/* =================================================================
   Phase 2: Portfolio Card Enhancements
   3D hover effects, better metrics display, modal overlays
   ================================================================= */

/* ===== ENHANCED PORTFOLIO GRID ===== */

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

/* ===== PORTFOLIO ITEM WITH 3D EFFECTS ===== */

.portfolio-item {
    position: relative;
    background: var(--card-bg);
    border-radius: 24px;
    overflow: hidden;
    border: 2px solid var(--border-primary);
    transform-style: preserve-3d;
    perspective: 1000px;
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
}

.portfolio-item:hover {
    transform: translateY(-16px) rotateX(5deg) rotateY(-5deg);
    box-shadow:
        0 30px 60px rgba(0, 0, 0, 0.3),
        0 0 0 1px var(--accent-primary);
    border-color: var(--accent-primary);
}

/* ===== PORTFOLIO IMAGE WITH OVERLAY ===== */

.portfolio-image {
    position: relative;
    height: 280px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--strategy-bg), var(--platform-bg));
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    filter: brightness(1.15) contrast(0.95) saturate(1.1);
}

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.15) rotate(2deg);
}

/* Gradient overlay - lighter and more friendly */
.portfolio-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        180deg,
        rgba(255, 255, 255, 0.1) 0%,
        rgba(0, 0, 0, 0.1) 50%,
        rgba(0, 0, 0, 0.3) 100%
    );
    z-index: 1;
    transition: opacity 0.3s ease;
}

.portfolio-item:hover .portfolio-image::before {
    opacity: 0.6;
}

/* ===== PORTFOLIO OVERLAY - SUBTLE HIGHLIGHT ===== */

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(245, 128, 78, 0.15) 0%,
        rgba(255, 107, 53, 0.15) 100%
    );
    border: 3px solid transparent;
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 2;
    pointer-events: none;
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
    border-color: var(--accent-primary);
    box-shadow: inset 0 0 60px rgba(245, 128, 78, 0.2);
}

.portfolio-links {
    display: flex;
    gap: 1rem;
}

.portfolio-link {
    width: 50px;
    height: 50px;
    background: white;
    color: var(--accent-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    transition: all 0.3s ease;
    transform: translateY(20px);
    opacity: 0;
}

.portfolio-item:hover .portfolio-link {
    transform: translateY(0);
    opacity: 1;
}

.portfolio-item:hover .portfolio-link:nth-child(1) {
    transition-delay: 0.1s;
}

.portfolio-item:hover .portfolio-link:nth-child(2) {
    transition-delay: 0.2s;
}

.portfolio-link:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
}

/* ===== PORTFOLIO CONTENT ===== */

.portfolio-content {
    padding: 2rem;
    position: relative;
    z-index: 1;
}

.portfolio-content h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
    transition: color 0.3s ease;
}

.portfolio-item:hover .portfolio-content h3 {
    color: var(--accent-primary);
}

.portfolio-content p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

/* ===== METRICS ROW ===== */

.portfolio-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: 16px;
    margin-bottom: 1.5rem;
}

.metric-item {
    text-align: center;
}

.metric-value {
    display: block;
    font-size: 1.75rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.25rem;
}

.metric-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ===== TECH TAGS ===== */

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.tech-tag {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    border: 1px solid var(--border-primary);
    transition: all 0.3s ease;
}

.tech-tag:hover {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

/* Tech tag colors */
.tech-tag:nth-child(3n+1) {
    border-color: var(--strategy-border);
}

.tech-tag:nth-child(3n+1):hover {
    background: var(--strategy-accent);
    border-color: var(--strategy-accent);
}

.tech-tag:nth-child(3n+2) {
    border-color: var(--platform-border);
}

.tech-tag:nth-child(3n+2):hover {
    background: var(--platform-accent);
    border-color: var(--platform-accent);
}

.tech-tag:nth-child(3n+3) {
    border-color: var(--security-border);
}

.tech-tag:nth-child(3n+3):hover {
    background: var(--security-accent);
    border-color: var(--security-accent);
}

/* ===== PROJECT STATUS BADGE ===== */

.project-status {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--card-bg);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    backdrop-filter: blur(10px);
    border: 2px solid;
    z-index: 3;
}

.project-status.success {
    color: var(--platform-accent);
    border-color: var(--platform-accent);
    background: var(--platform-bg);
}

.project-status.ongoing {
    color: var(--strategy-accent);
    border-color: var(--strategy-accent);
    background: var(--strategy-bg);
}

/* ===== PARALLAX EFFECT ===== */

.portfolio-item::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: var(--gradient-primary);
    border-radius: 24px;
    opacity: 0;
    z-index: -1;
    transition: opacity 0.4s ease;
}

.portfolio-item:hover::after {
    opacity: 0.5;
    animation: borderGlow 2s ease-in-out infinite;
}

@keyframes borderGlow {
    0%, 100% {
        opacity: 0.5;
    }
    50% {
        opacity: 0.8;
    }
}

/* ===== CASE STUDY BUTTON ===== */

.case-study-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent-primary);
    color: white;
    padding: 12px 24px;
    border-radius: 24px;
    font-weight: 600;
    text-decoration: none;
    margin-top: 1rem;
    transition: all 0.3s ease;
}

.case-study-btn:hover {
    background: var(--gradient-primary);
    transform: translateX(4px);
    box-shadow: 0 4px 12px rgba(245, 128, 78, 0.4);
}

.case-study-btn i {
    transition: transform 0.3s ease;
}

.case-study-btn:hover i {
    transform: translateX(4px);
}

/* ===== PORTFOLIO FILTERS ===== */

.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2.5rem;
}

.portfolio-filter-btn {
    background: var(--card-bg);
    border: 2px solid var(--border-primary);
    color: var(--text-primary);
    padding: 10px 24px;
    border-radius: 24px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.portfolio-filter-btn:hover {
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

.portfolio-filter-btn.active {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
    box-shadow: 0 4px 12px rgba(245, 128, 78, 0.3);
}

/* ===== RESPONSIVE DESIGN ===== */

@media (max-width: 1024px) {
    .portfolio-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 2rem;
    }

    .portfolio-metrics {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.75rem;
        padding: 1rem;
    }

    .metric-value {
        font-size: 1.5rem;
    }
}

@media (max-width: 768px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .portfolio-item:hover {
        transform: translateY(-8px);
    }

    .portfolio-image {
        height: 220px;
    }

    .portfolio-content {
        padding: 1.5rem;
    }

    .portfolio-metrics {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }

    .metric-item {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .metric-value {
        font-size: 1.25rem;
    }

    .tech-tags {
        gap: 0.5rem;
    }

    .tech-tag {
        font-size: 0.75rem;
        padding: 5px 12px;
    }
}

@media (max-width: 480px) {
    .portfolio-image {
        height: 180px;
    }

    .portfolio-content h3 {
        font-size: 1.25rem;
    }

    .portfolio-overlay {
        flex-direction: column;
    }

    .portfolio-link {
        width: 44px;
        height: 44px;
        font-size: 18px;
    }
}

/* ===== LIGHT THEME ADJUSTMENTS ===== */

[data-theme="light"] .portfolio-item {
    border: 2px solid rgba(0, 0, 0, 0.1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .portfolio-item:hover {
    border-color: var(--accent-primary);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

/* ===== DARK THEME ADJUSTMENTS ===== */

[data-theme="dark"] .portfolio-item {
    background: rgba(30, 41, 59, 0.6);
    border-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .portfolio-metrics {
    background: rgba(15, 23, 42, 0.8);
}

[data-theme="dark"] .tech-tag {
    background: rgba(30, 41, 59, 0.6);
    border-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .project-status {
    background: rgba(30, 41, 59, 0.9);
}

[data-theme="dark"] .portfolio-filter-btn {
    background: rgba(30, 41, 59, 0.6);
    border-color: rgba(255, 255, 255, 0.1);
}