:root {
    --navy: #0a1a3c;
    --blue: #1e6fd9;
    --bg: #f3f5f9;
    --card-bg: #ffffff;
    --text: #1a2233;
    --text-muted: #6b7280;
    --border: #e5e8ef;
    --green: #16a34a;
    --red: #dc2626;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    padding-bottom: env(safe-area-inset-bottom);
}

/* ---- Sign-in screen ---- */
.signin-screen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--navy), var(--blue));
    padding: 24px;
}
.signin-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 36px 28px;
    max-width: 380px;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0,0,0,.3);
}
.signin-icon { font-size: 48px; margin-bottom: 8px; }
.signin-card h1 { margin: 0 0 12px; font-size: 24px; }
.signin-card p { color: var(--text-muted); font-size: 14px; line-height: 1.5; margin-bottom: 24px; }
.btn-google {
    display: inline-flex; align-items: center; gap: 10px;
    background: #fff; border: 1px solid var(--border); border-radius: 8px;
    padding: 12px 20px; font-size: 15px; font-weight: 600; cursor: pointer;
    box-shadow: 0 1px 3px rgba(0,0,0,.1);
}
.btn-google:hover { background: #f8f9fa; }

.construction-badge {
    display: inline-block; background: #fef3c7; color: #92400e;
    font-size: 12px; font-weight: 700; padding: 4px 10px; border-radius: 999px;
    margin-bottom: 14px;
}

.youtube-box {
    margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--border);
}
.youtube-box p { margin: 0 0 10px; font-size: 13px; }
.btn-youtube {
    display: inline-flex; align-items: center; gap: 8px;
    background: #ff0000; color: #fff; border-radius: 8px;
    padding: 10px 18px; font-size: 14px; font-weight: 600;
    text-decoration: none;
}
.btn-youtube:hover { background: #d90000; color: #fff; }
.youtube-hint { margin: 10px 0 0; font-size: 11.5px; color: var(--text-muted); }

/* ---- App shell ---- */
.app-screen { display: none; max-width: 720px; margin: 0 auto; padding: 0 0 40px; }

.app-header {
    background: linear-gradient(135deg, var(--navy), var(--blue));
    color: #fff;
    padding: 16px 20px;
    display: flex; align-items: center; justify-content: space-between;
    flex-wrap: wrap; gap: 8px;
    position: sticky; top: 0; z-index: 10;
}
.header-title { font-size: 20px; font-weight: 700; }
.header-account { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.account-email { font-size: 12px; opacity: .85; }
.btn-small {
    background: var(--card-bg); color: var(--text); border: 1px solid var(--border);
    border-radius: 6px; padding: 5px 10px; font-size: 12px; cursor: pointer;
}
.btn-small:hover { background: var(--bg); }
.app-header .btn-small {
    background: rgba(255,255,255,.15); color: #fff; border: 1px solid rgba(255,255,255,.3);
}
.app-header .btn-small:hover { background: rgba(255,255,255,.25); }

.debug-log {
    background: #111827; color: #d1fae5; font-family: monospace; font-size: 11px;
    max-height: 220px; overflow-y: auto; padding: 8px 10px; white-space: pre-wrap; word-break: break-word;
}
.debug-log .err { color: #fca5a5; }

.sync-status {
    text-align: center; font-size: 12.5px; padding: 6px 12px;
    color: var(--text-muted);
}
.sync-status.ok { color: var(--green); }
.sync-status.error { color: var(--red); }
.sync-status.offline { color: #b45309; }
.sync-status.syncing { color: var(--blue); }

/* ---- Ledger bar ---- */
.ledger-bar { display: flex; gap: 8px; align-items: center; padding: 4px 16px 10px; flex-wrap: wrap; }
.ledger-select {
    flex: 1; min-width: 160px; padding: 9px 10px; border-radius: 8px; border: 1px solid var(--border);
    font-size: 14px; font-weight: 600; background: #fff; color: var(--text);
}
.ledger-settings { padding: 0 16px 6px; }
.settings-panel {
    background: var(--card-bg); border-radius: 10px; padding: 12px 14px; margin-top: 6px;
    box-shadow: 0 1px 4px rgba(0,0,0,.06);
}
.small-muted { font-size: 12.5px; color: var(--text-muted); margin: 0 0 8px; }
.share-row { display: flex; gap: 8px; }
.share-row input {
    flex: 1; padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px; font-size: 13px;
}

.show-inactive-label { display: flex; align-items: center; gap: 4px; font-size: 12px; color: var(--text-muted); white-space: nowrap; }

/* ---- Διαχείριση λογαριασμών/κατηγοριών ---- */
.ledger-active-row { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 10px; }
.ledger-active-row strong.positive { color: var(--green); }
.ledger-active-row strong.negative { color: var(--text-muted); }
.btn-danger { color: var(--red); border-color: #fca5a5; }
.btn-danger:hover { background: #fef2f2; }
.manage-cat-row.inactive, .manage-chip.inactive { opacity: .55; }
.chip-toggle {
    background: none; border: none; cursor: pointer; font-size: 11px; color: var(--text-muted);
    width: 20px; height: 20px; border-radius: 50%; padding: 0;
}
.chip-toggle:hover { background: #fff; }
.manage-block { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--border); }
.manage-block h4 { margin: 0 0 8px; font-size: 13px; }
.manage-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 8px; }
.manage-chip {
    display: inline-flex; align-items: center; gap: 4px; background: var(--bg);
    border-radius: 999px; padding: 5px 6px 5px 10px; font-size: 12.5px;
}
.manage-chip.small { background: #fff; border: 1px solid var(--border); padding: 3px 4px 3px 8px; font-size: 12px; }
.chip-edit, .chip-del, .chip-add {
    background: none; border: none; cursor: pointer; font-size: 11px; color: var(--text-muted);
    width: 20px; height: 20px; border-radius: 50%; padding: 0;
}
.chip-edit:hover { color: var(--blue); background: #fff; }
.chip-del:hover { color: var(--red); background: #fff; }
.chip-add {
    width: auto; padding: 3px 8px; border-radius: 999px; border: 1px dashed var(--border); color: var(--text-muted);
}
.chip-add:hover { color: var(--blue); border-color: var(--blue); }
.manage-add-row { display: flex; gap: 8px; }
.manage-add-row input {
    flex: 1; padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px; font-size: 13px;
}
.manage-type-tabs { display: flex; gap: 6px; margin-bottom: 10px; }
.type-tab {
    flex: 1; padding: 6px; border-radius: 8px; border: 1px solid var(--border);
    background: #fff; font-size: 12.5px; font-weight: 600; cursor: pointer; color: var(--text-muted);
}
.type-tab.active { background: #eff6ff; border-color: var(--blue); color: var(--blue); }
.manage-cat-row { padding: 8px 0; border-bottom: 1px solid var(--border); }
.manage-cat-head { display: flex; align-items: center; gap: 4px; margin-bottom: 6px; }
.manage-cat-name { font-size: 13px; font-weight: 600; flex: 1; }
.manage-subs { display: flex; flex-wrap: wrap; gap: 6px; padding-left: 4px; }

/* ---- Settle card ---- */
.settle-card {
    background: var(--card-bg); border-radius: 12px; margin: 10px 16px; padding: 16px;
    box-shadow: 0 1px 4px rgba(0,0,0,.06);
}
.settle-card h2 { margin: 0 0 8px; font-size: 16px; }
.settle-table { width: 100%; border-collapse: collapse; margin-bottom: 10px; }
.settle-table td { padding: 6px 4px; border-bottom: 1px solid var(--border); font-size: 14px; }
.settle-table td.positive { color: var(--green); font-weight: 700; text-align: right; }
.settle-table td.negative { color: var(--red); font-weight: 700; text-align: right; }
.transfers { font-size: 13px; }
.transfers ul { margin: 6px 0 0; padding-left: 18px; }

/* ---- Summary ---- */
.summary-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; padding: 12px 16px; }
.summary-card { background: var(--card-bg); border-radius: 12px; padding: 14px 10px; text-align: center; box-shadow: 0 1px 4px rgba(0,0,0,.06); }
.summary-label { font-size: 11px; color: var(--text-muted); margin-bottom: 4px; }
.summary-value { font-size: 16px; font-weight: 700; }
.summary-value.income { color: var(--green); }
.summary-value.expense { color: var(--red); }
.balance.positive { color: var(--green); }
.balance.negative { color: var(--red); }

/* ---- Form ---- */
.form-card, .entries-card {
    background: var(--card-bg); border-radius: 12px; margin: 10px 16px; padding: 16px;
    box-shadow: 0 1px 4px rgba(0,0,0,.06);
}
.form-card h2 { margin: 0 0 12px; font-size: 16px; }
.form-card-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; flex-wrap: wrap; }
.form-card-head h2 { margin: 0 0 12px; }
.quick-entry-label {
    display: flex; align-items: center; gap: 4px; font-size: 12.5px; color: var(--text-muted);
    margin-bottom: 12px; white-space: nowrap; cursor: pointer;
}

.type-toggle { display: flex; gap: 8px; margin-bottom: 14px; }
.type-btn {
    flex: 1; padding: 10px; border-radius: 8px; border: 1px solid var(--border);
    background: #fff; font-weight: 600; cursor: pointer; color: var(--text-muted);
}
.type-btn.expense.active { background: #fef2f2; border-color: var(--red); color: var(--red); }
.type-btn.income.active { background: #f0fdf4; border-color: var(--green); color: var(--green); }
.type-btn.transfer.active { background: #eff6ff; border-color: var(--blue); color: var(--blue); }

.closed-notice {
    margin: 0 16px 10px; padding: 10px 14px; background: #fef3c7; color: #92400e;
    border-radius: 10px; font-size: 13px; font-weight: 600;
}

.account-balances { display: flex; flex-wrap: wrap; gap: 8px; padding: 0 16px 10px; }
.account-chip {
    display: flex; align-items: center; gap: 6px; background: var(--card-bg);
    border-radius: 999px; padding: 6px 12px; font-size: 12.5px; box-shadow: 0 1px 3px rgba(0,0,0,.06);
}
.account-chip strong.positive { color: var(--green); }
.account-chip strong.negative { color: var(--red); }

.entries-toolbar { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }
.entries-toolbar input[type="search"] { flex: 1; min-width: 140px; }
.entries-toolbar input, .entries-toolbar select {
    padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px; font-size: 13px;
}

.stats-panel { background: var(--bg); border-radius: 10px; padding: 12px; margin-bottom: 12px; }
.stats-panel h3 { margin: 0 0 10px; font-size: 14px; }
.stat-row { margin-bottom: 8px; }
.stat-label { font-size: 12.5px; margin-bottom: 3px; }
.stat-bar { background: var(--border); border-radius: 6px; height: 8px; overflow: hidden; }
.stat-bar-fill { background: var(--blue); height: 100%; }

.entry-key { font-family: monospace; font-size: 10.5px; color: var(--text-muted); margin-left: 4px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 10px; }
.form-row label { display: flex; flex-direction: column; font-size: 12px; color: var(--text-muted); gap: 4px; }
.form-row input {
    font-size: 15px; padding: 9px 10px; border: 1px solid var(--border); border-radius: 8px;
    color: var(--text); font-family: inherit;
}
.form-actions { display: flex; gap: 8px; margin-top: 6px; }
.btn-primary {
    background: var(--blue); color: #fff; border: none; border-radius: 8px;
    padding: 10px 20px; font-weight: 600; cursor: pointer;
}
.btn-outline {
    background: #fff; border: 1px solid var(--border); border-radius: 8px;
    padding: 10px 20px; cursor: pointer;
}

/* ---- Entries ---- */
.empty-state { text-align: center; color: var(--text-muted); padding: 24px 0; font-size: 14px; }
.month-header {
    font-size: 12px; font-weight: 700; color: var(--text-muted); text-transform: uppercase;
    padding: 14px 4px 6px; border-bottom: 1px solid var(--border);
}
.entry-row {
    display: flex; align-items: center; gap: 10px; padding: 10px 4px;
    border-bottom: 1px solid var(--border);
}
.entry-main { flex: 1; min-width: 0; }
.entry-desc { font-size: 14px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.entry-meta { font-size: 12px; color: var(--text-muted); }
.entry-amount { font-weight: 700; font-size: 14px; white-space: nowrap; }
.entry-row.expense .entry-amount { color: var(--red); }
.entry-row.income .entry-amount { color: var(--green); }
.entry-actions { display: flex; gap: 4px; }
.icon-btn {
    background: none; border: none; cursor: pointer; font-size: 14px; color: var(--text-muted);
    width: 28px; height: 28px; border-radius: 6px;
}
.icon-btn:hover { background: var(--bg); }

/* ---- Modal (νέο ταμείο) ---- */
.modal-overlay {
    position: fixed; inset: 0; background: rgba(10,26,60,.55);
    display: flex; align-items: center; justify-content: center; z-index: 100; padding: 16px;
}
.modal-card {
    background: var(--card-bg); border-radius: 14px; padding: 22px; max-width: 420px; width: 100%;
    box-shadow: 0 20px 60px rgba(0,0,0,.3); max-height: 90vh; overflow-y: auto;
}
.modal-card h2 { margin: 0 0 16px; font-size: 18px; }
.modal-field {
    display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--text-muted);
    margin-bottom: 12px;
}
.modal-field input, .modal-field select {
    font-size: 15px; padding: 9px 10px; border: 1px solid var(--border); border-radius: 8px;
    color: var(--text); font-family: inherit;
}
#lmTypeRow { margin-bottom: 12px; }

@media (max-width: 420px) {
    .form-row { grid-template-columns: 1fr; }
}