/* ==========================================================================
   Weeknummer Checker — Stylesheet v1.2.0
   ========================================================================== */

.wnc-root {
    --wnc-font:         'DM Sans', system-ui, sans-serif;
    --wnc-radius:       20px;
    --wnc-radius-sm:    10px;
    --wnc-shadow:       0 4px 32px rgba(0,0,0,.08), 0 1px 4px rgba(0,0,0,.04);

    --wnc-bg:           #ffffff;
    --wnc-surface:      #f5f7ff;
    --wnc-border:       #e8ecf5;
    --wnc-accent:       #1d6ef5;
    --wnc-accent-light: #e8f0fe;
    --wnc-text:         #111827;
    --wnc-text-muted:   #6b7280;
    --wnc-text-light:   #9ca3af;
    --wnc-today-bg:     #1d6ef5;
    --wnc-today-text:   #ffffff;
    --wnc-header-bg:    linear-gradient(135deg, #1d6ef5 0%, #0a3fa0 100%);
}

.wnc-root.wnc-theme-dark {
    --wnc-bg:           #141921;
    --wnc-surface:      #1e2635;
    --wnc-border:       #2a3347;
    --wnc-accent:       #4d8bff;
    --wnc-accent-light: #1a2d50;
    --wnc-text:         #f1f5f9;
    --wnc-text-muted:   #94a3b8;
    --wnc-text-light:   #475569;
    --wnc-today-bg:     #4d8bff;
    --wnc-today-text:   #ffffff;
    --wnc-header-bg:    linear-gradient(135deg, #1e2d4d 0%, #0f1827 100%);
    --wnc-shadow:       0 4px 32px rgba(0,0,0,.35), 0 1px 4px rgba(0,0,0,.2);
}

.wnc-root *, .wnc-root *::before, .wnc-root *::after {
    box-sizing: border-box; margin: 0; padding: 0;
}

.wnc-root {
    font-family: var(--wnc-font);
    background: var(--wnc-bg);
    border: 1px solid var(--wnc-border);
    border-radius: var(--wnc-radius);
    box-shadow: var(--wnc-shadow);
    width: 100%;
    max-width: 100%;
    overflow: hidden;
    color: var(--wnc-text);
    -webkit-font-smoothing: antialiased;
}

/* ==========================================================================
   DESKTOP LAYOUT — side by side
   ========================================================================== */

.wnc-inner {
    display: grid;
    grid-template-columns: 340px 1fr;
    grid-template-rows: 1fr auto;
    min-height: 200px;
}

/* Left column: header */
.wnc-header {
    grid-column: 1;
    grid-row: 1 / 3;
    background: var(--wnc-header-bg);
    padding: 36px 36px 32px;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.wnc-header::before {
    content: '';
    position: absolute; inset: 0;
    background: radial-gradient(ellipse at top right, rgba(255,255,255,.14) 0%, transparent 55%);
    pointer-events: none;
}
.wnc-header-label {
    font-size: 11px; font-weight: 700; letter-spacing: .14em;
    text-transform: uppercase; color: rgba(255,255,255,.65); margin-bottom: 10px;
}
.wnc-week-display { display: flex; align-items: baseline; gap: 14px; margin-bottom: 6px; }
.wnc-week-number {
    font-size: 96px; font-weight: 800; line-height: 1; color: #fff; letter-spacing: -5px;
    animation: wnc-pop .45s cubic-bezier(.175,.885,.32,1.275) both;
}
@keyframes wnc-pop {
    from { opacity: 0; transform: scale(.85) translateY(10px); }
    to   { opacity: 1; transform: scale(1)   translateY(0);    }
}
.wnc-week-meta { display: flex; flex-direction: column; gap: 4px; padding-bottom: 6px; }
.wnc-year-badge {
    display: inline-block; background: rgba(255,255,255,.2); color: #fff;
    font-size: 13px; font-weight: 600; padding: 3px 10px; border-radius: 20px;
    backdrop-filter: blur(4px);
}
.wnc-week-of-year { font-size: 12px; color: rgba(255,255,255,.55); }
.wnc-date-range {
    margin-top: auto;
    padding-top: 20px;
    font-size: 15px; color: rgba(255,255,255,.9);
    font-weight: 500; display: flex; align-items: center; gap: 8px;
    border-top: 1px solid rgba(255,255,255,.15);
}
.wnc-date-range-icon { width: 17px; height: 17px; opacity: .7; flex-shrink: 0; }

/* Right column top: today + days */
.wnc-right-top {
    grid-column: 2;
    grid-row: 1;
    display: flex;
    flex-direction: column;
    padding: 28px 32px 24px;
    gap: 20px;
}

/* Today row */
.wnc-today-row {
    display: flex;
    align-items: center;
    gap: 10px;
}
.wnc-today-dot {
    width: 9px; height: 9px; border-radius: 50%;
    background: var(--wnc-accent); flex-shrink: 0;
    animation: wnc-pulse 2s ease-in-out infinite;
}
@keyframes wnc-pulse {
    0%,100% { box-shadow: 0 0 0 0   rgba(29,110,245,.4); }
    50%      { box-shadow: 0 0 0 6px rgba(29,110,245,0);  }
}
.wnc-today-label { font-size: 13px; color: var(--wnc-accent); font-weight: 700; }
.wnc-today-full-date {
    margin-left: auto;
    font-size: 13px; color: var(--wnc-text-muted); font-weight: 500;
}

/* Days strip */
.wnc-days-strip {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 8px;
    animation: wnc-fade-up .4s ease both .12s;
}
@keyframes wnc-fade-up {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0);    }
}
.wnc-day-cell {
    display: flex; flex-direction: column; align-items: center; gap: 7px;
    padding: 12px 6px;
    border-radius: var(--wnc-radius-sm);
    background: var(--wnc-surface);
    border: 1px solid var(--wnc-border);
    transition: background .15s, border-color .15s, transform .15s;
}
.wnc-day-cell:hover {
    transform: translateY(-2px);
    border-color: var(--wnc-accent);
}
.wnc-day-name {
    font-size: 10px; font-weight: 700; text-transform: uppercase;
    letter-spacing: .07em; color: var(--wnc-text-light);
}
.wnc-day-num {
    font-size: 18px; font-weight: 600; color: var(--wnc-text); line-height: 1;
}
.wnc-day-cell.wnc-day-today {
    background: var(--wnc-today-bg);
    border-color: var(--wnc-today-bg);
}
.wnc-day-cell.wnc-day-today:hover { transform: translateY(-2px); }
.wnc-day-cell.wnc-day-today .wnc-day-name,
.wnc-day-cell.wnc-day-today .wnc-day-num { color: var(--wnc-today-text); }

/* Right column bottom: stats */
.wnc-footer {
    grid-column: 2;
    grid-row: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    border-top: 1px solid var(--wnc-border);
    background: var(--wnc-border);
    overflow: hidden;
}
.wnc-stat {
    background: var(--wnc-surface);
    padding: 16px 28px;
    display: flex; flex-direction: column; gap: 3px;
}
.wnc-stat-value { font-size: 22px; font-weight: 700; color: var(--wnc-text); line-height: 1; }
.wnc-stat-label { font-size: 11px; color: var(--wnc-text-muted); font-weight: 500; }

/* ==========================================================================
   MOBILE — stacked layout (≤ 640px)
   ========================================================================== */
@media (max-width: 640px) {
    .wnc-inner {
        display: flex;
        flex-direction: column;
    }
    .wnc-header {
        padding: 24px 22px 22px;
        border-radius: 0;
    }
    .wnc-week-number { font-size: 64px; }
    .wnc-date-range  { font-size: 13px; }
    .wnc-right-top   { padding: 18px 18px 16px; gap: 14px; }
    .wnc-days-strip  { gap: 5px; }
    .wnc-day-cell    { padding: 9px 4px; }
    .wnc-day-num     { font-size: 15px; }
    .wnc-stat        { padding: 13px 18px; }
    .wnc-stat-value  { font-size: 18px; }
}

/* misc */
.wnc-noscript { padding: 20px; text-align: center; font-size: 13px; color: var(--wnc-text-muted); }