/* ============================================================
   CASES PAGE - ENHANCED DESIGN
   ============================================================ */

.logo {
    text-decoration: none;
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--text);
}

.logo span {
    color: var(--purple);
}

.nav-links a.active {
    color: var(--purple);
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.cases-hero {
    padding: 140px 0 80px;
    text-align: center;
    background: linear-gradient(135deg, rgba(138, 43, 226, 0.08) 0%, rgba(0, 212, 255, 0.05) 100%);
    border-bottom: 1px solid var(--border);
}

.cases-hero .section-label {
    font-size: 0.72rem;
    color: var(--purple);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 16px;
    display: block;
}

.cases-hero h1 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 7vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin: 16px 0 20px;
    letter-spacing: -1.5px;
}

.gradient-text {
    background: linear-gradient(90deg, var(--purple), var(--cyan));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.cases-hero p {
    font-size: 1.1rem;
    color: var(--muted);
    max-width: 500px;
    margin: 0 auto;
    line-height: 1.7;
    font-weight: 300;
}

/* ============================================================
   FILTER SECTION
   ============================================================ */
.cases-filter {
    padding: 60px 0;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
}

.filter-btn {
    padding: 10px 24px;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.03);
    color: var(--muted);
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: var(--font-body);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--purple);
    border-color: var(--purple);
    color: white;
    transform: translateY(-2px);
}

/* ============================================================
   GRID SECTION
   ============================================================ */
.cases-grid-section {
    padding: 20px 0 100px;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
    grid-auto-rows: auto;
}

/* Cria variação de tamanhos para grid mais dinâmico */
.case-card:nth-child(3n + 1) {
    grid-column: span 1;
}

.case-card:nth-child(3n + 2) {
    grid-column: span 1;
}

.case-card:nth-child(3n) {
    grid-column: span 1;
}

/* ============================================================
   CASE CARDS
   ============================================================ */
.case-card {
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.23, 1, 0.320, 1), opacity 0.3s ease;
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.case-card::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(138, 43, 226, 0.5), transparent);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 1;
}

.case-card:hover::before {
    opacity: 1;
}

.case-card:hover {
    transform: translateY(-12px);
    border-color: rgba(138, 43, 226, 0.5);
    box-shadow: 0 20px 60px rgba(138, 43, 226, 0.15), 0 8px 32px rgba(0, 0, 0, 0.3);
}

.case-thumb {
    position: relative;
    width: 100%;
    aspect-ratio: 9 / 12;
    overflow: hidden;
    background: linear-gradient(135deg, var(--bg-3) 0%, #0d0d0d 100%);
    flex-shrink: 0;
}

.case-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
    display: block;
    transition: transform 0.5s cubic-bezier(0.23, 1, 0.320, 1);
}

.case-thumb--preview {
    aspect-ratio: 16 / 10;
    background: #050505;
}

.case-thumb--preview img {
    object-fit: contain;
}

.case-card:hover .case-thumb img {
    transform: scale(1.05);
}

.case-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(138, 43, 226, 0.4) 0%, rgba(0, 212, 255, 0.2) 100%);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.23, 1, 0.320, 1);
    z-index: 2;
}

.case-card:hover .case-overlay {
    opacity: 1;
}

.case-overlay .btn-primary {
    transform: translateY(20px);
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.23, 1, 0.320, 1);
}

.case-card:hover .case-overlay .btn-primary {
    transform: translateY(0);
    opacity: 1;
}

/* ============================================================
   CASE INFO
   ============================================================ */
.case-info {
    padding: 32px 28px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.case-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}

.case-tag {
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--cyan);
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.2);
    padding: 4px 12px;
    border-radius: 100px;
    transition: all 0.3s ease;
}

.case-tag:hover {
    background: rgba(0, 212, 255, 0.2);
    border-color: rgba(0, 212, 255, 0.4);
}

.case-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 12px;
    line-height: 1.2;
}

.case-desc {
    font-size: 0.9rem;
    color: var(--muted);
    line-height: 1.8;
    margin-bottom: 24px;
    flex-grow: 1;
    font-weight: 300;
}

.case-link {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--cyan);
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    width: fit-content;
}

.case-link:hover {
    color: var(--purple);
    gap: 12px;
}

/* ============================================================
   CTA FINAL
   ============================================================ */
.cases-cta {
    padding: 100px 0;
    text-align: center;
    background: linear-gradient(135deg, rgba(138, 43, 226, 0.1) 0%, rgba(0, 212, 255, 0.08) 100%);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.cases-cta h2 {
    font-family: var(--font-display);
    font-size: clamp(1.6rem, 5vw, 2.8rem);
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.cases-cta p {
    color: var(--muted);
    margin-bottom: 40px;
    font-size: 1.05rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 300;
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.case-card {
    animation: slideInUp 0.6s ease-out backwards;
}

.case-card:nth-child(1) { animation-delay: 0.1s; }
.case-card:nth-child(2) { animation-delay: 0.2s; }
.case-card:nth-child(3) { animation-delay: 0.3s; }

/* ============================================================
   RESPONSIVENESS
   ============================================================ */
@media (max-width: 768px) {
    .cases-hero {
        padding: 100px 0 60px;
    }

    .cases-hero h1 {
        margin: 12px 0 16px;
    }

    .cases-filter {
        padding: 40px 0;
    }

    .cases-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    /* Removido: overlay sempre visível no mobile */
    /* .case-overlay {
        opacity: 1;
        background: rgba(8, 8, 8, 0.7);
        backdrop-filter: blur(8px);
    } */

    /* Overlay só aparece no hover/touch */
    .case-card:hover .case-overlay,
    .case-card:active .case-overlay {
        opacity: 1;
        background: rgba(8, 8, 8, 0.7);
        backdrop-filter: blur(8px);
    }

    .case-overlay .btn-primary {
        transform: translateY(0);
        opacity: 1;
    }

    .case-info {
        padding: 24px 20px;
    }

    .case-title {
        font-size: 1.1rem;
    }

    .case-desc {
        font-size: 0.85rem;
        margin-bottom: 16px;
    }

    .cases-cta {
        padding: 80px 0;
    }

    .cases-cta h2 {
        font-size: clamp(1.4rem, 4vw, 2rem);
    }
}

@media (max-width: 480px) {
    .cases-hero {
        padding: 80px 0 40px;
    }

    .cases-filter {
        padding: 30px 0;
        gap: 8px;
    }

    .filter-btn {
        padding: 8px 16px;
        font-size: 0.85rem;
    }

    .case-thumb {
        aspect-ratio: 3 / 4;
    }

    .cases-cta {
        padding: 60px 0;
    }

    .cases-cta h2 {
        margin-bottom: 12px;
    }

    .cases-cta p {
        margin-bottom: 30px;
        font-size: 0.95rem;
    }
}

/* Header sempre sólido na página de cases */
header {
    background: rgba(8, 8, 8, 0.95);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    padding: 16px 0 !important;
}