/* Estilos Base */
body { font-family: 'Inter', sans-serif; background-color: #f0f4f8; color: #1e293b; transition: background-color 0.3s ease, color 0.3s ease; }
.action-btn { width: 40px; height: 40px; border-radius: 50%; background-color: #e2e8f0; color: #475569; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: all 0.2s ease-in-out; outline-offset: 4px; }
.action-btn:hover { transform: scale(1.1); background-color: #cbd5e1; }
.action-btn:focus-visible { outline: 2px solid #3b82f6; }

/* Animações de pulse - ... (sem alterações aqui) ... */
@keyframes pulse-yellow { 0% { box-shadow: 0 0 0 0 rgba(250, 204, 21, 0.7); } 70% { box-shadow: 0 0 0 10px rgba(250, 204, 21, 0); } 100% { box-shadow: 0 0 0 0 rgba(250, 204, 21, 0); } }
@keyframes pulse-gray { 0% { box-shadow: 0 0 0 0 rgba(156, 163, 175, 0.7); } 70% { box-shadow: 0 0 0 10px rgba(156, 163, 175, 0); } 100% { box-shadow: 0 0 0 0 rgba(156, 163, 175, 0); } }
@keyframes pulse-fuchsia { 0% { box-shadow: 0 0 0 0 rgba(232, 121, 249, 0.7); } 70% { box-shadow: 0 0 0 10px rgba(232, 121, 249, 0); } 100% { box-shadow: 0 0 0 0 rgba(232, 121, 249, 0); } }
@keyframes pulse-amber { 0% { box-shadow: 0 0 0 0 rgba(251, 191, 36, 0.7); } 70% { box-shadow: 0 0 0 10px rgba(251, 191, 36, 0); } 100% { box-shadow: 0 0 0 0 rgba(251, 191, 36, 0); } }
@keyframes pulse-orange { 0% { box-shadow: 0 0 0 0 rgba(249, 115, 22, 0.7); } 70% { box-shadow: 0 0 0 10px rgba(249, 115, 22, 0); } 100% { box-shadow: 0 0 0 0 rgba(249, 115, 22, 0); } }

/* Estilos Dark Mode */
body.dark-mode { background-color: #0d1117; color: #c9d1d9; }
body.dark-mode .bg-white { background-color: #161b22 !important; }
body.dark-mode .text-gray-800, body.dark-mode .text-slate-700, body.dark-mode .text-gray-700, body.dark-mode .text-gray-600, body.dark-mode .text-slate-600 { color: #c9d1d9; }
body.dark-mode .border-gray-200, body.dark-mode .border-gray-300 { border-color: #30363d; }
body.dark-mode .action-btn { background-color: #21262d; color: #c9d1d9; }
body.dark-mode .action-btn:hover { background-color: #30363d; }

/* v2.1: Classes de texto específicas para o modal de ajuda para garantir contraste */
.help-modal-title { color: #1f2937; }
body.dark-mode .help-modal-title { color: #e5e7eb; }
.help-modal-text { color: #4b5563; }
body.dark-mode .help-modal-text { color: #9ca3af; }
.help-modal-icon-bg { background-color: #f3f4f6; }
body.dark-mode .help-modal-icon-bg { background-color: #1f2937; }
.help-modal-legend-bg { background-color: #f9fafb; }
body.dark-mode .help-modal-legend-bg { background-color: #1f2937; }


/* Estilos e transições dos cards de disciplina */
.card { transition: transform 0.2s ease-in-out, box-shadow 0.3s ease-in-out, border-color 0.3s ease-in-out, background-color 0.3s, color 0.3s, opacity 0.3s; cursor: pointer; min-height: 45px; display: flex; flex-direction: column; justify-content: center; align-items: flex-start; text-align: left; position: relative; overflow: hidden; outline: none; z-index: 1; }
.card:focus-visible { box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.7); transform: translateY(-2px); }

/* Classes de Destaque para Interação */
.highlight-base { transform: scale(1.05); z-index: 10; }
.highlight-hover { background-color: #fef08a !important; border-color: #facc15 !important; color: #713f12 !important; animation: pulse-yellow 2s infinite; }
.highlight-prereq { background-color: #d1d5db !important; border-color: #9ca3af !important; color: #1f2937 !important; animation: pulse-gray 2s infinite; }
.highlight-coreq { background-color: #f0abfc !important; border-color: #e879f9 !important; color: #581c87 !important; animation: pulse-fuchsia 2s infinite; }
.highlight-successor-l1 { background-color: #fcd34d !important; border-color: #fbbf24 !important; color: #78350f !important; animation: pulse-amber 2s infinite; }
.highlight-successor-l2 { background-color: #fb923c !important; border-color: #f97316 !important; color: #431407 !important; animation: pulse-orange 2s infinite; }
/* Classes de Destaque (Dark Mode) */
body.dark-mode .highlight-hover { background-color: rgba(250, 204, 21, 0.2) !important; border-color: #facc15 !important; color: #fef08a !important; }
body.dark-mode .highlight-prereq { background-color: #4b5563 !important; border-color: #6b7280 !important; color: #e5e7eb !important; }
body.dark-mode .highlight-coreq { background-color: rgba(232, 121, 249, 0.25) !important; border-color: #e879f9 !important; color: #f0abfc !important; }
body.dark-mode .highlight-successor-l1 { background-color: rgba(251, 191, 36, 0.25) !important; border-color: #fcd34d !important; color: #fde68a !important; }
body.dark-mode .highlight-successor-l2 { background-color: rgba(249, 115, 22, 0.25) !important; border-color: #fb923c !important; color: #fed7aa !important; }

/* Cores da Legenda de Dependências (Modo Claro) */
.legend-prereq { background-color: #d1d5db; border-color: #9ca3af; }
.legend-coreq { background-color: #f0abfc; border-color: #e879f9; }
.legend-successor-l1 { background-color: #fcd34d; border-color: #fbbf24; }
.legend-successor-l2 { background-color: #fb923c; border-color: #f97316; }
/* Cores da Legenda de Dependências (Modo Escuro) */
body.dark-mode .legend-prereq { background-color: #4b5563; border-color: #6b7280; }
body.dark-mode .legend-coreq { background-color: #a21caf; border-color: #e879f9; }
body.dark-mode .legend-successor-l1 { background-color: #b45309; border-color: #fcd34d; }
body.dark-mode .legend-successor-l2 { background-color: #9a3412; border-color: #fb923c; }


/* Estilos das Linhas de Conexão (SVG) */
#svg-overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; pointer-events: none; z-index: 5; }
.connection-line { stroke-width: 2.5; fill: none; stroke-dasharray: 8; animation: dash 40s linear infinite; }
.line-prereq { stroke: #6b7280; }
.line-coreq { stroke: #c026d3; }
.line-successor-l1 { stroke: #d97706; }
.line-successor-l2 { stroke: #ea580c; }
body.dark-mode .line-prereq { stroke: #9ca3af; }
body.dark-mode .line-coreq { stroke: #e879f9; }
body.dark-mode .line-successor-l1 { stroke: #fbbf24; }
body.dark-mode .line-successor-l2 { stroke: #fb923c; }
@keyframes dash { to { stroke-dashoffset: 1000; } }

/* Estilo do botão de linhas ativo */
.action-btn.active { background-color: #dbeafe; color: #1e40af; }
body.dark-mode .action-btn.active { background-color: #1e3a8a; color: #93c5fd; }
/* Classe para esconder as linhas */
.lines-hidden #svg-overlay { display: none; }

/* Adicionado para diferenciar disciplinas optativas */
.border-dashed {
    border-style: dashed;
}

/* --- ESTILOS PARA RESPONSIVIDADE --- */

/* Por padrão (telas de tablet para baixo) */
.card-full-name, .period-full-title {
    display: none;
}
.card-short-name, .period-short-title {
    display: inline;
}
.card h3 {
    padding-top: 8px; /* Ajuste 2: Desloca a sigla para baixo */
}

/* Em telas de desktop (largas) */
@media (min-width: 1024px) {
    .card {
        align-items: left; /* Alinha o texto à esquerda em telas grandes */
    }
    .card-full-name, .period-full-title {
        display: inline;
    }
    .card-short-name, .period-short-title {
        display: none;
    }
    .card h3 {
        padding-top: 4px; /* Remove o deslocamento em telas grandes */
    }
    
}

/* Em telas de celular (pequenas) */
@media (max-width: 767px) {
    .card {
        min-height: 80px;
        align-items: center;
    }
    .card h3 {
        writing-mode: vertical-rl;
        transform: rotate(180deg);
        text-align: center;
        margin: 0;
        padding: 0; /* Remove o padding extra na vertical */
    }
    /* Ajuste 3: Esconde o badge de CH em telas pequenas */
    .card-ch-badge {
        display: none;
    }
}