:root {
    --petrobras-blue: #003087;
    --petrobras-green: #008542;
    --petrobras-yellow: #FFD100;
    --petrobras-red: #E30613;
    --text-dark: #333333;
    --text-muted: #555555;
    --bg-light: #F9F9F9;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background-color: #ffffff;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--text-dark);
    font-weight: 700;
}

.section-title {
    position: relative;
    padding-bottom: 12px;
    margin-bottom: 24px;
    color: inherit;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background-color: var(--petrobras-yellow);
}

.section-title-center::after {
    left: 50%;
    transform: translateX(-50%);
}

/* Buttons - Pill shaped as per official site */
.btn-petrobras-primary {
    background-color: var(--petrobras-green);
    color: white;
    padding: 0.75rem 2rem;
    border-radius: 9999px;
    font-weight: 700;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: none;
    cursor: pointer;
}

.btn-petrobras-primary:hover {
    background-color: #006b35;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 133, 66, 0.2);
}

.btn-petrobras-secondary {
    background-color: white;
    color: var(--petrobras-green);
    border: 2px solid var(--petrobras-green);
    padding: 0.75rem 2rem;
    border-radius: 9999px;
    font-weight: 700;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-petrobras-secondary:hover {
    background-color: #f0fdf4;
    transform: translateY(-2px);
}

/* Navigation */
.nav-link-active {
    color: var(--petrobras-green) !important;
    font-weight: 700;
    border-bottom: 4px solid var(--petrobras-green);
}

/* Cards */
.petro-card {
    background: white;
    border: 1px solid #ECECEC;
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.petro-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
}

/* Slanted Divider */
.slanted-divider {
    position: relative;
    clip-path: polygon(0 0, 100% 0, 100% 85%, 0 100%);
    padding-bottom: 5rem;
}

/* Forms */
.petro-input {
    width: 100%;
    padding: 0.875rem 1rem;
    border-radius: 8px;
    border: 1px solid #D1D5DB;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.petro-input:focus {
    outline: none;
    border-color: var(--petrobras-green);
    box-shadow: 0 0 0 3px rgba(0, 133, 66, 0.2);
}

/* Accessibility */
:focus-visible {
    outline: 3px solid var(--petrobras-yellow);
    outline-offset: 2px;
}

/* Backgrounds */
.bg-petro-light {
    background-color: var(--bg-light);
}

.bg-petro-blue {
    background-color: var(--petrobras-blue);
}

.bg-petro-green {
    background-color: var(--petrobras-green);
}

/* Animation Overrides */
[data-aos] {
    transition-duration: 600ms !important;
}