* { box-sizing: border-box; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--tg-theme-bg-color, #ffffff);
    color: var(--tg-theme-text-color, #000000);
    margin: 0;
    padding: 14px 16px 100px;
    -webkit-tap-highlight-color: transparent;
}

/* ---------- header ---------- */
.header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
}

.menu-btn {
    background: var(--tg-theme-secondary-bg-color, #f2f2f7);
    border: none;
    color: var(--tg-theme-text-color, #000);
    font-size: 18px;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    cursor: pointer;
    flex-shrink: 0;
}
.menu-btn:active { opacity: 0.6; }

.header-icon { font-size: 22px; }

h1 { font-size: 20px; font-weight: 700; margin: 0; }

/* ---------- drawer ---------- */
.drawer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
    z-index: 20;
}
.drawer-overlay.open { opacity: 1; pointer-events: auto; }

.drawer {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 76%;
    max-width: 300px;
    background: var(--tg-theme-bg-color, #fff);
    box-shadow: 2px 0 16px rgba(0, 0, 0, 0.2);
    padding: 20px 14px;
    transform: translateX(-105%);
    transition: transform 0.25s ease;
    z-index: 21;
    overflow-y: auto;
}
.drawer.open { transform: translateX(0); }

.drawer-title {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--tg-theme-hint-color, #999);
    margin-bottom: 8px;
    padding: 0 4px;
}

.nav-item {
    padding: 13px 14px;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    margin-bottom: 2px;
    transition: background 0.15s ease;
}
.nav-item:active { background: rgba(0, 0, 0, 0.06); }
.nav-item.active {
    background: var(--tg-theme-button-color, #2481cc);
    color: var(--tg-theme-button-text-color, #fff);
}

.commands-list {
    font-size: 12.5px;
    color: var(--tg-theme-hint-color, #999);
    line-height: 1.8;
    padding: 0 4px;
}

/* ---------- screens ---------- */
.screen { display: none; }
.screen.active { display: block; animation: fadeIn 0.2s ease; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

.section-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    color: var(--tg-theme-hint-color, #999);
    margin: 0 4px 8px;
}

.text-btn {
    background: none;
    border: none;
    color: var(--tg-theme-button-color, #2481cc);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    text-transform: none;
    letter-spacing: 0;
}
.text-btn:active { opacity: 0.6; }

.card {
    background: var(--tg-theme-secondary-bg-color, #f2f2f7);
    border-radius: 14px;
    padding: 4px;
    margin-bottom: 20px;
    overflow: hidden;
}
.card.padded { padding: 16px; }

/* ---------- alert rows ---------- */
.alert-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: 10px;
    transition: background 0.15s ease;
}
.alert-row:active { background: rgba(0, 0, 0, 0.05); }
.alert-row + .alert-row { border-top: 1px solid rgba(0,0,0,0.06); }

.alert-icon {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    font-weight: 700;
    flex-shrink: 0;
    color: #fff;
    background: #2e9c5a;
}
.alert-icon.below { background: #e53935; }

.alert-body { flex: 1; min-width: 0; }
.alert-title { font-size: 15px; font-weight: 600; }
.alert-sub {
    font-size: 12.5px;
    color: var(--tg-theme-hint-color, #999);
    margin-top: 2px;
}

.delete-btn {
    background: none;
    border: none;
    color: #e53935;
    font-size: 18px;
    line-height: 1;
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}
.delete-btn:active { background: rgba(229, 57, 53, 0.15); }

.empty {
    color: var(--tg-theme-hint-color, #999);
    font-size: 14px;
    padding: 20px 12px;
    text-align: center;
    line-height: 1.5;
}

/* ---------- segmented ---------- */
.segmented {
    display: flex;
    background: var(--tg-theme-bg-color, #fff);
    border-radius: 10px;
    padding: 3px;
    gap: 3px;
    margin-bottom: 4px;
}
.segmented button {
    flex: 1;
    border: none;
    background: transparent;
    padding: 9px 4px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--tg-theme-text-color, #000);
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
}
.segmented button.active {
    background: var(--tg-theme-button-color, #2481cc);
    color: var(--tg-theme-button-text-color, #fff);
}

/* ---------- inputs ---------- */
label {
    display: block;
    font-size: 13px;
    color: var(--tg-theme-hint-color, #999);
    margin: 14px 0 6px;
}
label:first-of-type { margin-top: 6px; }

input {
    width: 100%;
    padding: 12px;
    border-radius: 10px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    font-size: 15px;
    background: var(--tg-theme-bg-color, #fff);
    color: var(--tg-theme-text-color, #000);
}
input:focus {
    outline: 2px solid var(--tg-theme-button-color, #2481cc);
    outline-offset: -1px;
}

/* ---------- quick-pick chips ---------- */
.chips {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 8px;
}
.chip {
    border: none;
    background: var(--tg-theme-bg-color, #fff);
    border: 1px solid rgba(0,0,0,0.1);
    color: var(--tg-theme-text-color, #000);
    font-size: 13px;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: 16px;
    cursor: pointer;
    transition: all 0.15s ease;
}
.chip:active { transform: scale(0.94); }
.chip.selected {
    background: var(--tg-theme-button-color, #2481cc);
    color: var(--tg-theme-button-text-color, #fff);
    border-color: transparent;
}

/* ---------- live current value ---------- */
.current-value {
    font-size: 14px;
    font-weight: 600;
    color: var(--tg-theme-button-color, #2481cc);
    margin-top: 12px;
    min-height: 18px;
}

/* ---------- buttons ---------- */
.primary-btn {
    width: 100%;
    padding: 13px;
    margin-top: 16px;
    border: none;
    border-radius: 10px;
    background: var(--tg-theme-button-color, #2481cc);
    color: var(--tg-theme-button-text-color, #fff);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
}
.primary-btn:active { opacity: 0.85; }

.big-result {
    font-size: 20px;
    font-weight: 700;
    text-align: center;
    margin-top: 18px;
    min-height: 24px;
}
.big-result.error { color: #e53935; font-size: 14px; font-weight: 500; }

/* ---------- plan badge ---------- */
.plan-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: 20px;
    background: var(--tg-theme-secondary-bg-color, #f2f2f7);
    color: var(--tg-theme-hint-color, #999);
    margin-bottom: 16px;
}
.plan-badge.premium {
    background: linear-gradient(135deg, #ffd54f, #ff9800);
    color: #fff;
}

/* ---------- premium screen ---------- */
.premium-card { text-align: center; }
.premium-crown { font-size: 44px; margin: 8px 0; }
.premium-headline { font-size: 17px; font-weight: 700; margin-bottom: 14px; }
.premium-perks {
    margin: 0 auto 8px;
    padding-left: 18px;
    max-width: 260px;
    text-align: left;
    font-size: 14px;
    line-height: 1.9;
    color: var(--tg-theme-text-color, #000);
}
.perk-free { color: var(--tg-theme-hint-color, #999); font-size: 12.5px; }
.premium-btn { background: linear-gradient(135deg, #ffd54f, #ff9800); }

/* ---------- skeleton loader ---------- */
.skeleton {
    height: 50px;
    border-radius: 10px;
    margin: 4px;
    background: linear-gradient(90deg, rgba(0,0,0,0.04) 25%, rgba(0,0,0,0.08) 37%, rgba(0,0,0,0.04) 63%);
    background-size: 400% 100%;
    animation: shimmer 1.4s ease infinite;
}
@keyframes shimmer {
    0% { background-position: 100% 50%; }
    100% { background-position: 0 50%; }
}