/* =====================================================
   RESET / BASE
   ===================================================== */
*,
*::before,
*::after { box-sizing: border-box; }

:root {
    --orange: #f97316;
    --orange-dark: #ea580c;
    --orange-soft: #fff7ed;
    --black: #0a0a0a;
    --gray-900: #171717;
    --gray-700: #404040;
    --gray-500: #737373;
    --gray-400: #a3a3a3;
    --gray-300: #d4d4d4;
    --gray-200: #e5e5e5;
    --gray-100: #f5f5f5;
    --gray-50: #fafafa;
    --white: #ffffff;
    --radius: 14px;
    --radius-lg: 20px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,.05);
    --shadow-md: 0 4px 14px rgba(0,0,0,.06);
    --shadow-lg: 0 20px 50px rgba(0,0,0,.12);
}

html, body {
    margin: 0;
    padding: 0;
    background: var(--white);
    color: var(--gray-900);
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    -webkit-font-smoothing: antialiased;
    scroll-behavior: smooth;
}

button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select { font-family: inherit; }

/* =====================================================
   NAVBAR
   ===================================================== */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--white);
    border-bottom: 1px solid var(--gray-100);
}

.navbar__inner {
    position: relative;
    max-width: 1180px;
    margin: 0 auto;
    padding: 18px 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 72px;
}

.navbar__logo {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
}

.navbar__logo img {
    height: 34px;
    width: auto;
    display: block;
    object-fit: contain;
}

.navbar__cta {
    position: absolute;
    right: 24px;
    top: 50%;
    transform: translateY(-50%);

    padding: 10px 20px;
    font-size: 13.5px;
    font-weight: 600;
    letter-spacing: -.005em;
    color: var(--white);
    background: var(--black);
    border-radius: 999px;
    text-decoration: none;
    white-space: nowrap;
    transition: transform .15s ease, background .2s ease, box-shadow .2s ease;
    box-shadow: 0 2px 6px rgba(0,0,0,.08);
}

.navbar__cta:hover {
    background: var(--gray-900);
    transform: translateY(-50%) scale(1.03);
    box-shadow: 0 6px 16px rgba(0,0,0,.15);
}

.navbar__cta:active {
    transform: translateY(-50%) scale(.98);
}

/* Responsivo da navbar */
@media (max-width: 640px) {
    .navbar__inner {
        padding: 14px 16px;
        min-height: 64px;
        justify-content: flex-start;
    }
    .navbar__logo img {
        height: 28px;
    }
    .navbar__cta {
        right: 16px;
        padding: 9px 14px;
        font-size: 12px;
    }
}

@media (max-width: 400px) {
    .navbar__cta {
        font-size: 11px;
        padding: 8px 12px;
    }
    .navbar__logo img {
        height: 24px;
    }
}

/* =====================================================
   HERO
   ===================================================== */
.hero {
    padding: 64px 24px 32px;
    text-align: center;
}
.hero__inner { max-width: 820px; margin: 0 auto; }

.hero__eyebrow {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--orange);
    margin: 0 0 20px;
}

.hero__title {
    font-size: clamp(34px, 5.2vw, 62px);
    font-weight: 500;              /* era 200 — agora mais encorpado */
    line-height: 1.08;
    letter-spacing: -.035em;
    color: var(--black);
    margin: 0 0 20px;
}

.hero__subtitle {
    font-size: clamp(15px, 1.4vw, 17px);
    font-weight: 300;
    line-height: 1.6;
    color: var(--gray-500);
    margin: 0;
}

/* =====================================================
   TABS
   ===================================================== */
.tabs-section {
    display: flex;
    justify-content: center;
    padding: 24px 16px 40px;
}

.tabs {
    display: flex;
    gap: 6px;
    padding: 6px;
    background: var(--gray-100);
    border-radius: 999px;
    overflow-x: auto;
    scrollbar-width: none;
    max-width: 100%;
}
.tabs::-webkit-scrollbar { display: none; }

.tab {
    padding: 11px 22px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-500);
    white-space: nowrap;
    transition: all .22s ease;
}
.tab:hover { color: var(--gray-900); }

.tab.is-active {
    background: var(--black);
    color: var(--white);
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

/* =====================================================
   CALCULADORA
   ===================================================== */
.calc-wrapper {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 24px 80px;
}

.calc-panel { display: none; animation: fadeUp .35s ease; }
.calc-panel.is-active { display: block; }

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 28px;
}
.field--full { grid-column: 1 / -1; }

.field { display: flex; flex-direction: column; gap: 8px; }

.field label {
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-700);
    letter-spacing: -.005em;
}

.input-group {
    position: relative;
    display: flex;
    align-items: center;
}

.input-group input,
.field select {
    width: 100%;
    padding: 14px 16px;
    font-size: 15px;
    font-weight: 500;
    color: var(--gray-900);
    background: var(--white);
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius);
    outline: none;
    transition: border-color .2s, box-shadow .2s;
}

.input-group input { padding-right: 54px; }
.input-group input:focus,
.field select:focus {
    border-color: var(--black);
    box-shadow: 0 0 0 4px rgba(10,10,10,.06);
}

.input-suffix {
    position: absolute;
    right: 16px;
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-400);
    pointer-events: none;
    text-transform: uppercase;
    letter-spacing: .04em;
}

.field select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23737373' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 44px;
    cursor: pointer;
}

.field-hint {
    font-size: 12px;
    color: var(--gray-400);
    margin: 0;
    font-weight: 400;
}

/* BOTÕES */
.btn-primary {
    width: 100%;
    padding: 16px 24px;
    font-size: 15px;
    font-weight: 600;
    color: var(--white);
    background: var(--black);
    border-radius: var(--radius);
    transition: transform .15s, background .2s;
}
.btn-primary:hover { background: var(--gray-900); transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); }
.btn-primary--full { margin-top: 8px; }

.btn-outline {
    padding: 14px 22px;
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-700);
    background: var(--white);
    border: 1.5px solid var(--gray-300);
    border-radius: var(--radius);
    transition: all .2s;
}
.btn-outline:hover { border-color: var(--black); color: var(--black); }

.btn-pulse {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 16px 28px;
    font-size: 15px;
    font-weight: 600;
    color: var(--white);
    background: var(--orange);
    border-radius: var(--radius);
    box-shadow: 0 8px 24px rgba(249, 115, 22, .35);
    animation: pulse 2s ease-in-out infinite;
    transition: background .2s;
}
.btn-pulse:hover { background: var(--orange-dark); animation: none; }

.btn-pulse__dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--white);
    box-shadow: 0 0 0 0 rgba(255,255,255,.6);
    animation: dotPulse 1.6s ease-out infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 8px 24px rgba(249, 115, 22, .35); }
    50%      { box-shadow: 0 8px 38px rgba(249, 115, 22, .55); }
}
@keyframes dotPulse {
    0%   { box-shadow: 0 0 0 0 rgba(255,255,255,.7); }
    100% { box-shadow: 0 0 0 10px rgba(255,255,255,0); }
}

/* =====================================================
   SPINNER OVERLAY
   ===================================================== */
.spinner-overlay {
    position: fixed;
    inset: 0;
    background: var(--white);
    z-index: 900;
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 32px;
    opacity: 0;
    transition: opacity .3s ease;
}
.spinner-overlay.is-visible {
    display: flex;
    opacity: 1;
}
.spinner-overlay.is-hidden { opacity: 0; }

.spinner {
    position: relative;
    width: 84px;
    height: 84px;
}

.spinner__ring {
    position: absolute;
    inset: 0;
    border: 2px solid transparent;
    border-top-color: var(--orange);
    border-radius: 50%;
    animation: spin 1.1s linear infinite;
}
.spinner__ring--2 {
    inset: 14px;
    border-top-color: var(--black);
    animation-duration: 1.6s;
    animation-direction: reverse;
}
.spinner__dot {
    position: absolute;
    inset: 34px;
    background: var(--black);
    border-radius: 50%;
    animation: dotBreath 1.4s ease-in-out infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes dotBreath {
    0%, 100% { transform: scale(.85); opacity: .9; }
    50%      { transform: scale(1); opacity: 1; }
}

.spinner__text {
    font-size: 22px;
    font-weight: 300;
    letter-spacing: -.02em;
    color: var(--black);
    margin: 0;
    text-align: center;
}
.spinner__subtext {
    font-size: 13px;
    color: var(--gray-400);
    margin: -18px 0 0;
    font-weight: 400;
}

/* =====================================================
   RESULTADO
   ===================================================== */
.result-section {
    padding: 40px 24px 96px;
    animation: fadeUp .5s ease;
}
.result-container { max-width: 880px; margin: 0 auto; }

.result-header { text-align: center; margin-bottom: 40px; }
.result-eyebrow {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--orange);
    margin: 0 0 12px;
}
.result-title {
    font-size: clamp(26px, 3.6vw, 40px);
    font-weight: 200;
    letter-spacing: -.025em;
    color: var(--black);
    margin: 0 0 10px;
}
.result-sub {
    font-size: 15px;
    font-weight: 300;
    color: var(--gray-500);
    margin: 0;
}

/* Narrativa do resultado */
.result-narrativa {
    max-width: 760px;
    margin: 0 auto 36px;
    padding: 24px 28px;
    background: var(--gray-50);
    border-left: 4px solid var(--orange);
    border-radius: 12px;
    font-size: 16.5px;
    font-weight: 300;
    line-height: 1.7;
    color: var(--gray-700);
    letter-spacing: -.005em;
    text-align: left;
    animation: fadeUp .5s ease .1s both;
}

.result-narrativa strong {
    font-weight: 600;
    color: var(--black);
}

.result-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 40px;
}

.result-card {
    padding: 24px 22px;
    background: var(--white);
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius-lg);
    transition: border-color .2s, transform .2s;
}
.result-card:hover { border-color: var(--gray-300); transform: translateY(-2px); }

.result-card__label {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .1em;
    color: var(--gray-400);
    margin: 0 0 10px;
}
.result-card__value {
    font-size: 30px;
    font-weight: 300;
    letter-spacing: -.02em;
    color: var(--black);
    margin: 0;
    line-height: 1.15;
}
.result-card__value--accent { color: var(--orange); font-weight: 400; }
.result-card__unit {
    font-size: 14px;
    font-weight: 400;
    color: var(--gray-400);
    margin-left: 4px;
}

.result-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

/* =====================================================
   MODAL
   ===================================================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(10,10,10,.5);
    backdrop-filter: blur(6px);
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.modal-overlay.is-visible { display: flex; animation: fadeIn .2s ease; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal {
    position: relative;
    width: 100%;
    max-width: 460px;
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 36px 32px 28px;
    box-shadow: var(--shadow-lg);
    animation: modalIn .3s cubic-bezier(.2,.9,.3,1.2);
}
@keyframes modalIn {
    from { opacity: 0; transform: translateY(16px) scale(.97); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

.modal__close {
    position: absolute;
    top: 18px;
    right: 18px;
    color: var(--gray-400);
    padding: 6px;
    border-radius: 8px;
    transition: all .2s;
}
.modal__close:hover { color: var(--black); background: var(--gray-100); }

.modal__eyebrow {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--orange);
    margin: 0 0 10px;
}
.modal__title {
    font-size: 22px;
    font-weight: 300;
    letter-spacing: -.02em;
    color: var(--black);
    margin: 0 0 8px;
}
.modal__subtitle {
    font-size: 13px;
    color: var(--gray-500);
    line-height: 1.5;
    margin: 0 0 24px;
}

.modal__form { display: flex; flex-direction: column; gap: 16px; }

.modal__privacy {
    text-align: center;
    font-size: 11px;
    color: var(--gray-400);
    margin: 6px 0 0;
}

/* =====================================================
   FOOTER
   ===================================================== */
.footer {
    margin-top: 80px;
    background: var(--white);
    border-top: 1px solid var(--gray-100);
}

.footer__inner {
    max-width: 1180px;
    margin: 0 auto;
    padding: 64px 24px 48px;
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 64px;
}

/* --- Marca --- */
.footer__brand-name {
    font-size: 20px;
    font-weight: 600;
    letter-spacing: -.02em;
    color: var(--black);
    margin: 0 0 14px;
}

.footer__brand-desc {
    font-size: 14px;
    font-weight: 300;
    line-height: 1.65;
    color: var(--gray-500);
    margin: 0;
    max-width: 420px;
}

/* --- Colunas de links --- */
.footer__cols {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.footer__col {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer__col-title {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--gray-400);
    margin: 0 0 4px;
}

.footer__link {
    font-size: 14px;
    font-weight: 400;
    color: var(--gray-700);
    text-decoration: none;
    transition: color .18s ease, transform .18s ease;
    width: fit-content;
}

.footer__link:hover {
    color: var(--orange);
    transform: translateX(2px);
}

/* --- Rodapé inferior --- */
.footer__bottom {
    border-top: 1px solid var(--gray-100);
}

.footer__bottom-inner {
    max-width: 1180px;
    margin: 0 auto;
    padding: 20px 24px;
}

.footer__copy {
    font-size: 12.5px;
    font-weight: 400;
    color: var(--gray-400);
    margin: 0;
}

/* =====================================================
   RESPONSIVO
   ===================================================== */
@media (max-width: 640px) {
    .hero { padding: 56px 20px 20px; }
    .tabs-section { padding: 20px 12px 32px; }
    .tab { padding: 10px 16px; font-size: 13px; }
    .form-grid { grid-template-columns: 1fr; gap: 16px; }
    .calc-wrapper { padding: 0 20px 64px; }
    .result-actions { flex-direction: column; }
    .result-actions > * { width: 100%; justify-content: center; }
    .modal { padding: 28px 22px 22px; }

    /* Footer */
    .footer { margin-top: 56px; }
    .footer__inner {
        grid-template-columns: 1fr;
        gap: 40px;
        padding: 48px 20px 36px;
    }
    .footer__cols {
        grid-template-columns: 1fr 1fr;
        gap: 24px;
    }
    .footer__bottom-inner { padding: 18px 20px; }
}