/* Shared header geometry keeps navigation from shifting between pages. */
html {
    scrollbar-gutter: stable;
}

/* Ruled notebook paper shared by every page. */
body {
    color: #26364d !important;
    background-color: #fffdf7 !important;
    background-image:
        linear-gradient(90deg, transparent 0, transparent 62px, rgba(205, 75, 75, .18) 62px, rgba(205, 75, 75, .18) 64px, transparent 64px),
        repeating-linear-gradient(180deg, transparent 0, transparent 31px, rgba(50, 103, 169, .18) 31px, rgba(50, 103, 169, .18) 33px) !important;
    background-attachment: fixed !important;
    cursor: url("nav-icons/pen-cursor.png?v=4") 2 2, auto;
}

input,
textarea,
[contenteditable="true"] {
    cursor: text;
}

a,
button,
summary,
label,
select {
    cursor: url("nav-icons/pen-cursor.png?v=4") 2 2, pointer !important;
}

body::before {
    content: none;
}

.intro,
.site-footer {
    background-color: rgba(255, 254, 249, .98) !important;
}

.site-shell,
.wrap {
    width: 100% !important;
    max-width: 1200px !important;
    margin-left: auto !important;
    margin-right: auto !important;
    padding-left: 22px !important;
    padding-right: 22px !important;
    padding-top: 22px !important;
    padding-bottom: 22px !important;
    box-sizing: border-box !important;
}

.site-shell > header,
.wrap > header {
    position: sticky !important;
    top: 22px !important;
    z-index: 1000 !important;
    isolation: isolate;
    overflow: visible !important;
    box-sizing: border-box !important;
    display: grid !important;
    grid-template-columns: 260px minmax(0, 1fr) !important;
    align-items: center !important;
    gap: 18px !important;
    min-height: 82px !important;
    padding: 16px 20px !important;
    margin-bottom: 16px !important;
    border: 1px solid #c9bb96 !important;
    border-radius: 8px !important;
    background: rgba(255, 252, 239, .97) !important;
    box-shadow: 0 7px 18px rgba(73, 62, 39, .16) !important;
}

.site-shell > header::before,
.wrap > header::before {
    content: "";
    position: absolute;
    z-index: -1;
    top: -22px;
    bottom: -10px;
    left: 0;
    right: 0;
    width: auto;
    transform: none;
    border-radius: 0 0 8px 8px;
    pointer-events: none;
    background: #fffdf7;
    box-shadow: 0 8px 14px rgba(73, 62, 39, .08);
}

.site-shell > article,
.site-shell > main,
.wrap > article,
.wrap > main,
.wrap > footer {
    border-color: #c9bb96 !important;
    background-color: rgba(255, 252, 239, .96) !important;
    box-shadow: 0 8px 22px rgba(73, 62, 39, .13) !important;
}

.panel,
.summary-card,
.capital-bar,
.content-card,
.tool-card,
.calculator-card,
.lookup-card,
.accordion-item {
    border-color: #c9bb96 !important;
    background-color: #fffdf4 !important;
    box-shadow: 0 5px 13px rgba(73, 62, 39, .12) !important;
}

input,
select,
textarea {
    border-color: #9aa8b5 !important;
    background-color: #fffef8 !important;
}

table,
.table-wrap {
    border-color: #c9bb96 !important;
    background-color: #fffef8 !important;
}

th {
    background-color: #e8e2d1 !important;
    color: #26364d !important;
}

h1,
h2,
h3,
.brand {
    color: #243b64 !important;
}

.site-shell > header .brand,
.wrap > header > strong {
    position: relative;
    display: flex;
    align-items: center;
    width: 260px !important;
    height: 82px;
    min-height: 82px;
    margin: 0 !important;
    overflow: hidden;
    color: transparent !important;
    font-size: 0 !important;
    line-height: 0 !important;
    white-space: nowrap;
    background: url("brand-wordmark-v2.png") center 0 / 205px auto no-repeat !important;
}

.site-shell > header .brand::after,
.wrap > header > strong::after {
    content: "台股交易紀錄與損益試算工具";
    position: absolute;
    top: auto;
    bottom: 2px;
    left: 0;
    width: 260px;
    color: #586a82;
    font-family: "Noto Sans TC", "Microsoft JhengHei", sans-serif;
    font-size: .9rem;
    font-weight: 800;
    letter-spacing: .02em;
    line-height: 1.2;
    text-align: center;
    white-space: nowrap;
    transform: none;
}

.site-shell > header .brand a,
.wrap > header > strong a {
    display: block;
    width: 100%;
    height: 100%;
    color: transparent !important;
    text-decoration: none !important;
}

.site-shell > header nav,
.wrap > header nav {
    display: grid !important;
    grid-template-columns: repeat(7, minmax(0, 1fr)) !important;
    align-items: stretch !important;
    gap: 7px !important;
    width: 100% !important;
    margin: 0 !important;
}

.site-shell > header nav a,
.wrap > header nav a {
    box-sizing: border-box !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    min-width: 0 !important;
    flex-direction: column !important;
    gap: 5px !important;
    min-height: 78px !important;
    padding: 8px 4px 7px !important;
    border-radius: 8px !important;
    font-size: .7rem !important;
    font-weight: 900 !important;
    line-height: 1.15 !important;
    text-align: center !important;
    white-space: nowrap !important;
    box-shadow: 0 5px 10px rgba(45, 61, 82, .16) !important;
    transition: transform .2s ease, box-shadow .2s ease, filter .2s ease !important;
}

.site-shell > header nav a::before,
.wrap > header nav a::before {
    content: "";
    display: block;
    width: 32px;
    height: 32px;
    flex: 0 0 32px;
    background: center / contain no-repeat;
    filter: drop-shadow(0 5px 4px rgba(29, 53, 87, .45));
    transition: transform .2s ease, filter .2s ease;
}

.site-shell > header nav a:nth-child(1)::before,
.wrap > header nav a:nth-child(1)::before { background-image: url("nav-icons/profit.svg"); }
.site-shell > header nav a:nth-child(2)::before,
.wrap > header nav a:nth-child(2)::before { background-image: url("nav-icons/dividend.svg"); }
.site-shell > header nav a:nth-child(3)::before,
.wrap > header nav a:nth-child(3)::before { background-image: url("nav-icons/journal.svg"); }
.site-shell > header nav a:nth-child(4)::before,
.wrap > header nav a:nth-child(4)::before { background-image: url("nav-icons/guide.svg"); }
.site-shell > header nav a:nth-child(5)::before,
.wrap > header nav a:nth-child(5)::before { background-image: url("nav-icons/costs.svg"); }
.site-shell > header nav a:nth-child(6)::before,
.wrap > header nav a:nth-child(6)::before { background-image: url("nav-icons/broker.svg"); }
.site-shell > header nav a:nth-child(7)::before,
.wrap > header nav a:nth-child(7)::before { background-image: url("nav-icons/premium.svg"); }

.site-shell > header nav a:hover,
.wrap > header nav a:hover {
    z-index: 2;
    transform: translateY(-5px) scale(1.04);
    box-shadow: 0 10px 18px rgba(36, 74, 134, .3) !important;
}

.site-shell > header nav a:hover::before,
.wrap > header nav a:hover::before {
    transform: translateY(-2px) scale(1.18);
    filter: drop-shadow(0 9px 6px rgba(29, 53, 87, .66));
}

.site-shell > header nav a.active::before,
.wrap > header nav a.active::before {
    filter: brightness(0) invert(1) drop-shadow(0 5px 4px rgba(0, 0, 0, .3));
}

/* Calculators are blue; learning and lookup destinations are warm neutral. */
.site-shell > header nav a:nth-child(-n+3),
.wrap > header nav a:nth-child(-n+3) {
    border-color: #93c5fd !important;
    background: #eff6ff !important;
    color: #1d4ed8 !important;
}

.site-shell > header nav a:nth-child(n+4),
.wrap > header nav a:nth-child(n+4) {
    border-color: #fed7aa !important;
    background: #fff7ed !important;
    color: #9a3412 !important;
}

.site-shell > header nav a:nth-child(n+6),
.wrap > header nav a:nth-child(n+6) {
    border-color: #86efac !important;
    background: #ecfdf5 !important;
    color: #047857 !important;
}

.site-shell > header nav a:nth-child(-n+3).active,
.wrap > header nav a:nth-child(-n+3).active {
    border-color: #1d4ed8 !important;
    background: #2563eb !important;
    color: #fff !important;
    box-shadow: 0 5px 12px rgba(37, 99, 235, .24) !important;
}

.site-shell > header nav a:nth-child(n+4):nth-child(-n+5).active,
.wrap > header nav a:nth-child(n+4):nth-child(-n+5).active {
    border-color: #c2410c !important;
    background: #ea580c !important;
    color: #fff !important;
    box-shadow: 0 5px 12px rgba(194, 65, 12, .22) !important;
}

.site-shell > header nav a:nth-child(n+6).active,
.wrap > header nav a:nth-child(n+6).active {
    border-color: #047857 !important;
    background: #059669 !important;
    color: #fff !important;
    box-shadow: 0 5px 12px rgba(4, 120, 87, .22) !important;
}

@media (max-width: 820px) {
    .site-shell > header,
    .wrap > header {
        grid-template-columns: 1fr !important;
        min-height: 0 !important;
    }
}

@media (max-width: 760px) {
    .site-shell > header nav,
    .wrap > header nav {
        grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    }
}

/* Shared question-and-answer accordion used by explanatory pages. */
.accordion-list {
    display: grid;
    gap: 10px;
    margin: 16px 0;
}

.accordion-item {
    margin: 0 !important;
    padding: 0 !important;
    overflow: hidden;
    border: 1px solid #cbd5e1 !important;
    border-radius: 9px !important;
    background: #fff !important;
    box-shadow: 0 4px 10px rgba(15, 23, 42, .1);
}

.accordion-item > summary {
    padding: 13px 16px;
    color: #0f172a;
    font-size: 1.05rem;
    font-weight: 900;
    line-height: 1.45;
    cursor: pointer;
}

.accordion-item[open] > summary {
    border-bottom: 1px solid #dbe4f0;
    background: #eff6ff;
    color: #1d4ed8;
}

.accordion-answer {
    padding: 14px 17px;
    color: #475569;
}

.accordion-answer > :first-child {
    margin-top: 0 !important;
}

.accordion-answer > :last-child {
    margin-bottom: 0 !important;
}

.accordion-answer p {
    margin: 0 0 10px;
}

.accordion-answer li + li {
    margin-top: 6px;
}