/* ============================================
   RESET
============================================ */

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

body {
    font-family: 'JetBrains Mono', monospace;
    background: #000;
    color: #fff;
    overflow-x: hidden;
    animation: fadeIn 1s ease-in;
}

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

/* ============================================
   BACKGROUND VIDEO
============================================ */

.background-video,
.background-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

.background-overlay {
    background-image: url('images/landing_background.jpg');
    background-size: cover;
    background-position: center;
    display: none;
}

/* ============================================
   HERO SECTION
============================================ */

.projects-hero {
    position: relative;
    width: 100%;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* ============================================
   DESKTOP NAV
============================================ */

.projects-nav {
    position: relative;
    z-index: 10;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    padding: 2rem;
    flex-wrap: wrap;
}

.nav-link {
    font-family: 'Poppins', sans-serif;
    font-size: clamp(0.9rem, 1.2vw, 1.1rem);
    font-weight: 700;
    color: #fff;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 4px 8px;
    border-radius: 4px;
    position: relative;
    z-index: 0;
    display: inline-block;
    transition: transform 0.3s ease;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

/* Animated glow on hover */
.nav-link:before {
    content: '';
    background: linear-gradient(45deg, #ffffff, #000000, #ffffff, #000000, #ffffff, #000000, #ffffff, #000000, #ffffff);
    position: absolute;
    top: -2px;
    left: -2px;
    background-size: 400%;
    z-index: -1;
    filter: blur(5px);
    width: calc(100% + 4px);
    height: calc(100% + 4px);
    animation: glowing 20s linear infinite;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
    border-radius: 4px;
}

.nav-link:after {
    z-index: -1;
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: transparent;
    left: 0;
    top: 0;
    border-radius: 4px;
}

.nav-link:hover { transform: translateY(-2px); }
.nav-link:hover:before { opacity: 1; }
.nav-link:active { transform: translateY(0); color: #000; }

@keyframes glowing {
    0%   { background-position: 0 0; }
    50%  { background-position: 400% 0; }
    100% { background-position: 0 0; }
}

.nav-divider {
    color: #fff;
    font-size: clamp(0.9rem, 1.2vw, 1.1rem);
    user-select: none;
}

/* PROJECTS split styling */
.projects-link {
    display: inline-flex;
    align-items: baseline;
}

.projects-white { color: #fff; }

.projects-black {
    color: #000;
    background: #fff;
    padding: 2px 4px;
    border-radius: 2px;
    margin-left: -2px;
    transition: box-shadow 0.3s ease;
}

.projects-link:hover .projects-black {
    box-shadow:
        0 0 10px rgba(255,255,255,0.8),
        0 0 20px rgba(255,255,255,0.6),
        0 0 30px rgba(255,255,255,0.4);
}

.projects-link:before {
    content: '';
    background: linear-gradient(45deg, #ffffff, #000000, #ffffff, #000000, #ffffff, #000000, #ffffff, #000000, #ffffff);
    position: absolute;
    top: -2px;
    left: -2px;
    background-size: 400%;
    z-index: -1;
    filter: blur(5px);
    width: calc(100% + 4px);
    height: calc(100% + 4px);
    animation: glowing 20s linear infinite;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
    border-radius: 4px;
}

.projects-link:hover:before { opacity: 1; }

/* Active state for projects page */
.projects-active {
    background: rgba(255,255,255,0.15);
    border-radius: 4px;
}

/* ============================================
   PAGE TITLE
============================================ */

.projects-title-container {
    position: relative;
    z-index: 2;
    text-align: center;
    margin-top: 1rem;
}

.projects-title {
    font-family: 'Poppins', sans-serif;
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
}

.projects-subtitle {
    font-size: 1.2rem;
    opacity: 0.8;
}

/* ============================================
   PROJECTS GRID
============================================ */

.projects-grid {
    position: relative;
    z-index: 2;
    max-width: 1400px;
    margin: 3rem auto;
    padding: 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.section-header {
    grid-column: 1 / -1;
    text-align: center;
    font-family: 'Poppins', sans-serif;
    font-size: clamp(1.4rem, 3vw, 2rem);
    font-weight: 700;
    margin-bottom: 0.5rem;
}

/* ============================================
   PROJECT CARD
============================================ */

.project-card {
    background: rgba(0,0,0,0.55);
    border: 1px solid rgba(255,255,255,0.15);
    backdrop-filter: blur(10px);
    border-radius: 10px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 0 20px rgba(255,255,255,0.25);
}

.project-image-wrapper {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.project-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}

.project-card:hover .project-image {
    transform: scale(1.05);
}

.project-body {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    flex: 1;
}

.project-title {
    font-family: 'Poppins', sans-serif;
    font-size: 1.15rem;
    font-weight: 700;
}

.project-desc {
    font-size: 0.9rem;
    line-height: 1.65;
    opacity: 0.9;
    flex: 1;
}

.project-tech {
    font-size: 0.82rem;
    opacity: 0.75;
    margin-top: 0.4rem;
}

.project-date {
    font-size: 0.82rem;
    opacity: 0.65;
    font-style: italic;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    width: fit-content;
    margin-top: 0.4rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.75);
    text-decoration: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    padding-bottom: 1px;
    transition: color 0.25s ease, border-color 0.25s ease;
}

.project-link:hover,
.project-link:focus-visible {
    color: #ffffff;
    border-bottom-color: #ffffff;
}

/* ============================================
   MOBILE HEADER + MENU
============================================ */

.mobile-header {
    display: none;
}

@media (max-width: 768px) {

    .projects-nav {
        display: none;
    }

    .mobile-header {
        position: relative;
        z-index: 20;
        width: 100%;
        padding: 1.2rem 1rem;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .mobile-name {
        font-family: 'Poppins', sans-serif;
        font-size: 1.4rem;
        font-weight: 800;
    }

    .hamburger {
        width: 32px;
        height: 24px;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        cursor: pointer;
        z-index: 30;
    }

    .hamburger span {
        display: block;
        height: 3px;
        background: #fff;
        transition: 0.4s;
    }

    .menu-toggle {
        display: none;
    }

    .menu-toggle:checked + .hamburger span:nth-child(1) {
        transform: translateY(10px) rotate(45deg);
    }
    .menu-toggle:checked + .hamburger span:nth-child(2) {
        opacity: 0;
    }
    .menu-toggle:checked + .hamburger span:nth-child(3) {
        transform: translateY(-10px) rotate(-45deg);
    }

    .mobile-menu {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0,0,0,0.85);
        backdrop-filter: blur(4px);
        opacity: 0;
        visibility: hidden;
        transition: 0.4s ease;
        display: flex;
        justify-content: center;
        align-items: center;
        z-index: 25;
    }

    .menu-toggle:checked ~ .mobile-menu {
        opacity: 1;
        visibility: visible;
    }

    .mobile-menu ul {
        list-style: none;
        text-align: center;
    }

    .mobile-menu ul li {
        margin: 20px 0;
        opacity: 0;
        transform: translateY(20px);
        animation: fadeUp 0.6s forwards;
    }

    .mobile-menu ul li:nth-child(1) { animation-delay: 0.2s; }
    .mobile-menu ul li:nth-child(2) { animation-delay: 0.35s; }
    .mobile-menu ul li:nth-child(3) { animation-delay: 0.5s; }
    .mobile-menu ul li:nth-child(4) { animation-delay: 0.65s; }
    .mobile-menu ul li:nth-child(5) { animation-delay: 0.8s; }

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

    .mobile-menu ul li a {
        font-family: 'Poppins', sans-serif;
        font-size: 2rem;
        font-weight: 700;
        color: #fff;
        text-decoration: none;
        transition: 0.3s;
    }

    .mobile-menu ul li a:hover {
        color: #ffeba7;
    }

    .active-mobile {
        color: #ffeba7 !important;
    }

    /* Stack cards to single column on mobile */
    .projects-grid {
        grid-template-columns: 1fr;
        padding: 1rem;
        margin: 2rem auto;
    }

    .projects-title {
        font-size: clamp(1.8rem, 8vw, 2.5rem);
    }

    .projects-subtitle {
        font-size: 1rem;
    }

    .section-header {
        font-size: 1.4rem;
    }
}

@media (max-width: 480px) {
    .project-image-wrapper {
        height: 160px;
    }
}

/* ============================================
   ACCESSIBILITY
============================================ */

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

.nav-link:focus-visible,
.mobile-menu ul li a:focus-visible {
    outline: 2px solid #ffffff;
    outline-offset: 4px;
    border-radius: 4px;
}

.skip-link {
    position: absolute;
    top: -48px;
    left: 0;
    background: #000000;
    color: #ffffff;
    padding: 10px 18px;
    text-decoration: none;
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    z-index: 10001;
    transition: top 0.2s ease;
}

.skip-link:focus {
    top: 0;
    outline: 2px solid #ffffff;
    outline-offset: 2px;
}