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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 20px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background .15s, opacity .15s;
}

.btn-primary {
    background: var(--color-primary);
    color: #fff;
}

.btn-primary:hover { background: var(--color-primary-dark); }
.btn-primary:disabled { opacity: .55; cursor: default; }

.btn-ghost {
    background: transparent;
    color: var(--color-primary);
    border: 1.5px solid var(--color-primary);
}

.btn-full { width: 100%; }

/* ── Inputs ──────────────────────────────────────────────────────────────── */

.field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.field label {
    font-size: .875rem;
    font-weight: 500;
    color: var(--color-text-muted);
}

.field input,
.field textarea {
    padding: 12px 14px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    font-size: 1rem;
    color: var(--color-text);
    transition: border-color .15s;
}

.field input:focus,
.field textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.field textarea {
    resize: vertical;
    min-height: 90px;
}

/* ── Error message ───────────────────────────────────────────────────────── */

.error-msg {
    color: var(--color-error);
    font-size: .875rem;
    padding: 8px 12px;
    background: #fef2f2;
    border-radius: var(--radius-sm);
}

/* ── Cards ───────────────────────────────────────────────────────────────── */

.card {
    display: block;
    background: var(--color-surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 16px;
    color: var(--color-text);
    text-decoration: none;
    transition: box-shadow .15s;
}

.card:hover { box-shadow: 0 4px 12px rgba(0,0,0,.1); }

.card-summary {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 4px;
}

.card-meta {
    font-size: .8125rem;
    color: var(--color-text-muted);
}

.card-stats {
    display: flex;
    gap: 12px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--color-border);
}

.stat {
    font-size: .8125rem;
    color: var(--color-text-muted);
}

/* ── Chips ───────────────────────────────────────────────────────────────── */

.chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.chip {
    padding: 7px 14px;
    border: 1.5px solid var(--color-border);
    border-radius: 999px;
    background: var(--color-surface);
    font-size: .875rem;
    cursor: pointer;
    transition: border-color .15s, background .15s, color .15s;
    color: var(--color-text);
}

.chip.active {
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: #fff;
}

/* ── Activity items ──────────────────────────────────────────────────────── */

.activity-item {
    padding: 12px 0;
    border-bottom: 1px solid var(--color-border);
    font-size: .9375rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.activity-item:last-child { border-bottom: none; }

.cost {
    font-size: .8125rem;
    color: var(--color-text-muted);
    margin-left: auto;
}

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

/* ── Bottom nav ──────────────────────────────────────────────────────────── */

.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-around;
    align-items: center;
    z-index: 100;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    text-decoration: none;
    color: var(--color-text-muted);
    font-size: .6875rem;
    font-weight: 500;
    flex: 1;
    padding: 8px 0;
    transition: color .15s;
}

.nav-item.active { color: var(--color-primary); }
.nav-item:hover { color: var(--color-primary); }
button.nav-item { background: none; border: none; cursor: pointer; }

.nav-icon {
    font-size: 1.25rem;
    line-height: 1;
}

/* ── Misc ────────────────────────────────────────────────────────────────── */

.empty {
    text-align: center;
    color: var(--color-text-muted);
    padding: 40px 0;
    font-size: .9375rem;
}

.section-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 16px;
}