/* ============================================================
   study-group.css — Estilos para páginas de Grupos de Estudo
   ============================================================ */

.main-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
    font-family: 'Roboto', sans-serif;
    color: #333;
}

/* ----------------------------------------------------------
   BANNER
---------------------------------------------------------- */
.sg-intro {
    margin-bottom: 60px;
}

.sg-banner {
    position: relative;
    width: 100%;
    height: 380px;
    border-radius: 20px;
    overflow: hidden;
    background: linear-gradient(135deg, #0a192f 0%, #1a3a5c 60%, #0d2137 100%);
    display: flex;
    align-items: flex-end;
}

.sg-banner-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 70% 40%, rgba(100, 180, 255, 0.08) 0%, transparent 70%);
}

.sg-banner-content {
    position: relative;
    z-index: 2;
    padding: 50px;
}

.sg-tag {
    display: inline-block;
    font-family: 'Google Sans', sans-serif;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: #64b4ff;
    border: 1px solid rgba(100, 180, 255, 0.4);
    padding: 4px 12px;
    border-radius: 20px;
    margin-bottom: 16px;
}

.sg-banner-content h1 {
    font-family: 'Fraunces', serif;
    font-size: 2.8rem;
    font-weight: 300;
    color: #ffffff;
    margin: 0 0 12px 0;
    line-height: 1.15;
}

.sg-banner-content p {
    font-family: 'Google Sans', sans-serif;
    color: rgba(255, 255, 255, 0.65);
    font-size: 1rem;
    max-width: 520px;
    margin: 0;
}

/* ----------------------------------------------------------
   SOBRE O GRUPO
---------------------------------------------------------- */
.sg-about {
    margin-bottom: 70px;
}

.sg-about-grid {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 50px;
    align-items: start;
}

.sg-about-text h2 {
    font-family: 'Fraunces', serif;
    font-size: 2rem;
    font-weight: 300;
    color: #2c3e50;
    margin: 0 0 20px 0;
}

.sg-about-text p {
    font-family: 'Google Sans', sans-serif;
    line-height: 1.7;
    margin-bottom: 16px;
    text-align: justify;
}

.sg-meta-card {
    background: #f8faff;
    border: 1px solid #e1e8f0;
    border-radius: 16px;
    padding: 28px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.sg-meta-item {
    display: flex;
    flex-direction: column;
    gap: 3px;
    border-bottom: 1px dashed #e0e0e0;
    padding-bottom: 14px;
}

.sg-meta-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.sg-meta-label {
    font-family: 'Google Sans', sans-serif;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #999;
}

.sg-meta-value {
    font-family: 'Google Sans', sans-serif;
    font-size: 0.95rem;
    font-weight: 500;
    color: #2c3e50;
}

.sg-status-active {
    color: #27ae60;
}

/* ----------------------------------------------------------
   TÓPICOS
---------------------------------------------------------- */
.sg-topics {
    margin-bottom: 70px;
}

.sg-topics h2,
.sg-resources h2 {
    font-family: 'Fraunces', serif;
    font-size: 2rem;
    font-weight: 300;
    color: #2c3e50;
    margin: 0 0 8px 0;
}

.sg-section-sub {
    font-family: 'Google Sans', sans-serif;
    color: #888;
    margin: 0 0 36px 0;
    font-size: 0.95rem;
}

.sg-topics-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.sg-topic-card {
    background: #fff;
    border: 1px solid #eaeaea;
    border-radius: 16px;
    padding: 30px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.sg-topic-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.07);
}

.sg-topic-icon {
    font-size: 1.8rem;
    margin-bottom: 14px;
    color: #1a3a5c;
    font-family: 'Georgia', serif;
}

.sg-topic-card h3 {
    font-family: 'Fraunces', serif;
    font-size: 1.1rem;
    color: #2c3e50;
    margin: 0 0 10px 0;
}

.sg-topic-card p {
    font-family: 'Google Sans', sans-serif;
    font-size: 0.9rem;
    color: #666;
    line-height: 1.6;
    margin: 0;
}

/* ----------------------------------------------------------
   REFERÊNCIAS
---------------------------------------------------------- */
.sg-resources {
    margin-bottom: 70px;
}

.sg-ref-list {
    display: flex;
    flex-direction: column;
    border-top: 1px solid #eee;
    border-bottom: 1px solid #eee;
}

.sg-ref-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 18px 10px;
    border-bottom: 1px solid #f4f4f4;
    transition: background 0.2s;
}

.sg-ref-item:last-child {
    border-bottom: none;
}

.sg-ref-item:hover {
    background: #fafafa;
}

.sg-ref-icon {
    font-size: 1.4rem;
    flex-shrink: 0;
}

.sg-ref-info {
    display: flex;
    flex-direction: column;
    gap: 3px;
    font-family: 'Google Sans', sans-serif;
}

.sg-ref-info strong {
    color: #2c3e50;
    font-size: 0.95rem;
}

.sg-ref-info span {
    color: #888;
    font-size: 0.85rem;
}

/* ----------------------------------------------------------
   CTA
---------------------------------------------------------- */
.sg-cta {
    margin-bottom: 80px;
}

.sg-cta-box {
    background: linear-gradient(135deg, #0a192f, #1a3a5c);
    border-radius: 20px;
    padding: 60px 50px;
    text-align: center;
}

.sg-cta-box h2 {
    font-family: 'Fraunces', serif;
    font-size: 2rem;
    font-weight: 300;
    color: #fff;
    margin: 0 0 14px 0;
}

.sg-cta-box p {
    font-family: 'Google Sans', sans-serif;
    color: rgba(255, 255, 255, 0.65);
    max-width: 500px;
    margin: 0 auto 30px auto;
    line-height: 1.6;
}

.sg-cta-btn {
    display: inline-block;
    text-decoration: none;
    background: #fff;
    color: #0a192f;
    font-family: 'Google Sans', sans-serif;
    font-weight: 700;
    font-size: 0.9rem;
    padding: 14px 36px;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.sg-cta-btn:hover {
    background: #64b4ff;
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

/* ----------------------------------------------------------
   RESPONSIVIDADE
---------------------------------------------------------- */
@media (max-width: 768px) {
    .sg-banner { height: 300px; }
    .sg-banner-content { padding: 30px; }
    .sg-banner-content h1 { font-size: 1.9rem; }

    .sg-about-grid {
        grid-template-columns: 1fr;
    }

    .sg-topics-grid {
        grid-template-columns: 1fr;
    }

    .sg-cta-box {
        padding: 40px 24px;
    }
}