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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.7;
    color: #1a1a1a;
    background-color: #ffffff;
    overflow-x: hidden;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    background-color: #ffffff;
    min-height: 100vh;
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.08);
}

header {
    background-color: #1e56a0;
    color: #ffffff;
    padding: 50px 40px 35px;
    text-align: center;
    border-bottom: 4px solid #163d71;
}

header h1 {
    font-size: clamp(1.75rem, 5vw, 2.5rem);
    margin-bottom: 10px;
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.5px;
    color: #ffffff;
}

.last-update {
    font-size: clamp(0.875rem, 2.5vw, 0.95rem);
    opacity: 1;
    font-weight: 400;
    color: #ffffff;
}

main {
    padding: 40px;
    background-color: #ffffff;
}

section {
    margin-bottom: 35px;
    scroll-margin-top: 20px;
}

h2 {
    color: #1e56a0;
    font-size: clamp(1.25rem, 3.5vw, 1.5rem);
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid #d6e4f0;
    line-height: 1.3;
    font-weight: 600;
    letter-spacing: -0.3px;
}

h3 {
    color: #1e56a0;
    font-size: clamp(1.125rem, 3vw, 1.25rem);
    margin-top: 20px;
    margin-bottom: 12px;
    font-weight: 600;
    letter-spacing: -0.2px;
}

p {
    margin-bottom: 15px;
    text-align: left;
    font-size: clamp(0.9375rem, 2.5vw, 1rem);
    line-height: 1.7;
    color: #2c2c2c;
}

ul, ol {
    margin-left: 20px;
    margin-bottom: 15px;
    padding-left: 10px;
}

ol {
    list-style-type: decimal;
}

li {
    margin-bottom: 12px;
    font-size: clamp(0.9375rem, 2.5vw, 1rem);
    line-height: 1.6;
    color: #2c2c2c;
}

strong {
    color: #1e56a0;
    font-weight: 600;
}

a {
    color: #1e56a0;
    text-decoration: underline;
    transition: color 0.2s ease;
}

a:hover {
    color: #163d71;
}

a:visited {
    color: #163d71;
}

code {
    background-color: #f0f4f8;
    color: #163d71;
    padding: 2px 6px;
    border-radius: 3px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9em;
}

footer {
    background-color: #163d71;
    color: #ffffff;
    text-align: center;
    padding: 25px 40px;
    margin-top: 40px;
    border-top: 3px solid #1e56a0;
}

footer p {
    margin: 0;
    font-size: clamp(0.8125rem, 2.5vw, 0.9rem);
    line-height: 1.5;
    color: #ffffff;
}

footer code {
    background-color: rgba(255, 255, 255, 0.15);
    color: #ffffff;
    padding: 2px 6px;
    border-radius: 3px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9em;
}

/* Tablets e telas médias */
@media (max-width: 768px) {
    .container {
        box-shadow: 0 0 15px rgba(0, 0, 0, 0.05);
    }

    header {
        padding: 40px 25px 30px;
    }

    main {
        padding: 30px 25px;
    }

    section {
        margin-bottom: 30px;
    }

    ul {
        margin-left: 15px;
        padding-left: 8px;
    }

    footer {
        padding: 20px 25px;
    }
}

/* Smartphones - Telas pequenas */
@media (max-width: 480px) {
    header {
        padding: 30px 20px 25px;
    }

    header h1 {
        font-size: 1.75rem;
        margin-bottom: 8px;
    }

    .last-update {
        font-size: 0.875rem;
    }

    main {
        padding: 25px 20px;
    }

    section {
        margin-bottom: 25px;
    }

    h2 {
        font-size: 1.25rem;
        margin-bottom: 12px;
        padding-bottom: 8px;
    }

    p {
        margin-bottom: 12px;
        font-size: 0.9375rem;
        text-align: left;
    }

    ul {
        margin-left: 12px;
        padding-left: 5px;
    }

    li {
        margin-bottom: 10px;
        font-size: 0.9375rem;
    }

    footer {
        padding: 18px 20px;
        margin-top: 30px;
    }

    footer p {
        font-size: 0.8125rem;
    }
}

/* Smartphones muito pequenos */
@media (max-width: 360px) {
    header {
        padding: 25px 15px 20px;
    }

    header h1 {
        font-size: 1.5rem;
    }

    main {
        padding: 20px 15px;
    }

    section {
        margin-bottom: 20px;
    }

    h2 {
        font-size: 1.125rem;
    }

    p, li {
        font-size: 0.875rem;
    }
}

/* Melhorias de touch para dispositivos móveis */
@media (hover: none) and (pointer: coarse) {
    a {
        min-height: 44px;
        display: inline-flex;
        align-items: center;
    }

    li {
        padding: 4px 0;
    }
}

/* Modo paisagem em smartphones */
@media (max-height: 500px) and (orientation: landscape) {
    header {
        padding: 20px 25px 15px;
    }

    header h1 {
        font-size: 1.5rem;
    }

    main {
        padding: 20px 25px;
    }

    section {
        margin-bottom: 20px;
    }
}