/* ========================================
   ESTILOS APRIMORADOS PARA SEÇÃO DE CURSOS
   ======================================== */

:root {
    --tw-primary: #3082ae;
    --tw-primary-dark: #1a4b8c;
    --tw-secondary: #8b5cf6;
    --tw-accent: #07719E;
    --tw-light: #F5F5F5;
    --tw-dark: #212529;
    --tw-success: #10b981;
    --tw-warning: #f59e0b;
    --tw-danger: #ef4444;
    --tw-gradient-1: linear-gradient(135deg, #3082ae 0%, #1a4b8c 100%);
    --tw-gradient-2: linear-gradient(135deg, #8b5cf6 0%, #6d28d9 100%);
    --tw-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    --tw-shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.15);
    --tw-shadow-hover: 0 25px 50px rgba(0, 0, 0, 0.2);
    --tw-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --tw-transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========== ANIMAÇÕES ========== */

@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fade-in-down {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scale-in {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slide-in-left {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse-slow {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

/* ========== SEÇÃO DE CURSOS ========== */

#courses {
    background: linear-gradient(135deg, #f8f9fa 0%, #fff 100%);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

#courses::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(48, 130, 174, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 1;
}

#courses::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 1;
}

/* ========== FILTROS DE CURSOS ========== */

.courses-filter {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    margin: 40px 0 60px 0;
    flex-wrap: wrap;
    position: relative;
    z-index: 2;
}

.filter-btn {
    padding: 10px 24px;
    border: 2px solid var(--tw-primary);
    background: white;
    color: var(--tw-primary);
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--tw-transition);
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.filter-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--tw-primary);
    transition: var(--tw-transition);
    z-index: -1;
}

.filter-btn:hover,
.filter-btn.active {
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(48, 130, 174, 0.3);
}

.filter-btn:hover::before,
.filter-btn.active::before {
    left: 0;
}

/* ========== GRID DE CURSOS ========== */

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 32px;
    margin: 40px 0;
    position: relative;
    z-index: 2;
}

@media (max-width: 768px) {
    .courses-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

/* ========== CARDS DE CURSOS APRIMORADOS ========== */

.course-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--tw-shadow);
    transition: var(--tw-transition-slow);
    position: relative;
    height: 100%;
    display: flex;
    flex-direction: column;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.course-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--tw-shadow-hover);
}

.course-card-enhanced {
    animation: fade-in-up 0.6s ease-out forwards;
    opacity: 0;
}

.course-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--tw-gradient-2);
    z-index: 10;
}

/* ========== IMAGEM DO CURSO ========== */

.course-img {
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3.5rem;
    color: white;
    position: relative;
    overflow: hidden;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.course-img::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(0, 0, 0, 0.1) 100%);
    pointer-events: none;
}

.course-img i {
    position: relative;
    z-index: 2;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.course-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(255, 255, 255, 0.95);
    color: var(--tw-primary);
    padding: 6px 12px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    backdrop-filter: blur(10px);
    z-index: 5;
}

/* ========== CONTEÚDO DO CURSO ========== */

.course-content {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.course-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--tw-primary);
    margin-bottom: 12px;
    line-height: 1.4;
}

.course-description {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 16px;
    flex-grow: 1;
    min-height: 60px;
}

/* ========== DESTAQUES DO CURSO ========== */

.course-highlights {
    display: flex;
    gap: 16px;
    margin: 16px 0;
    padding: 12px 0;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.highlight-item {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--tw-primary);
    font-weight: 600;
}

.highlight-item i {
    font-size: 1.1rem;
}

/* ========== META DO CURSO ========== */

.course-meta {
    display: flex;
    gap: 16px;
    margin: 12px 0;
    font-size: 0.85rem;
    color: #666;
    flex-wrap: wrap;
}

.course-duration,
.course-type {
    display: flex;
    align-items: center;
    gap: 6px;
}

.course-duration i,
.course-type i {
    color: var(--tw-primary);
    font-size: 0.95rem;
}

/* ========== AÇÕES DO CURSO ========== */

.course-actions {
    display: flex;
    gap: 10px;
    margin-top: auto;
    padding-top: 16px;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
}

.course-details-btn,
.course-request-btn {
    flex: 1;
    padding: 10px 12px;
    font-size: 0.85rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--tw-transition);
    text-align: center;
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.course-details-btn {
    background: var(--tw-primary);
    color: white;
}

.course-details-btn:hover {
    background: var(--tw-primary-dark);
    transform: scale(1.05);
}

.course-request-btn {
    background: var(--tw-secondary);
    color: white;
}

.course-request-btn:hover {
    background: #6d28d9;
    transform: scale(1.05);
}

/* ========== MODAL DE CURSOS ========== */

#course-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    animation: fade-in-up 0.3s ease-out;
}

.course-modal-content {
    background: white;
    border-radius: 16px;
    max-width: 800px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    animation: scale-in 0.3s ease-out;
}

.course-modal-header {
    padding: 32px;
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.course-modal-header h3 {
    font-size: 1.8rem;
    margin: 0;
}

.course-modal-header .badge {
    background: rgba(255, 255, 255, 0.3);
    color: white;
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
}

.course-modal-body {
    padding: 32px;
}

.course-full-description {
    font-size: 1rem;
    line-height: 1.8;
    color: #666;
    margin-bottom: 24px;
}

.course-details-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin: 24px 0;
}

.detail-box {
    background: var(--tw-light);
    padding: 20px;
    border-radius: 12px;
    border-left: 4px solid var(--tw-primary);
}

.detail-box h4 {
    font-size: 0.95rem;
    color: var(--tw-primary);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.detail-box p {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--tw-dark);
}

.course-curriculum,
.course-requirements,
.course-outcomes {
    margin: 24px 0;
}

.course-curriculum h4,
.course-requirements h4,
.course-outcomes h4,
.course-career h4 {
    font-size: 1.1rem;
    color: var(--tw-primary);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.course-curriculum ul,
.course-requirements ul,
.course-outcomes ul {
    list-style: none;
    margin-left: 0;
}

.course-curriculum li,
.course-requirements li,
.course-outcomes li {
    padding: 8px 0 8px 24px;
    position: relative;
    color: #666;
}

.course-curriculum li::before,
.course-requirements li::before,
.course-outcomes li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--tw-success);
    font-weight: bold;
    font-size: 1.2rem;
}

.course-career {
    background: linear-gradient(135deg, rgba(48, 130, 174, 0.05) 0%, rgba(139, 92, 246, 0.05) 100%);
    padding: 20px;
    border-radius: 12px;
    margin: 24px 0;
    border-left: 4px solid var(--tw-secondary);
}

.course-career p {
    color: #666;
    line-height: 1.8;
}

.course-modal-footer {
    padding: 24px 32px;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.btn-large {
    flex: 1;
    padding: 12px 24px;
    min-width: 200px;
}

#enroll-btn,
#schedule-consultation {
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--tw-transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

#enroll-btn {
    background: var(--tw-primary);
    color: white;
}

#enroll-btn:hover {
    background: var(--tw-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--tw-shadow);
}

#schedule-consultation {
    background: var(--tw-secondary);
    color: white;
}

#schedule-consultation:hover {
    background: #6d28d9;
    transform: translateY(-2px);
    box-shadow: var(--tw-shadow);
}

/* ========== MEDIA QUERIES ========== */

@media (max-width: 768px) {
    .course-modal-content {
        width: 95%;
        max-height: 95vh;
    }

    .course-modal-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
        padding: 24px;
    }

    .course-details-grid {
        grid-template-columns: 1fr;
    }

    .course-modal-body {
        padding: 20px;
    }

    .course-modal-footer {
        flex-direction: column;
    }

    .btn-large {
        min-width: 100%;
    }

    .course-actions {
        flex-direction: column;
    }

    .course-highlights {
        flex-direction: column;
    }
}

/* ========== ESTADOS DE CARREGAMENTO ========== */

.loading-spinner {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    z-index: 3000;
    justify-content: center;
    align-items: center;
}

.loading-spinner.active {
    display: flex;
}

.spinner {
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid white;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

/* ========== TRANSIÇÕES SUAVES ========== */

.fade-in-up {
    animation: fade-in-up 0.6s ease-out;
}

.animated {
    animation: fade-in-up 0.6s ease-out;
}