/* ============================================================
   VARIÁVEIS E RESET
   ============================================================ */
:root {
    --deep-petrol-blue: #053559;
    --steel-gray:       #ADBCCC;
    --pure-white:       #FFFFFF;
    --burnt-orange:     #F57E3D;
    --light-gray-bg:    #F4F6F8;
    --text-dark:        #1a2e3f;
    --text-muted:       #5a7082;
    --radius:           8px;
    --shadow-sm:        0 4px 16px rgba(0,0,0,.07);
    --shadow-md:        0 12px 30px rgba(0,0,0,.13);
    --transition:       .3s ease;
}

*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.7;
    color: var(--text-dark);
    background-color: var(--pure-white);
    overflow-x: hidden;
}

/* CORREÇÃO 1: h1 usa clamp() para ser naturalmente responsivo */
h1 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 800;
    line-height: 1.2;
    font-size: clamp(1.75rem, 4.5vw, 3.5rem);
}
h2 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    line-height: 1.3;
    font-size: clamp(1.5rem, 3vw, 2.6rem);
    color: var(--deep-petrol-blue);
}
h3 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    line-height: 1.4;
    font-size: clamp(1rem, 2vw, 1.5rem);
    color: var(--deep-petrol-blue);
}

p { font-size: 1.05rem; color: var(--text-dark); }

a { text-decoration: none; color: var(--deep-petrol-blue); transition: color var(--transition); }
a:hover { color: var(--burnt-orange); }

ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section-padding { padding: 90px 0; }

.section-title {
    text-align: center;
    margin-bottom: 16px;
    color: var(--deep-petrol-blue);
}
.section-subtitle {
    text-align: center;
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 780px;
    margin: 0 auto 60px;
    line-height: 1.75;
}
.text-white { color: var(--pure-white) !important; }
.bg-light   { background-color: var(--light-gray-bg); }
.bg-dark    { background-color: var(--deep-petrol-blue); }

/* ============================================================
   BOTÕES
   ============================================================ */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 5px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 1rem;
    text-align: center;
    border: 2px solid transparent;
    cursor: pointer;
    transition: background-color var(--transition), color var(--transition),
                transform var(--transition), box-shadow var(--transition);
}
.btn-primary {
    background-color: var(--burnt-orange);
    color: var(--pure-white);
    border-color: var(--burnt-orange);
}
.btn-primary:hover {
    background-color: #d96928;
    border-color: #d96928;
    color: var(--pure-white);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(245,126,61,.35);
}
.btn-secondary {
    background-color: transparent;
    color: var(--pure-white);
    border-color: var(--pure-white);
}
.btn-secondary:hover {
    background-color: var(--pure-white);
    color: var(--deep-petrol-blue);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(255,255,255,.2);
}
.btn-submit {
    width: 100%;
    padding: 16px;
    font-size: 1.05rem;
    margin-top: 8px;
}

/* ============================================================
   HEADER
   ============================================================ */
.header {
    position: fixed;
    top: 0; left: 0;
    width: 100%;
    background-color: rgba(173,188,204,.92);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 18px 0;
    transition: background-color var(--transition), padding var(--transition), box-shadow var(--transition);
    box-shadow: 0 2px 10px rgba(0,0,0,.08);
}
.header.scrolled {
    background-color: rgba(173,188,204,1);
    padding: 10px 0;
    box-shadow: 0 4px 20px rgba(0,0,0,.15);
}
.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}
.logo-link {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    flex-shrink: 0;
}
.logo-img { width: 40px; height: 40px; object-fit: contain; }
.logo-texto {
    font-family: 'Montserrat', sans-serif;
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--deep-petrol-blue);
    letter-spacing: 1px;
    line-height: 1;
}
.nav ul { display: flex; gap: 28px; align-items: center; }
.nav ul li a {
    color: var(--deep-petrol-blue);
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 0.95rem;
    position: relative;
    padding-bottom: 4px;
    transition: color var(--transition);
}
.nav ul li a:hover { color: var(--burnt-orange); }
.nav ul li a::after {
    content: '';
    position: absolute;
    left: 0; bottom: 0;
    width: 0; height: 2px;
    background-color: var(--burnt-orange);
    transition: width var(--transition);
}
.nav ul li a:hover::after { width: 100%; }
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--deep-petrol-blue);
    padding: 4px;
    flex-shrink: 0;
}
.menu-toggle svg { width: 28px; height: 28px; display: block; }

/* ============================================================
   HERO — CORREÇÃO 1: responsividade completa via clamp()
   ============================================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--pure-white);
    background-image: url('image/entardecer.jpg');
    background-size: cover;
    background-position: center;
    /* background-attachment: fixed removido — quebra em iOS Safari */
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(5,53,89,.70);
}
.hero .container {
    position: relative; z-index: 1;
    max-width: 920px;
    padding-top: 110px;
    padding-bottom: 70px;
}
.hero h1 {
    /* clamp garante responsividade sem media queries extras */
    font-size: clamp(1.75rem, 5vw, 3.8rem);
    color: var(--pure-white);
    margin-bottom: 22px;
    text-shadow: 0 2px 12px rgba(0,0,0,.25);
}
.hero p {
    font-size: clamp(1rem, 2.2vw, 1.35rem);
    color: rgba(255,255,255,.85);
    font-weight: 300;
    margin-bottom: 44px;
    max-width: 740px;
    margin-left: auto;
    margin-right: auto;
}
.hero-ctas { display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; }

/* ============================================================
   PROBLEMAS
   ============================================================ */
.problemas { background-color: var(--pure-white); }
.problemas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 32px; margin-top: 56px;
}
.problema-item {
    background-color: var(--pure-white);
    padding: 30px 28px 30px 38px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    position: relative; overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition);
}
.problema-item:hover { transform: translateY(-10px); box-shadow: var(--shadow-md); }
.problema-bar {
    position: absolute; top: 0; left: 0;
    width: 7px; height: 100%;
    background-color: var(--burnt-orange);
    transition: width var(--transition);
}
.problema-item:hover .problema-bar { width: 100%; opacity: .08; }
.problema-icon { font-size: 2rem; color: var(--burnt-orange); margin-bottom: 14px; position: relative; z-index: