/* Design tokens */
:root {
    --color-bg: #212529;
    --color-surface: #2B3035;
    --color-hover-surface: #3a4046;
    --color-muted-surface: #343a40;

    --h1-color: #e3e0e9;
    --h2-color: #e3e0e9;
    --h3-color: #e3e0e9;
    --p-color: #b3acbe;
    --a-color: #b3acbe;
    --i-color: #b3acbe;
    --div-color: #b3acbe;
    --span-color: #b3acbe;


    --color-border: #8f8f8f;
    --color-border-muted: #e9ecef33;

    --shadow-md: 0px 5px 8px #1a1a1a;
    --shadow-lg: 0px 10px 8px #1a1a1a;
    --shadow-lg-hover: 0px 14px 16px #16191c;

    --radius-md: 8px;
    --radius-lg: 12px;

    --gap-md: 20px;
    --nav-height: 60px;
    --width-main: 60%;
    --width-narrow: 90%;
}

html {
    scroll-behavior: smooth; /* smooth scrolling for anchor links */
}

/* Better box model for consistent sizing */
*, *::before, *::after { box-sizing: border-box; }

body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh; /* ensures full viewport height */
    margin: 0;
    background-color: var(--color-bg);
    font-family: 'Roboto', Arial, Helvetica, sans-serif;

    background: linear-gradient(90deg, rgba(33, 37, 41, 1) 0%, rgba(60, 65, 74, 1) 50%, rgba(33, 37, 41, 1) 100%);
}

body h1 {
    color: var(--h1-color);
    font-family: "lora", serif;
}

body h2 {
    color: var(--h2-color);
}

body h3 {
    font-size: 30px;
    color: var(--h3-color);
}

body p {
    color: var(--p-color);
}

body a {
    color: var(--a-color);
}

body i {
    color: var(--i-color);
}

body div {
    color: var(--div-color);
}

body span {
    color: var(--span-color);
}

.Content {
    display: flex;
    flex-direction: column; /* stack children vertically so .Projects is under .Intro */
    align-items: center; /* center sections horizontally */
    min-height: 100vh; /* allow page to grow beyond viewport */
    width: 100%;
}

.Nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--nav-height);
    background: var(--color-surface);
    color : black;
    z-index: 1000;
    box-shadow: var(--shadow-lg);

    display: flex;
    justify-content: flex-start;
    align-items: center;

}

.nav-link {
    display: inline-block;
    line-height: normal;
    height: auto;
    padding: 10px 20px;
    margin-left: 20px;
    text-decoration: none;
    font-weight: bold;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-muted-surface);
    box-shadow: var(--shadow-md);
    color: #e3e0e9;
}

.nav-link:hover {
    background: var(--color-hover-surface);
    transform: translateY(-2px);
    transition: transform 0.2s ease;
}

.Intro {
    margin-top: calc(var(--nav-height) + 20px); /* avoid overlap with fixed nav */
    text-align: center;
    width: var(--width-main);
    margin-left: auto;
    margin-right: auto;
}

.About {
    /* two-column layout: photo left, text+links right */
    display: grid;
    grid-template-columns: minmax(220px, 320px) 1fr;
    column-gap: var(--gap-md);
    row-gap: 0;
    align-items: start;
    margin-left: auto;
    margin-right: auto;
    width: 100%;
    padding: 0; /* container has no background */
    background: transparent;
    box-shadow: none;
}

/* Right column wrapper to stack description + links tightly */
.About-right {
    display: grid;
    grid-template-rows: 1fr auto; /* description grows, links at bottom */
    gap: 10px;
    height: 100%;
    min-width: 400px;
}

@media (max-width: 1320px) {
    .About {
        grid-template-columns: 1fr; /* single column */
        grid-template-rows: auto auto;
        text-align: center;
    }

    .Photo {
        margin-left: auto;
        margin-right: auto; /* center photo in single column layout */
        justify-self: center; /* center photo in single column layout */
        margin-bottom: var(--gap-md); /* space below photo */
    }

    .About-right {
        min-width: 0; /* remove fixed min-width to allow shrinking */
    }
}


.About p { width: 100%; }

/* Photo block */
.Photo {
    width: 100%; /* fill the left column */
    max-width: 320px;
    aspect-ratio: 1 / 1; /* square */
    border-radius: var(--radius-lg);
    background: #1f2327 center/cover no-repeat; /* placeholder bg */
    box-shadow: var(--shadow-lg);
    background-color: var(--color-surface); /* card surface */
    justify-self: start; /* align left */
    overflow: hidden; /* avoid visual overflow */
}

/* Right column content */
.Description {
    align-self: stretch; /* fill available height */
    display: flex;
    flex-direction: column;
    height: 100%;
    background: var(--color-surface);
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-lg);
    padding: 20px;
    text-align: left;
}

.Links-About {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 0; /* tight under description via wrapper gap */
    background: var(--color-surface);
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-lg);
    padding: 16px;
    align-self: stretch; /* fill right column width */
    width: 100%;
}

.about-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1px solid var(--color-border);
    padding: 10px 14px;
    border-radius: var(--radius-md);
    text-decoration: none;
    background: var(--color-muted-surface);
    box-shadow: var(--shadow-md);
    transition: transform 0.2s ease-out;
}

.about-link:hover {
    background: var(--color-hover-surface);
    transform: translateY(-2px);
    transition: transform 0.2s ease;
}

.info-container {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    width: 100%;
    margin-left: auto;
    margin-right: auto;
    gap: var(--gap-md);
}

.Skills {
    flex: 1;
    margin-top: 20px;
    min-height: 100px;
    margin-left: auto;
    margin-right: auto;
}

.Skill-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    grid-template-rows: repeat(1, 1fr);
    gap: 10px;
    width: 100%;
}

.Skill-item {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px;
    font-size: clamp(12px, 2vw, 20px);
    background: var(--color-surface);
    box-shadow: var(--shadow-md);
    border-radius: var(--radius-md);
    text-align: center;
    aspect-ratio: 1 / 1; /* make square */

    flex-direction: column;
    gap: 20px;
    position: relative;
    transform-style: preserve-3d;
    will-change: transform;
    transition: transform 0.15s ease;
    perspective: 600px;
}

.Skill-item:hover { 
    z-index: 10; 
    transform: scale(1.2);
    background: var(--color-hover-surface);
 }

.Skill-item i {
    font-size: clamp(12px, 2vw, 32px);
    color: var(--h1-color);
}

.Skills p,
.Contact p {
    width: 80%;
    border: 1px solid var(--color-border);
    padding: 12px 16px;
    border-radius: var(--radius-md);
    margin-bottom: 15px;
    margin-left: auto;
    margin-right: auto;
    box-shadow: var(--shadow-md);
    text-align: left;
}

.Skills p:hover,
.Contact p:hover {
    transform: translateY(-2px);
    transition: transform 0.2s ease;
    background: var(--color-hover-surface);
}

.Contact p i,
.Skills p i,
.Contact p svg,
.Skills p svg {
  margin-right: 10px; /* Adjust the value as needed */
  vertical-align: middle; /* Optional: aligns icon with text */
}

.Projects {
    width: var(--width-main);
    margin-left: auto;
    margin-right: auto;
    margin-top: 40px;
    text-align: center;
    padding-bottom: calc(var(--gap-md) * 5);
}

/* Shared surface for card-like blocks */
.Contact, .project-card {
    background: var(--color-surface);
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-lg);
}

/* Projects grid and reusable card */
.project-stack {
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 20px;
    width: 100%;
    margin-top: var(--gap-md);
}

.project-card {
    margin-top: var(--gap-md);
    padding: 18px;
    text-align: left;
    min-height: 500px; /* allow growth if images need more space */
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.project-card h3 {
    margin-top: 0;
    margin-bottom: 8px;
}

.project-card p {
    margin-top: 0;
}

.project-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 12px 0;
}

.tag {
    border: 1px solid var(--color-border-muted);
    background: var(--color-muted-surface);
    padding: 4px 8px;
    border-radius: 999px;
    font-size: 12px;
}

.project-links {
    display: flex;
    gap: 12px;
    margin-top: 8px;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: 1px solid var(--color-border);
    padding: 8px 12px;
    border-radius: var(--radius-md);
    text-decoration: none;
    box-shadow: var(--shadow-md);
}

.project-link:hover {
    background: var(--color-hover-surface);
    transform: translateY(-2px);
    transition: transform 0.2s ease;
}

/* Project screenshots: one big hero on top, rest below in grid (max 3 columns) */
.Project-Images {
    margin-top: 14px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    padding-top: 10px;
}

/* Media tiles inside the grid (images and videos share the same look) */
.Project-Images > img,
.Project-Images > video {
    width: 100%;
    object-fit: cover;
    border-radius: var(--radius-lg);
    background: var(--color-surface);
    box-shadow: var(--shadow-lg);
    display: block;
}

/* Extra UX for images only */
.Project-Images > img {
    user-select: none;
    -webkit-user-drag: none;
    cursor: zoom-in; /* indicate click-to-zoom */
}

/* Hero image spans full width and uses cinematic ratio */
.Project-Images > :first-child {
    grid-column: 1 / -1;
    aspect-ratio: 16 / 9;
}

/* Thumbnails are square below the hero */
.Project-Images > :not(:first-child) {
    aspect-ratio: 1 / 1;
}

.Project-Images > img:hover {
    transform: translateY(-2px);
    transition: transform 0.2s ease;
}

/* Responsive: reduce columns on smaller screens */
@media (max-width: 1024px) {
    .Project-Images { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
    .Project-Images { grid-template-columns: 1fr; }
}

/* Lightbox overlay */
.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.85);
    display: none; /* toggled by .open */
    align-items: center;
    justify-content: center;
    padding: 24px;
    z-index: 2000; /* above fixed nav */
}

.lightbox.open { display: flex; }

.lightbox-img {
    max-width: 92vw;
    max-height: 92vh;
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 40px rgba(0,0,0,0.6);
}

.lightbox-close {
    position: absolute;
    top: 12px;
    right: 16px;
    font-size: 28px;
    line-height: 1;
    padding: 6px 10px;
    color: #fff;
    background: transparent;
    border: none;
    cursor: pointer;
}

/* Responsive tweaks */
@media (max-width: 768px) {
    .About {
        grid-template-columns: 1fr; /* stack */
        text-align: center;
    }
    .Links-About { 
        justify-content: center; 
    }
    .Description { 
        justify-self: center; 
    }
    .Photo { 
        width: 100%;
        aspect-ratio: 1 / 1;  
        margin-left: auto; 
        margin-right: auto; 
    }
    .Skills { 
        width: 100%; 
    }
    .Intro, .Projects { width: var(--width-narrow); }
    .About .info-container { width: 100%; }
    .project-stack { width: 100%; }
    .Skills p, .Contact p { width: var(--width-narrow); }
}

/* Bottom call-to-action button that appears when user scrolls to the page bottom */
.bottom-cta {
    position: fixed;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    bottom: 20px;
    z-index: 1600;
    padding: 12px 18px;
    border-radius: 100px;
    background: var(--color-hover-surface);
    color: var(--h1-color);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: opacity 220ms ease, transform 220ms ease, visibility 220ms;
    font-weight: 600;
}


.bottom-cta.visible {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

@media (max-width: 560px) {
    /* place to the right on very small screens so it doesn't overlay centered content */
    .bottom-cta {
        left: auto;
        right: 16px;
        transform: none;
        bottom: 14px;
        padding: 10px 14px;
    }
}

/* Unity modal to host WebGL build (iframe) */
.unity-modal {
    position: fixed;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0.85);
    z-index: 3000;
    padding: 16px;
}
.unity-modal.open { display: flex; }
.unity-iframe {
    width: min(1200px, 98vw);
    height: min(720px, 92vh);
    border: none;
    border-radius: var(--radius-md);
    box-shadow: 0 20px 60px rgba(0,0,0,0.6);
    background: #000;
}
.unity-close {
    position: absolute;
    top: 18px;
    right: 18px;
    z-index: 3100;
    background: transparent;
    border: none;
    color: var(--h1-color);
    font-size: 26px;
    cursor: pointer;
}

@media (max-width: 900px) {
    .unity-iframe { width: 98vw; height: 86vh; }
}