/**
 * Enhanced Portfolio Styles for AppSolutions
 * Professional and user-friendly portfolio section styling
 * Optimized for mobile devices with improved touch interactions
 */

/* Portfolio Section */
.portfolio {
    padding: 6rem 0;
    background-color: var(--light-background);
    position: relative;
    overflow: hidden;
}

/* Add subtle gradient background for more professional look */
@media (min-width: 769px) {
    .portfolio {
        background: linear-gradient(to bottom, #f9f9f9, #ffffff);
    }
}

.portfolio::before {
    content: "";
    position: absolute;
    top: -10%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(44, 107, 237, 0.05) 0%, rgba(255, 255, 255, 0) 70%);
    border-radius: 50%;
    z-index: 0;
}

.portfolio::after {
    content: "";
    position: absolute;
    bottom: -10%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(101, 103, 178, 0.05) 0%, rgba(255, 255, 255, 0) 70%);
    border-radius: 50%;
    z-index: 0;
}

/* Portfolio Slider Container */
.portfolio-slider-container {
    position: relative;
    max-width: 1000px;
    margin: 3rem auto;
    overflow: hidden;
    padding: 2rem 0;
    z-index: 1;
}

/* Portfolio Slider */
.portfolio-slider {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.215, 0.610, 0.355, 1.000);
    height: 600px;
}

/* Portfolio Slide */
.portfolio-slide {
    min-width: 100%;
    padding: 0 15px;
    box-sizing: border-box;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Portfolio Item */
.portfolio-item {
    position: relative;
    height: 100%;
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    will-change: transform;
}

.portfolio-item.hover {
    transform: translateY(-10px) scale(1.02);
}

/* Device Mockup */
.device-mockup {
    position: relative;
    height: 100%;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Enhanced iPhone Frame */
.iphone-frame {
    position: relative;
    height: 100%;
    width: 100%;
    border-radius: 40px;
    overflow: hidden;
    background: linear-gradient(to bottom, #1a1a1a, #2c2c2c);
    box-shadow: 
        0 0 0 2px #444, 
        0 10px 30px rgba(0, 0, 0, 0.2),
        inset 0 0 5px rgba(0, 0, 0, 0.5);
    padding: 8px;
    transition: all 0.4s ease;
    transform: perspective(1000px) rotateY(0deg) rotateX(2deg);
}

.portfolio-item.hover .iphone-frame {
    box-shadow: 
        0 0 0 2px #555, 
        0 15px 35px rgba(0, 0, 0, 0.25),
        inset 0 0 5px rgba(0, 0, 0, 0.5);
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

/* Add side button to iPhone frame */
.iphone-frame::before {
    content: "";
    position: absolute;
    right: -3px;
    top: 100px;
    width: 3px;
    height: 30px;
    background-color: #444;
    border-radius: 3px 0 0 3px;
    z-index: 5;
}

/* Add volume buttons to iPhone frame */
.iphone-frame::after {
    content: "";
    position: absolute;
    left: -3px;
    top: 80px;
    width: 3px;
    height: 60px;
    background-color: #444;
    border-radius: 0 3px 3px 0;
    z-index: 5;
}

/* Enhanced iPhone Notch */
.iphone-notch {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50%;
    height: 25px;
    background-color: #1a1a1a;
    border-bottom-left-radius: 16px;
    border-bottom-right-radius: 16px;
    z-index: 10;
    box-shadow: inset 0 -2px 5px rgba(0, 0, 0, 0.2);
}

/* Add camera dot in notch */
.iphone-notch::after {
    content: "";
    position: absolute;
    top: 8px;
    right: 30%;
    width: 8px;
    height: 8px;
    background-color: #333;
    border-radius: 50%;
    box-shadow: inset 0 0 2px rgba(0, 0, 0, 0.5);
}

/* Add speaker in notch */
.iphone-notch::before {
    content: "";
    position: absolute;
    top: 10px;
    left: 35%;
    width: 30%;
    height: 4px;
    background-color: #333;
    border-radius: 4px;
    box-shadow: inset 0 0 2px rgba(0, 0, 0, 0.5);
}

/* Enhanced iPhone Home Indicator */
.iphone-home-indicator {
    position: absolute;
    bottom: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 40%;
    height: 5px;
    background-color: rgba(255, 255, 255, 0.5);
    border-radius: 3px;
    z-index: 10;
}

/* App Screenshot with Progressive Loading */
.app-screenshot {
    position: relative;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    object-fit: cover;
    border-radius: 32px;
    z-index: 1;
    transition: transform 0.5s ease, filter 0.5s ease;
}

/* Blur-up effect for progressive loading */
.app-screenshot.blur-up {
    filter: blur(10px);
    opacity: 0;
    animation: fadeIn 0.5s ease 0.2s forwards;
}

.app-screenshot.blur-up.loaded {
    filter: blur(0);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* App screenshot placeholder */
.app-screenshot-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #f0f0f0;
    border-radius: 32px;
    z-index: 0;
    opacity: 1;
    transition: opacity 0.5s ease;
}

.portfolio-item.hover .app-screenshot {
    transform: scale(1.03);
}

/* Add subtle reflection effect */
.app-screenshot::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(120deg, rgba(255,255,255,0) 30%, rgba(255,255,255,0.1) 38%, rgba(255,255,255,0.1) 40%, rgba(255,255,255,0) 48%);
    z-index: 2;
    pointer-events: none;
    border-radius: 32px;
}

/* Enhanced Portfolio Overlay */
.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.95) 0%, rgba(0, 0, 0, 0.85) 40%, rgba(0, 0, 0, 0) 100%);
    color: var(--light-text);
    padding: 2rem;
    transform: translateY(75%);
    transition: transform 0.5s cubic-bezier(0.215, 0.610, 0.355, 1.000);
    z-index: 3;
    border-radius: 0 0 32px 32px;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    box-shadow: 0 -10px 20px rgba(0, 0, 0, 0.1);
}

/* Desktop hover behavior */
@media (min-width: 769px) {
    .portfolio-item:hover .portfolio-overlay {
        transform: translateY(0);
    }
}

/* Mobile tap behavior */
.portfolio-item.overlay-visible .portfolio-overlay {
    transform: translateY(0) !important;
}

/* Tap indicator for mobile */
@media (max-width: 768px) {
    .portfolio-item::after {
        content: "";
        position: absolute;
        bottom: 25%;
        left: 50%;
        transform: translateX(-50%);
        width: 36px;
        height: 36px;
        background-color: rgba(44, 107, 237, 0.9);
        border-radius: 50%;
        z-index: 20;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
        opacity: 0.9;
        animation: pulse 1.5s infinite;
        transition: opacity 0.3s ease;
    }
    
    .portfolio-item.overlay-visible::after {
        opacity: 0;
    }
}

/* Enhanced Portfolio Overlay Content */
.portfolio-overlay h3 {
    margin-bottom: 0.5rem;
    color: var(--light-text);
    font-size: 1.4rem;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    font-weight: 600;
    letter-spacing: 0.5px;
}

.portfolio-overlay p {
    margin-bottom: 1rem;
    opacity: 0.9;
    font-size: 0.9rem;
    line-height: 1.6;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    color: rgba(255, 255, 255, 0.95);
}

/* Enhanced App Features */
.app-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.app-features span {
    background-color: rgba(58, 123, 219, 0.8);
    color: var(--light-text);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
    transition-delay: 0.1s;
    display: flex;
    align-items: center;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    font-weight: 500;
    letter-spacing: 0.3px;
}

.app-features span i {
    margin-right: 5px;
    font-size: 0.9rem;
}

/* Desktop hover behavior */
@media (min-width: 769px) {
    .portfolio-item:hover .app-features span {
        opacity: 1;
        transform: translateY(0);
    }
    
    .portfolio-item:hover .app-features span:nth-child(2) {
        transition-delay: 0.2s;
    }
    
    .portfolio-item:hover .app-features span:nth-child(3) {
        transition-delay: 0.3s;
    }
}

/* Mobile tap behavior */
.portfolio-item.overlay-visible .app-features span {
    opacity: 1;
    transform: translateY(0);
}

.portfolio-item.overlay-visible .app-features span:nth-child(2) {
    transition-delay: 0.2s;
}

.portfolio-item.overlay-visible .app-features span:nth-child(3) {
    transition-delay: 0.3s;
}

/* Enhanced Portfolio Navigation Buttons */
.portfolio-nav {
    position: absolute;
    width: 100%;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    z-index: 4;
    padding: 0 30px;
}

.portfolio-nav button {
    background-color: var(--primary-color);
    color: var(--light-text);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: none;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    opacity: 0.9;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    -webkit-tap-highlight-color: transparent;
}

.portfolio-nav button i {
    font-size: 1rem;
}

.portfolio-nav button:hover {
    opacity: 1;
    background-color: var(--deep-purple-color);
    transform: scale(1.1);
}

.portfolio-nav button:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(58, 123, 219, 0.5), 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* Mobile-specific nav button styles */
@media (max-width: 768px) {
    .portfolio-nav {
        padding: 0 15px;
    }
    
    .portfolio-nav button {
        width: 44px;
        height: 44px;
        background-color: var(--primary-color);
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
    }
    
    .portfolio-nav button:active {
        transform: scale(0.95);
        opacity: 1;
    }
}

/* Enhanced Portfolio Dots */
.portfolio-dots {
    display: flex;
    justify-content: center;
    margin-top: 2rem;
    gap: 0.8rem;
}

.portfolio-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: rgba(58, 123, 219, 0.3);
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    position: relative;
}

.portfolio-dot:hover {
    background-color: rgba(58, 123, 219, 0.5);
}

.portfolio-dot.active {
    background-color: var(--primary-color);
    transform: scale(1.3);
}

.portfolio-dot:focus {
    outline: none;
    border-color: rgba(58, 123, 219, 0.5);
}

/* Mobile-specific dot styles */
@media (max-width: 768px) {
    .portfolio-dots {
        gap: 10px;
        margin-top: 1.5rem;
    }
    
    /* Add touch area around dots */
    .portfolio-dot::before {
        content: "";
        position: absolute;
        top: -10px;
        left: -10px;
        right: -10px;
        bottom: -10px;
    }
}

/* Text Center */
.text-center {
    text-align: center;
    margin-top: 2rem;
}

/* Accessibility Enhancements */
.portfolio-nav button {
    position: relative;
}

.portfolio-nav button:focus-visible {
    outline: 3px solid var(--primary-color);
    outline-offset: 3px;
}

.portfolio-dot:focus-visible {
    outline: 3px solid var(--primary-color);
    outline-offset: 3px;
}

/* Responsive Styles */
@media (max-width: 992px) {
    .portfolio-slider {
        height: 550px;
    }
}

@media (max-width: 768px) {
    .portfolio {
        padding: 4rem 0;
    }
    
    .portfolio-slider {
        height: 500px;
    }
    
    .portfolio-overlay {
        padding: 1.5rem;
    }
    
    .portfolio-overlay h3 {
        font-size: 1.2rem;
    }
    
    .portfolio-overlay p {
        font-size: 0.85rem;
    }
    
    .app-features span {
        padding: 0.25rem 0.7rem;
        font-size: 0.75rem;
    }
    
    .portfolio-nav button {
        width: 40px;
        height: 40px;
    }
}

@media (max-width: 576px) {
    .portfolio-slider {
        height: 450px;
    }
    
    .portfolio-overlay {
        padding: 1.2rem;
        transform: translateY(65%);
    }
    
    .portfolio-overlay h3 {
        font-size: 1.1rem;
    }
    
    .portfolio-overlay p {
        font-size: 0.8rem;
        margin-bottom: 0.8rem;
    }
    
    .app-features {
        gap: 0.6rem;
    }
    
    .app-features span {
        padding: 0.2rem 0.6rem;
        font-size: 0.7rem;
    }
    
    .portfolio-nav {
        padding: 0 15px;
    }
    
    .portfolio-nav button {
        width: 36px;
        height: 36px;
    }
}

/* Enhanced animations for portfolio items */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.portfolio-slide[data-aos="fade-up"] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.portfolio-slide[data-aos="fade-up"].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

/* Enhanced entrance animation for mobile */
@media (max-width: 768px) {
    .portfolio-item {
        opacity: 0;
        transform: translateY(20px);
        transition: opacity 0.5s ease, transform 0.5s ease;
    }
    
    .portfolio-item.in-view {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Swipe hint animation */
@keyframes swipeHint {
    0%, 100% { opacity: 0; right: 15%; }
    20%, 80% { opacity: 0.7; }
    90% { right: 5%; opacity: 0; }
}

.portfolio-slider-container.show-swipe-hint::after {
    content: "";
    position: absolute;
    top: 50%;
    right: 15%;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translateY(-50%);
    opacity: 0;
    animation: swipeHint 3s ease-in-out 1s;
    pointer-events: none;
    z-index: 10;
}

/* Enhanced Portfolio CTA button */
.portfolio .cta-btn {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    z-index: 1;
    font-weight: 600;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 15px rgba(44, 107, 237, 0.25);
}

.portfolio .cta-btn::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: all 0.6s ease;
    z-index: -1;
}

.portfolio .cta-btn:hover::before {
    left: 100%;
}

/* Mobile-specific CTA button */
@media (max-width: 768px) {
    .portfolio .cta-btn {
        width: 80%;
        max-width: 300px;
        padding: 1rem;
        margin: 0 auto;
        display: block;
        -webkit-tap-highlight-color: transparent;
    }
    
    .portfolio .cta-btn:active {
        transform: translateY(2px);
        box-shadow: 0 2px 8px rgba(44, 107, 237, 0.2);
    }
}

/* Screen reader only class */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}