/* =========================================================
   Fume — Minimal utilitarian stylesheet
   ========================================================= */

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

:root {
    --bg:         #111318;
    --surface:    #1c1f26;
    --border:     #2a2d36;
    --text:       #e2e4ea;
    --muted:      #6b7280;
    --accent:     #6366f1;
    --accent-hover: #4f52d4;
    --danger:     #ef4444;
    --danger-bg:  #2a1515;
    --radius:     8px;
    --font:       -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --mono:       "JetBrains Mono", "Fira Code", monospace;
}

html, body {
    height: 100%;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font);
    font-size: 15px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ---- Centered page layout (login / setup) ---- */

.page-center {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.5rem 2rem;
    width: 100%;
    max-width: 400px;
}

.card-header {
    text-align: center;
    margin-bottom: 2rem;
}

.logo {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--accent);
    font-family: var(--mono);
}

.subtitle {
    color: var(--muted);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.info {
    color: var(--muted);
    font-size: 0.875rem;
    margin-bottom: 1.25rem;
    text-align: center;
}

/* ---- Alerts ---- */

.alert {
    border-radius: var(--radius);
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    margin-bottom: 1.25rem;
}

.alert-error {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid var(--danger);
}

/* ---- Forms ---- */

.field {
    margin-bottom: 1.25rem;
}

.field label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--muted);
    margin-bottom: 0.375rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.field input {
    width: 100%;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-family: var(--font);
    font-size: 0.9375rem;
    padding: 0.625rem 0.875rem;
    transition: border-color 0.15s;
    outline: none;
}

.field input:focus {
    border-color: var(--accent);
}

.field input::placeholder {
    color: var(--muted);
}

/* ---- Buttons ---- */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    font-family: var(--font);
    font-size: 0.9375rem;
    font-weight: 500;
    padding: 0.625rem 1.25rem;
    transition: background 0.15s, opacity 0.15s;
    text-decoration: none;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
    width: 100%;
    justify-content: center;
}

.btn-primary:hover {
    background: var(--accent-hover);
}

.btn-ghost {
    background: transparent;
    color: var(--muted);
    border: 1px solid var(--border);
}

.btn-ghost:hover {
    color: var(--text);
    border-color: var(--text);
}

/* ---- htmx spinner ---- */

.spinner {
    display: none;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

.htmx-request .spinner {
    display: inline-block;
}

.htmx-request.spinner {
    display: inline-block;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ---- App layout (authenticated pages) ---- */

.app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
    background: var(--surface);
}

.app-header .logo {
    font-size: 1.375rem;
}

.app-nav {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-user {
    color: var(--muted);
    font-size: 0.875rem;
}

.app-main {
    flex: 1;
    padding: 2rem 1.5rem;
    max-width: 960px;
    margin: 0 auto;
    width: 100%;
}

/* ---- Placeholder ---- */

.placeholder {
    text-align: center;
    padding: 4rem 1rem;
    color: var(--muted);
}

.placeholder p + p {
    margin-top: 0.5rem;
}

.muted {
    color: var(--muted);
    font-size: 0.875rem;
}

/* ---- Tables ---- */

.table-wrap {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

th {
    text-align: left;
    padding: 0.5rem 0.75rem;
    color: var(--muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.75rem;
    border-bottom: 1px solid var(--border);
}

td {
    padding: 0.625rem 0.75rem;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

tr:last-child td {
    border-bottom: none;
}

tr:hover td {
    background: rgba(255,255,255,0.02);
}

/* ---- Status badges ---- */

.badge {
    display: inline-block;
    padding: 0.2em 0.55em;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

.badge-pending      { background: #2a2a15; color: #d4a017; }
.badge-scanning     { background: #15202a; color: #60a5fa; }
.badge-clean        { background: #152a1e; color: #34d399; }
.badge-infected     { background: var(--danger-bg); color: var(--danger); }
.badge-pending_conversion { background: #1e152a; color: #a78bfa; }
.badge-converting   { background: #1e152a; color: #a78bfa; }
.badge-ready        { background: #152a1e; color: #34d399; }
.badge-failed       { background: var(--danger-bg); color: var(--danger); }
.badge-expired      { background: #1c1c1c; color: var(--muted); }
.badge-pdf-origin   { background: #2a1e0f; color: #fb923c; font-size: 0.65rem; margin-left: 0.35em; vertical-align: middle; }

/* ---- Conversion error indicator ---- */

.conversion-error {
    color: var(--danger);
    cursor: help;
    margin-left: 0.25em;
    font-size: 0.9em;
}

/* ---- Upload drop zone ---- */

.drop-zone {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 3rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
    background: transparent;
    position: relative;
}

.drop-zone:hover,
.drop-zone.dragover {
    border-color: var(--accent);
    background: rgba(99, 102, 241, 0.06);
}

.drop-zone input[type="file"] {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.drop-zone-icon {
    font-size: 2.5rem;
    line-height: 1;
    margin-bottom: 0.75rem;
    display: block;
}

.drop-zone-label {
    color: var(--text);
    font-size: 1rem;
    font-weight: 500;
}

.drop-zone-hint {
    color: var(--muted);
    font-size: 0.8125rem;
    margin-top: 0.375rem;
}

/* ---- Upload progress ---- */

.upload-progress {
    margin-top: 1rem;
    display: none;
}

.upload-progress.visible {
    display: block;
}

progress {
    width: 100%;
    height: 6px;
    border: none;
    border-radius: 3px;
    background: var(--border);
    overflow: hidden;
    appearance: none;
    -webkit-appearance: none;
}

progress::-webkit-progress-bar {
    background: var(--border);
}

progress::-webkit-progress-value {
    background: var(--accent);
    border-radius: 3px;
    transition: width 0.1s;
}

progress::-moz-progress-bar {
    background: var(--accent);
    border-radius: 3px;
}

/* ---- Upload result ---- */

.upload-result {
    margin-top: 1.25rem;
}

/* ---- Upload options (e.g. PDF convert checkbox) ---- */

.upload-option {
    margin-top: 1rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 1.1rem;
    height: 1.1rem;
    accent-color: var(--accent, #6c8);
}

.muted.small {
    font-size: 0.85rem;
    margin-top: 0.25rem;
}

/* ---- Section header ---- */

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
}

.section-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
}

/* ---- Empty state ---- */

.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--muted);
    border: 1px dashed var(--border);
    border-radius: var(--radius);
}

.empty-state p + p {
    margin-top: 0.5rem;
}

/* ---- Link button ---- */

.btn-link {
    background: none;
    border: none;
    color: var(--muted);
    cursor: pointer;
    font-size: 0.8125rem;
    font-family: var(--font);
    padding: 0;
    text-decoration: none;
    transition: color 0.15s;
}

.btn-link:hover {
    color: var(--danger);
}

.btn-sm {
    padding: 0.25rem 0.625rem;
    font-size: 0.8125rem;
}

/* ---- Responsive ---- */

@media (max-width: 480px) {
    .card {
        padding: 2rem 1.25rem;
    }
}