:root {
    --primary-color: #1a1a1a;
    --accent-color: #c5a059;
    --text-light: #f4f4f4;
    --text-dark: #333;
    --bg-card: #ffffff;
}

:focus-visible {
    outline: 3px solid var(--accent-color);
    outline-offset: 3px;
}

.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    background: var(--primary-color);
    color: var(--text-light);
    padding: 10px 16px;
    z-index: 10000;
    border-radius: 0 0 8px 0;
}

.skip-link:focus {
    left: 0;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f9f9f9;
    color: var(--text-dark);
}

header {
    background-color: var(--primary-color);
    color: var(--text-light);
    padding: 40px 20px;
    border-bottom: 5px solid var(--accent-color);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.header-logo {
    height: 100px; /* Tamanho do machado no header */
    width: auto;
    /* Filtro opcional para dar um leve brilho ao machado dourado */
    filter: drop-shadow(0 0 5px rgba(197, 160, 89, 0.4));
}

.header-text h1 {
    margin: 0;
    font-size: 2.5em;
    letter-spacing: 2px;
    text-transform: uppercase;
    text-align: center;
}

.header-text p {
    font-style: italic;
    color: var(--accent-color);
    margin: 5px 0 0 0;
    text-align: center;
}

nav {
    background: #222;
    padding: 10px;
    position: sticky;
    top: 0;
    text-align: center;
    z-index: 1000;
}

nav a {
    color: var(--text-light);
    text-decoration: none;
    margin: 0 15px;
    font-weight: bold;
    font-size: 0.9em;
    border-radius: 4px;
}

nav a:hover,
nav a:focus-visible {
    color: var(--accent-color);
}

.notas a {
    color: var(--accent-color);
    text-decoration: none;
}

.notas a:hover {
    text-decoration: underline;
}

.container {
    max-width: 1000px;
    margin: 20px auto;
    padding: 20px;
}

.intro {
    text-align: justify;
    margin-bottom: 50px;
}

.section-container {
    text-align: justify;
    margin-bottom: 50px;
}

.section-title {
    border-left: 5px solid var(--accent-color);
    padding-left: 15px;
    margin: 40px 0 20px;
    color: var(--primary-color);
}

.bimestre-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.card {
    background: var(--bg-card);
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.card h3 {
    margin-top: 0;
    color: var(--accent-color);
    border-bottom: 1px solid #eee;
    padding-bottom: 10px;
}

.bastiao-link {
    display: block;
    background: #f1f1f1;
    margin: 8px 0;
    padding: 10px;
    text-decoration: none;
    color: var(--primary-color);
    border-radius: 4px;
    transition: 0.3s;
    font-size: 0.9em;
}

.bastiao-link:hover {
    background: var(--accent-color);
    color: white;
}

.footer {
    background: var(--primary-color);
    color: white;
    text-align: center;
    padding: 30px;
    margin-top: 50px;
}

/* ========== ESTILOS PARA ARTIGOS ========== */
.article-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    margin: 40px 0;
    padding: 20px;
    background: #f0f0f0;
    border-radius: 8px;
    flex-wrap: wrap;
}

.article-nav a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: bold;
    padding: 10px 15px;
    border: 2px solid var(--accent-color);
    border-radius: 6px;
    transition: all 0.3s ease;
}

.article-nav a:hover,
.article-nav a:focus-visible {
    background: var(--accent-color);
    color: white;
    transform: translateY(-2px);
}

.article-nav-disabled {
    color: #999;
    padding: 10px 15px;
    font-weight: bold;
}

.tag {
    display: inline-block;
    background: #e0e0e0;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 0.75em;
    margin-bottom: 10px;
}

/* Estilos da Página Inicial */
.home-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.home-header {
    margin-bottom: 60px;
}

.home-header h2 {
    font-size: 3em;
    color: var(--primary-color);
    margin: 0 0 15px 0;
    text-transform: uppercase;
    letter-spacing: 3px;
}

.home-header p {
    font-size: 1.3em;
    color: var(--accent-color);
    font-style: italic;
    margin: 0;
}

.stages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    max-width: 1000px;
    width: 100%;
    background: transparent;
}

.stage-card {
    background: var(--bg-card);
    border: 2px solid var(--accent-color);
    border-radius: 12px;
    padding: 40px 30px;
    text-decoration: none;
    color: inherit;
    transition: all 0.4s ease;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.stage-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(197, 160, 89, 0.3);
    border-color: var(--primary-color);
}

.stage-card h3 {
    font-size: 2em;
    color: var(--accent-color);
    margin: 0 0 15px 0;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stage-card p {
    color: var(--text-dark);
    font-size: 1em;
    line-height: 1.8;
    margin: 0;
}

.stage-icon {
    height: 100px;
    width: auto;
    max-width: 150px;
    margin: 0 auto 15px auto;
    display: block;
    object-fit: contain;
}

/* ========== ESTILOS DE LOGIN ========== */

.login-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color) 0%, #2a2a2a 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100%;
    padding: 20px;
}

.login-box {
    background: var(--bg-card);
    border: 2px solid var(--accent-color);
    border-radius: 12px;
    padding: 50px 40px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    max-width: 400px;
    width: 100%;
}

.login-logo {
    height: 80px;
    width: auto;
    margin-bottom: 30px;
    filter: drop-shadow(0 0 5px rgba(197, 160, 89, 0.4));
}

.login-box h1 {
    color: var(--primary-color);
    font-size: 2em;
    margin: 0 0 10px 0;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.login-subtitle {
    color: #666;
    font-size: 0.95em;
    margin: 0 0 30px 0;
}

#login-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

#password-input {
    padding: 12px 15px;
    border: 2px solid #ddd;
    border-radius: 6px;
    font-size: 1em;
    transition: all 0.3s ease;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

#password-input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 8px rgba(197, 160, 89, 0.3);
}

.login-button {
    padding: 12px 20px;
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 1em;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.login-button:hover {
    background: #b8953a;
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(197, 160, 89, 0.3);
}

.login-button:active {
    transform: translateY(0);
}

.login-error {
    color: #d32f2f;
    font-weight: bold;
    margin-top: 10px;
    font-size: 0.95em;
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.main-content {
    /* Garante que o conteúdo principal fique visível quando autenticado */
}

/* ========== RESPONSIVIDADE PARA CELULARES ========== */
@media (max-width: 768px) {
    .login-container {
        padding: 15px;
    }

    .login-box {
        padding: 35px 25px;
        border-radius: 10px;
    }

    .login-box h1 {
        font-size: 1.5em;
        margin-bottom: 8px;
    }

    .login-subtitle {
        font-size: 0.9em;
        margin-bottom: 20px;
    }

    .login-logo {
        height: 60px;
        margin-bottom: 20px;
    }

    #password-input {
        padding: 10px 12px;
        font-size: 16px;
    }

    .login-button {
        padding: 10px 15px;
        font-size: 0.95em;
    }

    .login-error {
        font-size: 0.9em;
    }

    header {
        padding: 25px 15px;
    }

    .header-container {
        gap: 15px;
    }

    .header-logo {
        height: 70px;
    }

    .header-text h1 {
        font-size: 1.8em;
        letter-spacing: 1px;
        text-align: center;
    }

    .header-text p {
        font-size: 0.9em;
        text-align: center;
    }

    nav a {
        margin: 0 8px;
        font-size: 0.8em;
    }

    .home-header h2 {
        font-size: 2em;
    }

    .home-header p {
        font-size: 1.1em;
    }

    .stages-grid {
        gap: 20px;
    }

    .stage-card {
        padding: 25px 20px;
    }

    .section-title {
        font-size: 1.3em;
        margin: 15px 0 20px;
    }

    .bimestre-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .card {
        padding: 15px;
    }

    .bastiao-link {
        font-size: 0.85em;
        padding: 8px;
    }
}

@media (max-width: 480px) {
    .login-box {
        padding: 20px 20px;
    }

    .login-box h1 {
        font-size: 1.3em;
    }

    .login-subtitle {
        font-size: 0.85em;
    }

    .login-logo {
        height: 50px;
        margin-bottom: 15px;
    }

    #password-input {
        padding: 10px;
        font-size: 16px;
    }

    .login-button {
        padding: 10px 12px;
        font-size: 0.9em;
    }

    header {
        padding: 20px 15px;
        border-bottom: 3px solid var(--accent-color);
    }

    .header-container {
        flex-direction: column;
        gap: 10px;
    }

    .header-logo {
        height: 50px;
    }

    .header-text h1 {
        font-size: 1.4em;
        letter-spacing: 1px;
        text-align: center;
    }

    .header-text p {
        text-align: center;
    }

    nav {
        padding: 8px;
    }

    nav a {
        display: inline-block;
        margin: 3px 5px;
        font-size: 0.75em;
    }

    .container {
        padding: 15px;
        margin: 0px auto;
    }

    .home-header h1 {
        font-size: 1.5em;
    }

    .home-header p {
        font-size: 0.95em;
    }

    .stages-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .stage-card {
        padding: 20px 15px;
        border-width: 2px;
    }

    .stage-card h2 {
        font-size: 1.2em;
    }

    .stage-card p {
        font-size: 0.85em;
    }

    .stage-icon {
        height: 50px;
    }

    .section-title {
        font-size: 1.1em;
        padding-left: 10px;
    }

    .intro {
        font-size: 0.9em;
    }

    .section-container {
        font-size: 0.9em;
        margin-top: 30px;
    }

    .card h3 {
        font-size: 1.1em;
    }

    .bastiao-link {
        font-size: 0.8em;
        padding: 8px;
        margin: 6px 0;
    }

    .footer {
        padding: 20px 10px;
        font-size: 0.9em;
        margin-top: 0px;
    }
}