/* General Body Styles */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #fff;
    color: #222;
}

.container {
    width: 80%;
    margin: auto;
    overflow: hidden;
    padding: 0 20px;
    max-width: 900px;
}

/* Header */
header {
    background: #8348dc;
    color: #fff;
    padding: 2rem 0;
    text-align: center;
    border-bottom: 5px solid #6a2ab8;
}

header h1 {
    margin: 0;
    font-size: 2.5rem;
    font-weight: bold;
    letter-spacing: 1px;
}

header h2 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 400;
    letter-spacing: 0.5px;
}

header .event {
    font-size: 1.2rem;
    margin-top: 10px;
}

/* Main Content Sections */
main section {
    padding: 40px 0;
    border-bottom: 1px solid #eee;
    background: #fff;
}

main h2 {
    text-align: center;
    color: #8348dc;
    margin-bottom: 30px;
    font-size: 2rem;
    font-weight: bold;
}

/* Topics Section */
#topics ul {
    list-style: none;
    padding: 0;
}

#topics ul li {
    background: #f4f4f4;
    margin-bottom: 10px;
    padding: 15px;
    border-left: 5px solid #8348dc;
    color: #222;
}


#logo_header {
    width: 15vw;
    height: 27vh;
    transition: transform 0.3s ease;
    cursor: pointer; 
}

#logo_header:hover {
    transform: scale(1.05); 
}
#infos{
    width: 30vw;
    height: 50vh;
}

#logo {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    height: 50vh;
}
#logo_header, #infos, #logo img {
    width: 90vw;
    max-width: 320px;
    height: auto;
    margin: 0 auto;
    display: block;
}
#logos{
    border-bottom: 5px solid #6a2ab8;
}

/* Activities Section */
.schedule {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
}

.period {
    background: #f9f9f9;
    padding: 20px;
    border-radius: 8px;
    width: 48%;
    box-shadow: 0 2px 4px rgba(0,0,0,0.06);
    border: 1px solid #eee;
    min-width: 260px;
    box-sizing: border-box;
}

.period h3 {
    color: #8348dc;
    border-bottom: 2px solid #eee;
    padding-bottom: 10px;
    font-weight: bold;
}

/* Submissions Section */
#submissions {
    text-align: center;
}

#submissions-flex {
    display: flex;
    gap: 32px;
    justify-content: center;
    align-items: flex-start;
    margin: 32px 0 0 0;
}

.submission-checklist, .submission-evaluation {
    flex: 1 1 340px;
    background: #f9f9f9;
    border: 1px solid #eee;
    border-radius: 8px;
    padding: 24px 20px 20px 20px;
    box-shadow: 0 2px 4px rgba(131,72,220,0.06);
    min-width: 280px;
    max-width: 480px;
    margin-bottom: 24px;
    text-align: left;
}

.submission-checklist h3, .submission-evaluation h3 {
    color: #8348dc;
    margin-top: 0;
    font-size: 1.2rem;
    font-weight: bold;
}

#submissions ul {
    list-style: none;
    padding: 0;
    margin: 0 auto 20px auto;
    max-width: 700px;
    text-align: left;
}

#submissions ul li {
    background: #f4f4f4;
    margin-bottom: 10px;
    padding: 15px;
    border-left: 5px solid #8348dc;
    color: #222;
    border-radius: 6px;
}

        /* Topics Section */
#topics ul {
    list-style: none;
    padding: 0;
}

#topics ul li {
    background: #f4f4f4;
    margin-bottom: 10px;
    padding: 15px;
    border-left: 5px solid #8348dc;
    color: #222;
}

.cta-button {
    display: inline-block;
    background: #8348dc;
    color: #fff;
    padding: 15px 30px;
    text-decoration: none;
    border-radius: 5px;
    margin-top: 20px;
    font-size: 1.1rem;
    font-weight: bold;
    transition: background-color 0.3s ease;
    box-shadow: 0 2px 4px rgba(131,72,220,0.08);
}

.cta-button:hover {
    background: #6a2ab8;
}

/* Dates Section */
#dates ul {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: 1.1rem;
}

#dates ul li {
    margin-bottom: 10px;
    width: 100%;
    max-width: 600px;
    text-align: left;
    background: #f4f4f4;
    padding: 12px 18px;
    border-radius: 6px;
    border-left: 5px solid #8348dc;
    color: #222;
}

/* Coordinators Section */
.coordinator-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
}

.coordinator {
    background: #f9f9f9;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    width: 250px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.06);
    border: 1px solid #eee;
}

.coordinator img {
    border-radius: 50%;
    width: 120px;
    height: 120px;
    object-fit: cover;
    margin-bottom: 15px;
    border: 3px solid #8348dc;
}

.coordinator h3 {
    margin-top: 0;
    color: #222;
    font-weight: bold;
}

/* Footer */
footer {
    background: #222;
    color: #fff;
    text-align: center;
    padding: 20px 0;
    margin-top: 20px;
    font-size: 1rem;
}

/* Responsive */
@media(max-width: 768px) {
    .container {
        width: 90%;
    }

    header h1 {
        font-size: 2rem;
    }

    .schedule {
        flex-direction: column;
    }

    .period {
        width: 100%;
        margin-bottom: 20px;
    }
}

@media(max-width: 900px) {
    .schedule {
        flex-direction: column;
        gap: 20px;
    }
    .period {
        width: 100%;
        margin-bottom: 0;
        min-width: unset;
    }
    #submissions-flex {
        flex-direction: column;
        gap: 0;
    }
    .submission-checklist, .submission-evaluation {
        max-width: 100%;
        margin-bottom: 24px;
    }
}

/* Barra de progresso de rolagem */
#progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 5px;
    background: #8348dc;
    z-index: 2000;
    transition: width 0.2s ease;
}

/* Skip Link for Accessibility */
.skip-link {
    position: absolute;
    left: -999px;
    top: auto;
    width: 1px;
    height: 1px;
    overflow: hidden;
    z-index: 1000;
    background: #fff;
    color: #8348dc;
    padding: 8px 16px;
    border-radius: 4px;
    font-weight: bold;
    border: 2px solid #8348dc;
    transition: left 0.2s;
}
.skip-link:focus {
    left: 16px;
    top: 16px;
    width: auto;
    height: auto;
    outline: none;
    box-shadow: 0 2px 8px rgba(131,72,220,0.15);
}

/* Back to Top Button */
#back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    background: #8348dc;
    color: #fff;
    border: none;
    border-radius: 50%;
    width: 48px;
    height: 48px;
    font-size: 2rem;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(131,72,220,0.15);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1001;
    transition: background 0.2s, opacity 0.2s;
}
#back-to-top:focus {
    outline: 3px solid #222;
    background: #6a2ab8;
}
#back-to-top:hover {
    background: #6a2ab8;
}

@media (max-width: 600px) {
    #back-to-top {
        bottom: 16px;
        right: 16px;
        width: 40px;
        height: 40px;
        font-size: 1.5rem;
    }
    #logo {
        flex-direction: column;
        gap: 8px;
        height: auto;
        align-items: center;
    }
    #logo_header, #infos, #logo img {
        width: 60vw;
        max-width: 200px;
        height: auto;
        margin: 0 auto;
        display: block;
    }
    header h1 {
        font-size: 1.5rem;
        padding: 0 8px;
    }
    header h2 {
        font-size: 1.1rem;
        padding: 0 8px;
    }
    header .event {
        font-size: 1rem;
        padding: 0 8px;
    }
    main h2 {
        font-size: 1.2rem;
        margin-bottom: 18px;
        padding: 0 8px;
    }
    .container {
        width: 98%;
        padding: 0 4px;
    }
    main section {
        padding: 18px 0;
    }
    #topics ul li,
    #submissions ul li,
    #dates ul li {
        padding: 10px;
        font-size: 0.98rem;
    }
    .cta-button {
        padding: 10px 18px;
        font-size: 1rem;
    }
    .schedule,
    #submissions-flex,
    .coordinator-list {
        flex-direction: column;
        gap: 10px;
        align-items: center;
    }
    .period,
    .submission-checklist,
    .submission-evaluation,
    .coordinator {
        width: 100%;
        max-width: 98vw;
    }
}