/* ── Como Funciona ───────────────────────────── */
        .ig-how {
            padding: 7rem 0;
            background: #fff;
        }

        .ig-section-badge {
            display: inline-block;
            padding: 0.3rem 1rem;
            background: var(--clr-primary-alpha);
            color: var(--clr-primary-dark);
            border-radius: 9999px;
            font-weight: 700;
            font-size: 0.82rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: 1rem;
        }

        .ig-section-title {
            font-family: var(--font-heading);
            font-size: clamp(2rem, 4vw, 2.8rem);
            font-weight: 800;
            color: var(--clr-heading);
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
        }

        .ig-section-sub {
            font-size: 1.1rem;
            color: var(--clr-text-light);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.7;
        }

        .ig-steps {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
            margin-top: 4rem;
            position: relative;
        }

        /* connector line */
        .ig-steps::before {
            content: '';
            position: absolute;
            top: 56px;
            left: calc(16.66% + 1rem);
            right: calc(16.66% + 1rem);
            height: 2px;
            background: linear-gradient(90deg, var(--clr-primary) 0%, var(--clr-primary-light) 50%, var(--clr-primary) 100%);
            z-index: 0;
        }

        .ig-step {
            background: #fff;
            border-radius: 20px;
            padding: 2.5rem 2rem 2rem;
            border: 1px solid var(--clr-border);
            text-align: center;
            position: relative;
            z-index: 1;
            transition: all 0.3s ease;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.05);
        }

        .ig-step:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 60px rgba(255, 122, 11, 0.15);
            border-color: var(--clr-primary);
        }

        .ig-step-number {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--clr-primary);
            color: #fff;
            font-family: var(--font-heading);
            font-size: 1.6rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.5rem;
            position: relative;
            box-shadow: 0 0 0 6px rgba(255, 122, 11, 0.15);
            transition: all 0.3s;
        }

        .ig-step:hover .ig-step-number {
            box-shadow: 0 0 0 10px rgba(255, 122, 11, 0.2), var(--shadow-glow);
            transform: scale(1.1);
        }

        .ig-step-icon {
            width: 56px;
            height: 56px;
            background: var(--clr-primary-alpha);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.2rem;
            color: var(--clr-primary);
        }

        .ig-step h3 {
            font-family: var(--font-heading);
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--clr-heading);
            margin-bottom: 0.75rem;
        }

        .ig-step p {
            font-size: 0.95rem;
            color: var(--clr-text);
            line-height: 1.7;
        }

        /* ── Responsive ───────────────────────────────── */
        @media (max-width: 992px) {
            .ig-hero-container {
                grid-template-columns: 1fr;
                text-align: center;
            }

            .ig-hero-text .badge {
                margin: 0 auto;
            }

            .ig-hero-subtitle {
                margin: 0 auto 2.5rem;
            }

            .ig-hero-actions {
                justify-content: center;
            }

            .ig-hero-img-wrapper {
                display: none;
            }

            .ig-steps {
                grid-template-columns: 1fr;
            }

            .ig-steps::before {
                display: none;
            }

            .ig-rewards-grid {
                grid-template-columns: 1fr;
            }

            .ig-form-grid {
                grid-template-columns: 1fr;
                gap: 2.5rem;
            }

            .ig-rules-grid {
                grid-template-columns: 1fr;
            }

            .ig-stats-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 640px) {
            .ig-hero {
                padding-top: 120px;
            }

            .ig-stats-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .ig-form-card {
                padding: 2rem 1.5rem;
            }

            .ig-form-row {
                grid-template-columns: 1fr;
            }

            .ig-link-box {
                flex-direction: column;
            }

            .ig-link-input-group {
                width: 100%;
                min-width: unset;
            }
        }