/* EWA layout and components. Colours come from css/themes.css. */

:root {
    --ewa-radius: 14px;
    --ewa-radius-sm: 8px;
    --ewa-font: "Inter", "Segoe UI Variable", "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
    --ewa-mono: "Cascadia Code", "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", ui-monospace, monospace;
}

/* Map the theme onto Bootstrap's variables so its components match. */
[data-theme] {
    --bs-body-bg: var(--ewa-bg);
    --bs-body-color: var(--ewa-text);
    --bs-body-font-family: var(--ewa-font);
    --bs-border-color: var(--ewa-border);
    --bs-secondary-color: var(--ewa-text-muted);
    --bs-link-color-rgb: unset;
    --bs-emphasis-color: var(--ewa-heading);
    --bs-tertiary-bg: var(--ewa-surface-2);
}

html, body {
    min-height: 100%;
}

body {
    font-family: var(--ewa-font);
    background: var(--ewa-bg-accent), var(--ewa-bg);
    background-attachment: fixed;
    color: var(--ewa-text);
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
    color: var(--ewa-heading);
    letter-spacing: -0.02em;
    font-weight: 700;
}

h1:focus { outline: none; }

a { color: var(--ewa-primary); }
a:hover { color: var(--ewa-primary-hover); }

.text-muted-ewa { color: var(--ewa-text-muted); }

/* Buttons */
.btn { border-radius: 10px; font-weight: 600; }
.btn-primary {
    --bs-btn-bg: var(--ewa-primary);
    --bs-btn-border-color: var(--ewa-primary);
    --bs-btn-color: var(--ewa-on-primary);
    --bs-btn-hover-bg: var(--ewa-primary-hover);
    --bs-btn-hover-border-color: var(--ewa-primary-hover);
    --bs-btn-hover-color: var(--ewa-on-primary);
    --bs-btn-active-bg: var(--ewa-primary-hover);
    --bs-btn-active-border-color: var(--ewa-primary-hover);
    --bs-btn-active-color: var(--ewa-on-primary);
    --bs-btn-disabled-bg: var(--ewa-primary);
    --bs-btn-disabled-border-color: var(--ewa-primary);
    --bs-btn-disabled-color: var(--ewa-on-primary);
}
.btn-outline-secondary {
    --bs-btn-color: var(--ewa-text);
    --bs-btn-border-color: var(--ewa-border);
    --bs-btn-hover-bg: var(--ewa-surface-2);
    --bs-btn-hover-color: var(--ewa-heading);
    --bs-btn-hover-border-color: var(--ewa-text-muted);
    --bs-btn-active-bg: var(--ewa-surface-2);
    --bs-btn-active-color: var(--ewa-heading);
    --bs-btn-bg: var(--ewa-surface);
}
.btn-danger-soft {
    color: var(--ewa-danger);
    background: var(--ewa-danger-soft);
    border: 1px solid transparent;
}
.btn-danger-soft:hover { color: var(--ewa-on-primary); background: var(--ewa-danger); }
.btn-ghost { color: var(--ewa-text); background: transparent; border: 1px solid transparent; }
.btn-ghost:hover { background: var(--ewa-surface-2); color: var(--ewa-heading); }

.btn:focus-visible, .form-control:focus, .form-select:focus, .form-check-input:focus {
    box-shadow: var(--ewa-focus);
    border-color: var(--ewa-primary);
}

.form-control, .form-select {
    background-color: var(--ewa-surface);
    border-color: var(--ewa-border);
    color: var(--ewa-text);
    border-radius: 10px;
}

/* App shell */
.app-shell { min-height: 100vh; display: flex; flex-direction: column; }

.app-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: var(--ewa-header-bg);
    backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--ewa-border);
}

.header-inner {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    min-height: 64px;
    flex-wrap: wrap;
}

.brand {
    display: flex;
    align-items: center;
    gap: .6rem;
    text-decoration: none;
    color: var(--ewa-heading);
    font-weight: 700;
    letter-spacing: -0.01em;
}
.brand:hover { color: var(--ewa-heading); }
.brand-tag {
    font-size: .7rem;
    font-weight: 700;
    padding: .15rem .45rem;
    border-radius: 999px;
    color: var(--ewa-primary);
    background: var(--ewa-primary-soft);
}

.main-nav { display: flex; gap: .25rem; }
.main-nav a {
    padding: .45rem .8rem;
    border-radius: 999px;
    color: var(--ewa-text-muted);
    text-decoration: none;
    font-weight: 600;
    font-size: .95rem;
}
.main-nav a:hover { color: var(--ewa-heading); background: var(--ewa-surface-2); }
.main-nav a.active { color: var(--ewa-primary); background: var(--ewa-primary-soft); }

.header-actions { margin-left: auto; display: flex; align-items: center; gap: .5rem; flex-wrap: wrap; }
.header-actions form { margin: 0; }

.theme-picker select {
    font-size: .85rem;
    padding: .3rem 1.8rem .3rem .6rem;
    border-radius: 999px;
}

.user-chip {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    max-width: 16rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: .9rem;
    color: var(--ewa-text);
    text-decoration: none;
    padding: .3rem .7rem;
    border-radius: 999px;
    border: 1px solid var(--ewa-border);
    background: var(--ewa-surface);
}
.user-chip::before {
    content: "";
    width: .55rem;
    height: .55rem;
    border-radius: 50%;
    background: var(--ewa-primary);
    flex: none;
}

.app-main { flex: 1; padding-top: 2rem; padding-bottom: 3rem; }

.app-footer {
    padding-top: 1.5rem;
    padding-bottom: 2rem;
    color: var(--ewa-text-muted);
    font-size: .85rem;
    border-top: 1px solid var(--ewa-border);
}

/* Surfaces */
.card-ewa {
    background: var(--ewa-surface);
    border: 1px solid var(--ewa-border);
    border-radius: var(--ewa-radius);
    box-shadow: var(--ewa-shadow);
}
.card-ewa > .card-body { padding: 1.5rem; }

.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-bottom: 1.5rem; }
.page-head h1 { margin: 0; font-size: 2rem; }
.page-head p { margin: .25rem 0 0; }

.eyebrow {
    display: inline-block;
    font-size: .8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--ewa-primary);
    margin-bottom: .75rem;
}

.breadcrumb-ewa { font-size: .9rem; color: var(--ewa-text-muted); margin-bottom: .5rem; }
.breadcrumb-ewa a { text-decoration: none; }

/* Home: hero */
.hero {
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    gap: 3rem;
    align-items: center;
    padding: 2rem 0 3rem;
}
.hero h1 { font-size: clamp(2.2rem, 4vw, 3.4rem); line-height: 1.08; margin-bottom: 1rem; }
.hero h1 .highlight {
    background: linear-gradient(90deg, var(--ewa-primary), var(--ewa-accent));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.hero .lead { color: var(--ewa-text-muted); font-size: 1.15rem; max-width: 36rem; }
.hero-actions { display: flex; gap: .75rem; flex-wrap: wrap; margin-top: 1.75rem; }
.hero-art img {
    width: 100%;
    height: auto;
    border-radius: 24px;
    box-shadow: 0 30px 60px -20px rgba(16, 60, 40, 0.35);
}

.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.feature { padding: 1.5rem; }
.feature h3 { font-size: 1.1rem; margin: .75rem 0 .4rem; }
.feature p { color: var(--ewa-text-muted); margin: 0; }
.feature-icon {
    width: 2.6rem;
    height: 2.6rem;
    display: grid;
    place-items: center;
    border-radius: 12px;
    font-family: var(--ewa-mono);
    font-weight: 700;
    font-size: .95rem;
}
.feature-icon.green { background: var(--ewa-primary-soft); color: var(--ewa-primary); }
.feature-icon.amber { background: var(--ewa-sub-bg); color: var(--ewa-sub-text); }
.feature-icon.violet { background: var(--ewa-accent-soft); color: var(--ewa-accent); }

/* Stats */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 1rem; margin-bottom: 1.5rem; }
.stat { padding: 1.1rem 1.25rem; }
.stat .label { font-size: .8rem; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; color: var(--ewa-text-muted); }
.stat .value { font-size: 1.9rem; font-weight: 750; color: var(--ewa-heading); line-height: 1.2; }
.stat .value.green { color: var(--ewa-primary); }
.stat .value.violet { color: var(--ewa-accent); }
.stat .value.amber { color: var(--ewa-sub-text); }

/* Upload */
.upload-zone {
    position: relative;
    border: 2px dashed var(--ewa-border);
    background: var(--ewa-surface);
    border-radius: var(--ewa-radius);
    padding: 2rem 1.5rem;
    text-align: center;
    transition: border-color .15s, background .15s;
    margin-bottom: 1.5rem;
}
.upload-zone:hover, .upload-zone:focus-within { border-color: var(--ewa-primary); background: var(--ewa-primary-soft); }
.upload-zone.busy { opacity: .7; }
.upload-zone input[type=file] {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}
.upload-zone .upload-icon {
    width: 3rem;
    height: 3rem;
    margin: 0 auto .75rem;
    border-radius: 14px;
    display: grid;
    place-items: center;
    background: var(--ewa-primary);
    color: var(--ewa-on-primary);
    font-weight: 800;
    font-size: 1.4rem;
}
.upload-zone .upload-title { font-weight: 700; color: var(--ewa-heading); }
.upload-zone .upload-title u { color: var(--ewa-primary); text-decoration-thickness: 2px; text-underline-offset: 3px; }
.upload-zone .upload-hint { font-size: .9rem; color: var(--ewa-text-muted); margin-top: .25rem; }

/* Notices */
.notice {
    border-radius: var(--ewa-radius-sm);
    padding: .75rem 1rem;
    margin-bottom: 1rem;
    font-weight: 500;
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: center;
}
.notice.success { background: var(--ewa-primary-soft); color: var(--ewa-primary); }
.notice.error { background: var(--ewa-danger-soft); color: var(--ewa-danger); }
.notice button { background: none; border: 0; color: inherit; font-size: 1.2rem; line-height: 1; }

/* Tables */
.table-ewa { width: 100%; border-collapse: separate; border-spacing: 0; }
.table-ewa th {
    font-size: .75rem;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--ewa-text-muted);
    font-weight: 700;
    padding: .75rem 1rem;
    border-bottom: 1px solid var(--ewa-border);
    background: var(--ewa-surface-2);
    text-align: left;
    white-space: nowrap;
}
.table-ewa th:first-child { border-top-left-radius: var(--ewa-radius); }
.table-ewa th:last-child { border-top-right-radius: var(--ewa-radius); }
.table-ewa td { padding: .8rem 1rem; border-bottom: 1px solid var(--ewa-border); vertical-align: middle; }
.table-ewa tr:last-child td { border-bottom: 0; }
.table-ewa tbody tr:hover td { background: var(--ewa-surface-2); }
.table-ewa .num { text-align: right; font-variant-numeric: tabular-nums; }
.table-ewa .actions { text-align: right; white-space: nowrap; }
.table-ewa .actions .btn + .btn { margin-left: .4rem; }
.table-scroll { overflow-x: auto; }

.file-name { display: flex; align-items: center; gap: .75rem; font-weight: 600; color: var(--ewa-heading); }
.file-badge {
    flex: none;
    width: 2.1rem;
    height: 2.1rem;
    border-radius: 8px;
    display: grid;
    place-items: center;
    background: var(--ewa-primary);
    color: var(--ewa-on-primary);
    font-weight: 800;
    font-size: .8rem;
}
.file-name .sub { display: block; font-weight: 400; font-size: .8rem; color: var(--ewa-text-muted); }

.empty-state { text-align: center; padding: 3rem 1rem; color: var(--ewa-text-muted); }
.empty-state h2 { font-size: 1.2rem; }

/* Analysis */
.section-title { font-size: 1.25rem; margin: 2rem 0 1rem; display: flex; align-items: center; gap: .6rem; }
.count-pill {
    font-size: .8rem;
    font-weight: 700;
    padding: .1rem .55rem;
    border-radius: 999px;
    background: var(--ewa-surface-2);
    border: 1px solid var(--ewa-border);
    color: var(--ewa-text-muted);
}

.fn-chip {
    display: inline-block;
    font-family: var(--ewa-mono);
    font-weight: 700;
    font-size: .85rem;
    padding: .15rem .55rem;
    border-radius: 6px;
    background: var(--ewa-accent-soft);
    color: var(--ewa-accent);
}
.fn-bar { height: 6px; border-radius: 999px; background: var(--ewa-accent-soft); min-width: 80px; }
.fn-bar span { display: block; height: 100%; border-radius: 999px; background: var(--ewa-accent); }

.toolbar { display: flex; gap: .75rem; align-items: center; flex-wrap: wrap; margin-bottom: 1rem; }
.toolbar .form-control { max-width: 24rem; }

.legend { display: flex; gap: 1rem; flex-wrap: wrap; font-size: .85rem; color: var(--ewa-text-muted); }
.legend span { display: inline-flex; align-items: center; gap: .35rem; }

.sheet-block { margin-bottom: 1rem; overflow: hidden; }
.sheet-block > summary {
    list-style: none;
    cursor: pointer;
    padding: 1rem 1.25rem;
    display: flex;
    align-items: center;
    gap: .75rem;
    font-weight: 700;
    color: var(--ewa-heading);
}
.sheet-block > summary::-webkit-details-marker { display: none; }
.sheet-block > summary::before {
    content: "";
    width: .5rem;
    height: .5rem;
    border-right: 2px solid var(--ewa-text-muted);
    border-bottom: 2px solid var(--ewa-text-muted);
    transform: rotate(-45deg);
    transition: transform .15s;
}
.sheet-block[open] > summary::before { transform: rotate(45deg); }
.sheet-block > summary .sheet-tab {
    font-size: .75rem;
    padding: .1rem .5rem;
    border-radius: 4px;
    background: var(--ewa-primary-soft);
    color: var(--ewa-primary);
}
.sheet-block .table-ewa th:first-child, .sheet-block .table-ewa th:last-child { border-radius: 0; }
.sheet-block .show-more { padding: .75rem 1.25rem; border-top: 1px solid var(--ewa-border); }

.cell-ref {
    font-family: var(--ewa-mono);
    font-weight: 700;
    font-size: .85rem;
    color: var(--ewa-heading);
    white-space: nowrap;
}

.formula {
    font-family: var(--ewa-mono);
    font-size: .88rem;
    background: var(--ewa-code-bg);
    border: 1px solid var(--ewa-border);
    border-radius: 6px;
    padding: .3rem .55rem;
    display: inline-block;
    max-width: 100%;
    white-space: pre-wrap;
    word-break: break-word;
}
.tok-fn { color: var(--ewa-accent); font-weight: 700; }
.tok-ref { color: var(--ewa-info); }
.tok-str { color: var(--ewa-warn); }
.tok-num { color: var(--ewa-number); }
.tok-name { color: var(--ewa-info); font-style: italic; }
.tok-sub {
    background: var(--ewa-sub-bg);
    color: var(--ewa-sub-text);
    border: 1px solid var(--ewa-sub-border);
    border-radius: 4px;
    padding: 0 .2rem;
    font-weight: 700;
    cursor: help;
}
.tag {
    font-size: .7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .05em;
    padding: .1rem .4rem;
    border-radius: 4px;
    background: var(--ewa-surface-2);
    border: 1px solid var(--ewa-border);
    color: var(--ewa-text-muted);
    margin-left: .4rem;
}

.loading { display: flex; align-items: center; gap: .75rem; padding: 3rem 0; color: var(--ewa-text-muted); justify-content: center; }
.spinner {
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 50%;
    border: 3px solid var(--ewa-primary-soft);
    border-top-color: var(--ewa-primary);
    animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Account (Identity) pages */
.auth-card { max-width: 30rem; margin: 1rem auto; }
.auth-card h1 { font-size: 1.75rem; }

@media (max-width: 900px) {
    .hero { grid-template-columns: 1fr; gap: 2rem; padding-top: 0; }
    .feature-grid { grid-template-columns: 1fr; }
    .header-inner { gap: .75rem; padding-top: .5rem; padding-bottom: .5rem; }
    .brand-name { display: none; }
}

/* Blazor template styles kept for validation and error UI */
.valid.modified:not([type=checkbox]) { outline: 1px solid var(--ewa-success); }
.invalid { outline: 1px solid var(--ewa-danger); }
.validation-message { color: var(--ewa-danger); }

#blazor-error-ui {
    color-scheme: light only;
    background: lightyellow;
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
    box-sizing: border-box;
    display: none;
    left: 0;
    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
}
#blazor-error-ui .dismiss { cursor: pointer; position: absolute; right: 0.75rem; top: 0.5rem; }

.blazor-error-boundary { background: #b32121; padding: 1rem; color: white; }
.blazor-error-boundary::after { content: "An error has occurred."; }

.darker-border-checkbox.form-check-input { border-color: var(--ewa-text-muted); }

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
    color: var(--bs-secondary-color);
    text-align: end;
}
.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder { text-align: start; }
.form-floating > label { color: var(--ewa-text-muted); }