@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;600;700;800&display=swap');

:root {
    --bg: #050912;
    --surface: rgba(12, 23, 40, .92);
    --surface-2: rgba(16, 31, 52, .88);
    --line: rgba(93, 211, 255, .18);
    --cyan: #32d5ff;
    --blue: #2e7cff;
    --text: #edf8ff;
    --muted: #91a8bb;
    --danger: #ff637d;
    --shadow: 0 18px 50px rgba(0, 0, 0, .35);
}

* { box-sizing: border-box; }
html {
    width: 100% !important;
    max-width: none !important;
    margin: 0 !important;
    padding: 0 !important;
    color-scheme: dark;
}
body {
    width: 100% !important;
    max-width: none !important;
    margin: 0 !important;
    padding: 0 !important;
    min-height: 100vh;
    display: block !important;
    font-family: "Noto Sans JP", system-ui, sans-serif !important;
    color: var(--text) !important;
    background:
        radial-gradient(circle at 14% 8%, rgba(22, 116, 196, .20), transparent 30rem),
        linear-gradient(rgba(5, 9, 18, .94), rgba(5, 9, 18, .98)),
        url("assets/ai-construction-robot.png") center 18% / min(980px, 92vw) auto fixed no-repeat,
        var(--bg) !important;
}
body::after {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -1;
    opacity: .15;
    background-image: linear-gradient(rgba(50,213,255,.18) 1px, transparent 1px), linear-gradient(90deg, rgba(50,213,255,.18) 1px, transparent 1px);
    background-size: 44px 44px;
    mask-image: linear-gradient(to bottom, #000, transparent 72%);
}

.app-masthead {
    position: relative;
    z-index: 5;
    width: 100% !important;
    max-width: none !important;
    padding: 24px 20px 18px;
    text-align: center;
    background: linear-gradient(180deg, rgba(3,8,17,.98), rgba(3,8,17,.78));
    border-bottom: 1px solid var(--line);
}
.app-masthead::before {
    content: "AI CONSTRUCTION FINANCE SYSTEM";
    display: block;
    margin-bottom: 5px;
    color: var(--cyan);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .24em;
}
.app-masthead-title {
    margin: 0;
    font-size: clamp(24px, 3.4vw, 40px);
    line-height: 1.25;
    letter-spacing: .08em;
    font-weight: 800;
    text-shadow: 0 0 28px rgba(50,213,255,.26);
}
.app-masthead-title span { color: var(--cyan); }

.main-nav {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(6, 13, 25, .88) !important;
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(16px);
    width: 100% !important;
    max-width: none !important;
}
.nav-inner {
    width: 100% !important;
    max-width: 1180px !important;
    margin-left: auto !important;
    margin-right: auto !important;
    padding: 10px 20px !important;
}
.logo { color: var(--muted) !important; font-size: 12px !important; letter-spacing: .08em; }
.nav-links a {
    color: #c8d8e5 !important;
    border: 1px solid transparent;
    border-radius: 8px !important;
    transition: .2s ease;
}
.nav-links a:hover {
    color: #fff !important;
    background: rgba(50,213,255,.08) !important;
    border-color: var(--line);
    transform: translateY(-1px);
}

.container, .box, .login-box {
    position: relative;
    z-index: 1;
}
.container {
    width: 100% !important;
    max-width: 1180px !important;
    margin-left: auto !important;
    margin-right: auto !important;
    padding: 38px 20px 64px !important;
}
.box, .login-box {
    width: calc(100% - 32px) !important;
    max-width: 860px !important;
    margin: 42px auto 64px !important;
    padding: clamp(24px, 5vw, 44px) !important;
}
.login-box { max-width: 460px !important; }
.box, .login-box, .section, .summary-card, .category-card, .search-box, .filter, .card, .table-wrap, .table-container {
    color: var(--text) !important;
    background: linear-gradient(145deg, rgba(17,32,53,.96), rgba(8,17,31,.94)) !important;
    border: 1px solid var(--line) !important;
    border-radius: 14px !important;
    box-shadow: var(--shadow) !important;
}
.summary-card, .section, .category-card, .card { border-left: 1px solid var(--line) !important; }
.summary-card:hover, .category-card:hover { border-color: rgba(50,213,255,.45) !important; }

h1, h2, h3 { color: var(--text) !important; letter-spacing: .02em; }
.box > h1, .login-box > h1 { text-align: center; }
p, .description, .page-title p, .card-title, .summary-card-title, .category-name, .category-count { color: var(--muted) !important; }
.page-title, .header { text-align: center; }
.page-title {
    min-height: 330px;
    margin: 0 0 26px !important;
    padding: 64px 48% 42px 42px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: left;
    overflow: hidden;
    background:
        linear-gradient(90deg, rgba(7,17,32,.98) 0%, rgba(7,17,32,.90) 42%, rgba(7,17,32,.16) 78%),
        url("assets/ai-construction-robot.png") 82% 33% / 58% auto no-repeat,
        linear-gradient(145deg, rgba(17,32,53,.96), rgba(8,17,31,.94));
    border: 1px solid var(--line);
    border-radius: 16px;
    box-shadow: var(--shadow);
}
.page-title::before {
    content: "AI EXPENSE CONTROL";
    margin-bottom: 12px;
    color: var(--cyan);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .18em;
}
.page-title h1 { font-size: clamp(30px, 4vw, 44px) !important; }
.page-title p { font-size: 16px; }
.header { align-items: center !important; }
.header .button { flex: 0 0 auto; }

label, .label { color: #b9cddd !important; font-weight: 600 !important; }
input, select, textarea {
    width: 100%;
    color: var(--text) !important;
    background: rgba(4, 11, 22, .82) !important;
    border: 1px solid rgba(129, 170, 200, .25) !important;
    border-radius: 9px !important;
    box-shadow: inset 0 1px 0 rgba(255,255,255,.03);
}
input::placeholder, textarea::placeholder { color: #60778a !important; }
input:focus, select:focus, textarea:focus {
    outline: none !important;
    border-color: var(--cyan) !important;
    box-shadow: 0 0 0 3px rgba(50,213,255,.12) !important;
}

button, .button, .action-button, .btn, input[type="submit"] {
    color: #fff !important;
    background: linear-gradient(135deg, var(--blue), #00aee8) !important;
    border: 1px solid rgba(112,224,255,.32) !important;
    border-radius: 9px !important;
    box-shadow: 0 8px 24px rgba(26,124,255,.22) !important;
    font-weight: 700 !important;
    transition: transform .18s ease, filter .18s ease, box-shadow .18s ease !important;
}
button:hover, .button:hover, .action-button:hover, .btn:hover, input[type="submit"]:hover {
    filter: brightness(1.1);
    transform: translateY(-1px);
    box-shadow: 0 10px 28px rgba(50,213,255,.27) !important;
}
.delete-button, .danger, button[style*="red"] { background: linear-gradient(135deg, #b9284b, #ef476f) !important; }

.upload-area {
    background: rgba(4,13,26,.66) !important;
    border: 1px dashed rgba(50,213,255,.5) !important;
    border-radius: 12px !important;
}
.upload-area:hover { background: rgba(50,213,255,.07) !important; }
#preview-image { border: 1px solid var(--line); border-radius: 12px; }

table { width: 100%; border-collapse: collapse; color: var(--text) !important; }
th { color: #9fe9ff !important; background: rgba(25,84,120,.25) !important; border-color: var(--line) !important; }
td { color: #dbeaf4 !important; background: rgba(5,12,23,.48) !important; border-color: rgba(103,150,181,.15) !important; }
tr:hover td { background: rgba(50,213,255,.055) !important; }
.value, .summary-card-value, .category-amount, .card-value, .chart-amount, .monthly-amount { color: var(--text) !important; }
.chart-bar-area, .monthly-bar-area { background: rgba(4,11,22,.82) !important; }
.chart-bar, .monthly-bar { background: linear-gradient(90deg, var(--blue), var(--cyan)) !important; box-shadow: 0 0 16px rgba(50,213,255,.25); }
.error { color: #ffb7c3 !important; background: rgba(147,31,57,.28) !important; border: 1px solid rgba(255,99,125,.35); }
.success { color: #9ef2d0 !important; background: rgba(18,119,83,.25) !important; }

@media (max-width: 700px) {
    .app-masthead { padding: 18px 14px 14px; }
    .app-masthead::before { font-size: 8px; letter-spacing: .14em; }
    .app-masthead-title { font-size: 24px; letter-spacing: .03em; }
    .main-nav { position: relative; }
    .nav-inner { gap: 8px !important; }
    .logo { text-align: center; }
    .nav-links { display: grid !important; grid-template-columns: repeat(2, minmax(0,1fr)); }
    .nav-links a { text-align: center; padding: 9px 6px !important; font-size: 12px !important; }
    .container { padding: 24px 12px 48px !important; }
    .page-title {
        min-height: 275px;
        padding: 32px 42% 28px 22px;
        background:
            linear-gradient(90deg, rgba(7,17,32,.98) 0%, rgba(7,17,32,.82) 48%, rgba(7,17,32,.10) 90%),
            url("assets/ai-construction-robot.png") 82% 26% / auto 118% no-repeat,
            linear-gradient(145deg, rgba(17,32,53,.96), rgba(8,17,31,.94));
    }
    .page-title h1 { font-size: 27px !important; }
    .page-title p { font-size: 13px; }
    .box, .login-box { width: calc(100% - 24px) !important; margin: 24px auto 48px !important; padding: 22px 16px !important; }
    .header { gap: 14px; flex-direction: column; }
    .header .button { width: 100%; text-align: center; }
    table { min-width: 720px; }
    .table-wrap, .table-container, .container > table { overflow-x: auto; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}