/* ============================================
   BAMBUÍ TECH - BRAND GRADIENT SYSTEM
   Baseado no degradê da logo oficial
   Cyan #00D4FF → Azul #1E3A8A
   ============================================ */

:root {
    --gradient-brand: linear-gradient(135deg, #00D4FF 0%, #1E3A8A 100%);
    --gradient-brand-soft: linear-gradient(135deg, #00D4FF 0%, #60A5FA 50%, #1E3A8A 100%);
}

/* ===== TÍTULOS COM DEGRADÊ ===== */
section h2 {
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

/* Classe reutilizável para aplicar degradê em qualquer elemento */
.gradient-title {
    background: var(--gradient-brand) !important;
    -webkit-background-clip: text !important;
    -webkit-text-fill-color: transparent !important;
    background-clip: text !important;
    display: inline-block;
}

/* Título animado (opcional) */
.gradient-animate {
    background: var(--gradient-brand-soft);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% auto;
    animation: gradient-shift 4s ease infinite;
}

@keyframes gradient-shift {

    0%,
    100% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }
}

/* ===== CARDS DE PORTFÓLIO - BORDA SUPERIOR ===== */
.portfolio-card {
    position: relative;
}

.portfolio-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-brand);
    border-radius: 20px 20px 0 0;
    z-index: 1;
}

/* Efeito shimmer ao hover */
.portfolio-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.6), transparent);
    z-index: 2;
    border-radius: 20px 20px 0 0;
    transition: left 0.8s;
}

.portfolio-card:hover::after {
    left: 100%;
}

/* ===== BOTÃO COM DEGRADÊ (OPCIONAL - FUTURO) ===== */
.btn-gradient {
    background: var(--gradient-brand);
    color: #ffffff;
    padding: 0.875rem 2rem;
    border-radius: 9999px;
    font-weight: 700;
    border: none;
    cursor: pointer;
    box-shadow: 0 8px 20px rgba(0, 212, 255, 0.3);
    transition: all 0.3s ease;
}

.btn-gradient:hover {
    box-shadow: 0 12px 30px rgba(0, 212, 255, 0.5);
    transform: translateY(-2px);
}