/* 変数設定（register-style.cssと完全統一） */
:root {
    --primary-brown: #3b2c28;
    --accent-copper: #a67c6d;
    --accent-dark: #633230;
    --bg-beige: #f6efe9;
    --text-gray: #666;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Noto Sans JP', sans-serif; color: var(--primary-brown); line-height: 1.6; }

/* レイアウト：50/50分割 */
.split-container {
    display: flex;
    height: 100vh;
    width: 100%;
    overflow: hidden;
}

/* 左側：固定サイドバー */
.sidebar {
    flex: 0 0 50%;
    height: 100%;
    background: url('../img/login-bg.png') no-repeat center center / cover;
    position: relative;
    color: #fff;
    padding: 60px;
}

.sidebar::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.3);
}

.sidebar-content { 
    position: relative; z-index: 2; height: 100%; 
    display: flex; flex-direction: column; padding-top: 35vh; 
}

.sidebar-nav ul { list-style: none; margin-bottom: 40px; font-weight: 500; }
.sidebar-nav a { color: #fff; text-decoration: none; font-size: 14px; display: block; margin-bottom: 15px; opacity: 0.8; transition: 0.3s; }
.sidebar-nav a:hover { opacity: 1; }

.sidebar-campaign {
    border: 1px solid #fff;
    padding: 20px;
    background: rgba(176, 120, 96, 0.25);
    backdrop-filter: blur(5px);
    margin-bottom: 30px;
    border-radius: 8px;
    align-self: flex-start;
}

.campaign-tag { font-size: 12px; margin-bottom: 5px; }
.campaign-main { font-size: 16px; font-weight: 600; font-family: 'Noto Serif JP', serif; }
.campaign-main .highlight { 
    color: #fff; font-size: 22px; 
    background: linear-gradient(90deg, var(--accent-copper) 0%, var(--accent-dark) 100%); 
    padding: 2px 5px; border-radius: 4px; 
}

.sidebar-footer-text { margin-top: auto; color: rgba(255,255,255,0.7); font-size: 14px; }
.logo-text { font-family: 'Noto Serif JP', serif; font-size: 24px; color: #fff; margin-bottom: 10px; font-style: italic; letter-spacing: 0.1em; }

.footer-logo img {
    height: 50px; width: auto; display: block; margin-bottom: 20px;
  }

/* 右側：スクロールフォーム */
.form-area {
    flex: 0 0 50%;
    height: 100%;
    overflow-y: auto;
    background-color: #fff;
    padding: 100px 0;
}

.form-container {  max-width: 80%; margin: 0 auto; padding: 0 40px; }

.form-header { margin-bottom: 48px; }
.label-eng { color: var(--accent-copper); font-size: 14px; letter-spacing: 0.1em; font-weight: 700; }
.form-header h1 { font-size: 32px; margin: 10px 0; font-family: 'Noto Serif JP', serif; letter-spacing: 0.05rem; }
.sub-lead { font-size: 14px; color: var(--text-gray); }

/* フォーム部品 */
.form-group { margin-bottom: 24px; }
.form-group label { display: block; font-weight: 700; margin-bottom: 10px; font-size: 14px; }

input[type="email"], input[type="password"] {
    width: 100%; padding: 14px 15px; border: 1px solid rgba(120, 90, 70, 0.3); 
    border-radius: 6px; font-size: 15px; outline: none; transition: 0.3s;
}
input:focus { border-color: var(--accent-copper); box-shadow: 0 0 0 3px rgba(166, 122, 109, 0.1); }

.error-msg { color: #e65f5f; font-size: 12px; margin-top: 5px; display: none; }

/* 保持＋忘れ */
.form-meta-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 32px; }
.checkbox-label { font-size: 13px; cursor: pointer; color: var(--text-gray); }
.forgot-link { font-size: 13px; color: var(--accent-copper); text-decoration: none; }

/* ボタン：registerと共通のグラデーション */
.submit-btn {
    width: 50%; 
    background: linear-gradient(90deg, var(--accent-copper) 0%, var(--accent-dark) 100%);
    color: #fff; border: none; padding: 20px; border-radius: 50px; 
    font-size: 18px; font-weight: 700; cursor: pointer; transition: 0.3s;
    box-shadow: 0 10px 20px rgba(99, 50, 48, 0.2);
    display: block;
    margin: 0 auto;
}
.submit-btn:hover { transform: translateY(-2px); opacity: 0.95; box-shadow: 0 15px 25px rgba(99, 50, 48, 0.3); }

.ssl-note { text-align: center; font-size: 11px; color: #999; margin-top: 20px; }

/* 下部：登録案内 */
.register-guide { margin-top: 60px; text-align: center; }
.guide-line { height: 1px; background: #eee; margin-bottom: 40px; }
.register-guide p { font-size: 14px; color: var(--text-gray); margin-bottom: 20px; line-height: 1.8; }

.register-btn {
    display: inline-block; padding: 20px; border: 1px solid var(--accent-copper);
    color: var(--accent-copper); border-radius: 50px; font-weight: 700; text-decoration: none;
    transition: 0.3s; margin-bottom: 25px;
    font: 18px;
    width: 50%; 
}
.register-btn:hover { background: var(--bg-beige); }

.trial-info-box {
    background: #a67c6d60; padding: 20px; border-radius: 8px;
    width: 50%; margin: 0 auto;
}
.trial-info-box strong { display: block; font-size: 16px; color: var(--accent-dark); margin-bottom: 5px; }
.trial-info-box p { font-size: 12px; margin: 0; color: var(--primary-brown); }

/* スマホ対応 */
@media (max-width: 1024px) {
    .split-container { flex-direction: column; height: auto; overflow: visible; }
    .sidebar { flex: 0 0 auto; height: auto; padding: 40px 20px; }
    .sidebar-content { padding-top: 40px; }
    .form-area { height: auto; overflow: visible; padding: 60px 0; }
    .form-container { padding: 0 20px; }
}