/* ==========================================================================
   PINHUBS - DESIGN SYSTEM (B2B / MINIMALISTA)
   ========================================================================== */

:root {
    /* Colors */
    --primary: #FF5A00; /* Pinhubs Orange */
    --primary-hover: #E04E00;
    --white: #FFFFFF;
    --black: #111111;
    --gray-50: #F7F7F9; /* Airbnb light gray */
    --gray-100: #EBEBEB;
    --gray-200: #DDDDDD;
    --gray-300: #B0B0B0;
    --gray-400: #717171; /* Subtle text */
    --text-dark: #222222;
    
    /* Typography */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    
    /* Spacing */
    --space-1: 8px;
    --space-2: 16px;
    --space-3: 24px;
    --space-4: 32px;
    --space-5: 48px;
    --space-6: 64px;
    --space-8: 96px;
    
    /* Utilities */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
    --shadow-md: 0 8px 24px rgba(0,0,0,0.08);
}

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

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

body {
    font-family: var(--font-main);
    color: var(--text-dark);
    background-color: var(--white);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    display: block;
}

/* ==========================================================================
   TYPOGRAPHY
   ========================================================================== */
h1, h2, h3, h4 {
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--text-dark);
}

.hero-headline {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: var(--space-3);
    letter-spacing: -0.03em;
}

.hero-subheadline {
    font-size: 1.25rem;
    color: var(--gray-400);
    margin-bottom: var(--space-4);
    max-width: 600px;
    line-height: 1.6;
    font-weight: 400;
}

.section-title {
    font-size: 2.25rem;
    margin-bottom: var(--space-2);
    font-weight: 600;
}

.section-text {
    font-size: 1.125rem;
    color: var(--gray-400);
    line-height: 1.6;
    font-weight: 400;
}

.insight-headline {
    font-size: 2.75rem;
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.03em;
}

/* Utilities */
.text-center { text-align: center; }
.text-muted { color: var(--gray-400); }
.text-primary { color: var(--primary); }
.fw-500 { font-weight: 500; }
.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }
.mx-auto { margin-left: auto; margin-right: auto; }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-5 { margin-bottom: var(--space-5); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-5 { margin-top: var(--space-5); }
.w-100 { width: 100%; }

/* ==========================================================================
   LAYOUT
   ========================================================================== */
.container {
    width: 100%;
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 var(--space-3);
}

.section {
    padding: var(--space-8) 0;
}

.bg-gray {
    background-color: var(--gray-50);
}

.grid {
    display: grid;
    gap: var(--space-4);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ==========================================================================
   COMPONENTS
   ========================================================================== */

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--white);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 90, 0, 0.3);
}

.btn-outline {
    background-color: transparent;
    color: var(--text-dark);
    border-color: var(--gray-200);
}

.btn-outline:hover {
    border-color: var(--text-dark);
    background-color: var(--gray-50);
}

.btn-white {
    background-color: var(--white);
    color: var(--text-dark);
}

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.125rem;
}

/* Navbar */
.navbar {
    padding: var(--space-3) 0;
    background-color: var(--white);
    border-bottom: 1px solid var(--gray-100);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    height: 96px;
    width: auto;
}

/* Hero Section */
.hero {
    padding: var(--space-6) 0 var(--space-8);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--space-6);
    align-items: center;
}

.hero-img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    width: 100%;
    object-fit: cover;
    transition: opacity 0.5s ease-in-out;
}

.hero-img.fade-out {
    opacity: 0;
}

/* Cards */
.card-minimal {
    background: var(--white);
    border: 1px solid var(--gray-100);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    transition: box-shadow 0.3s ease;
}

.card-minimal:hover {
    box-shadow: var(--shadow-md);
}

.problem-card {
    text-align: center;
}

.icon-large {
    font-size: 2.5rem;
    margin-bottom: var(--space-2);
}

.card-icon {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: var(--space-2);
}

/* Insight Tags */
.insight-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-2);
}

.tag {
    background-color: var(--gray-50);
    border: 1px solid var(--gray-200);
    padding: 10px 20px;
    border-radius: 100px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.05rem;
}

.tag i {
    color: var(--primary);
    font-size: 1.2rem;
}

/* Solution List */
.solution-wrapper {
    background: var(--white);
    padding: var(--space-6);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-100);
}

.solution-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
}

.solution-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.solution-item i {
    font-size: 1.5rem;
    margin-top: 2px;
}

.solution-item p {
    font-size: 1.125rem;
    line-height: 1.5;
}

/* Differential */
.differential {
    background-color: var(--white);
}

.badge-accent {
    display: inline-block;
    background-color: rgba(255, 90, 0, 0.1);
    color: var(--primary);
    padding: 6px 16px;
    border-radius: 100px;
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.highlight-box {
    background-color: var(--gray-50);
    border-left: 4px solid var(--primary);
    padding: var(--space-3);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-size: 1.25rem;
    line-height: 1.6;
}

/* Simulator Form */
.simulator-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    max-width: 500px;
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: var(--space-3);
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 1rem;
    color: var(--text-dark);
}

.input-large {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    font-size: 1.125rem;
    font-family: var(--font-main);
    transition: border-color 0.2s;
}

.input-large:focus {
    outline: none;
    border-color: var(--text-dark);
}

/* Final CTA */
.final-cta {
    background-color: var(--primary);
}

/* Footer */
.footer {
    padding: var(--space-5) 0 var(--space-4);
    border-top: 1px solid var(--gray-200);
}

.footer-logo {
    height: 24px;
    margin: 0 auto;
    filter: grayscale(100%);
    opacity: 0.5;
}

/* ==========================================================================
   RESPONSIVE (Mobile First approach adaptations)
   ========================================================================== */
@media (max-width: 992px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-headline {
        font-size: 3rem;
    }

    .hero-subheadline {
        margin: 0 auto var(--space-4);
    }
    
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hero-headline {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .insight-headline {
        font-size: 2rem;
    }

    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }

    .solution-list {
        grid-template-columns: 1fr;
    }

    .section {
        padding: var(--space-5) 0;
    }

    .nav-logo {
        height: 72px; /* Redução de aprox 25% para telas pequenas */
    }

    .nav-links .btn {
        padding: 8px 16px;
        font-size: 0.875rem; /* Redução do texto do botão no mobile */
    }
}