:root {
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --success-color: #10b981;
    --success-hover: #059669;
    --danger-color: #ef4444;
    --danger-hover: #dc2626;
    --text-main: #1f2937;
    --text-muted: #6b7280;
    --bg-color: #f3f4f6;
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.4);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    max-width: 100vw;
    overflow-x: hidden;
}

body {
    font-family: 'Inter', 'Noto Sans JP', sans-serif;
    background: linear-gradient(135deg, #e0e7ff 0%, #f3e8ff 100%);
    color: var(--text-main);
    min-height: 100vh;
    padding: 20px;
    overflow-x: hidden;
}

.app-container {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 24px;
    width: 100%;
}

.app-container > * {
    width: 100%;
    min-width: 0;
}

/* Glassmorphism utility */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    box-shadow: var(--glass-shadow);
    padding: 24px;
}

/* Header */
.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    width: 100%;
}

.header-content h1 {
    font-size: 1.5rem;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0;
}

.user-info {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* Inputs */
.input-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.input-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
}

input[type="text"],
input[type="number"],
input[type="month"],
input[type="date"] {
    padding: 10px 14px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 0.95rem;
    font-family: inherit;
    background: rgba(255, 255, 255, 0.9);
    transition: all 0.2s ease;
    width: 100%;
    max-width: 100%;
}

input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
}

/* Summary Cards */
.summary-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 16px;
}

.summary-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    color: white;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.summary-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px 0 rgba(31, 38, 135, 0.25);
}

.gradient-blue { background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%); }
.gradient-purple { background: linear-gradient(135deg, #8b5cf6 0%, #6d28d9 100%); }
.gradient-green { background: linear-gradient(135deg, #10b981 0%, #059669 100%); }
.gradient-red { background: linear-gradient(135deg, #ef4444 0%, #b91c1c 100%); }

.card-icon {
    font-size: 2.5rem;
    opacity: 0.9;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-3d {
    width: 52px;
    height: 52px;
    object-fit: contain;
    filter: drop-shadow(0px 8px 10px rgba(0,0,0,0.25));
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.summary-card:hover .icon-3d {
    transform: scale(1.15) translateY(-4px);
}

.card-info h3 {
    font-size: 0.9rem;
    font-weight: 500;
    opacity: 0.9;
    margin-bottom: 4px;
}

.card-info .value {
    font-size: 1.8rem;
    font-weight: 700;
}

.card-info .unit {
    font-size: 1rem;
    font-weight: 400;
    opacity: 0.8;
}

.summary-input {
    background: rgba(0, 0, 0, 0.2) !important;
    border: 1px solid rgba(255, 255, 255, 0.4) !important;
    border-radius: 8px !important;
    color: #ffffff !important;
    font-size: 1.5rem !important;
    font-weight: 700 !important;
    width: 140px !important;
    padding: 4px 8px !important;
    text-align: right;
    outline: none;
    margin-right: 4px;
}
.summary-input:focus {
    background: rgba(0, 0, 0, 0.4) !important;
    border-color: #ffffff !important;
    box-shadow: none !important;
}

/* スピナー（上下の矢印ボタン）をすべて非表示にする設定 */
input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
input[type="number"] {
    -moz-appearance: textfield;
}

/* Settings */
.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-top: 16px;
}

.section-title {
    font-size: 1.2rem;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 2px solid #e5e7eb;
    padding-bottom: 8px;
}

/* Logs Table */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 12px;
}

.section-header .section-title {
    margin-bottom: 0;
    border-bottom: none;
    padding-bottom: 0;
}

.table-responsive {
    max-height: 250px; /* 約3〜4行分の高さに調整 */
    overflow-y: auto;
    overflow-x: auto;
    border-radius: 8px;
    border: 1px solid #e5e7eb;
}

table {
    width: 100%;
    border-collapse: collapse; /* sticky動作を安定させるためcollapseに変更 */
    border-spacing: 0;
}

th, td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #e5e7eb;
}

th {
    background-color: rgba(243, 244, 246, 0.95); /* 少し不透明度を上げる */
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.85rem;
    text-transform: uppercase;
    position: sticky;
    top: 0;
    z-index: 10;
}

/* 曜日ごとの行カラー */
.row-holiday, .row-sunday {
    background-color: #ffe4e6; /* 薄いピンク系 */
}

.row-saturday {
    background-color: #e0f2fe; /* 薄い青系 */
}

.row-weekday {
    background-color: #ffffff; /* 白 */
}

/* 選択された行や本日の行を目立たせる（オプション） */
.row-today {
    box-shadow: inset 0 0 0 2px var(--primary-color);
}

th:first-child { border-top-left-radius: 8px; }
th:last-child { border-top-right-radius: 8px; }

td input {
    width: 100%;
    border: 1px solid transparent;
    background: transparent;
}

td input:hover, td input:focus {
    background: white;
    border: 1px solid #d1d5db;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 16px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
    font-size: 0.95rem;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover { background-color: var(--primary-hover); }

.btn-success {
    background-color: var(--success-color);
    color: white;
}

.btn-success:hover { background-color: var(--success-hover); }

.btn-danger {
    background-color: transparent;
    color: var(--danger-color);
    padding: 8px;
}

.btn-danger:hover {
    background-color: #fee2e2;
    color: var(--danger-hover);
}

.btn-large {
    width: 100%;
    padding: 16px;
    font-size: 1.1rem;
}

.actions-container {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 24px;
}

.actions-container .btn-large {
    width: auto;
    padding: 12px 24px;
    font-size: 1rem;
    flex: 0 1 auto;
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: #1f2937;
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 500;
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    z-index: 1000;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* Responsive */
@media (max-width: 768px) {
    .summary-section { grid-template-columns: 1fr; }
    
    .header-content { flex-direction: column; align-items: flex-start; }
    
    .user-info { width: 100%; flex-direction: column; }
    .user-info .input-group { width: 100%; }
    
    .settings-grid { grid-template-columns: 1fr; }
}

/* Login Screen Overlay */
.login-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #e0e7ff 0%, #f3e8ff 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.login-box {
    width: 100%;
    max-width: 400px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    text-align: center;
}

.login-box h2 {
    color: var(--primary-color);
    margin-bottom: 8px;
}

.login-box p {
    color: var(--text-muted);
    margin-bottom: 16px;
}

.login-box .input-group {
    text-align: left;
}