/* Variables */
:root {
    --main-purple: #582A72;
    --accent-neon: #8A2BE2;
    --black: #000;
    --white: #fff;
    --font-jp: 'Noto Serif JP', serif;
    --font-en: 'Orbitron', sans-serif;
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: var(--font-jp);
    color: var(--white);
    background: var(--black);
    line-height: 1.8;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: auto;
}

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(6px);
    z-index: 1000;
}
.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 0;
}
.logo {
    font-family: var(--font-jp);
    font-size: 1.4rem;
    color: var(--main-purple);
}
.logo .en {
    font-family: var(--font-en);
}
.nav-links {
    list-style: none;
    display: flex;
    gap: 2rem;
}
.nav-links a {
    color: var(--white);
    text-decoration: none;
    font-family: var(--font-en);
    position: relative;
}
.nav-links a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -4px;
    width: 0%;
    height: 2px;
    background: var(--accent-neon);
    transition: width 0.3s ease;
}
.nav-links a:hover::after {
    width: 100%;
}

/* Hero */
.hero-section {
    position: relative;
    height: 100vh;
    background: url('../images/bg_hero.jpg') center/cover no-repeat fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}
.hero-section .overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.6);
}
.hero-content {
    position: relative;
    z-index: 1;
}
.catchphrase {
    font-size: clamp(1.5rem, 3vw + 1rem, 2.5rem);
    margin-bottom: 2rem;
    line-height: 1.6;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 1.6rem;
    border-radius: 25px;
    font-family: var(--font-en);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    text-decoration: none;
}
.btn.ghost {
    border: 1px solid var(--accent-neon);
    color: var(--accent-neon);
    margin: 0 0.5rem;
}
.btn.ghost:hover {
    background: var(--accent-neon);
    color: var(--white);
}
.btn.accent {
    background: var(--accent-neon);
    border: none;
    color: var(--white);
}
.btn.accent:hover {
    filter: brightness(1.1);
}

/* Sections */
.section {
    padding: 100px 0;
}
.section-title {
    font-family: var(--font-en);
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--accent-neon);
    text-align: center;
}

/* ABOUT */
.about-content {
    background: rgba(0,0,0,0.5);
    padding: 2rem;
    border-left: 5px solid var(--main-purple);
}
.about-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--accent-neon);
}

/* MUSIC */
.music-flex {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    align-items: center;
}
.music-cover img {
    max-width: 280px;
    border: 3px solid var(--main-purple);
}
.music-info {
    flex: 1;
}
.streaming-links {
    margin-top: 1rem;
    display: flex;
    gap: 1rem;
}
.streaming-links.hidden {
    display: none;
}
.streaming-links img {
    width: 32px;
    filter: brightness(0) invert(1);
    transition: transform 0.3s ease;
}
.streaming-links a:hover img {
    transform: scale(1.1);
}

/* LYRICS */
.lyrics-section {
    background: url('../images/washi_texture.png') center/cover repeat;
    color: var(--black);
}
.song-title {
    text-align: center;
    color: var(--main-purple);
    margin-bottom: 1.5rem;
    font-family: var(--font-en);
}
.lyrics-text {
    white-space: pre-wrap;
    background: rgba(255,255,255,0.75);
    padding: 2rem;
    border-radius: 10px;
    max-height: 70vh;
    overflow-y: auto;
}

/* LINKS */
.social-icons {
    display: flex;
    justify-content: center;
    gap: 2rem;
}
.social-icons img {
    width: 40px;
    transition: transform 0.3s ease, filter 0.3s ease;
    filter: brightness(0) invert(1);
}
.social-icons a:hover img {
    transform: translateY(-5px);
    filter: drop-shadow(0 0 6px var(--accent-neon));
}

/* Footer */
.footer {
    background: #111;
    text-align: center;
    padding: 1rem 0;
    font-family: var(--font-en);
    color: var(--white);
}

/* Responsive */
@media (max-width: 992px) {
    .nav-links {
        gap: 1rem;
    }
    .music-flex {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .catchphrase {
        font-size: 1.2rem;
    }
    header {
        padding: 0 1rem;
    }
    .nav-links {
        display: none; /* Hide nav links for simplicity on mobile, could be toggled via hamburger */
    }
}