/* --- Variables --- */
:root {
    --bg-color: #0f121a;
    --text-color: #d1d9e6;
    --accent-color: #9fb1d9;
    --muted-color: #788296;
    --card-bg: rgba(30, 35, 48, 0.5);
    --border-color: rgba(159, 177, 217, 0.15);
    --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --glass-blur: blur(14px);
}

/* --- Reset & Base --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

#bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

h1,
h2,
h3 {
    font-family: 'Instrument Serif', serif;
    font-weight: 400;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 4rem 2rem;
    position: relative;
    z-index: 1;
}

/* --- Navigation --- */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--muted-color);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
}

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

.lang-selector {
    display: flex;
    gap: 0.5rem;
    background: var(--card-bg);
    padding: 0.3rem;
    border-radius: 50px;
    border: 1px solid var(--border-color);
    backdrop-filter: var(--glass-blur);
}

.lang-btn {
    background: none;
    border: none;
    color: var(--muted-color);
    padding: 0.3rem 0.8rem;
    border-radius: 50px;
    cursor: pointer;
    font-size: 0.75rem;
    transition: var(--transition);
}

.lang-btn.active {
    background: var(--accent-color);
    color: var(--bg-color);
    font-weight: 600;
}

/* --- Header Section --- */
header {
    margin-bottom: 5rem; /* Default for index, about might override if needed but 5rem is fine */
    animation: fadeIn 1.2s ease-out;
}

.brand {
    font-size: 1.2rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
    display: block;
    letter-spacing: 0.1em;
    opacity: 0.8;
}

h1 {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: #e2e8f0;
}

.intro-text {
    font-size: 1.1rem;
    color: var(--muted-color);
    max-width: 600px;
}

/* --- Meta Row (Index) --- */
.header-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
    margin-bottom: 3rem;
}

.status-bar {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.6rem 1.2rem;
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: 100px;
    font-size: 0.85rem;
}

.pulse {
    width: 8px;
    height: 8px;
    background-color: #a3d9d9;
    border-radius: 50%;
    animation: pulse-animation 2s infinite;
}

.music-player {
    display: inline-flex;
    align-items: center;
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: 100px;
    padding: 0.4rem 0.6rem;
    overflow: hidden;
    max-width: 280px;
}

.music-player iframe {
    height: 20px;
    width: 240px;
    border: none;
    filter: invert(1) hue-rotate(180deg) opacity(0.6);
}

/* --- Grid (Index) --- */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.card {
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    padding: 2.2rem;
    border-radius: 18px;
    transition: var(--transition);
    text-decoration: none;
    color: inherit;
    display: block;
}

.card:hover {
    transform: translateY(-8px);
    background: rgba(50, 58, 78, 0.5);
    border-color: rgba(159, 177, 217, 0.4);
}

.card h3 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
    color: #f1f5f9;
}

.card p {
    color: var(--muted-color);
    font-size: 0.95rem;
}

.tag {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent-color);
    margin-bottom: 0.85rem;
    display: block;
    font-weight: 600;
}

/* --- Projects Section (Index) --- */
.projects-section {
    margin-top: 6rem;
    padding: 3.5rem;
    border-radius: 28px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(145deg, rgba(159, 177, 217, 0.1), rgba(15, 18, 26, 0.6));
    border: 1px solid var(--border-color);
    backdrop-filter: var(--glass-blur);
}

.projects-section h2 {
    font-size: 2.8rem;
    margin-bottom: 1rem;
    color: #f1f5f9;
}

.project-list {
    list-style: none;
    margin-top: 1.5rem;
}

.project-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.75rem;
    color: var(--text-color);
}

.project-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-color);
}

/* --- Links Grid (About) --- */
.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.link-card {
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    border-radius: 16px;
    transition: var(--transition);
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    text-align: center;
}

.link-card:hover {
    transform: translateY(-5px);
    background: rgba(50, 58, 78, 0.6);
    border-color: var(--accent-color);
}

.link-card h3 {
    font-size: 1.4rem;
    color: #f1f5f9;
    margin-bottom: 0;
}

.link-card p {
    color: var(--muted-color);
    font-size: 0.85rem;
}

.link-icon {
    font-size: 1.5rem;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

/* --- Easter Egg Section --- */
.easter-egg-container {
    margin-top: 8rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    text-align: center;
}

.survey-corps-icon {
    width: 40px;
    height: 40px;
    cursor: pointer;
    opacity: 0.3;
    transition: var(--transition);
    fill: var(--accent-color);
}

.survey-corps-icon:hover {
    opacity: 0.8;
    transform: scale(1.1);
}

.dedicate-text {
    font-family: 'Instrument Serif', serif;
    font-style: italic;
    font-size: 1.2rem;
    color: var(--accent-color);
    opacity: 0;
    transform: translateY(10px);
    transition: all 1s ease;
    pointer-events: none;
}

.dedicate-text.show {
    opacity: 1;
    transform: translateY(0);
}

/* --- Footer --- */
footer {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--muted-color);
    font-size: 0.85rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.clock {
    color: var(--accent-color);
    font-family: monospace;
}

/* --- Loading Screen --- */
#loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-color);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.8s ease-out, visibility 0.8s;
}

.loader-content {
    font-family: 'Instrument Serif', serif;
    font-size: 2rem;
    color: var(--accent-color);
    letter-spacing: 0.1em;
    animation: pulse-loader 1.5s infinite ease-in-out;
}

/* --- Animations --- */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse-animation {
    0% { box-shadow: 0 0 0 0px rgba(163, 217, 217, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(163, 217, 217, 0); }
    100% { box-shadow: 0 0 0 0px rgba(163, 217, 217, 0); }
}

@keyframes pulse-loader {
    0%, 100% { opacity: 0.5; transform: scale(0.95); }
    50% { opacity: 1; transform: scale(1.05); }
}

body.loaded #loader {
    opacity: 0;
    visibility: hidden;
}

/* --- Media Queries --- */
@media (max-width: 600px) {
    h1 { font-size: 2.8rem; }
    .container { padding: 2rem 1.5rem; }
    .header-meta { flex-direction: column; align-items: flex-start; }
    .links-grid { grid-template-columns: 1fr; }
}