/* 共通スタイルシート - UI/UX刷新版 */
/* Tailwindの補完とアプリ用デザインシステム */

@import url('https://fonts.googleapis.com/css2?family=Spline+Sans:wght@400;500;600;700&family=Space+Grotesk:wght@500;600;700&display=swap');

:root {
    /* フォント */
    --font-body: 'Spline Sans', 'Noto Sans JP', sans-serif;
    --font-display: 'Space Grotesk', 'Noto Sans JP', sans-serif;

    /* カラー */
    --bg: #f6f4f0;
    --bg-alt: #f1ede6;
    --surface: #ffffff;
    --surface-soft: #fcfbf9;
    --surface-strong: #fefcf8;
    --line: #e7e1d9;

    --text: #1f1f24;
    --text-strong: #121218;
    --text-muted: #6b6b76;

    --primary: #1b4de4;
    --primary-strong: #153bb0;
    --primary-soft: rgba(27, 77, 228, 0.12);

    --accent: #ff8a3d;
    --accent-strong: #e96f1f;
    --accent-soft: rgba(255, 138, 61, 0.16);

    --success: #16a34a;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #0ea5e9;

    /* 角丸 */
    --radius-sm: 10px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    /* 影 */
    --shadow-xs: 0 1px 1px rgba(15, 23, 42, 0.04);
    --shadow-sm: 0 8px 20px rgba(15, 23, 42, 0.08);
    --shadow-md: 0 16px 40px rgba(15, 23, 42, 0.12);
    --shadow-lg: 0 24px 60px rgba(15, 23, 42, 0.16);

    /* アニメーション */
    --transition-fast: 150ms;
    --transition-normal: 280ms;
    --transition-slow: 400ms;

    /* レイアウト */
    --content-width: 1200px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body,
body.font-sans {
    font-family: var(--font-body);
    color: var(--text);
    background:
        radial-gradient(1200px 600px at 10% -10%, rgba(27, 77, 228, 0.15), transparent 60%),
        radial-gradient(900px 500px at 90% 0%, rgba(255, 138, 61, 0.18), transparent 55%),
        var(--bg);
    min-height: 100vh;
    line-height: 1.6;
    letter-spacing: 0.01em;
}

body.bg-gray-50 {
    background:
        radial-gradient(1200px 600px at 10% -10%, rgba(27, 77, 228, 0.15), transparent 60%),
        radial-gradient(900px 500px at 90% 0%, rgba(255, 138, 61, 0.18), transparent 55%),
        var(--bg);
}

h1, h2, h3, h4, .app-title {
    font-family: var(--font-display);
    color: var(--text-strong);
    letter-spacing: -0.02em;
}

p {
    color: var(--text);
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast) ease;
}

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

::selection {
    background: var(--primary-soft);
}

:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Tailwindユーティリティの調整 */
.bg-white { background-color: var(--surface) !important; }
.bg-gray-50 { background-color: var(--bg-alt) !important; }
.bg-gray-100 { background-color: var(--surface-soft) !important; }
.border-gray-200 { border-color: var(--line) !important; }
.text-gray-900, .text-gray-800, .text-gray-700 { color: var(--text) !important; }
.text-gray-600, .text-gray-500, .text-gray-400 { color: var(--text-muted) !important; }
.shadow-sm { box-shadow: var(--shadow-xs) !important; }
.shadow-md { box-shadow: var(--shadow-sm) !important; }
.shadow-lg { box-shadow: var(--shadow-md) !important; }
.rounded-lg { border-radius: var(--radius-md) !important; }
.rounded-xl { border-radius: var(--radius-lg) !important; }
.bg-blue-600 { background-color: var(--primary) !important; }
.bg-blue-700 { background-color: var(--primary-strong) !important; }
.text-blue-600 { color: var(--primary) !important; }
.hover\:text-blue-600:hover { color: var(--primary) !important; }
.hover\:bg-blue-50:hover { background-color: var(--primary-soft) !important; }

/* アニメーション */
@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.55; }
}

@keyframes slide-in {
    from { transform: translateX(100%); }
    to { transform: translateX(0); }
}

@keyframes slide-out {
    from { transform: translateX(0); }
    to { transform: translateX(100%); }
}

@keyframes fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fade-out {
    from { opacity: 1; }
    to { opacity: 0; }
}

.loading { animation: spin 1s linear infinite; }
.pulse { animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite; }
.fade-in { animation: fade-in var(--transition-normal) ease-out; }
.fade-out { animation: fade-out var(--transition-normal) ease-out; }
.slide-in { animation: slide-in var(--transition-normal) ease-out; }
.slide-out { animation: slide-out var(--transition-normal) ease-out; }

/* ボタン */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.2rem;
    border-radius: 999px;
    font-weight: 600;
    transition: transform var(--transition-fast) ease, box-shadow var(--transition-fast) ease, background-color var(--transition-fast) ease, color var(--transition-fast) ease;
    cursor: pointer;
    border: none;
    background: var(--surface);
    color: var(--text);
    box-shadow: var(--shadow-xs);
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-strong));
    color: #fff;
    box-shadow: 0 14px 30px rgba(27, 77, 228, 0.25);
}

.btn-outline {
    border: 1px solid var(--line);
    background: var(--surface);
}

.btn-ghost {
    background: transparent;
    box-shadow: none;
    color: var(--text);
}

.btn-ghost:hover {
    background: var(--surface-soft);
}

/* カード */
.card,
.surface-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(231, 225, 217, 0.7);
    transition: box-shadow var(--transition-normal) ease, transform var(--transition-normal) ease;
}

.card:hover,
.surface-card:hover {
    box-shadow: var(--shadow-md);
}

.surface-card {
    backdrop-filter: blur(12px);
}

/* フォーム */
.input,
.select,
.textarea,
.search-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast) ease, box-shadow var(--transition-fast) ease, background-color var(--transition-fast) ease;
    background: var(--surface-strong);
    color: var(--text);
}

.input:focus,
.select:focus,
.textarea:focus,
.search-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-soft);
    outline: none;
}

.input.error,
.select.error,
.textarea.error {
    border-color: var(--error);
}

.label {
    display: block;
    margin-bottom: 0.35rem;
    font-weight: 600;
    color: var(--text-strong);
}

.error-message {
    color: var(--error);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* トースト通知 */
.toast {
    position: fixed;
    top: 1rem;
    right: 1rem;
    padding: 1rem 1.25rem;
    border-radius: 999px;
    box-shadow: var(--shadow-md);
    z-index: 9999;
    animation: slide-in var(--transition-normal) ease-out;
    font-weight: 600;
}

.toast-success { background-color: var(--success); color: #fff; }
.toast-error { background-color: var(--error); color: #fff; }
.toast-warning { background-color: var(--warning); color: #fff; }
.toast-info { background-color: var(--info); color: #fff; }

/* モーダル */
.modal-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(15, 23, 42, 0.5);
    z-index: 9998;
    animation: fade-in var(--transition-fast) ease-out;
}

.modal,
.modal-panel {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--line);
}

/* グリッド */
.grid-auto {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
}

/* スケルトン */
.skeleton {
    background: linear-gradient(90deg, #f0ebe4 25%, #e7e1d9 50%, #f0ebe4 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* レスポンシブユーティリティ */
@media (max-width: 640px) {
    .hide-mobile { display: none !important; }
}

@media (min-width: 641px) {
    .hide-desktop { display: none !important; }
}

/* 印刷対応 */
@media print {
    .no-print { display: none !important; }
    .card { box-shadow: none; border: 1px solid var(--line); }
}

/* アクセシビリティ */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* スクロールバー */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: #f1ede6; }
::-webkit-scrollbar-thumb { background: #c7c1b8; border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: #a39d94; }

/* パフォーマンス */
.gpu-accelerated { transform: translateZ(0); will-change: transform; }
.no-select { user-select: none; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* フレックスユーティリティ */
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-wrap { display: flex; flex-wrap: wrap; gap: 0.5rem; }

/* アプリ共通レイアウト */
.app-container {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.app-header {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--line);
}

.app-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--text-strong);
}

.app-logo i {
    background: var(--primary-soft);
    color: var(--primary);
    padding: 0.5rem;
    border-radius: 12px;
}

.app-nav-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.6rem;
    border-radius: 999px;
    color: var(--text-muted);
    transition: all var(--transition-fast) ease;
}

.app-nav-link:hover {
    background: var(--primary-soft);
    color: var(--primary);
}

.app-sidebar-link {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.45rem 0.75rem;
    border-radius: 12px;
    color: var(--text);
    transition: all var(--transition-fast) ease;
}

.app-sidebar-link:hover {
    background: var(--primary-soft);
    color: var(--primary);
}

.app-sidebar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(14px);
    border-right: 1px solid var(--line);
}

.app-sidebar a {
    border-radius: 12px;
}

.app-footer {
    background: var(--surface);
    border-top: 1px solid var(--line);
}

/* チップ */
.chip {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    background: var(--primary-soft);
    color: var(--primary);
    font-size: 0.85rem;
    font-weight: 600;
}

.chip-tag {
    background: var(--surface-soft);
    color: var(--text);
    border: 1px solid var(--line);
}

.chip-close {
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
}