/* ===== CSS VARIABLES ===== */
:root {
    --primary-color: #FF6B35;
    --secondary-color: #283138;
    --accent-color: #FF6B35;
    --dark-bg: #1f1f1f;
    --darker-bg: #000000;
    --light-text: #FFFFFF;
    --gray-text: #B8C5D6;
    --gradient-1: linear-gradient(135deg, #ff5724 0%, #ffffff 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-primary: linear-gradient(135deg, #FF6B35 0%, #FF6B35 100%);
    --card-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    --hover-shadow: 0 15px 60px rgba(255, 107, 53, 0.4);
}

/* ===== GLOBAL RESET ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--dark-bg);
    color: var(--light-text);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(168, 163, 161, 0.1);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    padding: 0.5rem 0;
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -1px;
    text-decoration: none;
}

.logo:hover {
    background: white;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-link {
    color: var(--gray-text);
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link:hover::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* ===== HERO SECTION ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--darker-bg) 0%, var(--dark-bg) 100%);
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255, 107, 53, 0.1) 0%, transparent 70%);
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
        opacity: 0.5;
    }

    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    text-align: center;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: clamp(2rem, 6vw, 4.2rem);
    font-weight: 900;
    line-height: 1.05;
    margin-bottom: 1rem;
    letter-spacing: -1px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    color: var(--gray-text);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--gray-text);
    max-width: 700px;
    margin: 0 auto 2.5rem;
    line-height: 1.8;
    white-space: nowrap;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-bottom: 4rem;
    flex-wrap: wrap;
}

.btn {
    padding: 1.5rem;
    border-radius: 25px;
    text-align: center;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-self: center;
    align-items: center;
    gap: 1.5rem;
    margin: 5%;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    width: auto;
    height: auto;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 5px 20px rgba(255, 107, 53, 0.3);
}

.btn-primary:hover {
    background: black;
    color: var(--primary-color);
    transform: translateY(-3px);
    border: 2px solid var(--primary-color);
    box-shadow:
        0 0 0 0.5em rgba(255, 107, 53, 0.2),
        0 0 0 0.5em rgba(255, 107, 53, 0.1);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--gradient-primary);
    color: white;
    border: none;
    box-shadow: 0 0 0 0.5em rgba(255, 107, 53, 0.2),
        0 0 0 0.5em rgba(255, 107, 53, 0.3);
    transform: translateY(-3px);
}

@media (max-width: 768px) {
    .btn-primary {
        zoom: 85%;
        /* smaller zoom on tablets */
    }
}

@media (max-width: 480px) {
    .btn-primary {
        zoom: 65%;
        /* even smaller on phones */
    }
}

@media (max-width: 768px) {
    .btn-secondary {
        zoom: 85%;
        /* smaller zoom on tablets */
    }
}

@media (max-width: 480px) {
    .btn-secondary {
        zoom: 65%;
        /* even smaller on phones */
    }
}

.btn-large {
    padding: 1.2rem 3rem;
    font-size: 1.1rem;
}

.btn svg {
    width: auto;
    height: 20;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 4rem;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--gray-text);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
}

.scroll-indicator span {
    display: block;
    width: 30px;
    height: 50px;
    border: 2px solid var(--primary-color);
    border-radius: 25px;
    position: relative;
}

.scroll-indicator span::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% {
        top: 10px;
        opacity: 1;
    }

    100% {
        top: 30px;
        opacity: 0;
    }
}

/* ===== SECTIONS ===== */
section {
    padding: 4rem 0;
    position: relative;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-header {
    text-align: center;
    margin-bottom: 2rem;
}

.section-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    margin-bottom: 1rem;
    letter-spacing: -1px;
}

.section-title:hover {
    transform: scale(1.10);
}

.section-divider-top {
    width: 85%;
    height: 4px;
    background: var(--gradient-primary);
    margin: 0 auto 0;
    border-radius: 2px;
}

.section-divider-bottom {
    width: 50%;
    height: 4px;
    background: var(--gradient-primary);
    margin: 0 auto 1.5rem;
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.4rem;
    color: var(--gray-text);
    max-width: 900px;
    margin: 0 auto;
}

.animated-text {
    font-size: 1.1rem;
    color: var(--gray-text);
    max-width: 900px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin: 0 auto;
    text-align: center;
    font-weight: bold;
    animation: myAnimation 4s infinite;
}

/* ===== ABOUT SECTION ===== */
.about {
    background: var(--darker-bg);
}

.about-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.lead {
    font-size: 1.4rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: var(--light-text);
}

.about-text p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    line-height: 1.8;
}

.about-highlights {
    margin-top: 3rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.highlight-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.highlight-icon {
    font-size: 3rem;
    flex-shrink: 0;
}

.highlight-text strong {
    display: block;
    color: var(--light-text);
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.highlight-text p {
    margin: 0;
    font-size: 1rem;
}

.about-image {
    position: relative;
}

.image-wrapper {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
}

.image-wrapper img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 20px;
}

.image-border {
    position: absolute;
    top: -20px;
    right: -20px;
    width: 100%;
    height: 100%;
    border: 3px solid var(--primary-color);
    border-radius: 20px;
    z-index: -1;
}

/* ===== SKILLS SECTION ===== */
.skills {
    background: var(--dark-bg);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.skill-category {
    background: rgba(255, 255, 255, 0.02);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all 0.3s ease;
}

.skill-category:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--hover-shadow);
}

.category-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.category-icon {
    font-size: 2.5rem;
}

.category-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
}

.skill-items {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.skill-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.3rem;
}

.skill-info span:first-child {
    font-weight: 600;
    color: var(--light-text);
}

.skill-level {
    font-size: 0.85rem;
    color: var(--primary-color);
    font-weight: 600;
}

.skill-bar {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 10px;
    transition: width 1s ease;
}

/* ===== PORTFOLIO SECTION ===== */
.portfolio {
    background: var(--darker-bg);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
    align-items: start;
}

.portfolio-item {
    background: rgba(255, 255, 255, 0.02);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all 0.3s ease;
}

.portfolio-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--hover-shadow);
    border-color: var(--primary-color);
}

.portfolio-item.featured {
    grid-column: span 1;
}

.portfolio-item-centered {
    grid-column: span 1;
    margin: 0 auto;
}

.portfolio-image {
    position: relative;
    overflow: hidden;
    height: 350px;
    background: rgba(0, 0, 0, 0.3);
}

.portfolio-item.featured .portfolio-image {
    height: 350px;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: scale-down;
    transition: transform 0.3s ease;
}

/* Improved mobile scaling */
@media (max-width: 900px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero-title {
        white-space: normal;
        font-size: clamp(1.6rem, 7vw, 3.2rem);
    }

    .hero-description {
        white-space: normal;
        max-width: 92%;
        font-size: 1.05rem;
    }

    .portfolio-image {
        height: 220px;
        max-height: 50vw;
    }

    .portfolio-image img {
        height: 100%;
        max-height: 220px;
        object-fit: cover;
    }

    .nav-container {
        padding: 0 1rem;
    }

    section {
        padding: 3rem 0;
    }
}

@media (max-width: 600px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: clamp(1.4rem, 8vw, 2.4rem);
    }

    .hero-description {
        font-size: 1rem;
    }

    .hero-buttons {
        margin-bottom: 2rem;
    }

    .section-subtitle {
        font-size: 1.1rem;
        padding: 0 1rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }
}

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.1);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 0%, rgba(0, 0, 0, 0.35) 100%);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: 0 1rem 1.25rem;
}

.portfolio-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    margin: 0;

}

.tag {
    background: var(--primary-color);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    text-align: center;
}

.portfolio-content {
    padding: 2rem;
}

.portfolio-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--light-text);
}

.portfolio-category {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.portfolio-description {
    color: var(--gray-text);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.portfolio-details {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.detail-item {
    font-size: 0.95rem;
    color: var(--gray-text);
}

.detail-item strong {
    color: var(--light-text);
    margin-right: 0.5rem;
}

/* ===== PATENTS SECTION ===== */
.patents {
    background: var(--dark-bg);
}

.patents-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(553px, 1fr));
    gap: 3rem;
}

.patent-card {
    background: rgba(255, 255, 255, 0.02);
    padding: 3rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all 0.3s ease;
}

.patent-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--hover-shadow);
}

.patent-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.portfolio-item-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.patent-card-link:hover .patent-card {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--hover-shadow);
}

.patent-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid rgba(255, 107, 53, 0.2);
}

.patent-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.patent-icon svg {
    width: 30px;
    height: 30px;
    color: white;
}

.patent-number {
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--primary-color);
    font-family: 'Courier New', monospace;
}

.patent-title {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.patent-holder {
    color: var(--gray-text);
    font-weight: 600;
    margin-bottom: 2rem;
}

.patent-description {
    color: var(--gray-text);
    line-height: 1.8;
}

.patent-description h4 {
    color: var(--light-text);
    margin-top: 1.5rem;
    margin-bottom: 0.8rem;
    font-size: 1.1rem;
}

.patent-description ul {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.patent-description li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.patent-meta {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.95rem;
    flex-wrap: wrap;
}

.patent-meta span {
    color: var(--gray-text);
}

.patent-meta strong {
    color: var(--light-text);
}

/* ===== EXPERIENCE SECTION ===== */
.experience {
    background: var(--darker-bg);
}

.timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    padding-left: 50px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--gradient-primary);
}

.timeline-item {
    position: relative;
    margin-bottom: 4rem;
}

.timeline-marker {
    position: absolute;
    left: -57px;
    top: 0;
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border: 4px solid var(--darker-bg);
    border-radius: 50%;
    z-index: 2;
}

.timeline-content {
    background: rgba(255, 255, 255, 0.02);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all 0.3s ease;
}

.timeline-content:hover {
    transform: translateX(10px);
    border-color: var(--primary-color);
    box-shadow: var(--card-shadow);
}

.timeline-header {
    margin-bottom: 1.5rem;
}

.timeline-header h3 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.timeline-company {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1.1rem;
    display: block;
    margin-bottom: 0.3rem;
}

.timeline-date {
    color: var(--gray-text);
    font-size: 0.95rem;
}

.timeline-description {
    color: var(--gray-text);
    line-height: 1.8;
}

.timeline-description p {
    margin-bottom: 1rem;
}

.achievement-list {
    list-style: none;
    margin-top: 1rem;
}

.achievement-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.8rem;
    line-height: 1.6;
}

.achievement-list li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.timeline-skills {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.skill-badge {
    background: rgba(255, 107, 53, 0.1);
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    border: 1px solid rgba(255, 107, 53, 0.3);
}

.awards-section {
    margin-top: 5rem;
    padding-top: 4rem;
    border-top: 2px solid rgba(255, 107, 53, 0.2);
}

.awards-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.awards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.award-card {
    background: rgba(255, 255, 255, 0.02);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all 0.3s ease;
}

.award-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--card-shadow);
}

.award-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.award-card h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.award-card p {
    color: var(--gray-text);
    font-size: 0.9rem;
}

/* ===== WHY Michael SECTION ===== */
.why-Michael {
    background: var(--darker-bg);
    position: relative;
    overflow: hidden;
}

.why-Michael::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: radial-gradient(circle at top right, rgba(255, 107, 53, 0.05) 0%, transparent 70%);
}

.why-content {
    position: relative;
    z-index: 2;
}

.why-hero {
    text-align: center;
    max-width: 900px;
    margin: 0 auto 4rem;
    padding: 3rem;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 20px;
    border: 2px solid var(--primary-color);

}

.why-hero h3 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.why-card {
    background: rgba(255, 255, 255, 0.02);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all 0.3s ease;
}

.why-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--card-shadow);
}

.why-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
}

.why-card h4 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.why-card p {
    color: var(--gray-text);
    line-height: 1.8;
}

.why-closing {
    background: rgba(255, 255, 255, 0.02);
    padding: 0rem 3rem 1rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.why-closing h3 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--primary-color);
}

.why-list {
    list-style: none;
    margin-bottom: 3rem;
}

.why-list li {
    position: relative;
    padding-left: 2rem;
    margin-bottom: 1rem;
    color: var(--gray-text);
    line-height: 1.8;
    font-size: 1.1rem;
}

.why-list li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.5rem;
}

.why-final {
    font-size: 1.4rem;
    text-align: center;
    padding: 2rem;
    background: rgba(255, 107, 53, 0.1);
    border-radius: 15px;
    border: 2px solid var(--primary-color);
    margin-top: 2rem;
    font-weight: 600;
    color: var(--light-text);
}

.why-final:hover {

    flex-grow: var(--accent-color);
    border-color: var(--primary-color);
    box-shadow: var(--card-shadow);
    background-color: #FF6B35;
}

.why-intro {
    font-size: 1.3rem;
    text-align: center;
    text-wrap: none;
}

.why-quote {
    font-size: 1.6rem;
    text-align: center;
    color: var(--light-text);
    font-weight: 700;
}

/* ===== CONTACT SECTION ===== */
.contact {
    background: var(--dark-bg);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
    color: white;
}

.contact-details h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.contact-details a,
.contact-details p {
    color: var(--gray-text);
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-details a:hover {
    color: var(--primary-color);
}

.contact-cta {
    background: rgba(255, 255, 255, 0.02);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    margin-top: 2rem;
}

.contact-cta h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.contact-cta ul {
    list-style: none;
}

.contact-cta li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.8rem;
    color: var(--gray-text);
    line-height: 1.6;
}

.contact-cta li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.contact-form-wrapper {
    background: rgba(255, 255, 255, 0.02);
    padding: 3rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    color: var(--light-text);
}

.form-group input,
.form-group textarea {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1rem;
    border-radius: 10px;
    color: var(--light-text);
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.08);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--darker-bg);
    padding: 4rem 0 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.logo-large {
    color: var(--primary-color);
    font-size: 3rem;
    font-weight: 800;
    text-decoration: none;
}

.logo-large:hover {
    font-size: 4rem;
    color: #FFFFFF;
    transform: translateY(0px);
    border-color: var(--primary-color);
    box-shadow: var(--card-shadow);
}

.footer-brand p {
    color: var(--gray-text);
    font-size: 1.1rem;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    color: var(--gray-text);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--primary-color);
}

.footer-contact p {
    color: var(--gray-text);
    margin-bottom: 0.5rem;
    font-weight: normal;
}

.contact-label {
    font-weight: 700;
    display: inline;
    margin-right: 0.5rem;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
    color: var(--gray-text);
}

.footer-tagline {
    margin-top: 0.5rem;
    color: var(--primary-color);
    font-weight: 600;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
    .about-content {
        grid-template-columns: 1fr;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

    .portfolio-item.featured {
        grid-column: span 1;
    }

    .patents-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {

    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100vw;
        background: rgba(0, 0, 0, 0.98);
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        padding: 1.5rem 0 1.5rem 2rem;
        z-index: 999;
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    }

    .nav-menu.active {
        display: flex;
    }

    .hamburger {
        display: flex;
    }

    .hero-stats {
        gap: 2rem;
    }

    .stat-number {
        font-size: 2.5rem;
    }

    .timeline {
        padding-left: 30px;
    }

    .timeline-marker {
        left: -38px;
    }

    section {
        padding: 5rem 0;
    }

    .skills-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .awards-grid {
        grid-template-columns: 1fr;
    }

    .contact-form-wrapper {
        padding: 2rem;
    }

    .btn {
        padding: 0.9rem 2rem;
        font-size: 0.95rem;
    }

    .btn-large {
        padding: 2.5rem;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
    }

    .btn {
        width: 100%;
        justify-content: center;
        padding: 0.75rem 0.75rem;
        font-size: 0.9rem;
    }

    .btn-large {
        padding: 0.85rem 1.8rem;
        font-size: 0.95rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }

    .skill-category {
        padding: 1.5rem;
    }

    .patent-card {
        padding: 2rem;
    }

    .timeline-content {
        padding: 1.5rem;
    }
}

/* ===== ANIMATIONS ===== */
/* @keyframes animation-name {
https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties/animation
*/

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

@keyframes growAndShrink {
    0% {
        font-size: 1.2em;
        color: var(--accent-color);
    }

    50% {
        font-size: 1em;
        color: rgb(255, 255, 255);
    }

    100% {
        font-size: 1.2em;
        color: var(--accent-color);
    }
}

@keyframes growOnHover {
    0% {
        transform: scale(1);
    }

    100% {
        transform: scale(1.10);
    }
}

.grow-one-hover:hover {
    animation: growOnHover 0.3s forwards;
}

@keyframes flashColors {
    0% {
        color: var(--accent-color);
    }

    50% {
        color: rgb(255, 255, 255);
    }

    100% {
        color: var(--accent-color);
    }
}

/* ===== UTILITY CLASSES ===== */
.text-center {
    text-align: center;
}

.mt-1 {
    margin-top: 1rem;
}

.mt-2 {
    margin-top: 2rem;
}

.mt-3 {
    margin-top: 3rem;
}

.mb-1 {
    margin-bottom: 1rem;
}

.mb-2 {
    margin-bottom: 2rem;
}


/* =============================================================================
   DETAIL PAGES CSS (formerly detail-pages.css)
   Page-specific styles for project/patent detail pages
   (vacuum-coffeemaker.html, humidor.html, etc.)
   ============================================================================= */


/* =============================================================================
   HERO SECTION
   Full-width banner with a background photo, gradient overlay, and text.
   Three layers are stacked using absolute positioning + z-index:
     0 — .project-hero-image (photo)
     1 — .project-hero-overlay (gradient)
     2 — .project-hero-content (title/tags)
   ============================================================================= */

.project-hero {
    position: relative;
    height: fit-content;
    width: 100%;
    display: flex;
    align-items: center;
    color: var(--light-text);
}

/* Wrapper that fills the full hero area behind the text */
.project-hero-image {
    position: absolute;
    inset: 0;
    z-index: 0;
}

/* Photo covers the full hero area and is dimmed so text reads clearly */
.project-hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    filter: brightness(0.65);
}

/* Gradient fades from semi-transparent at the top to near-black at the bottom,
   so the white title text sitting near the bottom remains legible. */
.project-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.12), rgba(0, 0, 0, 0.95));
    z-index: 1;
    align-items: center;
}

/* Content (title + subtitle + tags) sits above both image and overlay */
.project-hero-content {
    align-items: center;
    position: relative;
    z-index: 2;
    padding: 4rem 4em;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    min-width: 85%;
    max-width: 1200px;
    margin: 0 auto;
}

/* Back-navigation link (not used on vacuum page but available for other detail pages) */
.back-link {
    color: var(--light-text);
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    text-decoration: none;
}

/* Responsive font size: never smaller than 2rem, grows with viewport up to 3rem */
.project-title {
    font-size: clamp(2rem, 3vw, 3rem);
    margin: 0;
    padding-top: 75px;
    /* Pushes title down to account for the fixed navbar height */
    text-align: center;
}

/* Accent-colored subtitle line below the main title */
.project-subtitle {
    font-size: 1.15rem;
    color: #FF6B35;
    margin: 0;
    padding-bottom: 15px;
    text-align: center;
}

/* Tag pills in the hero — solid orange background, rounded corners */
.project-meta .project-tag {
    align-self: center;
    background: #FF6B35;
    padding: .75rem;
    border-radius: 25px;
    margin: .75rem;
    color: white;
    font-weight: 600;
    display: inline-block;
    text-align: center;
    width: 150px;
}

/* Flexible tag row (used on some pages for a larger set of tags) */
.portfolio-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    margin: 0;
}

/* Individual tag pill using the primary CSS variable color */
.tag {
    background: var(--primary-color);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    text-align: center;
}


/* =============================================================================
   PORTFOLIO IMAGE GRID (detail page variant)
   3-column grid of image cards used to showcase product photos/renderings.

   EQUAL-HEIGHT CARDS: Cards use a flex-column layout so the fixed-height image
   area (260px) never squishes, and the text area below flexes to fill whatever
   space remains — keeping all cards in a row the same total height regardless
   of how much text each card has.
   ============================================================================= */

.portfolio-grid {
    max-width: 75%;
    margin: 1.5rem auto 0;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    align-items: stretch;
    /* stretch makes all grid cells the same height */
}

/* Each card is a flex column so image + content stack vertically */
.portfolio-grid .portfolio-item {
    display: flex;
    flex-direction: column;
}

/* Fixed image height — keeps all images the same size regardless of aspect ratio */
.portfolio-grid .portfolio-image {
    height: 260px;
    flex-shrink: 0;
    /* prevents the image from compressing when content is tall */
}

/* Text content area fills the remaining card height below the image */
.portfolio-grid .portfolio-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

/* Alternative wider grid variant (currently unused on vacuum page) */
.portfolio-grid-2 {
    max-width: 100%;
    margin: 1.5rem auto 0;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

/* Taller image variant for hero-style portfolio items */
.portfolio-item-1 .portfolio-image {
    height: 375px;
    overflow: hidden;
    border-radius: 12px;
}

.portfolio-item-1 .portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Shared padding for all .portfolio-content areas (not just inside .portfolio-grid) */
.portfolio-content {
    padding: 0.5rem .5rem;
}

/* Portfolio grid mobile styles */
@media (max-width: 768px) {
    .portfolio-grid {
        max-width: 85%;
        grid-template-columns: 1fr;
    }
}


/* =============================================================================
   PROJECT DESCRIPTION
   Outer wrapper for "The Innovation" section. Slightly narrower than the
   container (85%) so long text doesn't span the full page width, improving
   readability on large monitors.
   ============================================================================= */

.project-description {
    max-width: 85%;
    margin: 2.5rem auto 0;
    padding: 0 3rem;
}

.project-description h2 {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    margin-bottom: 1rem;
}

/* Add vertical spacing between consecutive paragraphs */
.project-description p+p {
    margin-top: 1.5rem;
}

/* Project description mobile styles */
@media (max-width: 768px) {
    .project-description {
        max-width: 100%;
        padding: 0 1.5rem;
    }
}


/* =============================================================================
   DEVELOPMENT JOURNEY (standard content section wrapper)
   Used for: Development Journey, Key Benefits, How It Works,
             Technical Specifications, and other body sections.

   This is the primary layout wrapper for all prose/content sections.
   Max-width 85% + auto margins centers it; padding prevents text from
   touching the edges on mid-size screens.
   ============================================================================= */

.content-section {
    max-width: 85%;
    margin: 2rem auto;
    padding: 0 3rem;
}

/* Vertical spacing between paragraphs within a section */
.content-section p+p {
    margin-top: 1.5rem;
}

/* Content section mobile styles */
@media (max-width: 768px) {
    .content-section {
        max-width: 100%;
        padding: 0 1.5rem;
    }
}


/* =============================================================================
   PORTFOLIO ITEM ROW (1/4 - 1/2 - 1/4 layout)
   Special 3-item row where the center item is twice as wide as the side items.
   Used on other detail pages — not currently used on the vacuum page.
   ============================================================================= */

.portfolio-item-row-2 {
    display: flex;
    gap: 1.5rem;
    margin: 1.5rem auto 0;
    justify-content: center;
}

.portfolio-item-row-2 .portfolio-item:nth-child(1),
.portfolio-item-row-2 .portfolio-item:nth-child(3) {
    flex: 0 0 calc(25% - 0.75rem);
}

.portfolio-item-row-2 .portfolio-item:nth-child(2) {
    flex: 0 0 calc(50% - 0.75rem);
}

.portfolio-item-row-2 .portfolio-image {
    height: 350px;
    overflow: hidden;
    border-radius: 12px;
}

.portfolio-item-row-2 .portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}


/* =============================================================================
   SECTION HEADINGS
   .project-content h3 catches all h3 elements inside the main content area,
   giving them a larger, responsive size.

   SPECIFICITY NOTE: This rule overrides the global styles.css rule for
   .portfolio-content h3 because detail-pages.css loads after styles.css.
   The fix below re-declares .portfolio-content h3 to restore card titles
   to their intended smaller size.
   ============================================================================= */

/* All h3s inside the project content area (section headings like "Key Benefits") */
.project-content h3 {
    font-size: clamp(1.4rem, 2.5vw, 1.9rem);
    margin: 2.5rem 0 1.25rem;
}

/* Re-declare portfolio card titles to override the broad .project-content h3 rule above.
   Without this, card titles ("Front View", "Back View", etc.) would be too large. */
.portfolio-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}


/* =============================================================================
   PATENT OVERVIEW GRID
   4-column grid of "stat" cards below the hero — shows Patent Number, Filed,
   Granted, and Classification at a glance.
   On mobile (≤768px) this collapses to 2 columns.
   ============================================================================= */

.project-overview {
    width: 85%;
    position: relative;
    margin: 0 auto;
    margin-bottom: 2.5rem;
}

.overview-grid {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

/* Each stat card: subtle border with a very faint background */
.overview-item {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--primary-color);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
}

/* Label (e.g. "PATENT NUMBER") — small uppercase, accent color */
.overview-item h3 {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--primary-color);
    margin: 0 0 0.5rem;
}

/* Value (e.g. "US10624491B1") — bold white text */
.overview-item p {
    font-size: 1rem;
    font-weight: 600;
    color: var(--light-text);
    margin: 0;
}

@media (max-width: 1024px) {
    .overview-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .overview-item h3 {
        font-size: 0.75rem;
    }

    .overview-item p {
        font-size: 0.95rem;
    }
}

@media (max-width: 768px) {
    .project-overview {
        width: 100%;
        margin-bottom: 2rem;
    }

    .overview-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .overview-item {
        padding: 1.25rem;
    }

    .overview-item h3 {
        font-size: 0.7rem;
    }

    .overview-item p {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .overview-grid {
        grid-template-columns: 1fr;
        gap: 0.8rem;
    }

    .overview-item {
        padding: 1rem;
    }

    .overview-item h3 {
        font-size: 0.65rem;
        letter-spacing: 0.5px;
    }

    .overview-item p {
        font-size: 0.85rem;
    }
}


/* =============================================================================
   FEATURES GRID (Key Benefits)
   2×2 grid of feature cards. Centered at 75% of the section width on desktop.
   Collapses to a single column on mobile.
   ============================================================================= */

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
    margin: 0 auto 4.5rem;
    /* auto left/right centers the grid within .content-section */
}

/* Feature card: subtle border, centered content, hover accent */
.feature-item {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    padding: 1rem;
    transition: border-color 0.3s ease;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Highlight border on hover to add interactivity */
.feature-item:hover {
    border-color: var(--primary-color);
}

/* Emoji icon displayed at the top of each feature card */
.feature-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.feature-item h4 {
    font-size: 1.1rem;
    margin-bottom: 0.4rem;
    color: var(--light-text);
}

/* Muted description text */
.feature-item p {
    color: var(--gray-text);
    line-height: 1.7;
    margin: 0;
}

/* Features grid mobile styles */
@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
}


/* =============================================================================
   PROCESS TIMELINE (How It Works)
   Vertical list of numbered steps. Each step has a circular orange badge
   on the left and the step content on the right — more visual than a plain
   numbered list while remaining semantic and accessible.
   ============================================================================= */

.process-timeline {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    margin-bottom: 2.5rem;
}

/* Each step is a horizontal row: number badge + content side by side */
.timeline-step {
    display: flex;
    gap: 1.25rem;
    align-items: flex-start;
}

/* Circular numbered badge */
.step-number {
    width: 2.25rem;
    height: 2.25rem;
    min-width: 2.25rem;
    /* prevents the circle from squishing on small screens */
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.95rem;
    color: white;
}

.step-content h4 {
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
    color: var(--light-text);
}

.step-content p {
    color: var(--gray-text);
    line-height: 1.7;
    margin: 0;
}


/* =============================================================================
   TECHNICAL SPECIFICATIONS
   2-column grid of label/value pairs. Each .spec-item has an accent-colored
   label and a white value — visually similar to a definition list but
   styled with the site's card aesthetic.
   ============================================================================= */

.tech-specs {
    margin-bottom: 2.5rem;
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

/* Each spec row: faint background, accent border, flex row for label + value */
.spec-item {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--primary-color);
    border-radius: 8px;
    padding: 0.85rem 1.25rem;
    display: flex;
    gap: 0.75rem;
    align-items: baseline;
}

/* Label (e.g. "Brew Time:") — orange, bold, no-wrap so it never breaks mid-word */
.spec-label {
    color: var(--primary-color);
    font-weight: 600;
    white-space: nowrap;
    font-size: 0.9rem;
}

/* Value (e.g. "10 minutes") — white, readable size */
.spec-value {
    color: var(--light-text);
    font-size: 1rem;
}

@media (max-width: 768px) {
    .specs-grid {
        grid-template-columns: 1fr;
    }
}


/* =============================================================================
   CALLOUT BOX
   High-visibility box with a warm orange tint used to surface the key
   "what this demonstrates" message for recruiters quickly scanning the page.
   Sits between the tech specs and the patent documentation heading.
   ============================================================================= */

.callout-box {
    background: rgba(255, 107, 53, 0.07);
    /* very faint orange tint */
    border: 1px solid var(--primary-color);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2.5rem;
}

/* Heading in accent color to draw immediate attention */
.callout-box h4 {
    font-size: 1.15rem;
    color: var(--primary-color);
    margin-bottom: 0.75rem;
}

.callout-box p {
    color: var(--gray-text);
    line-height: 1.8;
    margin: 0;
}


/* =============================================================================
   PATENT DOCUMENT VIEWER
   Container for the inline PDF display. Consists of:
     - .patent-doc-header: flex row with two action buttons
         left  → "View on Google Patents" (secondary/outline style)
         right → "Download PDF" (primary/filled style)
         justify-content: space-between handles the left/right split
     - .patent-iframe: the full PDF embedded inline at 800px tall

   NOTE: The rgba border value in .patent-document intentionally uses 0. as the
   alpha (effectively transparent) — the visual border comes from the rounded
   corner radius of the overflow-hidden container instead.
   ============================================================================= */

.patent-document {
    margin: 2.5rem 0;
    border-radius: 12px;
    overflow: hidden;
}


.patent-doc-header {
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 1rem;
    background: rgba(255, 255, 255, .07);
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

/* Inline PDF frame — white background so the patent document is readable */
.patent-iframe {
    width: 100%;
    height: 1345px;
    border: none;
    display: block;
    background: #fff;
    position: relative;
    align-self: center;
    transform-origin: top center;
}

@media (max-width: 768px) {
    .patent-iframe {
        zoom: 75%;
        height: 695px;
        /* smaller zoom on tablets */
    }
}

@media (max-width: 480px) {
    .patent-iframe {
        zoom: 60%;
        height: 453px;
        /* even smaller on phones */
    }
}


/* =============================================================================
   CALL TO ACTION (CTA)
   Closing section that prompts visitors to get in touch.
   Centered text with a top border separator, followed by two flex buttons.
   ============================================================================= */

.project-cta {
    text-align: center;
    padding: 3rem 0 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.07);
}

.project-cta h2 {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    margin-bottom: 1rem;
}

.project-cta p {
    color: var(--gray-text);
    max-width: 600px;
    margin: 0 auto 2rem;
    line-height: 1.8;
}

/* Button group: centered, wraps on small screens so buttons never overlap */
.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}



/* =============================================================================
   LIGHTBOX
   Full-screen image viewer triggered by clicking a portfolio image card.
   Three layers inside the overlay:
     - .lightbox-close  : X button (top-right)
     - .lightbox-prev/next : arrow buttons (vertically centered, left/right)
     - .lightbox-content : centered image + caption
   The overlay itself acts as the close backdrop (click outside image to close).
   ============================================================================= */

/* Pointer cursor on image cards signals they are clickable */
.portfolio-grid .portfolio-image {
    cursor: pointer;
}

/* Full-screen dark overlay — hidden by default, shown via .active class */
.lightbox {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.92);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.lightbox.active {
    display: flex;
}

/* Centered image + caption wrapper */
.lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    text-align: center;
}

/* Image scales to fit the viewport while preserving aspect ratio */
.lightbox-img {
    max-width: 90vw;
    max-height: 82vh;
    object-fit: contain;
    border-radius: 4px;
    display: block;
    margin: 0 auto;
}

/* Caption shown below the image (populated from the card's h3 text) */
.lightbox-caption {
    color: rgba(255, 255, 255, 0.7);
    margin-top: 0.75rem;
    font-size: 0.95rem;
    letter-spacing: 0.02em;
}

/* Close button — top-right corner */
.lightbox-close {
    position: fixed;
    top: 1.25rem;
    right: 1.75rem;
    font-size: 2.5rem;
    line-height: 1;
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    opacity: 0.75;
    transition: opacity 0.2s;
    z-index: 1001;
}

.lightbox-close:hover {
    opacity: 1;
}

/* Shared styles for prev and next arrow buttons */
.lightbox-prev,
.lightbox-next {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    font-size: 4rem;
    line-height: 1;
    background: none;
    border: none;
    color: #FF6B35;
    cursor: pointer;
    opacity: 0.6;
    padding: 0 1.25rem;
    transition: opacity 0.2s;
    z-index: 1001;
    user-select: none;
}

.lightbox-prev {
    left: 0;
}

.lightbox-next {
    right: 0;
}

.lightbox-prev:hover,
.lightbox-next:hover {
    opacity: 1;
}

.mb-3 {
    margin-bottom: 3rem;

}