/* Voyage CSS - Minimal & Stylish */
:root {
    /* Dark Theme (Midnight Neo) */
    --bg-dark: #0B0F14;
    --card-dark: #11161C;
    --text-dark: #E0E6ED;
    --accent-start: #7C3AED;
    --accent-end: #06B6D4;
    
    /* Light Theme (Daylight Clean) - デフォルト */
    --bg-light: #FAFBFC;
    --card-light: #FFFFFF;
    --text-light: #1A202C;
    --accent-light: #4F46E5;
    --gradient-light-start: #667EEA;
    --gradient-light-end: #764BA2;
    --brand-grad-start: #7C3AED; /* purple */
    --brand-grad-end: #06B6D4;   /* cyan */
}

[data-theme="dark"] {
    --bg: var(--bg-dark);
    --card: var(--card-dark);
    --text: var(--text-dark);
    --accent: linear-gradient(135deg, var(--accent-start), var(--accent-end));
}

[data-theme="light"] {
    --bg: var(--bg-light);
    --card: var(--card-light);
    --text: var(--text-light);
    --accent: var(--accent-light);
}

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

body {
    font-family: 'Noto Sans JP', 'IBM Plex Sans JP', sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    transition: background-color 0.3s ease, color 0.3s ease;
    -webkit-text-size-adjust: 100%;
}

@media screen and (orientation: landscape) and (max-width: 896px) {
    body {
        transform: rotate(0deg) !important;
        transform-origin: center center !important;
    }
}

body[data-theme="dark"] {
    --bg: var(--bg-dark);
    --card: var(--card-dark);
    --text: var(--text-dark);
    --border: rgba(255, 255, 255, 0.1);
}

body[data-theme="light"] {
    --bg: var(--bg-light);
    --card: var(--card-light);
    --text: var(--text-light);
    --border: rgba(0, 0, 0, 0.1);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 60px 20px;
    background: linear-gradient(135deg, var(--gradient-light-start), var(--gradient-light-end));
    background-size: 200% 200%;
    animation: gradientShift 8s ease infinite;
    border-radius: 24px;
    margin-bottom: 40px;
    color: white;
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.2);
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.hero h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.hero p {
    font-size: 18px;
    opacity: 0.95;
    margin-bottom: 32px;
}

.hero-button {
    background: white;
    color: var(--gradient-light-start);
    padding: 16px 32px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 16px;
    border: none;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.hero-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

/* Vision Cards */
.visions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 28px;
    margin-bottom: 40px;
}

.vision-card {
    background: linear-gradient(180deg, #F4F7FF, #EEF4FF);
    border-radius: 18px;
    padding: 28px;
    cursor: pointer;
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.25s ease, border-color 0.25s ease;
    border: 1px solid rgba(59, 130, 246, 0.12);
    position: relative;
    overflow: hidden;
    box-shadow: 0 8px 18px rgba(17, 24, 39, 0.04), 0 14px 34px rgba(17, 24, 39, 0.06);
}

.vision-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--gradient-light-start), var(--gradient-light-end));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.vision-card:hover::before {
    transform: scaleX(1);
}

.vision-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 28px rgba(17, 24, 39, 0.10), 0 6px 16px rgba(17, 24, 39, 0.06);
}

/* Header & Due days badge */
.vision-card-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.vision-card .days-badge { display: inline-flex; align-items: baseline; gap: 6px; padding: 6px 10px; border-radius: 10px; font-weight: 700; letter-spacing: 0.2px; flex-shrink: 0; }
.vision-card .days-badge .num { font-size: 22px; line-height: 1; }
.vision-card .days-badge .unit { font-size: 12px; opacity: 0.9; }
.vision-card .days-badge .label { font-size: 12px; opacity: 0.9; margin-left: 6px; }
.vision-card .days-badge.future { color: #fff; background: linear-gradient(135deg, var(--gradient-light-start), var(--gradient-light-end)); box-shadow: 0 6px 16px rgba(79,70,229,0.25); }
.vision-card .days-badge.past { color: #111827; background: #F3F4F6; border: 1px solid rgba(0,0,0,0.06); }

.vision-card h2 { font-size: 22px; font-weight: 800; margin: 0; color: #0F172A; flex: 1 1 100%; min-width: 0; white-space: normal; overflow: visible; text-overflow: unset; line-height: 1.3; }

.vision-card-meta { display: flex; align-items: center; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.vision-card .chip { display: inline-flex; align-items: center; gap: 6px; padding: 6px 10px; border-radius: 999px; font-size: 13px; background: #F8FAFF; border: 1px solid rgba(59,130,246,0.14); color: #0F172A; }

.vision-card .milestone-count {
    color: var(--text);
    opacity: 0.7;
    font-size: 14px;
}

/* Vision card: completion note */
.vision-card-note {
    margin-top: 12px;
    color: #374151;
    font-size: 14px;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    word-break: break-word;
}
.vision-card-note .note-icon { margin-right: 8px; opacity: 0.7; font-size: 15px; }

/* ===== Vision labels (top list) ===== */
.vision-labels { display: flex; flex-wrap: wrap; gap: 10px; margin: 6px 0 18px; }
.vision-chip { display: inline-flex; align-items: center; gap: 8px; padding: 8px 12px; border-radius: 999px; border: 1px solid rgba(59,130,246,0.18); background: #FFFFFF; color: #0F172A; font-size: 13px; cursor: pointer; transition: box-shadow 0.2s ease, transform 0.1s ease; }
.vision-chip:hover { box-shadow: 0 3px 10px rgba(0,0,0,0.08); transform: translateY(-1px); }
.vision-chip .name { font-weight: 700; }
.vision-chip .delta { opacity: 0.85; }
.vision-chip .delta.future { color: #1D4ED8; }
.vision-chip .delta.past { color: #6B7280; }

/* Highlight target card briefly */
@keyframes flashPulse { 0% { box-shadow: 0 0 0 rgba(59,130,246,0); } 50% { box-shadow: 0 0 0 6px rgba(59,130,246,0.25); } 100% { box-shadow: 0 0 0 rgba(59,130,246,0); } }
.vision-card.flash { animation: flashPulse 0.9s ease; }
.vision-card-note .note-text { opacity: 0.9; }

[data-theme="dark"] .vision-card-note { color: rgba(224,230,237,0.85); }
[data-theme="dark"] .vision-card-note .note-icon { opacity: 0.75; }

.vision-actions {
    display: flex;
    gap: 8px;
    margin-top: 16px;
}

.vision-actions button {
    padding: 8px 16px;
    font-size: 14px;
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.05);
    border: none;
    cursor: pointer;
    transition: background 0.2s ease;
}

.vision-actions button:hover {
    background: rgba(0, 0, 0, 0.1);
}

.vision-actions button.delete {
    background: rgba(239, 68, 68, 0.1);
    color: #EF4444;
}

.vision-actions button.delete:hover {
    background: rgba(239, 68, 68, 0.2);
}

/* Theme Toggle */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--card);
    border: 2px solid var(--border);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s ease;
    z-index: 100;
}

.theme-toggle:hover {
    transform: scale(1.1);
}

/* Timeline */
.timeline {
    position: relative;
    width: 100%;
    height: clamp(360px, 60vh, 680px);
    overflow-x: auto;
    overflow-y: hidden;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: #FFFFFF;
    padding-top: 48px;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-x: contain;
    touch-action: pan-x;
}

/* ドラッグ中は縦スクロールを無効化 */
.timeline.no-scroll { overflow-y: hidden !important; touch-action: none; }

.timeline-track {
    position: absolute;
    height: 100%;
    min-width: 100%;
}

.month-label {
    position: absolute;
    color: rgba(128, 128, 128, 0.5);
    font-size: 12px;
    top: 20px;
}

.current-line {
    position: absolute;
    width: 2px;
    height: 100%;
    background: linear-gradient(180deg, var(--accent-start), var(--accent-end));
    opacity: 0.7;
    box-shadow: 0 0 10px rgba(124, 58, 237, 0.3);
}

.current-line-label {
    position: absolute;
    top: 8px;
    transform: translateX(-50%);
    background: #fff;
    border: 1px solid rgba(0,0,0,0.06);
    padding: 4px 8px;
    border-radius: 8px;
    font-size: 12px;
    color: #374151;
    white-space: nowrap;
    display: none;
}

.due-date-pin {
    position: absolute;
    right: calc(12px + env(safe-area-inset-right));
    top: calc(12px + env(safe-area-inset-top));
    padding: 8px 16px;
    background: #DBEAFE;
    color: #1E3A8A;
    border-radius: 20px;
    font-weight: 600;
    font-size: 14px;
    box-shadow: 0 2px 10px rgba(59, 130, 246, 0.18);
    border: 1px solid rgba(59,130,246,0.16);
    z-index: 5;
    pointer-events: none;
    text-shadow: 0 1px 0 rgba(255,255,255,0.7);
}
/* ルーラー内配置時の位置（月数字より上にずらす） */
.timeline-ruler .due-date-pin { top: 6px; right: calc(12px + env(safe-area-inset-right)); }

.quarter-line {
    position: absolute;
    width: 1px;
    height: 100%;
    background: var(--border);
    opacity: 0.3;
}

/* Milestones */
.milestone {
    position: absolute;
    cursor: move;
    user-select: none;
    transition: transform 0.12s ease;
}

.milestone-dot {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent);
    border: 2px solid #fff;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

.milestone-bar {
    height: 12px;
    background: var(--accent);
    border-radius: 4px;
    opacity: 0.95;
    position: relative;
    box-shadow: 0 2px 8px rgba(0,0,0,0.12);
}

.milestone-resize {
    position: absolute;
    width: 12px;
    height: 20px;
    top: -6px;
    cursor: ew-resize;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 2px;
    opacity: 0;
    transition: opacity 0.2s;
}

.milestone:hover .milestone-resize {
    opacity: 1;
}

.milestone-resize.left {
    left: -6px;
}

.milestone-resize.right {
    right: -6px;
}

.milestone-label {
    font-size: 15px;
    margin-top: 8px;
    white-space: normal;
    overflow: visible;
    text-overflow: unset;
    max-width: none;
    background: #fff;
    border: 1px solid rgba(0,0,0,0.06);
    padding: 8px 12px;
    border-radius: 12px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.06);
    word-break: break-word;
}

.milestone:hover { transform: translateY(-2px); }

/* ETA visualization */
.eta-line { display: none; }
.eta-line.future { display: none; }
.eta-line.past { display: none; }
.eta-badge { display: inline-block; margin-top: 4px; padding: 2px 8px; font-size: 12px; border-radius: 999px; border: 1px solid rgba(0,0,0,0.06); }
.eta-badge.future { background: #EEF2FF; color: #4338CA; }
.eta-badge.past { background: #F3F4F6; color: #4B5563; }

/* Colorful milestone palette */
.ms-color-0 .milestone-dot, .ms-color-0 .milestone-bar { background: #EF4444 !important; }
.ms-color-1 .milestone-dot, .ms-color-1 .milestone-bar { background: #F97316 !important; }
.ms-color-2 .milestone-dot, .ms-color-2 .milestone-bar { background: #F59E0B !important; }
.ms-color-3 .milestone-dot, .ms-color-3 .milestone-bar { background: #10B981 !important; }
.ms-color-4 .milestone-dot, .ms-color-4 .milestone-bar { background: #14B8A6 !important; }
.ms-color-5 .milestone-dot, .ms-color-5 .milestone-bar { background: #06B6D4 !important; }
.ms-color-6 .milestone-dot, .ms-color-6 .milestone-bar { background: #3B82F6 !important; }
.ms-color-7 .milestone-dot, .ms-color-7 .milestone-bar { background: #6366F1 !important; }
.ms-color-8 .milestone-dot, .ms-color-8 .milestone-bar { background: #8B5CF6 !important; }
.ms-color-9 .milestone-dot, .ms-color-9 .milestone-bar { background: #EC4899 !important; }

/* Label accent by color */
.ms-color-0 .milestone-label { border-left: 4px solid #EF4444; padding-left: 10px; }
.ms-color-1 .milestone-label { border-left: 4px solid #F97316; padding-left: 10px; }
.ms-color-2 .milestone-label { border-left: 4px solid #F59E0B; padding-left: 10px; }
.ms-color-3 .milestone-label { border-left: 4px solid #10B981; padding-left: 10px; }
.ms-color-4 .milestone-label { border-left: 4px solid #14B8A6; padding-left: 10px; }
.ms-color-5 .milestone-label { border-left: 4px solid #06B6D4; padding-left: 10px; }
.ms-color-6 .milestone-label { border-left: 4px solid #3B82F6; padding-left: 10px; }
.ms-color-7 .milestone-label { border-left: 4px solid #6366F1; padding-left: 10px; }
.ms-color-8 .milestone-label { border-left: 4px solid #8B5CF6; padding-left: 10px; }
.ms-color-9 .milestone-label { border-left: 4px solid #EC4899; padding-left: 10px; }

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
}

.modal.active {
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background: var(--card);
    border-radius: 16px;
    padding: 32px;
    width: 90%;
    max-width: 500px;
    max-height: 80vh;
    overflow-y: auto;
}

/* Forms */
input, textarea, select {
    width: 100%;
    padding: 12px;
    margin: 8px 0;
    background: var(--bg);
    border: 1px solid rgba(128, 128, 128, 0.2);
    border-radius: 8px;
    color: var(--text);
    font-family: inherit;
}

button {
    padding: 12px 24px;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    transition: opacity 0.2s ease;
}

button:hover {
    opacity: 0.9;
}

/* Animations */
@keyframes scaleIn {
    from {
        transform: scale(0.95);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.animate-in {
    animation: scaleIn 0.2s ease;
}

.fade-in {
    animation: fadeIn 0.3s ease;
}

.slide-up {
    animation: slideUp 0.3s ease;
}

/* Undo Toast */
.undo-toast {
    position: fixed;
    bottom: calc(20px + env(safe-area-inset-bottom));
    left: 50%;
    transform: translateX(-50%);
    background: var(--card);
    padding: 12px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 1000;
    animation: slideUp 0.3s ease;
}

.undo-toast button {
    padding: 6px 12px;
    font-size: 14px;
}

/* Responsive */
@media (max-width: 768px) {
    .container { padding: 10px 12px calc(20px + env(safe-area-inset-bottom)); }
    .modal.active { align-items: flex-end; }
    .modal-content { width: 100%; max-width: none; padding: 16px 16px calc(12px + env(safe-area-inset-bottom)); border-radius: 16px 16px 0 0; max-height: 85vh; }
    .modal-content::before { content: ''; display: block; width: 44px; height: 4px; background: rgba(0,0,0,0.12); border-radius: 999px; margin: 0 auto 10px; }
    .timeline { height: clamp(320px, 56vh, 520px); margin-bottom: calc(80px + env(safe-area-inset-bottom)); }
    
    .theme-toggle {
        width: 40px;
        height: 40px;
    }
    /* Larger tap targets & readable text */
    button, .vision-actions button { min-height: 44px; font-size: 15px; }
    input, select, textarea { min-height: 44px; font-size: 16px; }
    .milestone-dot { width: 20px; height: 20px; }
    .milestone-label { font-size: clamp(12px, 3.8vw, 15px); }
}

/* Mobile bottom action bar */
.bottom-bar { display: none; }
@media (max-width: 768px) {
  .bottom-bar { position: fixed; left: 0; right: 0; bottom: 0; z-index: 300; display: flex; gap: 10px; padding: 10px 16px calc(10px + env(safe-area-inset-bottom)); background: rgba(255,255,255,0.92); backdrop-filter: saturate(180%) blur(10px); border-top: 1px solid rgba(0,0,0,0.06); }
  .bottom-bar button { flex: 1; font-weight: 700; }
}
body.modal-open .bottom-bar { display: none !important; }

/* === UI Refresh Overrides (White-first, modern) === */
:root { --bg-light: #FFFFFF; }
body { line-height: 1.6; font-size: 16px; }
.container { max-width: 1120px; padding: 24px 20px 60px; }

/* Header */
.app-header { position: sticky; top: 0; z-index: 200; background: #FFFFFFCC; backdrop-filter: saturate(180%) blur(8px); border-bottom: 1px solid rgba(0,0,0,0.06); padding-top: env(safe-area-inset-top); }
.app-header-inner { max-width: 1120px; margin: 0 auto; padding: 14px 20px; display: flex; align-items: center; justify-content: space-between; position: relative; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: #111827; cursor: pointer; }
.brand-mark { width: 28px; height: 28px; border-radius: 8px; background: linear-gradient(135deg, var(--brand-grad-start), var(--brand-grad-end)); }
.header-actions { display: flex; gap: 10px; }

/* Hero */
.hero { background: #fff; border: 1px solid rgba(0,0,0,0.06); border-radius: 20px; margin: 18px 0 36px; color: var(--text); box-shadow: 0 10px 30px rgba(0,0,0,0.05); padding: 56px 20px; }
.hero h1 { font-size: 40px; font-weight: 800; margin-bottom: 12px; letter-spacing: -0.5px; }
.hero p { font-size: 16px; opacity: 0.8; margin-bottom: 24px; }
.hero-button { background: var(--accent); color: #fff; padding: 14px 28px; border-radius: 12px; font-weight: 700; font-size: 15px; border: none; cursor: pointer; transition: transform 0.2s ease, box-shadow 0.2s ease; box-shadow: 0 6px 16px rgba(79, 70, 229, 0.25); }
.hero-button:hover { transform: translateY(-1px); box-shadow: 0 10px 24px rgba(79, 70, 229, 0.35); }

/* Stylish brand title colors */
#brandButton { background: linear-gradient(135deg, var(--brand-grad-start), var(--brand-grad-end)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero h1 { background: linear-gradient(135deg, var(--brand-grad-start), var(--brand-grad-end)); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* Cards */
.vision-card { background: linear-gradient(180deg, #F4F7FF, #EEF4FF); border-radius: 16px; padding: 24px; border: 1px solid rgba(59,130,246,0.14); transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1); }
.vision-card:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(0,0,0,0.06); }
.vision-card .due-date { background: #EEF2FF; color: #4338CA; border-radius: 999px; font-size: 13px; font-weight: 600; }

/* 展開ボタン */
.vision-expand-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: linear-gradient(135deg, #667EEA, #764BA2);
    color: white;
    border: none;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.vision-expand-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.25);
}

.expand-icon {
    font-size: 10px;
    transition: transform 0.3s;
}

.vision-card.expanded .expand-icon {
    transform: rotate(180deg);
}
.vision-actions button { padding: 8px 14px; font-size: 13px; border-radius: 8px; background: #F3F4F6; border: 1px solid rgba(0,0,0,0.06); }
.vision-actions button:hover { background: #E5E7EB; }

/* Toggles */
.theme-toggle { background: #fff; border: 1px solid rgba(0,0,0,0.08); }

/* Timeline */
.timeline { background: #FAFAFA; }
.month-label { color: #9CA3AF; }
.due-date-pin { padding: 8px 12px; background: #EEF2FF; color: #4338CA; border-radius: 999px; font-weight: 700; font-size: 12px; box-shadow: none; border: 1px solid rgba(0,0,0,0.06); }
.milestone-bar { opacity: 0.9; }

/* Brand menu (import/export) */
.brand-menu { position: absolute; left: 20px; top: calc(100% + 8px); background: rgba(255,255,255,0.98); border: 1px solid rgba(0,0,0,0.08); border-radius: 12px; box-shadow: 0 10px 24px rgba(0,0,0,0.12); padding: 8px; display: none; z-index: 300; }
.brand-menu.open { display: block; }
.brand-menu button { display: block; width: 100%; text-align: left; background: transparent; color: #111827; border: none; box-shadow: none; padding: 10px 12px; border-radius: 8px; }
.brand-menu button:hover { background: #F3F4F6; }

/* Modal & Forms */
.modal-content { background: #fff; border: 1px solid rgba(0,0,0,0.06); box-shadow: 0 20px 40px rgba(0,0,0,0.12); }
input, textarea, select { background: #fff; border: 1px solid rgba(0,0,0,0.12); border-radius: 10px; }
input:focus, textarea:focus, select:focus { outline: none; border-color: #6366F1; box-shadow: 0 0 0 3px rgba(99,102,241,0.15); }

/* Buttons */
button { padding: 12px 20px; border-radius: 10px; font-weight: 600; box-shadow: 0 6px 16px rgba(79,70,229,0.15); }
button:hover { transform: translateY(-1px); box-shadow: 0 10px 24px rgba(79,70,229,0.25); }

/* Toast */
.undo-toast { background: #fff; box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12); border: 1px solid rgba(0,0,0,0.06); }

/* Dark theme corrections for white-first components */
[data-theme="dark"] .app-header { background: #11161CEE; border-bottom: 1px solid rgba(255,255,255,0.08); }
[data-theme="dark"] .brand { color: var(--text); }
[data-theme="dark"] .hero { background: var(--card); color: var(--text); border: 1px solid var(--border); box-shadow: none; }
[data-theme="dark"] .vision-card { background: linear-gradient(180deg, rgba(17,24,39,0.88), rgba(17,24,39,0.80)); border: 1px solid rgba(255,255,255,0.08); box-shadow: 0 12px 28px rgba(0,0,0,0.45); }
[data-theme="dark"] .vision-card h2 { color: var(--text); }
[data-theme="dark"] .vision-card .chip { background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.12); color: var(--text); }
[data-theme="dark"] .vision-card .days-badge.past { background: rgba(255,255,255,0.08); color: #E5E7EB; border: 1px solid rgba(255,255,255,0.12); }
[data-theme="dark"] .vision-expand-btn { background: linear-gradient(135deg, rgba(124, 58, 237, 0.6), rgba(6, 182, 212, 0.6)); }
[data-theme="dark"] .modal-content { background: var(--card); border: 1px solid var(--border); box-shadow: 0 20px 40px rgba(0,0,0,0.6); }
[data-theme="dark"] .theme-toggle { background: var(--card); border: 1px solid var(--border); }
[data-theme="dark"] .undo-toast { background: var(--card); border: 1px solid var(--border); box-shadow: 0 8px 24px rgba(0,0,0,0.6); }
[data-theme="dark"] .vision-actions button { background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.12); color: var(--text); }
[data-theme="dark"] .timeline { background: #0B0F14; border: 1px solid var(--border); }
[data-theme="dark"] .month-label { color: rgba(224,230,237,0.6); }

/* Timeline UI: Ruler and Grid */
.timeline-bar { display:flex; align-items:center; justify-content:space-between; padding: 12px 20px; }
.timeline-meta { color: #6B7280; font-size: 14px; }
.timeline-today { color: #374151; }
.timeline-controls { display:flex; align-items:center; gap: 10px; font-size: 13px; color: #374151; }
.timeline-controls input[type="range"] { width: 160px; }
.timeline-controls .add-ms-btn { font-weight: 700; background: linear-gradient(135deg, var(--gradient-light-start), var(--gradient-light-end)); color: #fff; border: none; padding: 8px 14px; border-radius: 10px; box-shadow: 0 6px 16px rgba(79,70,229,0.20); }
.timeline-controls .add-ms-btn:hover { transform: translateY(-1px); box-shadow: 0 10px 22px rgba(79,70,229,0.28); }

/* Mobile-friendly slider */
@media (max-width: 768px) {
  .timeline-controls input[type="range"] { width: 48vw; height: 32px; }
  input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; height: 26px; width: 26px; border-radius: 50%; background: #6366F1; box-shadow: 0 2px 6px rgba(0,0,0,0.2); }
  input[type="range"]::-webkit-slider-runnable-track { height: 6px; border-radius: 999px; background: #E5E7EB; }
}

.timeline-ruler { position: sticky; top: 0; height: 56px; background: #FFFFFFE6; border-bottom: 1px solid rgba(0,0,0,0.06); z-index: 2; }
[data-theme="dark"] .timeline-ruler { background: #11161CEE; border-bottom: 1px solid rgba(255,255,255,0.08); }
.ruler-tick { position: absolute; top: 0; width: 1px; height: 40px; background: rgba(0,0,0,0.08); }
[data-theme="dark"] .ruler-tick { background: rgba(255,255,255,0.12); }
.ruler-label { position: absolute; top: 6px; font-size: 12px; color: #6B7280; }
[data-theme="dark"] .ruler-label { color: rgba(224,230,237,0.75); }
/* Month markers */
.month-divider { position: absolute; top: 0; width: 2px; height: 100%; background: rgba(0,0,0,0.12); z-index: 1; }
[data-theme="dark"] .month-divider { background: rgba(255,255,255,0.18); }
.month-number { position: absolute; top: 38px; transform: translateX(-50%); font-size: 12px; font-weight: 700; color: #374151; }
[data-theme="dark"] .month-number { color: rgba(224,230,237,0.9); }
/* Weekly grid */
.grid-week { position: absolute; width: 1px; height: 100%; background: rgba(0,0,0,0.04); }
[data-theme="dark"] .grid-week { background: rgba(255,255,255,0.08); }

/* Today badge */
.today-badge { background: #FEF3C7; color: #92400E; padding: 4px 10px; border-radius: 999px; border: 1px solid rgba(0,0,0,0.06); font-weight: 700; }

.grid-month { position: absolute; width: 1px; height: 100%; background: rgba(0,0,0,0.05); }
[data-theme="dark"] .grid-month { background: rgba(255,255,255,0.08); }
.grid-quarter { position: absolute; width: 2px; height: 100%; background: rgba(79,70,229,0.35); }
[data-theme="dark"] .grid-quarter { background: rgba(124,58,237,0.55); }

/* Milestone colors by type */
.milestone.type-day .milestone-dot { background: #10B981; }
.milestone.type-month .milestone-dot { background: #F59E0B; }
.milestone.type-range .milestone-bar { background: linear-gradient(90deg, #60A5FA, #7C3AED); opacity: 0.9; }
[data-theme="dark"] .milestone-label { background: var(--card); border: 1px solid var(--border); }

/* Prevent page scroll during drag or modal */
body.dragging, body.modal-open { overflow: hidden; overscroll-behavior: none; }

/* Improve touch handling for timeline and milestones */
.timeline * { -webkit-tap-highlight-color: transparent; }
.milestone { touch-action: none; }

/* Color palette in modal */
.color-palette { display: grid; grid-template-columns: repeat(10, 1fr); gap: 8px; margin: 6px 0 12px; }
.color-swatch { width: 28px; height: 28px; border-radius: 50%; border: 2px solid #fff; box-shadow: 0 2px 6px rgba(0,0,0,0.15); cursor: pointer; }
.color-swatch.selected { outline: 3px solid #111827; }
.color-swatch.ms-color-0 { background: #EF4444; }
.color-swatch.ms-color-1 { background: #F97316; }
.color-swatch.ms-color-2 { background: #F59E0B; }
.color-swatch.ms-color-3 { background: #10B981; }
.color-swatch.ms-color-4 { background: #14B8A6; }
.color-swatch.ms-color-5 { background: #06B6D4; }
.color-swatch.ms-color-6 { background: #3B82F6; }
.color-swatch.ms-color-7 { background: #6366F1; }
.color-swatch.ms-color-8 { background: #8B5CF6; }
.color-swatch.ms-color-9 { background: #EC4899; }

/* === Glass Mobile Refresh: cool (white/blue/black) === */
:root {
  --gradient-light-start: #93C5FD; /* light blue */
  --gradient-light-end: #3B82F6;   /* blue */
  --brand-grad-start: #7C3AED;     /* purple */
  --brand-grad-end: #06B6D4;       /* cyan */
}
[data-theme="light"] {
  --accent: linear-gradient(135deg, var(--gradient-light-start), var(--gradient-light-end));
}

@media (max-width: 768px) {
  body {
    background: linear-gradient(180deg, #FFF7ED 0%, #FFFBEB 100%);
  }
  .app-header {
    background: rgba(255,255,255,0.82);
    border-bottom: 1px solid rgba(59,130,246,0.18);
    backdrop-filter: saturate(180%) blur(16px);
  }
  .hero {
    background: rgba(255,255,255,0.66);
    border: 1px solid rgba(59,130,246,0.14);
    backdrop-filter: blur(20px);
    box-shadow: 0 20px 40px rgba(59,130,246,0.10);
  }
  .hero h1 { font-size: clamp(24px, 6.2vw, 36px); }
  .hero p { font-size: clamp(14px, 4vw, 16px); }
  .hero-button { box-shadow: 0 8px 24px rgba(59,130,246,0.20); }

  .vision-card {
    background: linear-gradient(180deg, rgba(147,197,253,0.22), rgba(99,102,241,0.16));
    border: 1px solid rgba(59,130,246,0.18);
    backdrop-filter: blur(14px);
    box-shadow: 0 10px 30px rgba(59,130,246,0.12);
  }
  .vision-card .due-date {
    background: #DBEAFE;
    color: #1E3A8A;
  }

  .timeline {
    background: rgba(255,255,255,0.72);
    border: 1px solid rgba(59,130,246,0.14);
    backdrop-filter: blur(10px);
  }
  .timeline-ruler {
    background: rgba(255,255,255,0.80);
    border-bottom: 1px solid rgba(59,130,246,0.16);
  }
  .due-date-pin {
    background: #DBEAFE;
    color: #1E3A8A;
    border: 1px solid rgba(59,130,246,0.14);
    box-shadow: none;
  }
  .milestone-label {
    background: rgba(255,255,255,0.86);
    border: 1px solid rgba(59,130,246,0.14);
    backdrop-filter: blur(10px);
  }
  .today-badge { background: #E0F2FE; color: #075985; }

  .bottom-bar {
    background: rgba(255,255,255,0.78);
    border-top: 1px solid rgba(59,130,246,0.14);
  }

  button, .hero-button {
    background: var(--accent);
    box-shadow: 0 8px 24px rgba(59,130,246,0.20);
  }
  button:hover, .hero-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 12px 28px rgba(59,130,246,0.26);
  }
  input:focus, textarea:focus, select:focus {
    border-color: #3B82F6;
    box-shadow: 0 0 0 3px rgba(59,130,246,0.22);
  }
}

/* Timeline top bar layout fix on small screens */
@media (max-width: 768px) {
  .timeline-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 12px;
  }
  .timeline-meta, .timeline-today { flex: 1 1 auto; }
  .timeline-controls { flex: 1 1 100%; }
  .timeline-controls label { display: inline-block; margin-bottom: 4px; }
}

/* Avoid overlap with ruler and top bar */
.timeline { padding-top: 56px; }
.due-date-pin { top: 60px; }
}

/* Edge home button (mobile) */
@media (max-width: 768px) {
  .edge-home {
    position: fixed;
    left: 0;
    top: calc(72px + env(safe-area-inset-top));
    width: 36px;
    height: 36px;
    border-radius: 0 999px 999px 0;
    background: rgba(255,255,255,0.92);
    border: 1px solid rgba(0,0,0,0.08);
    box-shadow: 0 6px 16px rgba(0,0,0,0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 260;
  }
}

/* Milestone Expansion - ビジョンカード下に展開 */
.vision-card.expanded {
    margin-bottom: 20px;
}

.milestone-expansion {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 2px solid rgba(59, 130, 246, 0.14);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.milestone-timeline-btn-wrapper {
    margin-bottom: 16px;
}

.milestone-timeline-btn {
    width: 100%;
    padding: 12px 20px;
    background: linear-gradient(135deg, #667EEA, #764BA2);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.3s;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.25);
}

.milestone-timeline-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.35);
}

.timeline-icon {
    font-size: 18px;
}

.milestone-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.milestone-item {
    background: white;
    border-radius: 12px;
    padding: 16px;
    border: 1px solid rgba(0, 0, 0, 0.06);
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.milestone-item:hover {
    transform: translateX(4px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08);
    border-color: rgba(59, 130, 246, 0.2);
}

.milestone-item-header {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.milestone-number {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
    flex-shrink: 0;
}

.milestone-item-content {
    flex: 1;
    min-width: 0;
}

.milestone-item-title {
    font-size: 16px;
    font-weight: 700;
    color: #0F172A;
    margin: 0 0 8px 0;
    line-height: 1.3;
}

.milestone-item-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 8px;
}

.milestone-period {
    font-size: 13px;
    color: #6B7280;
}

.milestone-status {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
}

.milestone-status.future {
    background: #EFF6FF;
    color: #3B82F6;
}

.milestone-status.active {
    background: #FEF3C7;
    color: #D97706;
}

.milestone-status.completed {
    background: #D1FAE5;
    color: #059669;
}

.status-icon {
    font-size: 14px;
}

.milestone-item-desc {
    font-size: 14px;
    color: #4B5563;
    line-height: 1.5;
    margin: 8px 0 0 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.milestone-item-actions {
    display: flex;
    align-items: center;
}

.milestone-edit-btn {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    border: none;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.milestone-edit-btn:hover {
    background: rgba(59, 130, 246, 0.1);
}

.edit-icon {
    font-size: 16px;
}

.milestone-progress-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.milestone-progress-track {
    flex: 1;
    height: 8px;
    background: #F3F4F6;
    border-radius: 999px;
    overflow: hidden;
    position: relative;
}

.milestone-progress-fill {
    height: 100%;
    border-radius: 999px;
    transition: width 0.3s ease;
}

.milestone-progress-text {
    font-size: 12px;
    font-weight: 600;
    color: #6B7280;
    min-width: 35px;
    text-align: right;
}

/* 空状態 */
.milestone-expansion-empty {
    text-align: center;
    padding: 32px 20px;
}

.milestone-empty-icon {
    font-size: 36px;
    opacity: 0.5;
    display: block;
    margin-bottom: 12px;
}

.milestone-expansion-empty p {
    font-size: 14px;
    color: #6B7280;
    margin: 0 0 16px 0;
}

/* 追加ボタン */
.milestone-add-footer {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px dashed rgba(0, 0, 0, 0.1);
}

.milestone-add-btn-inline {
    width: 100%;
    padding: 12px;
    background: transparent;
    border: 2px dashed rgba(59, 130, 246, 0.3);
    border-radius: 12px;
    color: #3B82F6;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s;
}

.milestone-add-btn-inline:hover {
    background: rgba(59, 130, 246, 0.05);
    border-color: rgba(59, 130, 246, 0.5);
}

.add-icon {
    font-size: 20px;
    font-weight: 400;
}

/* Dark theme adjustments */
[data-theme="dark"] .milestone-item {
    background: rgba(17, 22, 28, 0.6);
    border-color: rgba(255, 255, 255, 0.08);
}

[data-theme="dark"] .milestone-item-title {
    color: #E0E6ED;
}

[data-theme="dark"] .milestone-progress-track {
    background: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .milestone-progress-bar {
    border-top-color: rgba(255, 255, 255, 0.08);
}

[data-theme="dark"] .milestone-add-footer {
    border-top-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .milestone-add-btn-inline {
    border-color: rgba(124, 58, 237, 0.3);
    color: #A78BFA;
}

[data-theme="dark"] .milestone-add-btn-inline:hover {
    background: rgba(124, 58, 237, 0.1);
    border-color: rgba(124, 58, 237, 0.5);
}

/* Responsive design */
@media (max-width: 768px) {
    .milestone-item-header {
        flex-wrap: wrap;
    }
    
    .milestone-item-meta {
        font-size: 12px;
    }
    
    .milestone-item-title {
        font-size: 15px;
    }
}