:root {
    --primary-bg: #0a0a0f;
    --secondary-bg: #141419;
    --card-bg: #1a1a24;
    --border-color: rgba(255, 255, 255, 0.1);
    --accent-primary: #6366f1;
    --accent-secondary: #8b5cf6;
    --accent-gradient: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --tt-topnav-h: 64px; /* seeded; tt-navbar.js publishes the exact value */
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--primary-bg);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.5;
}

.app { max-width: 900px; margin: 0 auto; padding: var(--spacing-md); }

.visually-hidden {
    position: absolute; width: 1px; height: 1px; margin: -1px;
    clip: rect(0 0 0 0); clip-path: inset(50%); overflow: hidden; white-space: nowrap;
}
.hidden { display: none !important; }
.muted { color: var(--text-muted); font-size: 0.85rem; }

/* ---------- toolbar (content-level, below the shared navbar) ---------- */
.toolbar {
    display: flex; align-items: flex-start; justify-content: space-between;
    gap: var(--spacing-md); padding: var(--spacing-lg) 0 var(--spacing-md);
    flex-wrap: wrap;
}
.toolbar-title h1 { font-size: 1.5rem; font-weight: 700; display: flex; align-items: center; gap: 0.6rem; }
.toolbar-title h1 i { color: var(--accent-primary); }
.toolbar-sub { color: var(--text-secondary); font-size: 0.9rem; margin-top: 0.25rem; max-width: 40rem; }
.toolbar-actions { display: flex; gap: var(--spacing-sm); }

.tb-btn {
    display: inline-flex; align-items: center; gap: 0.4rem;
    background: var(--card-bg); color: var(--text-primary);
    border: 1px solid var(--border-color); border-radius: var(--radius-md);
    padding: 0.55rem 0.9rem; min-height: 44px; font: inherit; font-size: 0.85rem;
    cursor: pointer; transition: border-color var(--transition-fast);
}
.tb-btn:hover { border-color: var(--accent-primary); }

/* ---------- cards ---------- */
.card {
    background: var(--card-bg); border: 1px solid var(--border-color);
    border-radius: var(--radius-lg); padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}
.card-title { font-size: 1.1rem; font-weight: 600; margin-bottom: var(--spacing-md); display: flex; align-items: center; gap: 0.5rem; }
.card-title i { color: var(--accent-primary); }

.loading { color: var(--text-secondary); display: flex; align-items: center; gap: 0.5rem; padding: var(--spacing-md) 0; }

/* ---------- buttons ---------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
    border: 1px solid transparent; border-radius: var(--radius-md);
    padding: 0.6rem 1.1rem; min-height: 44px; font: inherit; font-size: 0.9rem;
    font-weight: 500; cursor: pointer; transition: all var(--transition-fast);
    text-decoration: none;
}
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-primary { background: var(--accent-gradient); color: #fff; }
.btn-primary:not(:disabled):hover { filter: brightness(1.1); }
.btn-secondary { background: rgba(99, 102, 241, 0.15); color: #c7c9ff; border-color: rgba(99, 102, 241, 0.4); }
.btn-secondary:not(:disabled):hover { background: rgba(99, 102, 241, 0.25); }
.btn-ghost { background: transparent; color: var(--text-secondary); border-color: var(--border-color); }
.btn-ghost:not(:disabled):hover { color: var(--text-primary); border-color: var(--accent-primary); }
.btn-danger { background: rgba(239, 68, 68, 0.12); color: #fca5a5; border-color: rgba(239, 68, 68, 0.4); }
.btn-danger:not(:disabled):hover { background: rgba(239, 68, 68, 0.22); }
.btn-lg { padding: 0.75rem 1.5rem; font-size: 1rem; }

.icon-btn {
    background: transparent; border: 1px solid var(--border-color); color: var(--text-secondary);
    border-radius: var(--radius-sm); width: 34px; height: 34px; min-width: 34px;
    cursor: pointer; transition: all var(--transition-fast);
    display: inline-flex; align-items: center; justify-content: center;
}
.icon-btn:hover { color: var(--text-primary); border-color: var(--accent-primary); }

/* ---------- badges ---------- */
.badge {
    display: inline-flex; align-items: center; gap: 0.35rem;
    border-radius: 999px; padding: 0.25rem 0.75rem; font-size: 0.75rem; font-weight: 600;
    white-space: nowrap; align-self: flex-start;
}
.badge-pending { background: rgba(245, 158, 11, 0.15); color: #fcd34d; }
.badge-completed { background: rgba(34, 197, 94, 0.15); color: #86efac; }
.badge-voided, .badge-expired { background: rgba(239, 68, 68, 0.15); color: #fca5a5; }

/* ---------- signer view ---------- */
.doc-head { display: flex; justify-content: space-between; gap: var(--spacing-md); margin-bottom: var(--spacing-md); flex-wrap: wrap; }
.doc-title { font-size: 1.25rem; font-weight: 700; overflow-wrap: anywhere; }
.doc-message { color: var(--text-secondary); font-size: 0.9rem; margin-top: 0.35rem; overflow-wrap: anywhere; }

.file-chip {
    display: flex; align-items: center; gap: 0.75rem;
    background: var(--secondary-bg); border: 1px solid var(--border-color);
    border-radius: var(--radius-md); padding: 0.75rem var(--spacing-md);
    flex-wrap: wrap;
}
.file-chip > i { font-size: 1.4rem; color: var(--accent-primary); }
.file-chip-meta { display: flex; flex-direction: column; min-width: 0; flex: 1; }
.file-name { font-weight: 600; font-size: 0.95rem; overflow-wrap: anywhere; }
.file-info { color: var(--text-muted); font-size: 0.78rem; }

.hash-line {
    color: var(--text-muted); font-size: 0.75rem; margin: 0.6rem 0 var(--spacing-md);
    display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap;
}
.hash-line code {
    background: var(--secondary-bg); border-radius: var(--radius-sm);
    padding: 0.15rem 0.45rem; font-size: 0.72rem; overflow-wrap: anywhere;
}

.preview-wrap { margin-bottom: var(--spacing-md); border: 1px solid var(--border-color); border-radius: var(--radius-md); overflow: hidden; background: #202028; }
.preview-wrap iframe { width: 100%; height: 420px; border: 0; display: block; background: #fff; }
.preview-wrap img { max-width: 100%; display: block; margin: 0 auto; }
.preview-wrap .pdf-open-btn { margin: 1.25rem auto; display: flex; }

.parties { display: grid; grid-template-columns: 1fr; gap: var(--spacing-sm); margin-bottom: var(--spacing-md); }
.party-row {
    display: flex; align-items: center; gap: 0.75rem;
    background: var(--secondary-bg); border: 1px solid var(--border-color);
    border-radius: var(--radius-md); padding: 0.6rem var(--spacing-md);
    flex-wrap: wrap;
}
.party-row .party-name { font-weight: 600; font-size: 0.92rem; overflow-wrap: anywhere; }
.party-row .party-sub { color: var(--text-muted); font-size: 0.78rem; }
.party-row .badge { margin-left: auto; }
.party-you { border-color: rgba(99, 102, 241, 0.5); }

/* signature capture */
.sign-box h3 { font-size: 1rem; margin-bottom: var(--spacing-sm); }
.sig-tabs { display: flex; gap: 0.4rem; margin-bottom: var(--spacing-sm); }
.sig-tab {
    background: var(--secondary-bg); border: 1px solid var(--border-color); color: var(--text-secondary);
    border-radius: var(--radius-md); padding: 0.45rem 1rem; min-height: 40px; font: inherit; font-size: 0.85rem;
    cursor: pointer; transition: all var(--transition-fast);
}
.sig-tab.active { background: rgba(99, 102, 241, 0.18); border-color: var(--accent-primary); color: var(--text-primary); }
.type-row { margin-bottom: var(--spacing-sm); }
.type-row input {
    width: 100%; background: var(--secondary-bg); border: 1px solid var(--border-color);
    color: var(--text-primary); border-radius: var(--radius-md); padding: 0.65rem 0.9rem; font: inherit;
}
.type-row input:focus { outline: none; border-color: var(--accent-primary); }

.sig-pad-wrap {
    position: relative; background: #ffffff; border-radius: var(--radius-md);
    border: 1px solid var(--border-color); overflow: hidden;
    margin-bottom: var(--spacing-sm);
}
#sigPad { display: block; width: 100%; height: 170px; touch-action: none; cursor: crosshair; }
.sig-baseline {
    position: absolute; left: 8%; right: 8%; bottom: 34px;
    border-bottom: 1px dashed rgba(30, 58, 138, 0.35); pointer-events: none;
}
.sig-clear { position: absolute; top: 8px; right: 8px; background: rgba(255,255,255,0.85); color: #334; border-color: rgba(0,0,0,0.15); }
.sig-clear:hover { color: #000; }

.consent {
    display: flex; gap: 0.6rem; align-items: flex-start;
    background: rgba(99, 102, 241, 0.08); border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--radius-md); padding: 0.75rem var(--spacing-md);
    font-size: 0.82rem; color: var(--text-secondary); cursor: pointer;
    margin-bottom: var(--spacing-md);
}
.consent input { margin-top: 0.2rem; width: 18px; height: 18px; min-width: 18px; accent-color: var(--accent-primary); cursor: pointer; }

.sign-error { color: #fca5a5; font-size: 0.85rem; margin-top: var(--spacing-sm); }

.notice {
    display: flex; gap: 0.75rem; align-items: flex-start;
    background: var(--secondary-bg); border: 1px solid var(--border-color);
    border-radius: var(--radius-md); padding: var(--spacing-md);
    color: var(--text-secondary); font-size: 0.9rem;
}
.notice i { color: var(--accent-primary); margin-top: 0.15rem; }
.notice-warn i { color: var(--warning); }

.done-box { border: 1px solid rgba(34, 197, 94, 0.35); border-radius: var(--radius-md); padding: var(--spacing-md); background: rgba(34, 197, 94, 0.07); }
.done-head { display: flex; gap: 0.6rem; align-items: flex-start; margin-bottom: var(--spacing-md); }
.done-head i { color: var(--success); font-size: 1.3rem; }
.done-actions { display: flex; flex-direction: column; gap: var(--spacing-sm); }

/* ---------- creator view ---------- */
.gate { text-align: center; padding: var(--spacing-xl); }
.gate-icon { font-size: 2.5rem; color: var(--accent-primary); margin-bottom: var(--spacing-md); }
.gate h2 { margin-bottom: var(--spacing-sm); }
.gate p { color: var(--text-secondary); max-width: 34rem; margin: 0 auto var(--spacing-lg); font-size: 0.92rem; }

.form-grid { display: grid; grid-template-columns: 1fr; gap: var(--spacing-md); margin-bottom: var(--spacing-md); }
.field { display: flex; flex-direction: column; gap: 0.3rem; font-size: 0.82rem; color: var(--text-secondary); }
.field input {
    background: var(--secondary-bg); border: 1px solid var(--border-color); color: var(--text-primary);
    border-radius: var(--radius-md); padding: 0.65rem 0.9rem; font: inherit; min-height: 44px;
}
.field input:focus { outline: none; border-color: var(--accent-primary); }

.dropzone {
    border: 2px dashed rgba(99, 102, 241, 0.45); border-radius: var(--radius-md);
    padding: var(--spacing-lg); text-align: center; color: var(--text-secondary);
    cursor: pointer; transition: all var(--transition-fast); margin-bottom: var(--spacing-md);
    font-size: 0.88rem;
}
.dropzone:hover, .dropzone.dragover { border-color: var(--accent-primary); background: rgba(99, 102, 241, 0.06); }
.dropzone > i { font-size: 1.8rem; color: var(--accent-primary); margin-bottom: 0.4rem; }
.file-picked { margin-top: 0.6rem; color: #86efac; font-weight: 600; font-size: 0.88rem; overflow-wrap: anywhere; }

.party-grid { display: grid; grid-template-columns: 1fr; gap: var(--spacing-md); margin-bottom: var(--spacing-md); }
.party-fs { border: 1px solid var(--border-color); border-radius: var(--radius-md); padding: var(--spacing-md); display: grid; gap: var(--spacing-sm); }
.party-fs legend { padding: 0 0.5rem; font-size: 0.85rem; color: var(--text-secondary); }
.party-fs legend i { color: var(--accent-primary); margin-right: 0.25rem; }

.env-list { display: flex; flex-direction: column; gap: var(--spacing-sm); }
.env-item {
    display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap;
    background: var(--secondary-bg); border: 1px solid var(--border-color);
    border-radius: var(--radius-md); padding: 0.75rem var(--spacing-md);
    cursor: pointer; transition: border-color var(--transition-fast);
    width: 100%; text-align: left; color: inherit; font: inherit;
}
.env-item:hover { border-color: var(--accent-primary); }
.env-item .env-title { font-weight: 600; font-size: 0.92rem; overflow-wrap: anywhere; }
.env-item .env-sub { color: var(--text-muted); font-size: 0.78rem; width: 100%; }
.env-item .badge { margin-left: auto; }

/* ---------- detail modal ---------- */
.modal-overlay {
    position: fixed; inset: 0; background: rgba(0, 0, 0, 0.65);
    display: flex; align-items: center; justify-content: center;
    padding: var(--spacing-md);
    /* above the shared navbar/modal layer (navbar v2 z-token contract) */
    z-index: calc(var(--tt-z-modal, 1000) + 10);
}
.modal {
    background: var(--card-bg); border: 1px solid var(--border-color);
    border-radius: var(--radius-lg); width: 100%; max-width: 640px;
    max-height: min(86vh, 100dvh - 2rem); display: flex; flex-direction: column;
}
.modal-head {
    display: flex; align-items: center; justify-content: space-between; gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg); border-bottom: 1px solid var(--border-color);
}
.modal-head h3 { font-size: 1.05rem; overflow-wrap: anywhere; }
.modal-body { padding: var(--spacing-lg); overflow-y: auto; }

.link-row {
    display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap;
    background: var(--secondary-bg); border: 1px solid var(--border-color);
    border-radius: var(--radius-md); padding: 0.6rem var(--spacing-md); margin-top: 0.4rem;
}
.link-row code { font-size: 0.72rem; overflow-wrap: anywhere; flex: 1; min-width: 12rem; color: var(--text-secondary); }
.detail-section { margin-bottom: var(--spacing-lg); }
.detail-section h4 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-muted); margin-bottom: var(--spacing-sm); }
.event-line { font-size: 0.8rem; color: var(--text-secondary); padding: 0.25rem 0; border-bottom: 1px dashed var(--border-color); display: flex; gap: 0.5rem; flex-wrap: wrap; }
.event-line time { color: var(--text-muted); }
.detail-actions { display: flex; gap: var(--spacing-sm); flex-wrap: wrap; }

/* ---------- eIDAS explainer ---------- */
.eidas summary {
    cursor: pointer; font-weight: 600; font-size: 0.95rem;
    display: flex; align-items: center; gap: 0.5rem; min-height: 44px; align-items: center;
}
.eidas summary i { color: var(--accent-primary); }
.eidas-body { margin-top: var(--spacing-md); color: var(--text-secondary); font-size: 0.87rem; }
.eidas-body h4 { color: var(--text-primary); margin: var(--spacing-md) 0 0.3rem; font-size: 0.9rem; }
.eidas-body p { margin-bottom: 0.5rem; }
.eidas-body ul { margin: 0 0 0.5rem 1.2rem; }
.eidas-body li { margin-bottom: 0.25rem; }

/* ---------- toasts ---------- */
#toastHost { position: fixed; bottom: 1rem; right: 1rem; display: flex; flex-direction: column; gap: 0.5rem; z-index: calc(var(--tt-z-toast, 1100) + 10); }
.toast {
    background: var(--card-bg); border: 1px solid var(--accent-primary);
    border-radius: var(--radius-md); padding: 0.7rem 1rem; font-size: 0.85rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5); max-width: 320px;
}
.toast.err { border-color: var(--danger); }

/* dark-theme select options (recurring bug guard — no selects today, but keep the rule) */
select option { background-color: #1a1a24; color: #ffffff; }

/* ---------- responsive ---------- */
@media (min-width: 640px) {
    .party-grid { grid-template-columns: 1fr 1fr; }
    .done-actions { flex-direction: row; flex-wrap: wrap; }
    .parties { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 768px) {
    .app { padding: var(--spacing-lg); }
    .preview-wrap iframe { height: 520px; }
}
@media (max-width: 768px) {
    .toolbar-title h1 { font-size: 1.25rem; }
}