* ── 4. Profile Card ── */
.profile-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    transition: background 0.3s, border-color 0.3s;
}

@media (prefers-color-scheme: light) {
    .profile-card {
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    }
}

/* ── 5. Card Header ── */
.card__header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
}

/* Avatar */
/* Header Icon */
.header-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--r-md);
    background: var(--bg-input);
    border: 1px solid var(--border);
    display: grid;
    place-items: center;
    flex-shrink: 0;
    color: var(--accent-light);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.header-icon svg {
    opacity: 0.8;
}

/* Title */
.card__title-block {
    flex: 1;
    min-width: 0;
}

.card__headline {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.card__subline {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.2rem;
}

/* Status badge */
.status-badge {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--r-full);
    padding: 0.25rem 0.75rem;
    font-size: 0.72rem;
    color: var(--text-muted);
    transition: all 0.3s;
}

.status-dot {
    width: 6px;
    height: 6px;
    border-radius: var(--r-full);
    background: var(--text-muted);
    transition: all 0.3s;
}

.status-badge.is-active .status-dot {
    background: var(--success);
    box-shadow: 0 0 6px var(--success);
}

.status-badge.is-active .status-text {
    color: var(--success);
}

/* ── 6. Card Body ── */
.card__body {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* ── 7. Input ── */
.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.input-label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: 0.02em;
    display: flex;
    align-items: baseline;
    gap: 0.6rem;
}

.input-label__hint {
    font-size: 0.7rem;
    font-weight: 400;
    text-transform: none;
    color: var(--text-muted);
    letter-spacing: 0;
}

.input-wrapper {
    display: flex;
    align-items: center;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--r-md);
    transition: border-color 0.15s, box-shadow 0.15s;
}

.input-wrapper:focus-within {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(45, 122, 84, 0.2);
}

.input-icon {
    padding: 0 0.6rem 0 1rem;
    color: var(--accent);
    font-size: 0.8rem;
    pointer-events: none;
}

.name-input {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    font-family: var(--ff-body);
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--text);
    padding: 0.85rem 0;
    caret-color: var(--accent-light);
}

.name-input::placeholder {
    color: var(--text-muted);
    font-weight: 400;
    font-style: italic;
}

.clear-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    font-size: 0.8rem;
    padding: 0.5rem 1rem;
    opacity: 0;
    pointer-events: none;
    transition: color 0.15s, opacity 0.15s;
}

.clear-btn.is-visible {
    opacity: 1;
    pointer-events: auto;
}

.clear-btn:hover {
    color: var(--error);
}

.char-counter {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-align: right;
    font-variant-numeric: tabular-nums;
}

/* ── 8. Result Card ── */
.result-card {
    background: var(--bg-result);
    border: 1px solid var(--border);
    border-radius: var(--r-md);
    padding: 1.5rem;
    text-align: center;
    transition: border-color 0.3s;
}

.result-card.is-active {
    border-color: var(--accent);
}

.result-card-label {
    font-size: .9rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent-light);
    margin-bottom: 0.6rem;
}

.result-card-handle {
    font-family: var(--ff-mono);
    font-size: clamp(1.4rem, 4vw, 2rem);
    font-weight: 500;
    color: var(--text);
    word-break: break-all;
    min-height: 2.4rem;
    transition: color 0.3s;
}

.result-card-handle.is-idle {
    color: var(--text-muted);
    font-size: 1.2rem;
}

.result-card-meta {
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-top: 0.6rem;
}

.result-card.is-long .result-card-handle {
    font-size: 1.2rem;
}



/* ── 10. Footer ── */
.card__footer {
    padding: 1.25rem 2rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.copy-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--accent);
    color: #fff;
    font-family: var(--ff-body);
    font-size: 0.85rem;
    font-weight: 600;
    border: none;
    border-radius: var(--r-full);
    padding: 0.6rem 1.5rem;
    cursor: pointer;
    transition: background 0.2s, opacity 0.2s;
}

.copy-btn:hover:not(:disabled) {
    background: var(--accent-light);
}

.copy-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.copy-btn__icon {
    font-size: 1rem;
    line-height: 1;
}

/* Validity Tag */
.validity-tag {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    transition: color 0.3s;
}

.validity-dot {
    width: 7px;
    height: 7px;
    border-radius: var(--r-full);
    background: var(--text-muted);
    flex-shrink: 0;
    transition: all 0.3s;
}

.validity-tag.is-valid .validity-dot {
    background: var(--success);
    box-shadow: 0 0 6px var(--success);
}

.validity-tag.is-valid {
    color: var(--success);
}

.validity-tag.is-error .validity-dot {
    background: var(--error);
}

.validity-tag.is-error {
    color: var(--error);
}

/* ── 11. Toast ── */
.toast {
    position: fixed;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%) translateY(60px);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--r-full);
    padding: 0.6rem 1.5rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-light);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    pointer-events: none;
    z-index: 100;
    opacity: 0;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.25s;
}

.toast.is-shown {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* ── 12. Responsive ── */
@media (max-width: 480px) {
    .card__header {
        padding: 1.25rem 1.25rem;
        gap: 0.75rem;
    }

    .card__body {
        padding: 1.25rem;
    }

    .card__footer {
        padding: 1rem 1.25rem 1.5rem;
        flex-direction: column;
        align-items: stretch;
    }

    .copy-btn {
        width: 100%;
        justify-content: center;
    }

    .status-badge {
        display: none;
    }
}