/* Base Variables & Reset */
:root {
    --bg-color: #050505;
    --text-color: #f0f0f0;
    --accent-color: #5ab4c5;
    --nav-hover: #ffffff;
    --font-main: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    --overlay: rgba(5, 5, 5, 0.65); 
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-main);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Header & Navigation */
header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    background-color: rgba(5, 5, 5, 0.95);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.logo-link {
    text-decoration: none;
    color: var(--text-color);
}

.logo {
    font-size: 1.2rem;
    font-weight: 300;
    letter-spacing: 2px;
    transition: color 0.3s ease, opacity 0.4s ease, transform 0.4s ease, visibility 0.4s ease;
    opacity: 0;
    visibility: hidden; 
    transform: translateY(-10px);
}

.logo.scrolled-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.logo:hover {
    color: var(--accent-color);
}

/* Hamburger Menu Icon (Hidden on Desktop) */
.menu-toggle {
    display: none;
    cursor: pointer;
    z-index: 1001;
}

.menu-toggle .bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    transition: all 0.3s ease;
    background-color: var(--text-color);
}

nav {
    margin-left: auto;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

nav a {
    text-decoration: none;
    color: #a0a0a0;
    font-size: 0.85rem;
    letter-spacing: 1px;
    transition: color 0.3s ease, transform 0.2s ease;
}

nav a:hover {
    color: var(--nav-hover);
    transform: translateY(-2px);
}

/* Scrolling Sections & Background Images */
.page-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 5% 2rem 5%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    position: relative;
}

/* Image Assignments */
.section-home { background-image: linear-gradient(var(--overlay), var(--overlay)), url("img/blue_harness_front.jpg"); }
.section-about { background-image: linear-gradient(var(--overlay), var(--overlay)), url("img/yellow_shoe_side.jpg"); }
.section-portfolio { background-image: linear-gradient(var(--overlay), var(--overlay)), url("img/blue_shoe_side.jpg"); }

.section-contact { background-image: linear-gradient(var(--overlay), var(--overlay)), url("img/smart.jpg"); }

/* Hero Content for Home Section */
.hero-content {
    text-align: center;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 300;
    letter-spacing: 8px;
    margin-bottom: 1rem;
    color: #ffffff;
}

.hero-content p {
    font-size: 1.2rem;
    letter-spacing: 2px;
    color: #cccccc;
    text-transform: uppercase;
}

/* Content Boxes */
.content-box {
    background: rgba(10, 10, 10, 0.7);
    padding: 3rem;
    border-radius: 10px; /* Updated to 10px */
    max-width: 1000px;
    width: 100%;
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

h2 {
    font-size: 2rem;
    font-weight: 300;
    margin-bottom: 1.5rem;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.about-text p {
    margin-bottom: 1.5rem;
    color: #e0e0e0;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    width: 100%;
}

.portfolio-item {
    border: 1px solid #444;
    background: rgba(0,0,0,0.5);
    padding: 2.5rem 1.5rem;
    border-radius: 10px; /* Added 10px border-radius */
    text-align: center;
    transition: border-color 0.3s ease, transform 0.3s ease;
    cursor: pointer;
}

.portfolio-item:hover {
    border-color: var(--accent-color);
    transform: translateY(-5px);
}

.contact-info p {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: #e0e0e0;
}

/* Scroll Reveal Animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    header {
        padding: 1rem 5%;
        flex-wrap: nowrap; 
    }
    
    .menu-toggle {
        display: block;
    }

    nav {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: rgba(5, 5, 5, 0.98);
        padding: 2rem 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-20px);
        transition: all 0.3s ease;
    }

    nav.nav-active {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    nav ul {
        flex-direction: column;
        align-items: center;
        gap: 2rem;
    }

    nav a {
        font-size: 1.1rem;
    }

    /* Hamburger Animation Classes */
    .menu-toggle.toggle-active .bar:nth-child(1) { transform: translateY(8px) rotate(45deg); }
    .menu-toggle.toggle-active .bar:nth-child(2) { opacity: 0; }
    .menu-toggle.toggle-active .bar:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
    
    .hero-title {
        font-size: 1.5rem; 
        letter-spacing: 4px;
    }

    .hero-content p {
        font-size: 0.9rem;
    }
    
    .content-box {
        padding: 1.5rem;
    }
    
    .page-section {
        background-attachment: scroll;
    }
}