/* ===== Material Design 3 Tokens ===== */
:root {
    --md-primary: #D1C4E9;
    --md-on-primary: #1a122a;
    --md-primary-container: #4a3570;
    --md-on-primary-container: #EADEFF;
    --md-secondary: #B39DDB;
    --md-secondary-container: #372952;
    --md-on-secondary-container: #E8DEF8;
    --md-surface: #13101B;
    --md-surface-variant: #1E1A2A;
    --md-surface-container: #1E1A2A;
    --md-surface-container-high: #282338;
    --md-surface-container-highest: #332D42;
    --md-on-surface: #E8E0F0;
    --md-on-surface-variant: #CAC4D0;
    --md-outline: #938F99;
    --md-outline-variant: #49454F;
    --md-inverse-surface: #E8E0F0;
    --md-inverse-on-surface: #1E1A2A;
    --md-elevation-1: 0 1px 2px rgba(0,0,0,0.3), 0 1px 3px 1px rgba(0,0,0,0.15);
    --md-elevation-2: 0 1px 2px rgba(0,0,0,0.3), 0 2px 6px 2px rgba(0,0,0,0.15);
    --md-elevation-3: 0 4px 8px 3px rgba(0,0,0,0.15), 0 1px 3px rgba(0,0,0,0.3);
    --md-shape-sm: 8px;
    --md-shape-md: 12px;
    --md-shape-lg: 16px;
    --md-shape-xl: 28px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; }

body {
    background-color: var(--md-surface);
    color: var(--md-on-surface);
    font-family: 'Comfortaa', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.5;
}

/* ===== Background Shapes ===== */
#bg-shapes {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.bg-md3-shape {
    position: absolute;
    width: 120px;
    height: 120px;
    overflow: visible;
}

.bg-md3-shape .svg-canvas {
    width: 100%;
    height: 100%;
    overflow: visible;
}

.expressive-snap {
    transform-origin: 60px 60px;
    animation: snapRotate 6s infinite;
}

@keyframes snapRotate {
    0%   { transform: rotate(0deg); animation-timing-function: ease-out; }
    12%  { transform: rotate(15deg); animation-timing-function: ease-in-out; }
    15%  { transform: rotate(5deg); animation-timing-function: cubic-bezier(0.8, 0.0, 0.2, 1); }
    25%  { transform: rotate(135deg); animation-timing-function: linear; }
    37%  { transform: rotate(150deg); animation-timing-function: ease-in-out; }
    40%  { transform: rotate(140deg); animation-timing-function: cubic-bezier(0.8, 0.0, 0.2, 1); }
    50%  { transform: rotate(270deg); animation-timing-function: linear; }
    62%  { transform: rotate(285deg); animation-timing-function: ease-in-out; }
    65%  { transform: rotate(275deg); animation-timing-function: cubic-bezier(0.8, 0.0, 0.2, 1); }
    75%  { transform: rotate(405deg); animation-timing-function: linear; }
    87%  { transform: rotate(420deg); animation-timing-function: ease-in-out; }
    90%  { transform: rotate(410deg); animation-timing-function: cubic-bezier(0.8, 0.0, 0.2, 1); }
    100% { transform: rotate(540deg); animation-timing-function: linear; }
}

/* ===== Language Switcher ===== */
.language-switcher {
    position: fixed;
    top: 16px;
    right: 16px;
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 8px;
}

.md3-icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    height: 40px;
    border: none;
    border-radius: 20px;
    background: transparent;
    color: var(--md-on-surface);
    cursor: pointer;
    transition: background-color 0.2s;
    position: relative;
    overflow: hidden;
    font-family: 'Comfortaa', sans-serif;
    font-size: 0.875rem;
    font-weight: 500;
}

.md3-icon-btn:hover {
    background-color: rgba(208, 196, 233, 0.08);
}

.md3-icon-btn:active {
    background-color: rgba(208, 196, 233, 0.12);
}

#lang-icon {
    font-size: 1.1em;
    line-height: 1;
}

#lang-text {
    font-weight: normal;
}

/* ===== Header ===== */
header {
    text-align: center;
    padding: 48px 24px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    opacity: 0;
    animation: md3-fade-in 0.5s ease-out forwards;
}

.avatar {
    width: 280px;
    height: 280px;
    border-radius: 50%;
    margin-bottom: 24px;
    border: 3px solid var(--md-outline-variant);
    box-shadow: var(--md-elevation-2);
    object-fit: cover;
}

h1 {
    font-size: 3rem;
    font-weight: 400;
    letter-spacing: -0.25px;
    margin: 0 0 8px;
    line-height: 1.2;
}

.gradient-text {
    background: linear-gradient(90deg, #D1C4E9, #B39DDB, #9575CD);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    font-size: 1rem;
    color: var(--md-on-surface-variant);
    letter-spacing: 0.5px;
    margin-bottom: 24px;
    min-height: 1.5em;
    max-width: 90%;
    word-wrap: break-word;
    line-height: 1.5;
    font-family: 'Exo 2', sans-serif;
}

/* ===== MD3 Buttons ===== */
.social-links {
    width: 100%;
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

.button-group {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    max-width: 750px;
    padding: 16px;
    background-color: var(--md-surface-container);
    border-radius: var(--md-shape-xl);
}

.md3-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0 24px;
    height: 40px;
    border-radius: 20px;
    font-family: 'Comfortaa', sans-serif;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.1px;
    text-decoration: none;
    cursor: pointer;
    transition: box-shadow 0.2s, background-color 0.2s;
    border: none;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.md3-btn img {
    width: 20px;
    height: 20px;
    vertical-align: middle;
}

.md3-tonal {
    background-color: var(--md-secondary-container);
    color: var(--md-on-secondary-container);
}

.md3-tonal:hover {
    box-shadow: var(--md-elevation-1);
    filter: brightness(1.1);
}

.md3-tonal:active {
    filter: brightness(0.9);
}

.md3-filled {
    background-color: var(--md-primary);
    color: var(--md-on-primary);
}

.md3-filled:hover {
    box-shadow: var(--md-elevation-1);
    filter: brightness(1.1);
}

.md3-filled:active {
    filter: brightness(0.9);
}

/* ===== MD3 Cards ===== */
.projects {
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.projects h2 {
    text-align: center;
    color: var(--md-primary);
    margin-bottom: 24px;
    font-size: 1.375rem;
    font-weight: 500;
    letter-spacing: 0.1px;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 16px;
}

.md3-card {
    background-color: var(--md-surface-container);
    border-radius: var(--md-shape-md);
    padding: 20px;
    box-shadow: var(--md-elevation-1);
    transition: box-shadow 0.2s, transform 0.2s;
    cursor: pointer;
    border: 1px solid var(--md-outline-variant);
}

.md3-card:hover {
    box-shadow: var(--md-elevation-2);
    transform: translateY(-2px);
}

.md3-card:active {
    transform: translateY(0);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 12px;
}

.card-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--md-shape-sm);
    background-color: var(--md-surface-container-high);
    object-fit: contain;
    padding: 4px;
    flex-shrink: 0;
}

.md3-card h3 {
    margin: 0;
    font-size: 1rem;
    font-weight: 500;
    color: var(--md-on-surface);
    letter-spacing: 0.15px;
    font-family: 'Comfortaa', sans-serif;
}

.card-subtitle {
    color: var(--md-on-surface-variant);
    font-size: 0.875rem;
    letter-spacing: 0.25px;
    margin: 2px 0 0;
    font-family: 'Comfortaa', sans-serif;
}

.card-desc {
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--md-on-surface-variant);
    letter-spacing: 0.25px;
    margin: 0 0 16px;
    font-family: 'Exo 2', sans-serif;
}

/* ===== MD3 Chips ===== */
.md3-chip-set {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.md3-chip {
    display: inline-flex;
    align-items: center;
    height: 32px;
    padding: 0 16px;
    border-radius: 8px;
    background-color: var(--md-surface-container-high);
    color: var(--md-on-surface);
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.1px;
    border: 1px solid var(--md-outline-variant);
    transition: background-color 0.2s, border-color 0.2s;
    cursor: default;
    font-family: 'Comfortaa', sans-serif;
}

.md3-chip:hover {
    background-color: var(--md-surface-container-highest);
    border-color: var(--md-outline);
}

.md3-chip-sm {
    display: inline-flex;
    align-items: center;
    height: 28px;
    padding: 0 12px;
    border-radius: 8px;
    background-color: var(--md-secondary-container);
    color: var(--md-on-secondary-container);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.1px;
    transition: filter 0.2s;
    font-family: 'Comfortaa', sans-serif;
}

.md3-chip-sm:hover {
    filter: brightness(1.15);
}

/* ===== Tech Stack ===== */
.tech-stack {
    padding: 20px;
    max-width: 750px;
    margin: 40px auto;
    text-align: center;
}

.tech-stack h2 {
    color: var(--md-primary);
    margin-bottom: 24px;
    font-size: 1.375rem;
    font-weight: 500;
    letter-spacing: 0.1px;
}

.tech-stack .md3-chip-set {
    padding: 16px;
    background-color: var(--md-surface-container);
    border-radius: var(--md-shape-xl);
}

/* ===== GitHub Stats ===== */
.github-stats {
    padding: 20px;
    max-width: 1200px;
    margin: 40px auto;
    text-align: center;
}

.github-stats h2 {
    color: var(--md-primary);
    margin-bottom: 24px;
    font-size: 1.375rem;
    font-weight: 500;
    letter-spacing: 0.1px;
}

.github-graph-container {
    display: flex;
    justify-content: center;
    padding: 16px;
    border-radius: var(--md-shape-xl);
    background-color: var(--md-surface-container);
    max-width: 700px;
    margin: 0 auto;
    overflow-x: auto;
}

.github-graph-container img {
    display: block;
    max-width: 100%;
    height: auto;
    border-radius: var(--md-shape-sm);
}

/* ===== Now Playing ===== */
.now-playing {
    padding: 20px;
    max-width: 600px;
    margin: 40px auto;
    text-align: center;
}

.now-playing-card {
    background: var(--md-surface-container);
    border: 1px solid var(--md-outline-variant);
    border-radius: var(--md-shape-lg);
    padding: 16px 20px;
    box-shadow: var(--md-elevation-1);
    transition: box-shadow 0.2s, transform 0.2s;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: 20px;
}

.now-playing-card:hover {
    box-shadow: var(--md-elevation-2);
    transform: translateY(-2px);
}

.np-container {
    display: flex;
    align-items: center;
    gap: 20px;
    width: 100%;
}

.np-album-art {
    width: 140px;
    height: 140px;
    border-radius: var(--md-shape-sm);
    box-shadow: var(--md-elevation-1);
    object-fit: cover;
    animation: albumRotate 0.6s ease-out;
    flex-shrink: 0;
}

@keyframes albumRotate {
    from { opacity: 0; transform: scale(0.8) rotateY(20deg); }
    to { opacity: 1; transform: scale(1) rotateY(0deg); }
}

.np-info {
    text-align: left;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.np-badge {
    display: inline-block;
    font-size: 0.6875rem;
    color: var(--md-on-surface-variant);
    letter-spacing: 0.5px;
    text-transform: uppercase;
    font-weight: 500;
    margin-bottom: 4px;
    animation: slideInUp 0.5s ease-out 0.05s both;
    font-family: 'Comfortaa', sans-serif;
}

.np-track-name {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--md-on-surface);
    margin-bottom: 8px;
    word-wrap: break-word;
    line-height: 1.3;
    animation: slideInUp 0.5s ease-out 0.1s both;
    font-family: 'Comfortaa', sans-serif;
}

.np-artist {
    font-size: 0.875rem;
    color: var(--md-on-surface-variant);
    animation: slideInUp 0.5s ease-out 0.2s both;
    font-family: 'Exo 2', sans-serif;
}

@keyframes slideInUp {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}

.np-loading {
    color: var(--md-on-surface-variant);
    font-size: 0.875rem;
    letter-spacing: 0.25px;
    animation: pulse 1.5s ease-in-out infinite;
    width: 100%;
    text-align: center;
    font-family: 'Exo 2', sans-serif;
}

@keyframes pulse {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

/* ===== Animations ===== */
@keyframes md3-fade-in {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

.projects {
    opacity: 0;
    animation: md3-fade-in 0.5s ease-out 0.4s forwards;
}

/* ===== Footer ===== */
#footer-message {
    text-align: center;
    padding: 40px 20px;
    margin: 40px auto 0;
    max-width: 1200px;
}

#footer-message p {
    color: var(--md-on-surface-variant);
    font-size: 0.875rem;
    font-style: italic;
    line-height: 1.6;
    margin: 0;
    white-space: pre-line;
    letter-spacing: 0.25px;
    font-family: 'Exo 2', sans-serif;
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
    .avatar {
        width: 220px;
        height: 220px;
    }
    h1 {
        font-size: 2.5rem;
    }
    .button-group {
        max-width: 650px;
    }
}

@media (max-width: 768px) {
    header {
        padding: 30px 15px 15px;
    }
    h1 {
        font-size: 2rem;
    }
    .avatar {
        width: 180px;
        height: 180px;
        margin-bottom: 20px;
    }
    .projects-grid {
        grid-template-columns: 1fr;
    }
    .button-group {
        max-width: 90%;
        gap: 10px;
        padding: 12px;
    }
    .md3-btn {
        padding: 0 20px;
        height: 36px;
        font-size: 0.8125rem;
    }
    .now-playing {
        padding: 15px;
        max-width: 90%;
    }
    .np-album-art {
        width: 120px;
        height: 120px;
    }
    .np-track-name {
        font-size: 1.1rem;
    }
    .language-switcher {
        top: 12px;
        right: 12px;
    }
    .md3-icon-btn {
        padding: 6px 12px;
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    header {
        padding: 20px 15px 10px;
    }
    h1 {
        font-size: 1.75rem;
    }
    .avatar {
        width: 140px;
        height: 140px;
        margin-bottom: 15px;
    }
    .button-group {
        gap: 8px;
        padding: 10px;
        border-radius: var(--md-shape-lg);
    }
    .md3-btn {
        padding: 0 14px;
        height: 34px;
        font-size: 0.75rem;
        flex-basis: calc(50% - 4px);
        justify-content: center;
    }
    .md3-btn img {
        width: 16px;
        height: 16px;
    }
    .projects {
        padding: 15px;
    }
    .projects h2 {
        font-size: 1.2rem;
    }
    .md3-card {
        padding: 16px;
    }
    .np-album-art {
        width: 90px;
        height: 90px;
    }
    .np-track-name {
        font-size: 1rem;
    }
    .np-artist {
        font-size: 0.8rem;
    }
    #footer-message p {
        font-size: 0.8rem;
    }
    .language-switcher {
        top: 10px;
        right: 10px;
    }
    .md3-icon-btn {
        padding: 4px 10px;
        font-size: 0.75rem;
    }
}