/* =============================================
   AIMouse — Sci-Fi Cyber Green Theme System
   ============================================= */

/* ===== DARK THEME (Default) ===== */
:root, [data-theme="dark"] {
    /* 主色 — 极客/科幻荧光绿 */
    --c-brand: #00ff9d;
    --c-brand-light: #66ffc2;
    --c-brand-dark: #00cc7d;
    --c-accent: #00f0ff;
    --c-accent-light: #66f6ff;
    --c-warm: #ff003c;
    --c-green: #00ff9d;
    --c-amber: #ffea00;
    --c-red: #ff3366;

    /* 科幻光影渐变 */
    --g-brand: linear-gradient(135deg, #00ff9d 0%, #00f0ff 100%);
    --g-warm: linear-gradient(135deg, #00f0ff 0%, #00ff9d 100%);
    --g-text: linear-gradient(90deg, #66ffc2, #00f0ff, #00ff9d, #66ffc2);
    --g-cta: linear-gradient(135deg, #00ff9d 0%, #00eaa8 50%, #00f0ff 100%);

    /* 极暗背景，更有深邃感 */
    --bg-base: #040907;
    --bg-surface: #07100c;
    --bg-elevated: #0a1813;
    --bg-card: rgba(7, 16, 12, 0.7);
    --bg-glass: rgba(10, 24, 19, 0.4);

    /* 极其硬朗的边框，具有发光感 */
    --b-subtle: rgba(0, 255, 157, 0.1);
    --b-medium: rgba(0, 255, 157, 0.25);
    --b-strong: rgba(0, 255, 157, 0.5);

    /* 偏酷冷的文字色彩 */
    --t-primary: #e0fff4;
    --t-secondary: #8abfa9;
    --t-muted: #56806e;

    /* 圆角：削弱圆润感，增强凌厉的科幻折角感 */
    --r-sm: 4px;
    --r-md: 8px;
    --r-lg: 12px;
    --r-xl: 16px;
    --r-full: 9999px;

    /* 荧光阴影 */
    --s-glow: 0 0 20px rgba(0, 255, 157, 0.2), inset 0 0 10px rgba(0, 255, 157, 0.05);
    --s-card: 0 8px 30px rgba(0, 0, 0, 0.6);
    --s-elevated: 0 15px 40px rgba(0, 0, 0, 0.8);

    --brand-rgb: 0, 255, 157;
    --accent-rgb: 0, 240, 255;

    --nav-bg: rgba(4, 9, 7, 0.6);
    --nav-bg-scrolled: rgba(4, 9, 7, 0.95);
    --nav-border: rgba(0, 255, 157, 0.15);

    --form-bg: rgba(7, 16, 12, 0.8);
    --form-bg-focus: rgba(10, 24, 19, 0.9);

    --toast-bg: rgba(10, 24, 19, 0.95);

    --ease: cubic-bezier(0.16, 1, 0.3, 1);
    --dur: 0.3s;
    --theme-dur: 0.4s;

    --font: 'Space Grotesk', 'Inter', 'Menlo', 'Consolas', -apple-system, sans-serif;

    color-scheme: dark;
}

/* ===== LIGHT THEME ===== */
[data-theme="light"] {
    --c-brand: #00b368;
    --c-brand-light: #00d47e;
    --c-brand-dark: #009456;
    --c-accent: #009db3;
    --c-accent-light: #00d0e6;
    --c-warm: #d90048;
    --c-green: #00a86b;
    --c-amber: #d9a400;
    --c-red: #d9264c;

    --g-brand: linear-gradient(135deg, #00b368 0%, #009db3 100%);
    --g-warm: linear-gradient(135deg, #009db3 0%, #00b368 100%);
    --g-text: linear-gradient(90deg, #00b368, #009db3, #00d47e, #00b368);
    --g-cta: linear-gradient(135deg, #00b368 0%, #00c68f 50%, #009db3 100%);

    --bg-base: #f5fcf9;
    --bg-surface: #ffffff;
    --bg-elevated: #eef8f4;
    --bg-card: rgba(255, 255, 255, 0.8);
    --bg-glass: rgba(255, 255, 255, 0.6);

    --b-subtle: rgba(0, 179, 104, 0.15);
    --b-medium: rgba(0, 179, 104, 0.3);
    --b-strong: rgba(0, 179, 104, 0.5);

    --t-primary: #0d1a14;
    --t-secondary: #40594d;
    --t-muted: #738c80;

    --s-glow: 0 0 20px rgba(0, 179, 104, 0.15), inset 0 0 10px rgba(0, 179, 104, 0.02);
    --s-card: 0 4px 20px rgba(0, 0, 0, 0.05);
    --s-elevated: 0 12px 30px rgba(0, 0, 0, 0.08);

    --brand-rgb: 0, 179, 104;
    --accent-rgb: 0, 157, 179;

    --nav-bg: rgba(245, 252, 249, 0.7);
    --nav-bg-scrolled: rgba(255, 255, 255, 0.95);
    --nav-border: rgba(0, 179, 104, 0.1);

    --form-bg: rgba(238, 248, 244, 0.8);
    --form-bg-focus: #ffffff;

    --toast-bg: rgba(255, 255, 255, 0.95);

    color-scheme: light;
}

/* ===== Reset ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
    font-family: var(--font); color: var(--t-primary);
    background: var(--bg-base); line-height: 1.6;
    min-height: 100vh; overflow-x: hidden;
    transition: background var(--theme-dur) var(--ease), color var(--theme-dur) var(--ease);
    background-image:
        radial-gradient(ellipse 80% 50% at 50% -10%, rgba(var(--brand-rgb), 0.12) 0%, transparent 60%),
        radial-gradient(ellipse 50% 40% at 85% 20%, rgba(var(--accent-rgb), 0.06) 0%, transparent 50%),
        radial-gradient(ellipse 50% 40% at 15% 60%, rgba(var(--accent-rgb), 0.03) 0%, transparent 50%);
    background-attachment: fixed;
}
[data-theme="light"] body {
    background-image:
        radial-gradient(ellipse 80% 50% at 50% -10%, rgba(var(--brand-rgb), 0.05) 0%, transparent 60%),
        radial-gradient(ellipse 50% 40% at 85% 20%, rgba(var(--accent-rgb), 0.03) 0%, transparent 50%);
}

/* 赛博朋克深邃网格 */
body::before {
    content: ''; position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: 0.4;
    background-image:
        linear-gradient(rgba(var(--brand-rgb), 0.25) 1px, transparent 1px),
        linear-gradient(90deg, rgba(var(--brand-rgb), 0.25) 1px, transparent 1px),
        linear-gradient(rgba(var(--brand-rgb), 0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(var(--brand-rgb), 0.08) 1px, transparent 1px);
    background-size: 50px 50px, 50px 50px, 10px 10px, 10px 10px;
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 95%);
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 95%);
}
[data-theme="light"] body::before { opacity: 0.15; }

a { color: var(--c-brand); text-decoration: none; transition: color var(--dur) var(--ease); }
a:hover { color: var(--c-accent); }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
::selection { background: rgba(var(--brand-rgb), 0.3); color: #fff; }

/* Scrollbar */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(var(--brand-rgb), 0.25); border-radius: 10px; }

/* ===== Animations ===== */
@keyframes fadeUp { from { opacity:0; transform:translateY(40px); } to { opacity:1; transform:translateY(0); } }
@keyframes float { 0%,100% { transform:translateY(0); } 50% { transform:translateY(-14px); } }
@keyframes pulse { 0%,100% { opacity:1; } 50% { opacity:0.4; } }
@keyframes spin { to { transform:rotate(360deg); } }
@keyframes shimmer { 0% { background-position:200% center; } 100% { background-position:-200% center; } }
@keyframes orbit { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@keyframes gradMove { 0%{background-position:0% 50%}50%{background-position:100% 50%}100%{background-position:0% 50%} }

/* ===== Container ===== */
.container { max-width: 1240px; margin: 0 auto; padding: 0 32px; position: relative; z-index: 1; }

/* ===== Nav ===== */
.navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 999;
    padding: 0 40px; height: 64px;
    display: flex; align-items: center;
    background: var(--nav-bg);
    backdrop-filter: blur(40px) saturate(180%);
    -webkit-backdrop-filter: blur(40px) saturate(180%);
    border-bottom: 1px solid var(--nav-border);
    transition: all var(--dur) var(--ease);
}
.navbar.scrolled { background: var(--nav-bg-scrolled); border-bottom-color: var(--b-subtle); box-shadow: var(--s-card); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; width: 100%; max-width: 1240px; margin: 0 auto; }
.nav-brand { font-size: 19px; font-weight: 800; color: var(--t-primary); display: flex; align-items: center; gap: 10px; letter-spacing: -0.03em; }
.nav-brand span { font-size: 22px; }
.nav-links { display: flex; gap: 36px; align-items: center; }
.nav-links a { color: var(--t-secondary); font-size: 14px; font-weight: 500; position: relative; transition: color 0.3s; }
.nav-links a:hover { color: var(--t-primary); }
.nav-links a::after { content:''; position:absolute; bottom:-3px; left:0; width:0; height:2px; background:var(--g-brand); border-radius:1px; transition:width 0.3s var(--ease); }
.nav-links a:hover::after { width: 100%; }
.nav-auth { display: flex; align-items: center; gap: 12px; }

/* ===== Theme Toggle ===== */
.theme-toggle {
    width: 36px; height: 36px; border-radius: 50%;
    background: rgba(var(--brand-rgb), 0.06); border: 1px solid var(--b-subtle);
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; transition: all 0.3s var(--ease);
    font-size: 16px; line-height: 1; color: var(--t-secondary);
    position: relative; overflow: hidden; flex-shrink: 0;
}
.theme-toggle:hover { background: rgba(var(--brand-rgb), 0.15); border-color: var(--b-medium); color: var(--t-primary); transform: scale(1.08); }
.theme-toggle .icon-sun, .theme-toggle .icon-moon { transition: all 0.4s var(--ease); position: absolute; }
[data-theme="dark"] .theme-toggle .icon-sun,
:root:not([data-theme="light"]) .theme-toggle .icon-sun { opacity: 1; transform: rotate(0deg) scale(1); }
[data-theme="dark"] .theme-toggle .icon-moon,
:root:not([data-theme="light"]) .theme-toggle .icon-moon { opacity: 0; transform: rotate(90deg) scale(0); }
[data-theme="light"] .theme-toggle .icon-sun { opacity: 0; transform: rotate(-90deg) scale(0); }
[data-theme="light"] .theme-toggle .icon-moon { opacity: 1; transform: rotate(0deg) scale(1); }

/* ===== Buttons ===== */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    font-family: var(--font); font-size: 14px; font-weight: 600;
    padding: 10px 24px; border-radius: var(--r-full);
    border: none; cursor: pointer; transition: all 0.3s var(--ease);
    text-decoration: none; white-space: nowrap; position: relative; overflow: hidden;
}
.btn:active { transform: scale(0.96); }

.btn-primary { background: var(--c-brand); color: #fff; box-shadow: 0 4px 20px rgba(var(--brand-rgb), 0.35); }
.btn-primary:hover { background: var(--c-brand-light); color: #fff; box-shadow: 0 6px 30px rgba(var(--brand-rgb), 0.5); transform: translateY(-1px); }

.btn-ghost { background: rgba(var(--brand-rgb), 0.06); color: var(--t-primary); border: 1px solid var(--b-medium); backdrop-filter: blur(10px); }
.btn-ghost:hover { background: rgba(var(--brand-rgb), 0.12); border-color: var(--b-strong); }

.btn-cta {
    background: var(--g-cta); background-size: 200% 200%; animation: gradMove 4s ease infinite;
    color: #fff; padding: 16px 40px; font-size: 16px; font-weight: 700;
    box-shadow: 0 6px 30px rgba(var(--brand-rgb), 0.35);
    letter-spacing: -0.01em;
}
.btn-cta:hover { box-shadow: 0 10px 50px rgba(var(--brand-rgb), 0.5); transform: translateY(-2px); color: #fff; }

.btn-secondary { background: rgba(var(--brand-rgb), 0.04); color: var(--t-primary); border: 1px solid var(--b-subtle); }
.btn-secondary:hover { background: rgba(var(--brand-rgb), 0.08); border-color: var(--b-medium); }

.btn-danger { background: rgba(248,113,113,0.1); color: var(--c-red); border: 1px solid rgba(248,113,113,0.15); }
.btn-danger:hover { background: rgba(248,113,113,0.18); }
.btn-success { background: rgba(52,211,153,0.1); color: var(--c-green); border: 1px solid rgba(52,211,153,0.15); }
.btn-success:hover { background: rgba(52,211,153,0.18); }

.btn-sm { padding: 7px 16px; font-size: 13px; }
.btn-lg { padding: 14px 32px; font-size: 16px; }
.btn:disabled { opacity: 0.3; cursor: not-allowed; transform: none; box-shadow: none; }

/* ===== Forms ===== */
.form-group { margin-bottom: 22px; }
.form-group label { display: block; margin-bottom: 8px; font-size: 12px; font-weight: 700; color: var(--t-muted); letter-spacing: 0.08em; text-transform: uppercase; }
.form-control {
    width: 100%; padding: 14px 18px;
    background: var(--form-bg); border: 1px solid var(--b-subtle);
    border-radius: var(--r-sm); color: var(--t-primary); font-size: 15px;
    font-family: var(--font); transition: all 0.3s var(--ease); outline: none;
}
.form-control::placeholder { color: var(--t-muted); }
.form-control:focus { border-color: var(--c-brand); box-shadow: 0 0 0 3px rgba(var(--brand-rgb), 0.12), 0 0 30px rgba(var(--brand-rgb), 0.06); background: var(--form-bg-focus); }
.input-group { display: flex; gap: 10px; }
.input-group .form-control { flex: 1; }

/* ===== Cards ===== */
.card {
    background: var(--bg-card); backdrop-filter: blur(40px) saturate(150%);
    border: 1px solid var(--b-subtle); border-radius: var(--r-lg);
    padding: 28px; transition: all var(--dur) var(--ease); position: relative;
}
.card:hover { border-color: var(--b-medium); box-shadow: var(--s-glow); }

/* ===== Tables ===== */
.table-wrapper { overflow-x: auto; border-radius: var(--r-md); }
table { width: 100%; border-collapse: collapse; }
thead th { padding: 14px 18px; text-align: left; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--t-muted); background: rgba(var(--brand-rgb), 0.03); border-bottom: 1px solid var(--b-subtle); }
tbody td { padding: 14px 18px; font-size: 14px; color: var(--t-secondary); border-bottom: 1px solid var(--b-subtle); }
tbody tr { transition: background 0.2s; }
tbody tr:hover { background: rgba(var(--brand-rgb), 0.04); }
tbody tr:last-child td { border-bottom: none; }

/* ===== Badges ===== */
.badge { display: inline-flex; align-items: center; padding: 4px 12px; border-radius: var(--r-full); font-size: 11px; font-weight: 700; letter-spacing: 0.03em; }
.badge-success { background: rgba(52,211,153,0.1); color: var(--c-green); border: 1px solid rgba(52,211,153,0.2); }
.badge-warning { background: rgba(251,191,36,0.1); color: var(--c-amber); border: 1px solid rgba(251,191,36,0.2); }
.badge-danger { background: rgba(248,113,113,0.1); color: var(--c-red); border: 1px solid rgba(248,113,113,0.2); }
.badge-info { background: rgba(var(--brand-rgb), 0.1); color: var(--c-brand-light); border: 1px solid rgba(var(--brand-rgb), 0.2); }

/* ===== Toast ===== */
.toast-container { position: fixed; top: 20px; right: 20px; z-index: 10000; display: flex; flex-direction: column; gap: 10px; }
.toast { padding: 14px 22px; border-radius: var(--r-sm); font-size: 14px; font-weight: 500; color: var(--t-primary); background: var(--toast-bg); backdrop-filter: blur(30px); border: 1px solid var(--b-subtle); box-shadow: var(--s-card); max-width: 400px; transition: all 0.3s; }
.toast-success { border-left: 3px solid var(--c-green); }
.toast-error { border-left: 3px solid var(--c-red); }
.toast-info { border-left: 3px solid var(--c-brand); }
.toast-warning { border-left: 3px solid var(--c-amber); }

/* ===== Loading ===== */
.loading { display: inline-block; width: 16px; height: 16px; border: 2px solid rgba(var(--brand-rgb), 0.15); border-top-color: var(--c-brand); border-radius: 50%; animation: spin 0.7s linear infinite; }

/* ===== Pagination ===== */
.pagination { display: flex; align-items: center; justify-content: center; gap: 8px; margin-top: 24px; }
.pagination button { padding: 8px 18px; border-radius: var(--r-sm); border: 1px solid var(--b-subtle); background: var(--bg-glass); color: var(--t-secondary); font-size: 13px; font-weight: 500; cursor: pointer; transition: all 0.3s; font-family: var(--font); backdrop-filter: blur(10px); }
.pagination button:hover:not(:disabled) { background: rgba(var(--brand-rgb), 0.1); border-color: var(--b-medium); color: var(--t-primary); }
.pagination button:disabled { opacity: 0.2; cursor: not-allowed; }
.pagination span { color: var(--t-muted); font-size: 13px; }

/* ===== Sections ===== */
.section { padding: 140px 0; position: relative; }
.section-label { font-size: 12px; font-weight: 700; letter-spacing: 0.15em; text-transform: uppercase; text-align: center; color: var(--c-brand); margin-bottom: 16px; }
.section-title { font-size: 52px; font-weight: 800; letter-spacing: -0.04em; text-align: center; margin-bottom: 20px; line-height: 1.1; }
.section-desc { font-size: 18px; color: var(--t-secondary); text-align: center; margin-bottom: 72px; max-width: 640px; margin-left: auto; margin-right: auto; line-height: 1.75; }

/* ===== Gradient Text ===== */
.gradient-text { background: var(--g-text); background-size: 300% auto; -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; animation: shimmer 6s linear infinite; }

/* ===== Helpers ===== */
.text-center { text-align: center; }
.action-btns { display: flex; gap: 6px; }

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .navbar { padding: 0 16px; }
    .nav-links { display: none; }
    .section { padding: 80px 0; }
    .section-title { font-size: 32px; }
    .section-desc { font-size: 15px; }
    .container { padding: 0 16px; }
}

/* ===== Icons (SVG Style) ===== */
.svg-icon {
    width: 1em;
    height: 1em;
    fill: currentColor;
    display: inline-block;
    vertical-align: middle;
}