/* ─── Backdrop ──────────────────────────────────────────────── */
#completion-backdrop {
    position: fixed;
    inset: 0;
    z-index: 200;
    background: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: completion-backdrop-in 220ms ease-out;
}
#completion-backdrop[hidden] { display: none; }

@keyframes completion-backdrop-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes completion-card-in {
    from { transform: scale(0.96) translateY(6px); opacity: 0; }
    to   { transform: scale(1) translateY(0); opacity: 1; }
}
@keyframes completion-stamp-in {
    0%   { transform: scale(0.4) rotate(-8deg); opacity: 0; }
    65%  { transform: scale(1.08) rotate(2deg); opacity: 1; }
    100% { transform: scale(1) rotate(0); opacity: 1; }
}

/* ─── Card ──────────────────────────────────────────────────── */
.completion-card {
    position: relative;
    background: var(--color-surface, #FFFDF5);
    border: 2px solid var(--color-text, #1A1A1A);
    border-radius: 6px;
    padding: 0;
    max-width: 420px;
    width: 90%;
    box-shadow: 6px 6px 0 rgba(26, 26, 26, 0.20);
    text-align: center;
    outline: none;
    overflow: hidden;
    animation: completion-card-in 240ms cubic-bezier(0.2, 0.7, 0.3, 1);
}

/* Top accent ribbon — green by default, yellow for "all complete". */
.completion-card::before {
    content: "";
    display: block;
    height: 4px;
    background: var(--color-success, #1F8F4E);
}
.completion-card--all::before {
    background: var(--color-yellow-sticky, #F5C24E);
}

/* Stamp label — mono uppercase tag above the title (COMPLETED /
   ALL DONE). Tertiary ink by default; warning amber on All-Done. */
.completion-eyebrow {
    display: inline-block;
    font-family: var(--font-mono, ui-monospace, 'IBM Plex Mono', 'SF Mono', Menlo, monospace);
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-text-tertiary, #6A695F);
    margin: 0 0 18px;
}
.completion-card--all .completion-eyebrow { color: var(--color-warning, #B45A0E); }

.completion-body {
    padding: 48px 32px 32px;
}
/* All-Done variant — symmetric 48 px top/bottom (no decorative ribbon
   loss to balance against, so the card sits centred). */
.completion-card--all .completion-body {
    padding-bottom: 48px;
}

/* ─── Stamp icon ────────────────────────────────────────────── */
.completion-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-surface, #FFFDF5);
    border: 2px solid var(--color-text, #1A1A1A);
    border-radius: 4px;
    box-shadow: 3px 3px 0 var(--color-text, #1A1A1A);
    font-family: var(--font-display, 'Space Grotesk', sans-serif);
    font-weight: 700;
    font-size: 30px;
    line-height: 1;
    color: var(--color-success, #1A7A65);
    animation: completion-stamp-in 320ms cubic-bezier(0.2, 0.8, 0.4, 1.3);
}
.completion-card--all .completion-icon {
    background: var(--color-yellow-sticky, #FFCC66);
    color: var(--color-text, #1A1A1A);
}

/* ─── Title + subtitle ──────────────────────────────────────── */
.completion-title {
    font-family: var(--font-display, 'Space Grotesk', sans-serif);
    font-size: 22px;
    font-weight: 700;
    line-height: 1.22;
    letter-spacing: -0.02em;
    color: var(--color-text, #1A1A1A);
    margin: 0 0 4px;
}
.completion-subtitle {
    font-family: var(--font-family, 'Inter', sans-serif);
    font-size: 14.5px;
    line-height: 1.55;
    color: var(--color-text-secondary, #4a4a4a);
    margin: 0 0 18px;
}

/* ─── Buttons — full-width column inside the body's 32 px padding. */
.completion-buttons {
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: stretch;
    width: 100%;
}

.completion-btn-primary,
.completion-btn-secondary,
.btn-completion-primary,
.btn-completion-secondary {
    width: 100%;
    height: 48px;
    padding: 0 16px;
    border-radius: 2px;
    font-family: var(--font-family, 'Inter', sans-serif);
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    cursor: pointer;
    transition: background var(--transition-fast, 150ms ease-out), transform 60ms ease-out;
    box-shadow: 3px 3px 0 rgba(0, 0, 0, 0.20);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
}

.completion-btn-primary,
.btn-completion-primary {
    background: var(--color-success, #1A7A65);
    color: #fff;
    border: 1px solid var(--color-success-border, #0F5C4A);
}
.completion-btn-primary:hover,
.btn-completion-primary:hover { background: var(--color-success-hover, #22926F); }
.completion-btn-primary:active,
.btn-completion-primary:active { transform: scale(0.97); }

.completion-btn-secondary,
.btn-completion-secondary {
    background: var(--color-surface, #FFFDF5);
    color: var(--color-text-secondary, #4a4a4a);
    border: 1px solid var(--color-border, rgba(26, 26, 26, 0.15));
}
.completion-btn-secondary:hover,
.btn-completion-secondary:hover {
    background: var(--color-surface-hover, #EDE9D9);
    color: var(--color-text, #1A1A1A);
}
.completion-btn-secondary:active,
.btn-completion-secondary:active { transform: scale(0.97); }