:root {
    --card-bg-color: #eeeeee;
    --text-color: #222222;
    --primary-action-color: #14cf93;
    --font-family: 'Plus Jakarta Sans', sans-serif;
    --font-size: 16;
    --bg-light: #f9f9f9;
    --bg-dark: #222222;
    --text-light: #eeeeee;
    --card-image-light: #f0f0f0;
    --card-image-dark: #e0e0e0;
    --shimmer-color: rgba(255, 255, 255, 0.3);
    --svg-spotify-green: #1DB954;
    --svg-spotify-dark: #191414;
    --svg-ai-dark: #0f0f23;
    --svg-uber-green: #06C167;
    --svg-uber-white: #ffffff;
    --svg-goli-orange: #FF6B35;
    --svg-fintech-dark: #1a1a2e;
}

@keyframes shimmer {
    100% {
        left: 100%;
    }
}

/* Portfolio Section */
.portfolio-section {
    min-height: 100%;
}

/* Background Container */
.portfolio-background {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
}

.portfolio-background-top {
    height: 50%;
    background-color: var(--bg-light);
}

.portfolio-background-bottom {
    height: 50%;
    background-color: var(--bg-dark);
}

/* Content Wrapper */
.portfolio-content-wrapper {
    position: relative;
    z-index: 10;
    padding-top: 3rem;
    padding-bottom: 3rem;
}

@media (min-width: 768px) {
    .portfolio-content-wrapper {
        padding-top: 4rem;
        padding-bottom: 4rem;
    }
}

@media (min-width: 1024px) {
    .portfolio-content-wrapper {
        padding-top: 6rem;
        padding-bottom: 6rem;
    }
}

/* Header Container */
.portfolio-header {
    max-width: 145rem;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 2.5rem;
    padding-left: 1rem;
    padding-right: 1rem;
}

@media (min-width: 768px) {
    .portfolio-header {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }
}

@media (min-width: 1024px) {
    .portfolio-header {
        margin-bottom: 3.5rem;
        padding-left: 2rem;
        padding-right: 2rem;
    }
}

/* Header Grid */
.portfolio-header-grid {
    display: grid;
    grid-template-columns: repeat(1, minmax(0, 1fr));
    gap: 1.5rem;
    align-items: flex-end;
}

@media (min-width: 768px) {
    .portfolio-header-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
        gap: 1.5rem;
    }
}

/* Left Spacer (Hidden on mobile) */
.portfolio-header-spacer {
    display: none;
}

@media (min-width: 768px) {
    .portfolio-header-spacer {
        display: block;
    }
}

/* Title Container */
.portfolio-title-container {
    text-align: center;
    grid-column: span 2 / span 2;
}

/* Subtitle */
.portfolio-subtitle {
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--primary-action-color);
    font-size: 20px;
}

/* Heading */
.portfolio-heading {
    font-weight: 800;
    line-height: 1.25;
    color: var(--text-color);
    font-size: clamp(36px, 8vw, 60px);
}

/* Navigation Container */
.portfolio-nav-container {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
}

@media (min-width: 768px) {
    .portfolio-nav-container {
        justify-content: flex-end;
    }
}

/* Navigation Button */
.portfolio-nav-btn {
    border: 2px solid var(--primary-action-color);
    background-color: var(--primary-action-color);
    width: 4rem;
    height: 4rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    transition: all 0.3s ease;
    font-family: inherit;
}

.portfolio-nav-btn:hover {
    background-color: var(--text-light) !important;
}

.portfolio-nav-btn svg {
    stroke: var(--text-color);
    transition: stroke 0.3s ease;
    width: 2rem;
    height: 2rem;
}

.portfolio-nav-btn:hover svg {
    stroke: var(--primary-action-color) !important;
}

/* Swiper Container */
.portfolio-section .swiper-container {
    width: 100%;
    padding-left: 1rem;
    padding-right: 1rem;
}

@media (min-width: 640px) {
    .portfolio-section .swiper-container {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }
}

@media (min-width: 1024px) {
    .portfolio-section .swiper-container {
        padding-left: 2rem;
        padding-right: 2rem;
    }
}

/* Swiper Wrapper */
.portfolio-section .swiper-wrapper {
    display: grid;
    grid-auto-flow: column;
    grid-auto-rows: 1fr;
    align-items: stretch;
}

/* Swiper Slide */
.portfolio-section .swiper-slide {
    display: flex;
    flex-direction: column;
}

/* Portfolio Card */
.portfolio-card {
    flex: 1;
    flex-shrink: 0;
    border-radius: 1rem;
    padding: 3.5rem;
    background-color: var(--card-bg-color);
    /* box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05); */
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    height: 100%;
    margin-bottom: 1rem;
}

@media (min-width: 640px) {
    .portfolio-card {
        padding: 2.5rem;
    }
}

@media (min-width: 768px) {
    .portfolio-card {
        padding: 2.25rem;
    }
}

@media (min-width: 1024px) {
    .portfolio-card {
        padding: 3rem;
    }
}

.portfolio-section .swiper-slide-active .portfolio-card,
.portfolio-card:hover {
    transform: translateY(-8px);
    /* box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15); */
}

/* Card Content Wrapper */
.portfolio-card-content {
    display: flex;
    flex-direction: column;
    height: 100%;
    gap: 1rem;
}

@media (min-width: 768px) {
    .portfolio-card-content {
        gap: 1.25rem;
    }
}

/* Card Heading */
.portfolio-card-heading {
    font-weight: 700;
    color: var(--text-color);
    font-size: 2.5rem;
}

@media (max-width: 640px) {
    .portfolio-card-heading {
        font-size: 2rem;
    }
}

/* Card Image */
.portfolio-card-image {
    background: linear-gradient(135deg, var(--card-image-light) 0%, var(--card-image-dark) 100%);
    position: relative;
    overflow: hidden;
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.portfolio-card-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--shimmer-color), transparent);
    animation: shimmer 2s infinite;
}

/* Card Tags */
.portfolio-card-tags {
    font-weight: 500;
    letter-spacing: 0.025em;
    opacity: 0.7;
    color: var(--text-color);
    font-size: 0.95rem;
    margin-bottom: 0;
}

/* Card Description */
.portfolio-card-description {
    flex-grow: 1;
    line-height: 1.625;
    opacity: 0.85;
    color: var(--text-color);
    font-size: 2rem;
    margin-bottom: 0;
}

@media (max-width: 768px) {
    .portfolio-card-description {
        font-size: 1.75rem;
    }
}

/* Card Button */
.portfolio-card-button {
    display: inline-block;
    text-align: center;
    text-transform: uppercase;
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    border-radius: 9999px;
    margin-top: 0.5rem;
    transition: all 0.3s ease;
    border: 2px solid var(--primary-action-color);
    background-color: var(--card-bg-color);
    color: var(--primary-action-color);
    text-decoration: none;
    cursor: pointer;
    font-size: 1.25rem;
}

.portfolio-card-button:hover {
    background-color: var(--primary-action-color) !important;
    color: var(--text-color) !important;
}

/* Swiper Navigation */
.portfolio-section .swiper-button-disabled {
    opacity: 0.5;
    cursor: not-allowed;
}