/* Shared calculator UI: form cards, tooltips, results cards.
   Used by: cagr_calculator, retirement_goal_calculator, loan_calc, back_test_calculator */

/* ---------- Form card ---------- */
.calcCard {
    background: #1a1f2d;
    border: 1px solid rgba(255, 255, 255, .06);
    border-radius: 16px;
    padding: 36px 40px;
    max-width: 720px;
    margin: 28px auto;
    box-shadow: 0 8px 24px rgba(0, 0, 0, .35);
}
.calcCard--wide { max-width: 960px; }
.calcCard__title { color: #fff; font-size: 20px; font-weight: 700; margin: 0 0 6px; }
.calcCard__desc { color: #8495b4; font-size: 14px; line-height: 1.6; margin: 0 0 28px; }
.calcCard__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px 28px; }

/* ---------- Fields ---------- */
.calcField__labelRow { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 8px; }
.calcField__labelGroup { display: flex; align-items: center; gap: 6px; }
.calcField label { color: #8495b4; font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; }
.calcField__link { background: none; border: none; padding: 0; color: #f2a900; font-size: 12px; font-weight: 600; cursor: pointer; }
.calcField__link:hover { text-decoration: underline; }

.calcField__inputWrap { position: relative; }
.calcField__inputWrap input,
.calcField__inputWrap select {
    width: 100%;
    height: 48px;
    background: #232939;
    border: 1px solid rgba(255, 255, 255, .1);
    color: #fff;
    font-size: 16px;
    padding: 0 16px;
    border-radius: 10px;
    box-sizing: border-box;
    transition: border-color .15s;
}
.calcField__inputWrap input:hover,
.calcField__inputWrap select:hover { border-color: rgba(255, 255, 255, .2); }
.calcField__inputWrap input:focus,
.calcField__inputWrap select:focus { outline: none; border-color: #f2a900; box-shadow: 0 0 0 3px rgba(242, 169, 0, .15); }
.calcField__inputWrap input::-webkit-outer-spin-button,
.calcField__inputWrap input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.calcField__inputWrap input[type=number] { -moz-appearance: textfield; appearance: textfield; }
.calcField__inputWrap input[type=date] { color-scheme: dark; }
.calcField__inputWrap select {
    appearance: none;
    -webkit-appearance: none;
    padding-right: 40px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='7'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%238495b4' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    cursor: pointer;
}
.calcField__inputWrap--prefix input { padding-left: 34px; }
.calcField__inputWrap--suffix input { padding-right: 64px; }
.calcField__unit { position: absolute; top: 50%; transform: translateY(-50%); color: #5c6b8a; font-size: 15px; pointer-events: none; }
.calcField__unit--prefix { left: 16px; }
.calcField__unit--suffix { right: 16px; }

/* ---------- Info tooltips ---------- */
.calcInfo {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 15px;
    height: 15px;
    border-radius: 50%;
    border: 1px solid #5c6b8a;
    color: #5c6b8a;
    font-size: 10px;
    font-weight: 700;
    font-style: normal;
    cursor: help;
    flex-shrink: 0;
}
.calcInfo:hover { border-color: #f2a900; color: #f2a900; }
.calcInfo__tip {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background: #2b3347;
    color: #e2e8f0;
    font-size: 12.5px;
    font-weight: 400;
    line-height: 1.5;
    text-transform: none;
    letter-spacing: normal;
    padding: 10px 12px;
    border-radius: 8px;
    width: 220px;
    text-align: left;
    box-shadow: 0 4px 16px rgba(0, 0, 0, .4);
    opacity: 0;
    visibility: hidden;
    transition: opacity .15s;
    pointer-events: none;
    z-index: 10;
}
.calcInfo__tip::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: #2b3347;
}
.calcInfo:hover .calcInfo__tip,
.calcInfo:focus .calcInfo__tip { opacity: 1; visibility: visible; }

/* ---------- Footer / buttons / errors ---------- */
.calcCard__footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    margin-top: 28px;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, .08);
}
.calcCard__summaryLabel { display: block; color: #8495b4; font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; margin-bottom: 4px; }
.calcCard__summaryValue { color: #fff; font-size: 24px; font-weight: 700; }
.calcCard__btn {
    background: #f2a900;
    color: #000;
    border: none;
    height: 48px;
    padding: 0 36px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    white-space: nowrap;
    transition: background .15s, transform .1s, color .15s, border-color .15s;
}
.calcCard__btn:hover { background: #ffbe1a; }
.calcCard__btn:active { transform: scale(.98); }
.calcCard__btn--secondary {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, .2);
    color: #8495b4;
    font-weight: 600;
}
.calcCard__btn--secondary:hover { background: rgba(255, 255, 255, .05); color: #fff; }
.calcCard__btn--secondary.active { border-color: #f2a900; color: #f2a900; }
.calcCard__actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; padding-top: 24px; border-top: 1px solid rgba(255, 255, 255, .08); }
.calcCard__actions .calcCard__btn:last-child { margin-left: auto; }
.calcCard__error { color: #ff6b6b; font-size: 13px; margin-top: 16px; display: none; }

/* ---------- Advanced options (collapsible) ---------- */
.calcAdvanced { margin-top: 24px; border-top: 1px solid rgba(255, 255, 255, .08); padding-top: 20px; }
.calcAdvanced__toggle {
    background: none;
    border: none;
    color: #8495b4;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0;
}
.calcAdvanced__toggle:hover { color: #fff; }
.calcAdvanced__toggle .toggle-icon { font-size: 9px; transition: transform .15s; }
.calcAdvanced__toggle.expanded .toggle-icon { transform: rotate(180deg); }
.calcAdvanced__content { margin-top: 20px; }
.calcAdvanced__content > * + * { margin-top: 20px; }
.calcAdvanced__row { gap: 24px 28px; flex-wrap: wrap; }
.calcAdvanced__row > .calcField { flex: 1 1 240px; }
.calcCheck { display: flex; align-items: center; gap: 10px; color: #e2e8f0; font-size: 14px; cursor: pointer; }
.calcCheck input { width: 18px; height: 18px; accent-color: #f2a900; cursor: pointer; flex-shrink: 0; }

/* ---------- Indicator rows (backtest) ---------- */
.calcIndicators { display: flex; flex-direction: column; gap: 16px; margin-top: 24px; }
.calcIndicator {
    background: rgba(255, 255, 255, .02);
    border: 1px solid rgba(255, 255, 255, .08);
    border-radius: 12px;
    padding: 16px;
    display: grid;
    grid-template-columns: 1.3fr 1.1fr .7fr 1.1fr .7fr auto;
    gap: 12px;
    align-items: end;
}
.calcIndicator .remove-indicator {
    height: 48px;
    background: transparent;
    border: 1px solid rgba(220, 53, 69, .5);
    color: #f06a6a;
    border-radius: 10px;
    padding: 0 16px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: background .15s;
}
.calcIndicator .remove-indicator:hover { background: rgba(220, 53, 69, .15); }

/* ---------- Results ---------- */
.calcResults { max-width: 960px; margin: 28px auto; padding: 0 12px; }
.calcResults__headline {
    background: #1a1f2d;
    border: 1px solid rgba(242, 169, 0, .3);
    border-radius: 16px;
    padding: 28px 32px;
    text-align: center;
    margin-bottom: 20px;
}
.calcResults__headline--success { border-color: rgba(76, 175, 80, .4); }
.calcResults__headline--danger { border-color: rgba(220, 53, 69, .4); }
.calcResults__headlineLabel { display: block; color: #8495b4; font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; margin-bottom: 8px; }
.calcResults__headlineValue { display: block; color: #fff; font-size: 36px; font-weight: 700; line-height: 1.2; }
.calcResults__headlineSub { display: block; color: #8495b4; font-size: 15px; font-weight: 600; margin-top: 8px; }
.calcResults__headlineSub--green { color: #4caf50; }
.calcResults__headlineSub--red { color: #f06a6a; }
.calcResults__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.calcResultCard {
    background: #1a1f2d;
    border: 1px solid rgba(255, 255, 255, .06);
    border-radius: 16px;
    padding: 24px 28px;
}
.calcResultCard__title { color: #fff; font-size: 15px; font-weight: 700; margin: 0 0 4px; }
.calcResultCard__sub { color: #8495b4; font-size: 13px; margin: 0 0 18px; }
.calcResultCard__row { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; padding: 10px 0; border-bottom: 1px solid rgba(255, 255, 255, .05); }
.calcResultCard__row:last-child { border-bottom: none; padding-bottom: 0; }
.calcResultCard__label { color: #8495b4; font-size: 14px; }
.calcResultCard__value { color: #fff; font-size: 15px; font-weight: 600; text-align: right; }
.calcResultCard__value--green { color: #4caf50; }
.calcResultCard__value--red { color: #f06a6a; }
.calcResultCard__value--gold { color: #f2a900; }

/* ---------- Stat cards (backtest) ---------- */
.calcStatGrid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 20px;
    max-width: 960px;
    margin: 28px auto;
    padding: 0 12px;
}
.calcStatCard {
    background: #1a1f2d;
    border: 1px solid rgba(255, 255, 255, .06);
    border-radius: 16px;
    padding: 20px 24px;
}
.calcStatCard__label { display: block; color: #8495b4; font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; margin-bottom: 8px; }
.calcStatCard__value { display: block; color: #fff; font-size: 24px; font-weight: 700; line-height: 1.2; }
.calcStatCard__sub { display: block; color: #8495b4; font-size: 13px; font-weight: 600; margin-top: 6px; }

/* ---------- Mobile ---------- */
@media screen and (max-width: 1024px) {
    .calcIndicator { grid-template-columns: 1fr 1fr; }
}
@media screen and (max-width: 768px) {
    .calcCard { padding: 24px 20px; margin: 16px auto; border-radius: 12px; }
    .calcCard__grid { grid-template-columns: 1fr; gap: 18px; }
    .calcCard__footer { flex-direction: column; align-items: stretch; text-align: center; }
    .calcCard__footer .calcCard__btn { width: 100%; }
    .calcCard__actions { flex-direction: column; }
    .calcCard__actions .calcCard__btn { width: 100%; }
    .calcCard__actions .calcCard__btn:last-child { margin-left: 0; }
    .calcIndicator { grid-template-columns: 1fr; }
    .calcResults { margin: 16px auto; }
    .calcResults__headline { padding: 20px; }
    .calcResults__headlineValue { font-size: 28px; }
    .calcResultCard { padding: 20px; }
    .calcStatGrid { margin: 16px auto; }
}