/* ============================================================
   TOTP Generator — totp-generator.css
   All rules are prefixed with .totp- to avoid collisions.
   Uses site CSS variables: --color-bg, --color-surface,
   --color-border, --color-text-dark, --color-text-medium,
   --color-text-light, --color-primary, --color-secondary,
   --shadow-lg
   ============================================================ */

/* ── Hero shell ───────────────────────────────────────────── */
.totp-hero {
    background: linear-gradient(
        135deg,
        color-mix(in srgb, var(--color-primary) 12%, var(--color-surface)),
        var(--color-surface)
    );
    border: 1px solid var(--color-border);
    border-radius: 1.5rem;
    padding: 2rem;
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg, 0 10px 40px rgba(0,0,0,.12));
}

.totp-hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.totp-hero-glyph {
    position: absolute;
    font-weight: 900;
    opacity: .06;
    color: var(--color-primary);
    line-height: 1;
    user-select: none;
}

.totp-hero-glyph--1 { font-size: 7rem; top: -1rem; left: 1rem; }
.totp-hero-glyph--2 { font-size: 5rem; bottom: 0;  right: 2rem; color: var(--color-secondary, var(--color-primary)); }
.totp-hero-glyph--3 { font-size: 3.5rem; top: 40%; right: 15%; }

/* ── Privacy banner ───────────────────────────────────────── */
.totp-privacy-banner {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.875rem 1rem;
    border-radius: 0.75rem;
    background: color-mix(in srgb, #3b82f6 8%, var(--color-surface));
    border: 1px solid color-mix(in srgb, #3b82f6 30%, transparent);
    color: var(--color-text-medium);
    font-size: 0.875rem;
    line-height: 1.5;
    margin-bottom: 1.5rem;
}

.totp-privacy-banner__icon {
    flex-shrink: 0;
    color: #3b82f6;
    font-size: 1rem;
    margin-top: 0.1rem;
}

/* ── Main card ────────────────────────────────────────────── */
.totp-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 1.25rem;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,.06);
}

.totp-card__header {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary, var(--color-primary)));
    padding: 1.25rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.totp-card__header-icon {
    width: 2.25rem;
    height: 2.25rem;
    background: rgba(255,255,255,.18);
    border-radius: 0.625rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.totp-card__header-title {
    font-size: 1rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: 0.01em;
}

.totp-card__body {
    padding: 1.5rem;
}

/* ── Form grid ────────────────────────────────────────────── */
.totp-form-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

@media (min-width: 640px) {
    .totp-form-grid { grid-template-columns: 1fr 1fr; }
}

.totp-form-grid--full { grid-column: 1 / -1; }

/* ── Secret row ───────────────────────────────────────────── */
.totp-secret-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: stretch;
}

.totp-secret-row input {
    flex: 1;
    flex-basis: 14rem;
    min-width: 0;
    font-family: ui-monospace, 'Cascadia Code', 'Fira Code', monospace;
    font-size: 0.8rem;
    letter-spacing: 0.06em;
}

/* ── Select options ───────────────────────────────────────── */
.totp-select {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: 0.5rem;
    background: var(--color-bg);
    color: var(--color-text-dark);
    font-size: 0.875rem;
    cursor: pointer;
    transition: border-color .15s;
}

.totp-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 20%, transparent);
}

/* ── Generate button ──────────────────────────────────────── */
.totp-generate-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.totp-generate-btn:hover {
    transform: translateY(-1px);
}
.totp-generate-btn:active { transform: translateY(0); }

/* ── QR card ──────────────────────────────────────────────── */
.totp-qr-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.totp-qr-container {
    width: 10rem;
    height: 10rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    border: 2px solid var(--color-border);
    border-radius: 1rem;
    padding: 0.5rem;
    position: relative;
}

.totp-qr-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-text-light);
    font-size: 0.75rem;
    text-align: center;
}

.totp-qr-container canvas,
.totp-qr-container img {
    max-width: 100%;
    max-height: 100%;
    border-radius: 0.25rem;
}

.totp-uri-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    width: 100%;
}

.totp-uri-input {
    flex: 1;
    min-width: 0;
    font-family: ui-monospace, monospace;
    font-size: 0.72rem;
    letter-spacing: 0.01em;
    word-break: break-all;
}

/* ── Live code card ───────────────────────────────────────── */
.totp-live-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
    padding: 1.75rem 1.5rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 1.25rem;
    text-align: center;
}

.totp-code-display {
    font-family: ui-monospace, 'Cascadia Code', 'Fira Code', monospace;
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: 0.25em;
    color: var(--color-text-dark);
    line-height: 1;
    transition: color .4s;
    min-height: 1em;
    max-width: 100%;
    overflow-wrap: anywhere;
}

.totp-code-display--green  { color: #16a34a; }
.totp-code-display--amber  { color: #d97706; }
.totp-code-display--red    { color: #dc2626; }

/* Digits separator */
.totp-code-display[data-digits="6"]  { letter-spacing: .28em; }
.totp-code-display[data-digits="8"]  { letter-spacing: .18em; font-size: 2.4rem; }

/* ── SVG countdown ────────────────────────────────────────── */
.totp-countdown-wrap {
    position: relative;
    width: 4rem;
    height: 4rem;
}

.totp-countdown-svg { transform: rotate(-90deg); }

.totp-countdown-track {
    fill: none;
    stroke: var(--color-border);
    stroke-width: 4;
}

.totp-countdown-arc {
    fill: none;
    stroke: #16a34a;
    stroke-width: 4;
    stroke-linecap: round;
    transition: stroke .4s, stroke-dashoffset .9s linear;
}

.totp-countdown-arc--amber { stroke: #d97706; }
.totp-countdown-arc--red   { stroke: #dc2626; }

.totp-countdown-label {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--color-text-dark);
    font-variant-numeric: tabular-nums;
}

/* ── Copy button ──────────────────────────────────────────── */
.totp-copy-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.45rem 1rem;
    border: 1px solid color-mix(in srgb, var(--color-primary) 55%, var(--color-border));
    border-radius: 0.5rem;
    background: transparent;
    color: var(--color-primary);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: background .15s, color .15s, border-color .15s;
}

.totp-copy-btn:hover {
    background: color-mix(in srgb, var(--color-primary) 10%, transparent);
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.totp-copy-btn--success {
    background: #16a34a !important;
    color: #fff !important;
    border-color: #16a34a !important;
}

.totp-action-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    white-space: nowrap;
}

/* ── Download button ──────────────────────────────────────── */
.totp-dl-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
}

/* ── "How it works" grid ──────────────────────────────────── */
.totp-steps-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

@media (min-width: 768px) {
    .totp-steps-grid { grid-template-columns: repeat(4, 1fr); }
}

.totp-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.6rem;
    padding: 1.25rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: 1rem;
    background: var(--color-surface);
    transition: box-shadow .2s, transform .2s;
}

.totp-step:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,.08);
    transform: translateY(-2px);
}

.totp-step__emoji {
    font-size: 2rem;
    line-height: 1;
}

.totp-step__title {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--color-text-dark);
}

.totp-step__desc {
    font-size: 0.8rem;
    color: var(--color-text-medium);
    line-height: 1.5;
}

/* ── Placeholder state ────────────────────────────────────── */
.totp-placeholder {
    color: var(--color-text-light);
    font-size: 0.8rem;
    font-style: italic;
}

/* ── Responsive tweaks ────────────────────────────────────── */
@media (max-width: 639px) {
    .totp-hero { padding: 1.25rem; }
    .totp-card__body { padding: 1rem; }
    .totp-secret-row input,
    .totp-uri-input {
        flex-basis: 100%;
    }
    .totp-secret-row .totp-action-btn,
    .totp-uri-row .totp-action-btn {
        flex: 1 1 0;
    }
    .totp-code-display {
        font-size: 2.25rem;
        letter-spacing: 0.12em;
    }
    .totp-code-display[data-digits="6"],
    .totp-code-display[data-digits="8"] {
        letter-spacing: 0.1em;
    }
}