@charset "UTF-8";

/* ==========================================================================
   Variables - NEON THEME
   ========================================================================== */
:root {
    --bg-color: #0f0f0f;
    --text-color: #e0e0e0;
    --primary-color: #ff00ff;
    /* Neon Pink */
    --secondary-color: #00ffff;
    /* Neon Cyan */
    --accent-color: #ffff00;
    /* Neon Yellow */
    --card-bg: #1a1a1a;
    --header-height: 70px;

    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Noto Sans JP', sans-serif;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

img {
    max-width: 100%;
    height: auto;
    vertical-align: bottom;
}

ul {
    list-style: none;
}

/* ==========================================================================
   Typography & Utilities
   ========================================================================== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    text-shadow: 0 0 10px rgba(255, 0, 255, 0.5);
    position: relative;
    display: inline-block;
}

.section-title-wrapper {
    text-align: center;
    margin-bottom: 4rem;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-weight: bold;
    border-radius: 50px;
    position: relative;
    overflow: hidden;
    z-index: 1;
    border: 2px solid transparent;
}

.btn-neon {
    background: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
    box-shadow: 0 0 5px var(--primary-color), inset 0 0 5px var(--primary-color);
}

.btn-neon:hover {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 0 20px var(--primary-color), inset 0 0 10px var(--primary-color);
}

.btn-cyan {
    background: transparent;
    color: var(--secondary-color);
    border-color: var(--secondary-color);
    box-shadow: 0 0 5px var(--secondary-color), inset 0 0 5px var(--secondary-color);
}

.btn-cyan:hover {
    background: var(--secondary-color);
    color: #000;
    box-shadow: 0 0 20px var(--secondary-color), inset 0 0 10px var(--secondary-color);
}

.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================================================
   Header
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: rgba(15, 15, 15, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 40px;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: white;
    text-shadow: 2px 2px 0 var(--primary-color), -2px -2px 0 var(--secondary-color);
}

.nav-pc ul {
    display: flex;
    gap: 30px;
}

.nav-pc a {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-color);
    position: relative;
}

.nav-pc a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: width 0.3s;
}

.nav-pc a:hover,
.nav-pc a.active {
    color: white;
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.5);
}

.nav-pc a:hover::after {
    width: 100%;
}

.hamburger {
    display: none;
    cursor: pointer;
    z-index: 2000;
}

.hamburger span {
    display: block;
    width: 30px;
    height: 3px;
    background: white;
    margin: 6px 0;
    transition: 0.3s;
    box-shadow: 0 0 5px rgba(255, 255, 255, 0.5);
}

/* ==========================================================================
   Mobile Nav
   ========================================================================== */
.nav-sp {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.95);
    z-index: 1500;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: right 0.4s cubic-bezier(0.77, 0, 0.175, 1);
}

.nav-sp.active {
    right: 0;
}

.nav-sp ul {
    text-align: center;
}

.nav-sp li {
    margin: 2rem 0;
    opacity: 0;
    transform: translateY(20px);
    transition: 0.5s;
}

.nav-sp.active li {
    opacity: 1;
    transform: translateY(0);
}

.nav-sp.active li:nth-child(1) {
    transition-delay: 0.1s;
}

.nav-sp.active li:nth-child(2) {
    transition-delay: 0.2s;
}

.nav-sp.active li:nth-child(3) {
    transition-delay: 0.3s;
}

.nav-sp.active li:nth-child(4) {
    transition-delay: 0.4s;
}

.nav-sp.active li:nth-child(5) {
    transition-delay: 0.5s;
}

.nav-sp a {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: white;
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
    height: 100vh;
    background: url('../img/hero.jpg') no-repeat center center/cover;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(15, 15, 15, 0.3) 0%, rgba(15, 15, 15, 0.9) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 0 20px;
}

.hero-title {
    font-size: 5rem;
    line-height: 1;
    margin-bottom: 1rem;
    background: linear-gradient(90deg, #fff, var(--secondary-color), var(--primary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 20px rgba(0, 255, 255, 0.5));
}

.hero-subtitle {
    font-size: 1.5rem;
    letter-spacing: 0.2em;
    margin-bottom: 3rem;
    text-shadow: 0 0 10px black;
}

/* ==========================================================================
   Cards & Grid (SNS, Goods)
   ========================================================================== */
.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    padding: 20px 0;
}

.card {
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 255, 255, 0.1);
    border-color: var(--secondary-color);
}

.card-img {
    width: 100%;
    height: 300px;
    object-fit: cover;
}

.card-body {
    padding: 1.5rem;
}

.card-title {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: white;
}

.card-meta {
    font-size: 0.8rem;
    color: #888;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 5px;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    background: black;
    padding: 60px 0 20px;
    border-top: 1px solid #333;
    text-align: center;
}

.footer-nav {
    margin-bottom: 2rem;
}

.footer-nav a {
    margin: 0 15px;
    color: #888;
    font-weight: 500;
}

.footer-nav a:hover {
    color: var(--primary-color);
}

.copyright {
    color: #555;
    font-size: 0.8rem;
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 768px) {
    .nav-pc {
        display: none;
    }

    .hamburger {
        display: block;
    }

    .hero-title {
        font-size: 3rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .header {
        padding: 0 20px;
    }
}

/* Hamburger Animation */
.hamburger.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
    background: var(--primary-color);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
    background: var(--primary-color);
}
/* ==========================================================================
   Opening Animation
   ========================================================================== */
#opening-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000;
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 1s ease, visibility 1s ease;
}

#opening-overlay.hidden {
    opacity: 0;
    visibility: hidden;
}

.neon-logo {
    font-family: var(--font-heading);
    font-size: 4rem;
    font-weight: 800;
    color: #fff;
    text-transform: uppercase;
    animation: neon-flicker 2.5s infinite alternate;
}

@keyframes neon-flicker {
    0%, 19%, 21%, 23%, 25%, 54%, 56%, 100% {
        text-shadow:
            0 0 4px #fff,
            0 0 11px #fff,
            0 0 19px #fff,
            0 0 40px var(--primary-color),
            0 0 80px var(--primary-color),
            0 0 90px var(--primary-color),
            0 0 100px var(--primary-color),
            0 0 150px var(--primary-color);
    }
    20%, 24%, 55% {
        text-shadow: none;
    }
}