/* ============ Google Fonts ============ */
@import url('https://fonts.googleapis.com/css2?family=DotGothic16&family=M+PLUS+Rounded+1c:wght@400;700&family=Press+Start+2P&display=swap');

/* ============ ルート変数（ACVパレット） ============ */
:root {
    --bg: #0e0a1e;
    --surface: #1a1333;
    --card: #221a40;
    --card-hover: #2e2255;
    --accent: #a855f7;
    --accent2: #c084fc;
    --gold: #f5c842;
    --green: #4ade80;
    --red: #f87171;
    --text: #ede9f5;
    --text-dim: #9b8dbb;
    --border: rgba(168, 85, 247, 0.3);
    --border-strong: rgba(168, 85, 247, 0.6);
    --pixel-font: 'DotGothic16', 'MS Gothic', monospace;
    --pixel-en: 'Press Start 2P', monospace;
    --body-font: 'M PLUS Rounded 1c', 'Hiragino Sans', 'Meiryo', sans-serif;
    --radius: 5px;
    font-size: 16px;
}

/* ============ リセット ============ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: var(--body-font);
    font-size: 1rem;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--accent2); text-decoration: none; }
a:hover { color: var(--gold); }

/* ============ レイアウト ============ */
.container {
    max-width: 480px;
    margin: 0 auto;
    padding: 0 16px 60px;
}

/* ============ ナビバー ============ */
.retro-nav {
    display: flex;
    gap: 8px;
    margin-bottom: 10px;
}
.retro-nav-item {
    flex: 1;
    text-align: center;
    padding: 16px 12px;
    font-family: var(--pixel-font);
    font-size: 1.05rem;
    letter-spacing: 2px;
    color: var(--text-dim);
    cursor: pointer;
    background: var(--surface);
    text-decoration: none;
    display: block;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    transition: all 0.2s;
}
.retro-nav-item:hover {
    background: var(--card);
    color: var(--text);
    border-color: var(--accent);
    transform: translateY(-1px);
}
.retro-nav-item.active {
    background: linear-gradient(135deg, var(--accent), #7c3aed);
    color: #fff;
    font-weight: bold;
    border-color: var(--accent);
    box-shadow: 0 4px 16px rgba(168,85,247,0.35);
}

/* ============ ユーザーバー ============ */
.user-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 12px;
    margin-bottom: 6px;
    font-size: 0.85rem;
    color: var(--text-dim);
}
.user-bar a { font-size: 0.8rem; opacity: 0.6; }
.user-bar a:hover { opacity: 1; }

/* ============ ヒーロー ============ */
.hero {
    text-align: center;
    padding: 20px 12px 18px;
    background: linear-gradient(180deg, var(--surface) 0%, var(--bg) 100%);
    border: 3px solid var(--border-strong);
    border-radius: var(--radius);
    margin-bottom: 24px;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: -50%; left: -50%;
    width: 200%; height: 200%;
    background: radial-gradient(ellipse at center, rgba(168,85,247,0.1) 0%, transparent 60%);
    pointer-events: none;
}

/* デコレーション行 */
.hero-deco {
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 0 8px;
    margin-bottom: 6px;
    line-height: 1;
    position: relative;
    z-index: 1;
}
.hero-deco-bottom { margin-bottom: 0; margin-top: 14px; }
.deco-star {
    font-size: 0.7rem;
    color: var(--gold);
    text-shadow: 0 0 6px var(--gold);
}
.deco-char {
    font-size: 1.2rem;
}

/* ロゴ */
.hero-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 12px 0 8px;
    gap: 4px;
    position: relative;
    z-index: 1;
}
.hero-logo-line1 {
    font-family: var(--pixel-en);
    font-size: 1.4rem;
    color: var(--accent2);
    text-shadow: 0 0 15px rgba(192,132,252,0.5);
    letter-spacing: 4px;
    line-height: 1.3;
}
.hero-logo-line2 {
    font-family: var(--pixel-en);
    font-size: 1.4rem;
    color: var(--accent2);
    text-shadow: 0 0 15px rgba(192,132,252,0.5);
    letter-spacing: 6px;
    line-height: 1.3;
}
.hero-logo-line3 {
    font-family: var(--pixel-en);
    font-size: 2rem;
    color: var(--gold);
    text-shadow: 0 0 25px rgba(245,200,66,0.5), 0 0 50px rgba(245,200,66,0.2);
    letter-spacing: 6px;
    line-height: 1.3;
    margin-top: 6px;
}

.hero-sub {
    font-family: var(--pixel-font);
    font-size: 0.75rem;
    color: var(--text-dim);
    letter-spacing: 1px;
    margin: 10px 0 18px;
    position: relative;
    z-index: 1;
}
.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: linear-gradient(135deg, var(--accent), #7c3aed);
    color: #fff;
    font-family: var(--body-font);
    font-size: 1rem;
    border-radius: 50px;
    font-weight: 700;
    text-decoration: none;
    transition: transform 0.15s, box-shadow 0.15s;
    box-shadow: 0 4px 20px rgba(168,85,247,0.4);
    position: relative;
    z-index: 1;
}
.hero-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(168,85,247,0.6);
    color: #fff;
}
.hero-cta-icon { font-size: 1.1rem; }

/* キラキラアニメーション */
.hero-sparkles {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}
.sparkle {
    position: absolute;
    animation: float 3s ease-in-out infinite;
    opacity: 0.6;
}
.sparkle.s1 { top: 12%; left: 8%; font-size: 1rem; animation-delay: 0s; }
.sparkle.s2 { top: 20%; right: 10%; font-size: 0.8rem; animation-delay: 0.8s; }
.sparkle.s3 { bottom: 15%; left: 15%; font-size: 1.1rem; animation-delay: 1.5s; }
.sparkle.s4 { bottom: 20%; right: 12%; font-size: 0.7rem; animation-delay: 2.2s; }
@keyframes float {
    0%, 100% { transform: translateY(0) scale(1); opacity: 0.5; }
    50% { transform: translateY(-8px) scale(1.2); opacity: 1; }
}

/* ============ セクション ============ */
.section {
    margin-bottom: 28px;
}
.section-heading {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--pixel-font);
    font-size: 1rem;
    color: var(--gold);
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--border);
}
.section-icon { font-size: 1.2rem; }
.section-desc {
    font-size: 0.9rem;
    color: var(--text-dim);
    margin: -6px 0 14px;
}

/* ============ バッジ ============ */
.badge {
    display: inline-block;
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: 12px;
    font-weight: 700;
    letter-spacing: 0.5px;
}
.badge--new {
    background: linear-gradient(135deg, var(--red), #ef4444);
    color: #fff;
}
.badge--interviewed {
    background: rgba(74,222,128,0.15);
    color: var(--green);
    border: 1px solid rgba(74,222,128,0.3);
}

/* ============ フィーチャード記事 ============ */
.featured-card {
    display: block;
    background: var(--card);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    text-decoration: none;
    transition: border-color 0.2s, transform 0.15s;
}
.featured-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}
.featured-img {
    min-height: 180px;
    background-size: cover;
    background-position: center;
}
.featured-img--placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface);
    font-size: 3rem;
}
.featured-body {
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.featured-title {
    font-family: var(--body-font);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text);
    line-height: 1.6;
}
.featured-date {
    font-size: 0.85rem;
    color: var(--text-dim);
}

/* ============ 記事グリッド ============ */
.article-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}
.article-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    text-decoration: none;
    transition: border-color 0.2s, transform 0.15s;
}
.article-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}
.article-thumb {
    height: 110px;
    background-size: cover;
    background-position: center;
}
.article-thumb--placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface);
    font-size: 2rem;
}
.article-info {
    padding: 10px 12px;
}
.article-title {
    font-family: var(--body-font);
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.article-date {
    font-size: 0.8rem;
    color: var(--text-dim);
    margin-top: 6px;
}

/* ============ スタートアップグリッド ============ */
.startup-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}
.startup-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 10px;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 6px;
    transition: border-color 0.2s, transform 0.15s, box-shadow 0.2s;
    cursor: pointer;
}
.startup-card:hover {
    border-color: var(--accent);
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(168,85,247,0.25);
}
.startup-icon {
    font-size: 2.4rem;
    line-height: 1;
    margin-bottom: 2px;
}
.startup-name {
    font-family: var(--body-font);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text);
    line-height: 1.3;
}
.startup-sector {
    display: inline-block;
    font-size: 0.75rem;
    padding: 2px 8px;
    background: rgba(168,85,247,0.1);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--accent2);
}
.startup-action {
    font-size: 0.8rem;
    color: var(--accent);
    margin-top: 4px;
    opacity: 0.7;
}

/* ============ クイックアクション ============ */
.quick-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}
.quick-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px 12px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-decoration: none;
    transition: border-color 0.2s, transform 0.15s, background 0.2s;
}
.quick-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    background: var(--card-hover);
}
.quick-icon {
    font-size: 2rem;
}
.quick-label {
    font-family: var(--body-font);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text);
    text-align: center;
}

/* ============ ボタン ============ */
.btn {
    font-family: var(--body-font);
    font-size: 0.85rem;
    padding: 8px 16px;
    border: 2px solid var(--accent);
    background: var(--surface);
    color: var(--text);
    cursor: pointer;
    border-radius: var(--radius);
    transition: all 0.15s;
}
.btn:hover {
    background: var(--accent);
    color: #fff;
}
.btn-primary {
    background: linear-gradient(135deg, var(--accent), #7c3aed);
    color: #fff;
    border-color: transparent;
}
.btn-primary:hover {
    background: linear-gradient(135deg, var(--gold), #eab308);
    color: #000;
}
.btn-small {
    font-size: 0.7rem;
    padding: 5px 10px;
}

/* ============ チャット ============ */
.chat-container {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 130px);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg);
    overflow: hidden;
}
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 14px 16px;
}
.chat-message {
    margin-bottom: 12px;
    padding: 12px 14px;
    border-radius: var(--radius);
    font-family: var(--body-font);
    font-size: 1rem;
    line-height: 1.8;
    word-break: break-word;
    overflow-wrap: anywhere;
}
.chat-message.user {
    background: rgba(168,85,247,0.1);
    border: 1px solid var(--border);
    border-left: 4px solid var(--accent);
}
.chat-message.assistant {
    background: var(--surface);
    border: 1px solid var(--border);
    border-left: 4px solid var(--gold);
}
.chat-message .role {
    font-family: var(--pixel-font);
    font-size: 0.75rem;
    color: var(--text-dim);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.chat-input-area {
    display: flex;
    gap: 8px;
    padding: 12px 14px;
    border-top: 2px solid var(--border);
    background: var(--surface);
}
.chat-input {
    flex: 1;
    font-family: var(--body-font);
    font-size: 1rem;
    padding: 10px 14px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg);
    color: var(--text);
    outline: none;
    transition: border-color 0.2s;
}
.chat-input:focus { border-color: var(--accent); }

/* ============ サジェストボタン ============ */
.suggest-area {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
    background: var(--surface);
}
.suggest-btn {
    font-family: var(--body-font);
    font-size: 0.85rem;
    padding: 4px 12px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: transparent;
    color: var(--accent2);
    cursor: pointer;
    transition: all 0.15s;
}
.suggest-btn:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

/* ============ ローディング ============ */
.loading {
    display: inline-block;
    color: var(--accent2);
    font-family: var(--pixel-font);
    font-size: 0.8rem;
}
.loading::after {
    content: '';
    animation: dots 1.5s steps(3, end) infinite;
}
@keyframes dots {
    0%   { content: '.'; }
    33%  { content: '..'; }
    66%  { content: '...'; }
}

/* ============ ログインフォーム ============ */
.login-container {
    max-width: 360px;
    margin: 100px auto;
    padding: 32px 28px;
    border: 2px solid var(--border-strong);
    border-radius: var(--radius);
    background: var(--surface);
    text-align: center;
}
.login-container h2 {
    font-family: var(--pixel-en);
    font-size: 0.95rem;
    color: var(--gold);
    margin-bottom: 20px;
}
.login-input {
    width: 100%;
    font-family: var(--body-font);
    font-size: 1rem;
    padding: 10px 14px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg);
    color: var(--text);
    outline: none;
    margin-bottom: 14px;
}
.login-input:focus { border-color: var(--accent); }
.login-error {
    color: var(--red);
    font-size: 0.9rem;
    margin-bottom: 10px;
}

/* ============ レスポンシブ（タブレット以上） ============ */
@media (min-width: 768px) {
    .container { max-width: 720px; }
    .article-grid { grid-template-columns: repeat(3, 1fr); }
    .startup-grid { grid-template-columns: repeat(4, 1fr); }
    .quick-grid { grid-template-columns: repeat(4, 1fr); }
    .featured-card {
        display: grid;
        grid-template-columns: 1fr 1fr;
    }
    .featured-img { min-height: 220px; }
}

/* ============ レスポンシブ（PC） ============ */
@media (min-width: 1024px) {
    .container { max-width: 960px; }
    .article-grid { grid-template-columns: repeat(4, 1fr); }
    .startup-grid { grid-template-columns: repeat(5, 1fr); }
}