@font-face { font-family:'Silkscreen'; font-weight:400; src:url('../fonts/silkscreen-400.ttf') format('truetype'); }
@font-face { font-family:'Silkscreen'; font-weight:700; src:url('../fonts/silkscreen-700.ttf') format('truetype'); }
@font-face { font-family:'JetBrains Mono'; font-weight:400; src:url('../fonts/jetbrains-mono-400.ttf') format('truetype'); }

:root {
    --bg:#1e293b; --surface:#273349; --raised:#2e3d56; --border:#384a64;
    --dim:#64748b; --muted:#94a3b8; --text:#cbd5e1; --bright:#f1f5f9;
    --accent:#38bdf8; --accent2:#818cf8; --danger:#fb7185; --ok:#4ade80;
    --pixel:'Silkscreen', cursive;
    --mono:'JetBrains Mono', monospace;
    --radius:3px;
    --radius-lg:6px;
    --shadow-card:0 1px 2px rgba(0,0,0,0.3), 0 8px 24px -8px rgba(0,0,0,0.4);
    --shadow-popover:0 8px 24px rgba(0,0,0,0.4);
    --shadow-button:0 4px 12px -4px rgba(56,189,248,0.4);
    --focus-ring:0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent);
}
* { margin:0; padding:0; box-sizing:border-box; }
body {
    font-family:var(--mono);
    background:var(--bg); color:var(--text);
    min-height:100dvh; display:flex; flex-direction:column;
    -webkit-font-smoothing:antialiased;
}
.pixel { font-family:var(--pixel); }
.hidden { display:none !important; }
.shrink { flex-shrink:0; }
.spacer { flex:1; }

/* ─────────────────────────────────────────────────────────────────
   Header
   ───────────────────────────────────────────────────────────────── */

header {
    padding:12px 20px; border-bottom:1px solid var(--border);
    display:flex; align-items:center; gap:12px; flex-shrink:0;
    background:var(--surface);
    position:relative;
}
header .brand-icon {
    color:var(--accent); font-size:18px; line-height:1;
    filter: drop-shadow(0 0 8px color-mix(in srgb, var(--accent) 35%, transparent));
}
header h1 {
    font-family:var(--pixel); font-size:14px; color:var(--accent);
    letter-spacing:0.05em;
}
.header-status {
    background:none; border:none; padding:4px 8px; cursor:pointer;
    font-family:var(--pixel); font-size:9px; color:var(--dim);
    display:inline-flex; align-items:center; gap:6px;
    border-radius:var(--radius);
    transition: color .15s, background .15s;
}
.header-status .ph { font-size:12px; }
.header-status:hover {
    color: var(--accent);
    background: color-mix(in srgb, var(--accent) 10%, transparent);
}
.header-status.has-unread {
    color: var(--accent);
    position: relative;
}
.header-status.has-unread::after {
    content:''; position:absolute; top:2px; right:2px;
    width:6px; height:6px; border-radius:50%;
    background:var(--danger);
    box-shadow: 0 0 6px color-mix(in srgb, var(--danger) 60%, transparent);
}
.header-status:focus-visible { outline:none; box-shadow: var(--focus-ring); }
header .dot {
    width:8px; height:8px; border-radius:50%;
    background:var(--accent); animation:pulse 2s ease-in-out infinite;
    box-shadow: 0 0 8px color-mix(in srgb, var(--accent) 60%, transparent);
}
@keyframes pulse {
    0%,100% { opacity:1; transform:scale(1); }
    50%     { opacity:0.4; transform:scale(0.85); }
}
header .user {
    font-family:var(--pixel); font-size:10px; color:var(--muted);
    display:flex; align-items:center; gap:6px;
}
header .user .badge {
    background:var(--accent); color:var(--bg);
    padding:5px 10px; font-size:9px;
    border:1px solid var(--accent); border-radius:var(--radius);
    line-height:1; font-family:var(--pixel);
}
header .nav-btn {
    background:none; border:1px solid var(--border); color:var(--muted);
    cursor:pointer; padding:5px 10px;
    font-family:var(--pixel); font-size:9px; border-radius:var(--radius);
    transition:all .15s;
}
header .nav-btn:hover {
    color:var(--accent); border-color:var(--accent);
    background: color-mix(in srgb, var(--accent) 8%, transparent);
}
header .nav-btn:focus-visible {
    outline:none; box-shadow: var(--focus-ring);
}
header .nav-btn.active {
    background:var(--accent); color:var(--bg); border-color:var(--accent);
    box-shadow: 0 0 12px -2px color-mix(in srgb, var(--accent) 50%, transparent);
}
header .nav-btn.danger:hover {
    color:var(--danger); border-color:var(--danger);
    background: color-mix(in srgb, var(--danger) 8%, transparent);
}

/* ─────────────────────────────────────────────────────────────────
   Layout shell
   ───────────────────────────────────────────────────────────────── */

main {
    flex:1; display:flex; flex-direction:column;
    padding:20px; gap:16px; max-width:920px; width:100%;
    margin:0 auto;
}
@media (max-width: 600px) { main { padding:12px; gap:12px; } }

/* ─────────────────────────────────────────────────────────────────
   Form primitives — used by every view (auth, compose, account, admin)
   ───────────────────────────────────────────────────────────────── */

.field { display:flex; flex-direction:column; gap:5px; width:100%; }
.field-label,
.field > label {
    font-family:var(--pixel); font-size:9px; color:var(--dim);
    text-transform:uppercase; letter-spacing:0.05em;
}
.input,
.field input[type="text"],
.field input[type="password"],
.field input[type="email"],
.field select,
.field textarea {
    background:var(--bg); border:1px solid var(--border);
    color:var(--bright); padding:9px 12px; font-size:13px;
    font-family:var(--mono); border-radius:var(--radius);
    transition:border-color .15s, box-shadow .15s, background .15s;
    width:100%;
}
.input:focus,
.field input:focus,
.field select:focus,
.field textarea:focus {
    border-color:var(--accent); outline:none;
    box-shadow: var(--focus-ring);
    background: color-mix(in srgb, var(--bg) 96%, var(--accent) 4%);
}
.input::placeholder,
.field input::placeholder,
.field textarea::placeholder { color:var(--dim); }
.field textarea { min-height:140px; resize:vertical; line-height:1.55; }
.field-hint {
    font-size:9px; color:var(--dim); line-height:1.4;
    font-family:var(--mono);
}

/* Inline label-on-checkbox style */
label.checkbox {
    font-family:var(--pixel); font-size:9px; color:var(--dim);
    text-transform:uppercase;
    display:flex; align-items:center; gap:6px; cursor:pointer;
}
label.checkbox input[type="checkbox"] { accent-color:var(--accent); cursor:pointer; }

/* ─────────────────────────────────────────────────────────────────
   Buttons
   ───────────────────────────────────────────────────────────────── */

.btn {
    padding:10px 18px; border:1px solid transparent; border-radius:var(--radius);
    font-family:var(--pixel); font-size:11px; cursor:pointer;
    transition:all .15s;
    display:inline-flex; align-items:center; gap:6px;
    justify-content:center;
}
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline:none; box-shadow: var(--focus-ring); }

.btn-primary { background:var(--accent); color:var(--bg); border-color:var(--accent); }
.btn-primary:hover {
    filter:brightness(1.12);
    transform: translateY(-1px);
    box-shadow: var(--shadow-button);
}
.btn-secondary {
    background:transparent; border-color:var(--border); color:var(--muted);
}
.btn-secondary:hover {
    color:var(--accent); border-color:var(--accent);
    background: color-mix(in srgb, var(--accent) 8%, transparent);
    transform: translateY(-1px);
}
.btn-danger {
    background:transparent; border-color:var(--danger); color:var(--danger);
}
.btn-danger:hover {
    background:var(--danger); color:var(--bg);
    transform: translateY(-1px);
}

/* ─────────────────────────────────────────────────────────────────
   Cards (compose, sections)
   ───────────────────────────────────────────────────────────────── */

.compose-card,
.section {
    background:var(--surface); border:1px solid var(--border);
    border-radius:var(--radius-lg); padding:18px;
    display:flex; flex-direction:column; gap:12px;
}
.compose-card h2,
.section h2 {
    font-family:var(--pixel); font-size:11px; color:var(--accent);
    text-transform:uppercase; letter-spacing:0.05em;
    display:flex; align-items:center; gap:8px;
}
.section h2 .count {
    background:var(--bg); padding:3px 7px; border-radius:var(--radius);
    font-size:9px; color:var(--muted);
    border:1px solid var(--border);
}

/* ─────────────────────────────────────────────────────────────────
   Compose
   ───────────────────────────────────────────────────────────────── */

#view-compose:not(.hidden) {
    display: flex; flex-direction: column; gap: 16px;
}
.compose-card .actions {
    display:flex; gap:8px; align-items:center;
}
.compose-card .actions .spacer { flex:1; }

/* Status text (used in compose, account, create-user) */
.status { font-family:var(--pixel); font-size:9px; color:var(--dim); }
.status.ok { color:var(--ok); }
.status.err { color:var(--danger); }

/* ─────────────────────────────────────────────────────────────────
   Auth forms (setup, login, change-password)
   ───────────────────────────────────────────────────────────────── */

.auth-form {
    display:flex; flex-direction:column; align-items:center;
    padding:40px 28px; gap:14px; max-width:400px; margin:48px auto 0;
    background:var(--surface); border:1px solid var(--border);
    border-radius:var(--radius-lg);
    box-shadow: var(--shadow-card);
}
.auth-form .auth-icon {
    font-size:36px; color:var(--accent); margin-bottom:4px;
    filter: drop-shadow(0 0 16px color-mix(in srgb, var(--accent) 40%, transparent));
}
.auth-form h2 {
    font-family:var(--pixel); font-size:14px; color:var(--accent);
    margin-bottom:4px; letter-spacing:0.05em;
}
.auth-form p {
    font-size:11px; color:var(--muted); text-align:center; line-height:1.55;
    margin: 0 0 4px;
}
.auth-form .field { width:100%; }
.auth-form .btn { width:100%; }
.auth-form .err {
    font-family:var(--pixel); font-size:9px; color:var(--danger);
    min-height:11px; text-align:center;
}

/* Flash-highlight: a brief accent pulse on a card after the user
   tapped the header inbox link and we just scrolled it into view. */
@keyframes flash-highlight {
    0%   { box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 60%, transparent); }
    50%  { box-shadow: 0 0 0 6px color-mix(in srgb, var(--accent) 30%, transparent),
                       0 0 24px 4px color-mix(in srgb, var(--accent) 50%, transparent); }
    100% { box-shadow: 0 0 0 0 transparent; }
}
.flash-highlight {
    animation: flash-highlight 1.6s ease-out;
}

/* ─────────────────────────────────────────────────────────────────
   Inbox + lists
   ───────────────────────────────────────────────────────────────── */

.inbox-item {
    display:flex; align-items:flex-start; gap:10px;
    padding:12px 10px; margin: 0 -10px;
    border-bottom:1px solid var(--border);
    transition: background .12s;
    border-radius:var(--radius);
}
.inbox-item:hover {
    background: color-mix(in srgb, var(--raised) 70%, transparent);
}
.inbox-item:last-child { border-bottom:none; }
.inbox-item .meta {
    font-family:var(--pixel); font-size:9px; color:var(--dim);
    white-space:nowrap; flex-shrink:0;
}
.inbox-item .content { flex:1; min-width:0; }
.inbox-item .content .title {
    font-size:12px; color:var(--bright); font-weight:bold;
    margin-bottom:2px; word-break:break-word;
}
.inbox-item .content .body {
    font-size:11px; color:var(--text); white-space:pre-wrap;
    word-break:break-word; max-height:120px; overflow:auto;
}
.inbox-item .from {
    font-family:var(--pixel); font-size:9px; color:var(--accent2);
    display:inline-flex; align-items:center; gap:6px;
    margin-bottom:4px;
}
.inbox-item .from .ph { font-size:11px; }
.badge-new {
    display:inline-block;
    background:var(--accent); color:var(--bg);
    padding:1px 6px; border-radius:var(--radius);
    font-family:var(--pixel); font-size:8px;
    text-transform:uppercase; letter-spacing:0.05em;
    margin-left:4px;
}
.badge-synced {
    display:inline-flex; align-items:center; gap:3px;
    color:var(--ok, #4ade80);
    padding:1px 6px; border-radius:var(--radius);
    border:1px solid color-mix(in srgb, var(--ok, #4ade80) 40%, var(--border));
    font-family:var(--pixel); font-size:8px;
    text-transform:uppercase; letter-spacing:0.05em;
    margin-left:4px;
}
.badge-synced .ph { font-size:9px; }
.inbox-item .del {
    background:none; border:none; color:var(--dim); cursor:pointer;
    padding:6px; font-size:14px; flex-shrink:0;
    border-radius:var(--radius);
    transition: color .15s, background .15s;
}
.inbox-item .del:hover {
    color:var(--danger);
    background: color-mix(in srgb, var(--danger) 10%, transparent);
}

/* User row (admin) */
.user-row {
    display:flex; align-items:center; gap:12px;
    padding:12px 10px; margin: 0 -10px;
    border-bottom:1px solid var(--border);
    border-radius:var(--radius);
    transition: background .12s;
}
.user-row:hover {
    background: color-mix(in srgb, var(--raised) 70%, transparent);
}
.user-row:last-child { border-bottom:none; }
.user-row .info { flex:1; }
.user-row .name {
    font-family:var(--pixel); font-size:11px; color:var(--bright);
    display:flex; align-items:center; gap:6px;
}
.user-row .meta { font-size:10px; color:var(--muted); margin-top:3px; }
.user-row .badge {
    background:var(--accent); color:var(--bg);
    padding:2px 7px; font-family:var(--pixel); font-size:8px;
    text-transform:uppercase; border-radius:var(--radius);
}
.user-row .actions { display:flex; gap:6px; }
.user-row .actions .btn { padding:5px 10px; font-size:9px; }

/* User-row icon */
.user-row .user-icon { font-size:20px; color:var(--accent); flex-shrink:0; }

/* ─────────────────────────────────────────────────────────────────
   Empty state — used by inbox, users list, etc.
   ───────────────────────────────────────────────────────────────── */

.empty-state {
    display:flex; flex-direction:column; align-items:center;
    justify-content:center; padding:36px 12px; gap:8px;
    color:var(--dim); text-align:center;
}
.empty-state .icon {
    font-size:38px; color:var(--dim); opacity:0.6;
}
.empty-state .label {
    font-family:var(--pixel); font-size:10px; color:var(--muted);
    text-transform:uppercase; letter-spacing:0.05em;
}
.empty-state .hint {
    font-size:11px; color:var(--dim); line-height:1.5;
    max-width:280px;
}
.empty {
    font-size:11px; color:var(--dim); font-style:italic; padding:8px 0;
}

/* ─────────────────────────────────────────────────────────────────
   Loading skeleton (used by inbox / users list while fetching)
   ───────────────────────────────────────────────────────────────── */

.skeleton-row {
    display:flex; align-items:center; gap:10px; padding:12px 10px;
    border-bottom:1px solid var(--border);
}
.skeleton-row:last-child { border-bottom:none; }
.skel {
    background: linear-gradient(90deg,
        color-mix(in srgb, var(--raised) 60%, transparent) 0%,
        color-mix(in srgb, var(--raised) 90%, transparent) 50%,
        color-mix(in srgb, var(--raised) 60%, transparent) 100%);
    background-size: 200% 100%;
    animation: skeleton 1.4s ease-in-out infinite;
    border-radius:2px; height:10px; width:60%;
}
.skel.short { width:30%; }
.skel.tall { height:14px; }
@keyframes skeleton {
    0%   { background-position:200% 0; }
    100% { background-position:-200% 0; }
}

/* ─────────────────────────────────────────────────────────────────
   Account view — secret display + input row
   ───────────────────────────────────────────────────────────────── */

.account-secret-row {
    display:flex; gap:8px; align-items:stretch;
}
.account-secret-row .input { flex:1; }
.account-secret-block { margin-bottom:14px; }
.account-divider {
    text-align:center; color:var(--dim);
    font-family:var(--pixel); font-size:9px;
    text-transform:uppercase; letter-spacing:0.05em;
    margin: 4px 0;
}
.account-secret-grid {
    display:grid; grid-template-columns:1fr; gap:14px;
}
.account-secret-actions {
    margin-top:24px; padding-top:14px; border-top:1px solid var(--border);
}

/* ─────────────────────────────────────────────────────────────────
   Create user form (admin)
   ───────────────────────────────────────────────────────────────── */

.create-user-form {
    display:flex; flex-direction:column; gap:12px;
    padding-top:14px; border-top:1px solid var(--border); margin-top:14px;
}
.create-user-form .actions {
    display:flex; gap:8px; align-items:center; margin-top:4px;
}

/* ─────────────────────────────────────────────────────────────────
   Toast — single + stack support
   ───────────────────────────────────────────────────────────────── */

#toast-stack {
    position:fixed; top:20px; right:20px;
    display:flex; flex-direction:column; gap:8px;
    z-index:200; pointer-events:none;
}
.toast {
    background:var(--surface); color:var(--bright);
    padding:10px 14px; border-radius:var(--radius-lg);
    font-family:var(--pixel); font-size:10px;
    display:flex; align-items:center; gap:8px;
    border:1px solid var(--border);
    box-shadow: var(--shadow-popover);
    pointer-events:auto;
    transform: translateX(120%);
    transition: transform .25s cubic-bezier(0.16, 1, 0.3, 1), opacity .25s;
    opacity:0;
    min-width:180px; max-width:320px;
}
.toast.show { transform: translateX(0); opacity:1; }
.toast.fade-out { opacity:0; transform: translateX(20%); }
.toast .toast-icon { font-size:14px; flex-shrink:0; }
.toast .toast-msg { line-height:1.3; word-break:break-word; }
.toast.info  { border-color: color-mix(in srgb, var(--accent) 60%, var(--border)); }
.toast.info  .toast-icon { color: var(--accent); }
.toast.ok    { border-color: color-mix(in srgb, var(--ok) 60%, var(--border)); }
.toast.ok    .toast-icon { color: var(--ok); }
.toast.err   { border-color: color-mix(in srgb, var(--danger) 60%, var(--border)); }
.toast.err   .toast-icon { color: var(--danger); }

/* ─────────────────────────────────────────────────────────────────
   Notices
   ───────────────────────────────────────────────────────────────── */

.notice {
    padding:10px 14px; border-radius:var(--radius); font-size:11px;
    margin-bottom:12px;
    display:flex; align-items:flex-start; gap:8px;
    line-height:1.5;
}
.notice .ph { font-size:14px; flex-shrink:0; margin-top:1px; }
.notice.info { background:rgba(56,189,248,0.08); border:1px solid color-mix(in srgb, var(--accent) 60%, var(--border)); color:var(--accent); }
.notice.warn { background:rgba(251,113,133,0.08); border:1px solid color-mix(in srgb, var(--danger) 60%, var(--border)); color:var(--danger); }

/* ─────────────────────────────────────────────────────────────────
   Phosphor icon defaults
   ───────────────────────────────────────────────────────────────── */

.ph { display:inline-block; vertical-align:-2px; }
header .nav-btn .ph { font-size:11px; vertical-align:-1px; margin-right:2px; }
.btn .ph { font-size:12px; vertical-align:-2px; }
.section h2 .ph, .compose-card h2 .ph { font-size:13px; vertical-align:-2px; }

/* ─────────────────────────────────────────────────────────────────
   Default nav layout (desktop)
   ───────────────────────────────────────────────────────────────── */

#nav-buttons:not(.hidden) {
    display:flex; gap:6px; align-items:center;
}
#nav-burger {
    display:none;
    padding:5px 10px; font-size:11px;
}

/* ─────────────────────────────────────────────────────────────────
   Mobile: collapse nav into a burger menu
   ───────────────────────────────────────────────────────────────── */

@media (max-width: 700px) {
    #nav-user { display:none !important; }
    #nav-burger { display:inline-flex !important; align-items:center; }
    #nav-buttons:not(.hidden) { display:none; }
    #nav-buttons.menu-open {
        display:flex !important;
        flex-direction:column;
        align-items:stretch;
        position:absolute;
        top:100%;
        right:12px;
        margin-top:6px;
        background:var(--surface);
        border:1px solid var(--border);
        border-radius:var(--radius-lg);
        box-shadow: var(--shadow-popover);
        padding:6px;
        gap:4px;
        min-width:180px;
        z-index:50;
    }
    #nav-buttons.menu-open .nav-btn {
        text-align:left;
        width:100%;
        padding: 8px 12px;
    }

    #view-admin .section {
        display:block !important;
        padding:14px 12px;
    }
    #view-admin .section h2 { margin-bottom:10px; }
    #view-admin .section .create-user-form { margin-top:14px; }
}

/* ─────────────────────────────────────────────────────────────────
   Desktop layout (≥ 901px)
   ───────────────────────────────────────────────────────────────── */

@media (min-width: 901px) {

    body {
        background:
            radial-gradient(ellipse at top left, rgba(56,189,248,0.05), transparent 50%),
            radial-gradient(ellipse at bottom right, rgba(129,140,248,0.05), transparent 50%),
            var(--bg);
    }

    main {
        max-width: 1200px;
        padding: 32px 32px 48px;
        gap: 24px;
    }

    header {
        padding: 14px 32px;
    }
    header h1 {
        font-size: 16px;
        letter-spacing: 0.08em;
    }
    header .brand-icon { font-size:20px; }
    header .nav-btn {
        padding: 7px 12px;
    }
    header .user {
        padding: 4px 10px;
        background: var(--bg);
        border: 1px solid var(--border);
        border-radius: var(--radius);
    }

    /* Compose view: 2-column grid */
    #view-compose:not(.hidden) {
        display: grid !important;
        grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr);
        gap: 24px;
        align-items: start;
    }

    /* Cards: depth via shadow + larger padding */
    .compose-card,
    .section {
        padding: 22px 24px;
        box-shadow: var(--shadow-card);
        border-color: color-mix(in srgb, var(--border) 70%, var(--accent) 12%);
    }
    .compose-card h2,
    .section h2 {
        font-size: 12px;
        margin-bottom: 6px;
        padding-bottom: 12px;
        border-bottom: 1px solid var(--border);
    }

    .compose-card .field textarea {
        min-height: 320px;
        font-size: 14px;
        padding: 12px 14px;
    }
    .compose-card .field input,
    .compose-card .field select {
        padding: 9px 12px;
        font-size: 14px;
    }
    .compose-card .field > label {
        font-size: 10px;
        margin-bottom: 6px;
    }
    .compose-card .actions {
        margin-top: 6px;
        padding-top: 12px;
        border-top: 1px solid var(--border);
    }
    .compose-card .actions .btn {
        padding: 11px 22px;
        font-size: 12px;
    }

    /* Inbox card sticks under the header */
    #inbox-section {
        position: sticky;
        top: 24px;
        transition: box-shadow .15s;
    }
    #inbox-section:hover {
        box-shadow:
            0 1px 2px rgba(0,0,0,0.3),
            0 12px 32px -8px rgba(0,0,0,0.5),
            0 0 0 1px color-mix(in srgb, var(--accent) 20%, transparent);
    }

    /* Admin: 2-column grid */
    #view-admin:not(.hidden) .section {
        display: grid;
        grid-template-columns: minmax(0, 1fr) 360px;
        grid-template-areas:
            "header header"
            "list   form";
        gap: 28px;
        align-items: start;
    }
    #view-admin .section h2 { grid-area: header; }
    #view-admin .section #users-list { grid-area: list; }
    #view-admin .section .create-user-form {
        grid-area: form;
        margin-top: 0;
        padding-top: 0;
        border-top: none;
        padding-left: 24px;
        border-left: 1px solid var(--border);
    }

    .user-row {
        padding: 14px 12px;
    }
    .user-row .name { font-size: 12px; }

    /* Auth-forms: full vertical centering, larger icon */
    .auth-form {
        margin-top: 88px;
        padding: 44px 36px;
        max-width: 440px;
    }
    .auth-form h2 { font-size: 16px; margin-bottom: 8px; }
    .auth-form .auth-icon { font-size: 44px; }
}