@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;700&family=Oswald:wght@500&display=swap');

:root {
    --bg-color: #08090c;
    --text-main: #e0e6ed;
    --accent-blue: #4a8096; /* Sampled from the image's blue accents */
    --card-bg: #111217;
    --border-color: #1f222e;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: 'Noto Sans JP', sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    min-height: 100vh;
}

/* Language Button */
.lang-switch-container {
    position: absolute;
    top: 20px;
    right: 20px;
}

#lang-btn {
    background: transparent;
    border: 1px solid var(--accent-blue);
    color: var(--accent-blue);
    padding: 6px 16px;
    cursor: pointer;
    font-family: 'Oswald', sans-serif;
    letter-spacing: 2px;
    border-radius: 2px;
    transition: all 0.3s ease;
}

#lang-btn:hover {
    background: var(--accent-blue);
    color: var(--bg-color);
}

/* Main Layout */
.container {
    width: 90%;
    max-width: 450px;
    padding: 80px 0 60px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Profile */
.profile-section {
    text-align: center;
    margin-bottom: 40px;
}

.profile-img {
    width: 130px;
    height: 130px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--accent-blue);
    box-shadow: 0 0 25px rgba(74, 128, 150, 0.15);
    margin-bottom: 20px;
}

.title {
    font-size: 2rem;
    margin: 0;
    font-weight: 700;
    letter-spacing: 6px;
}

.subtitle {
    color: var(--accent-blue);
    letter-spacing: 3px;
    margin-top: 5px;
    font-family: 'Oswald', sans-serif;
    text-transform: uppercase;
    font-size: 0.85rem;
}

.about-section {
    margin-top: 20px;
    margin-bottom: 30px;
    padding: 0 15px;
    border-left: 1px solid var(--accent-blue);
    border-right: 1px solid var(--accent-blue);
}

.about-text {
    font-size: 0.85rem;
    line-height: 1.8;
    color: #e0e6ed;
    letter-spacing: 1.5px;
    text-align: center;
}

/* Links */
.links-section {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 40px;
}

.link-btn {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 16px;
    text-align: center;
    text-decoration: none;
    border-radius: 3px;
    transition: all 0.4s ease;
    letter-spacing: 2px;
    font-size: 0.9rem;
}

.link-btn:hover {
    border-color: var(--accent-blue);
    background: #151821;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.4);
}

/* Fan Letter Form */
.fan-letter-section {
    width: 100%;
    background: var(--card-bg);
    padding: 25px;
    border-radius: 3px;
    border: 1px solid var(--border-color);
    box-sizing: border-box;
}

.fan-letter-section h2 {
    margin-top: 0;
    font-size: 1.1rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
    margin-bottom: 20px;
    color: var(--accent-blue);
    letter-spacing: 2px;
}

form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

input, textarea {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 12px;
    border-radius: 3px;
    font-family: inherit;
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.submit-btn {
    background: var(--accent-blue);
    color: var(--bg-color);
    border: none;
    padding: 12px;
    cursor: pointer;
    font-weight: bold;
    border-radius: 3px;
    letter-spacing: 2px;
    transition: 0.3s;
}

.submit-btn:hover {
    background: #6098af;
}

.hidden {
    display: none;
}

#thank-you-msg {
    margin-top: 15px;
    color: var(--accent-blue);
    text-align: center;
    font-weight: bold;
    letter-spacing: 1px;
}