/* ==========================================================
   A.R Investimentos SA — Folha de estilos
   Paleta: Azul-marinho profundo + Dourado suave
   ========================================================== */

:root {
    --color-primary: #0a2540;
    --color-primary-dark: #061a30;
    --color-primary-light: #143a63;
    --color-accent: #c9a961;
    --color-accent-dark: #a88a45;
    --color-text: #1a2a3a;
    --color-text-light: #54657a;
    --color-bg: #ffffff;
    --color-bg-soft: #f6f8fb;
    --color-bg-dark: #0a2540;
    --color-border: #e3e8ef;

    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-serif: 'Playfair Display', Georgia, serif;

    --radius: 8px;
    --radius-lg: 16px;
    --shadow-sm: 0 2px 8px rgba(10, 37, 64, 0.06);
    --shadow-md: 0 8px 24px rgba(10, 37, 64, 0.08);
    --shadow-lg: 0 20px 60px rgba(10, 37, 64, 0.12);

    --container: 1180px;
    --transition: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============ RESET / BASE ============ */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.65;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }

.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

/* ============ TIPOGRAFIA ============ */
h1, h2, h3, h4 {
    font-family: var(--font-serif);
    line-height: 1.2;
    color: var(--color-primary);
    font-weight: 700;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
h3 { font-size: 1.25rem; font-family: var(--font-sans); font-weight: 600; }
h4 { font-size: 1rem; font-family: var(--font-sans); font-weight: 600; }

.accent { color: var(--color-accent); }
.lead { font-size: 1.125rem; font-weight: 500; color: var(--color-text); }

/* ============ BOTÕES ============ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.01em;
    transition: all var(--transition);
    cursor: pointer;
    white-space: nowrap;
}
.btn--primary {
    background: var(--color-accent);
    color: var(--color-primary);
}
.btn--primary:hover {
    background: var(--color-accent-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}
.btn--ghost {
    background: transparent;
    color: #fff;
    border: 1.5px solid rgba(255,255,255,0.4);
}
.btn--ghost:hover {
    background: rgba(255,255,255,0.1);
    border-color: #fff;
}
.btn--small {
    padding: 10px 18px;
    font-size: 0.875rem;
}
.btn--block {
    width: 100%;
}

/* ============ HEADER ============ */
.header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: saturate(180%) blur(12px);
    -webkit-backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid transparent;
    transition: all var(--transition);
}
.header.scrolled {
    border-bottom-color: var(--color-border);
    box-shadow: var(--shadow-sm);
}
.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 76px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}
.logo__mark {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: var(--color-accent);
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: 0.02em;
    border-radius: 6px;
}
.logo__text { display: flex; flex-direction: column; line-height: 1.1; }
.logo__text strong {
    font-family: var(--font-serif);
    font-size: 1.05rem;
    color: var(--color-primary);
    font-weight: 700;
}
.logo__text small {
    font-size: 0.7rem;
    color: var(--color-text-light);
    letter-spacing: 0.15em;
}

/* ============ NAVEGAÇÃO ============ */
.nav__list {
    display: flex;
    align-items: center;
    gap: 8px;
}
.nav__list a {
    padding: 10px 16px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text);
    border-radius: 6px;
}
.nav__list a:hover {
    color: var(--color-primary);
    background: var(--color-bg-soft);
}
.nav__list .btn--small {
    margin-left: 8px;
}
.nav__list .btn--small:hover {
    background: var(--color-accent-dark);
    color: #fff;
}

.nav__toggle {
    display: none;
    width: 40px;
    height: 40px;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    padding: 0 8px;
}
.nav__toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-primary);
    border-radius: 2px;
    transition: transform var(--transition), opacity var(--transition);
}
.nav__toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle.active span:nth-child(2) { opacity: 0; }
.nav__toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============ HERO ============ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    color: #fff;
    padding: 120px 0 80px;
}
.hero__bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 80% 20%, rgba(201, 169, 97, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 20% 80%, rgba(20, 58, 99, 0.4) 0%, transparent 50%),
        linear-gradient(135deg, #0a2540 0%, #061a30 100%);
    z-index: -1;
}
.hero__bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.5;
}
.hero__content {
    position: relative;
    z-index: 1;
}
.hero__eyebrow {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(201, 169, 97, 0.15);
    color: var(--color-accent);
    border: 1px solid rgba(201, 169, 97, 0.3);
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 24px;
}
.hero__title {
    color: #fff;
    margin-bottom: 24px;
    max-width: 800px;
}
.hero__subtitle {
    font-size: clamp(1.05rem, 1.5vw, 1.25rem);
    color: rgba(255,255,255,0.85);
    max-width: 640px;
    margin-bottom: 40px;
    line-height: 1.6;
}
.hero__actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 80px;
}
.hero__stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    max-width: 720px;
    padding-top: 40px;
    border-top: 1px solid rgba(255,255,255,0.15);
}
.stat strong {
    display: block;
    font-family: var(--font-serif);
    font-size: clamp(2rem, 3.5vw, 2.8rem);
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: 8px;
}
.stat span {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.7);
}

/* ============ SECÇÕES ============ */
.section {
    padding: 100px 0;
}
.section--light { background: var(--color-bg-soft); }
.section--dark {
    background: var(--color-primary);
    color: rgba(255,255,255,0.85);
}
.section--dark h2,
.section--dark h3 { color: #fff; }

.section__head {
    text-align: center;
    max-width: 760px;
    margin: 0 auto 64px;
}
.section__eyebrow {
    display: inline-block;
    color: var(--color-accent);
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 16px;
}
.section__title {
    margin-bottom: 16px;
}
.section__lead {
    font-size: 1.1rem;
    color: inherit;
    opacity: 0.85;
}

/* ============ SOBRE ============ */
.about__grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 60px;
    align-items: start;
}
.about__text p {
    margin-bottom: 16px;
    color: var(--color-text-light);
}
.about__text p.lead { color: var(--color-text); margin-bottom: 20px; }

.values {
    margin-top: 32px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.values li {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}
.values__icon {
    color: var(--color-accent);
    font-size: 1.2rem;
    line-height: 1.4;
    flex-shrink: 0;
}
.values h3 {
    margin-bottom: 4px;
    color: var(--color-primary);
}
.values p {
    font-size: 0.95rem;
    color: var(--color-text-light);
    margin: 0;
}

.about__card {
    background: #fff;
    padding: 40px;
    border-radius: var(--radius-lg);
    border-top: 4px solid var(--color-accent);
    box-shadow: var(--shadow-md);
}
.about__card h3 {
    color: var(--color-accent);
    font-size: 0.85rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 12px;
}
.about__card p {
    color: var(--color-text);
    margin-bottom: 24px;
    line-height: 1.6;
}
.about__card hr {
    border: 0;
    height: 1px;
    background: var(--color-border);
    margin: 24px 0;
}
.about__card p:last-child { margin-bottom: 0; }

/* ============ SERVIÇOS ============ */
.services {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 60px;
}
.service {
    position: relative;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    transition: all var(--transition);
}
.service:hover {
    background: rgba(255,255,255,0.08);
    border-color: rgba(201, 169, 97, 0.4);
    transform: translateY(-4px);
}
.service--featured {
    background: rgba(201, 169, 97, 0.08);
    border-color: rgba(201, 169, 97, 0.3);
}
.service__badge {
    position: absolute;
    top: -12px;
    left: 32px;
    background: var(--color-accent);
    color: var(--color-primary);
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}
.service__icon {
    width: 56px;
    height: 56px;
    color: var(--color-accent);
    margin-bottom: 24px;
}
.service h3 {
    color: #fff;
    font-size: 1.4rem;
    font-family: var(--font-serif);
    margin-bottom: 12px;
}
.service > p {
    margin-bottom: 20px;
    color: rgba(255,255,255,0.75);
    font-size: 0.95rem;
}
.service ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.service ul li {
    padding-left: 22px;
    position: relative;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.85);
    line-height: 1.5;
}
.service ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 12px;
    height: 2px;
    background: var(--color-accent);
}

.services__cta {
    text-align: center;
    padding: 32px;
    border: 1px dashed rgba(255,255,255,0.2);
    border-radius: var(--radius-lg);
}
.services__cta p {
    margin-bottom: 16px;
    color: rgba(255,255,255,0.75);
}

/* ============ PROCESSO ============ */
.process {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    counter-reset: process;
}
.process li {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}
.process li:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}
.process__num {
    display: inline-block;
    font-family: var(--font-serif);
    font-size: 2.5rem;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: 16px;
    font-weight: 700;
}
.process h3 {
    color: var(--color-primary);
    margin-bottom: 8px;
}
.process p {
    color: var(--color-text-light);
    font-size: 0.95rem;
}

/* ============ CONTACTOS ============ */
.section--contact {
    background: var(--color-bg-soft);
}
.contact__grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 48px;
    align-items: start;
}
.contact__form {
    background: #fff;
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}
.form__row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.form__field {
    margin-bottom: 20px;
}
.form__field label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-primary);
}
.form__field input,
.form__field select,
.form__field textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 0.95rem;
    color: var(--color-text);
    background: #fff;
    transition: border-color var(--transition), box-shadow var(--transition);
}
.form__field input:focus,
.form__field select:focus,
.form__field textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 4px rgba(201, 169, 97, 0.12);
}
.form__field textarea {
    resize: vertical;
    min-height: 120px;
}
.form__checkbox {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    margin-bottom: 24px;
    font-size: 0.875rem;
    color: var(--color-text-light);
    line-height: 1.5;
}
.form__checkbox input { margin-top: 3px; flex-shrink: 0; }
.form__checkbox a {
    color: var(--color-primary);
    text-decoration: underline;
}
.form__status {
    margin-top: 16px;
    font-size: 0.9rem;
    text-align: center;
    min-height: 22px;
}
.form__status.success { color: #2e7d32; }
.form__status.error { color: #c62828; }

/* Honeypot anti-spam — escondido visualmente mas presente no DOM */
.hidden-field {
    position: absolute !important;
    left: -9999px !important;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.muted {
    color: var(--color-text-light);
    font-size: 0.9em;
    font-style: italic;
}

.contact__info h3 {
    color: var(--color-accent);
    font-size: 0.8rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 8px;
    margin-top: 24px;
}
.contact__info h3:first-child { margin-top: 0; }
.contact__info p {
    color: var(--color-text);
    line-height: 1.7;
}
.contact__info a:hover { color: var(--color-accent); }
.contact__social {
    display: flex;
    gap: 16px;
    margin-top: 8px;
}
.contact__social a {
    padding: 8px 14px;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all var(--transition);
}
.contact__social a:hover {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

/* ============ RODAPÉ ============ */
.footer {
    background: var(--color-primary-dark);
    color: rgba(255,255,255,0.7);
    padding-top: 80px;
}
.footer__inner {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 60px;
}
.footer__brand p {
    margin-top: 20px;
    font-size: 0.95rem;
    line-height: 1.6;
    max-width: 320px;
}
.logo--footer .logo__mark { background: var(--color-accent); color: var(--color-primary); }
.logo--footer .logo__text strong { color: #fff; }
.logo--footer .logo__text small { color: rgba(255,255,255,0.6); }

.footer__col h4 {
    color: var(--color-accent);
    font-size: 0.85rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 16px;
}
.footer__col ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.footer__col a {
    font-size: 0.95rem;
    color: rgba(255,255,255,0.7);
}
.footer__col a:hover { color: var(--color-accent); }

.footer__bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 24px 0;
    font-size: 0.85rem;
}
.footer__bottom .container {
    text-align: center;
}

/* ============ ANIMAÇÕES ============ */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 700ms ease, transform 700ms ease;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 960px) {
    .about__grid { grid-template-columns: 1fr; gap: 40px; }
    .services { grid-template-columns: 1fr; }
    .process { grid-template-columns: repeat(2, 1fr); }
    .contact__grid { grid-template-columns: 1fr; gap: 32px; }
    .footer__inner { grid-template-columns: 1fr 1fr; gap: 40px; }
    .footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 720px) {
    .section { padding: 70px 0; }
    .nav__toggle { display: flex; }
    .nav__list {
        position: fixed;
        top: 76px;
        left: 0; right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        background: #fff;
        padding: 16px;
        box-shadow: var(--shadow-md);
        border-top: 1px solid var(--color-border);
        transform: translateY(-110%);
        transition: transform var(--transition);
        max-height: calc(100vh - 76px);
        overflow-y: auto;
    }
    .nav__list.open { transform: translateY(0); }
    .nav__list a { padding: 14px 16px; }
    .nav__list .btn--small { margin: 8px 16px 0; text-align: center; }

    .hero { padding: 140px 0 60px; min-height: auto; }
    .hero__stats { grid-template-columns: 1fr; gap: 16px; padding-top: 24px; }
    .hero__actions { flex-direction: column; align-items: stretch; }
    .hero__actions .btn { width: 100%; }

    .form__row { grid-template-columns: 1fr; gap: 0; }
    .contact__form { padding: 28px 20px; }
    .about__card { padding: 28px; }

    .process { grid-template-columns: 1fr; }
    .footer__inner { grid-template-columns: 1fr; gap: 32px; }
    .footer__brand { grid-column: auto; }

    .logo__text small { display: none; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}