/**
 * Pixcap - 无感挑战验证样式
 *
 * 支持暗黑/明亮及 8 种扩展主题，悬浮浮层/内联显示模式
 * CSS 变量可自定义
 *
 * 两种模式共用 data-state 驱动（unverified/verifying/verified/error）
 *
 * @version 2.2.0
 */

/* =================== CSS 变量 =================== */
:root {
    /* 暗黑主题（默认） */
    --pixcap-bg: #1a368b;
    --pixcap-bg-secondary: #16213e;
    --pixcap-input-bg: #0a0a1e;
    --pixcap-border: #383858;
    --pixcap-border-hover: #505070;
    --pixcap-border-focus: #64ffda;
    --pixcap-text: #c8c8d8;
    --pixcap-text-secondary: #8892b0;
    --pixcap-primary: #64ffda;
    --pixcap-primary-dim: rgba(100, 255, 218, 0.15);
    --pixcap-success: #13db68;
    --pixcap-success-bg: rgba(19, 219, 104, 0.15);
    --pixcap-error: #ff5252;
    --pixcap-error-bg: rgba(255, 82, 82, 0.15);
    --pixcap-warning: #ffab40;
    --pixcap-logo-filter: none;
    --pixcap-radius: 6px;
    --pixcap-radius-sm: 4px;
    --pixcap-font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --pixcap-font-mono: 'SF Mono', 'Fira Code', 'Fira Mono', 'Roboto Mono', monospace;
    --pixcap-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
    --pixcap-transition: 0.25s ease;
}

/* 明亮主题 */
.pixcap-theme-light {
    --pixcap-bg: #ffffff;
    --pixcap-bg-secondary: #f8f9fa;
    --pixcap-input-bg: #f0f0f0;
    --pixcap-border: #d0d0d0;
    --pixcap-border-hover: #b0b0b0;
    --pixcap-border-focus: #1a73e8;
    --pixcap-text: #212121;
    --pixcap-text-secondary: #757575;
    --pixcap-primary: #1a73e8;
    --pixcap-primary-dim: rgba(26, 115, 232, 0.1);
    --pixcap-success: #13db68;
    --pixcap-success-bg: rgba(19, 219, 104, 0.1);
    --pixcap-error: #d32f2f;
    --pixcap-error-bg: rgba(211, 47, 47, 0.1);
    --pixcap-warning: #f57c00;
    --pixcap-logo-filter: brightness(0) saturate(100%) invert(30%) sepia(50%) saturate(2000%) hue-rotate(200deg);
    --pixcap-shadow: 0 4px 24px rgba(0, 0, 0, 0.12);
}

/* ---- Default: 纯白底通用明亮 ---- */
.pixcap-theme-default {
    --pixcap-bg: #ffffff;
    --pixcap-bg-secondary: #f5f5f5;
    --pixcap-input-bg: #ebebeb;
    --pixcap-border: #c8c8c8;
    --pixcap-border-hover: #999999;
    --pixcap-border-focus: #5a5a5a;
    --pixcap-text: #333333;
    --pixcap-text-secondary: #777777;
    --pixcap-primary: #5a5a5a;
    --pixcap-primary-dim: rgba(90, 90, 90, 0.1);
    --pixcap-success: #13db68;
    --pixcap-success-bg: rgba(19, 219, 104, 0.1);
    --pixcap-error: #d32f2f;
    --pixcap-error-bg: rgba(211, 47, 47, 0.1);
    --pixcap-warning: #f57c00;
    --pixcap-logo-filter: brightness(0) invert(1) brightness(0.4);
    --pixcap-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

/* ---- Aqua: 深蓝底品牌蓝 ---- */
.pixcap-theme-aqua {
    --pixcap-bg: #1b3a4b;
    --pixcap-bg-secondary: #153040;
    --pixcap-input-bg: #0f2535;
    --pixcap-border: #2a5a72;
    --pixcap-border-hover: #3a7a9a;
    --pixcap-border-focus: #5bc0de;
    --pixcap-text: #e0f0f8;
    --pixcap-text-secondary: #8ab8cc;
    --pixcap-primary: #5bc0de;
    --pixcap-primary-dim: rgba(91, 192, 222, 0.15);
    --pixcap-success: #13db68;
    --pixcap-success-bg: rgba(19, 219, 104, 0.15);
    --pixcap-error: #ff6b6b;
    --pixcap-error-bg: rgba(255, 107, 107, 0.15);
    --pixcap-warning: #ffab40;
    --pixcap-logo-filter: none;
    --pixcap-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

/* ---- Business: 浅灰蓝底商务 ---- */
.pixcap-theme-business {
    --pixcap-bg: #eef1f5;
    --pixcap-bg-secondary: #e2e6ec;
    --pixcap-input-bg: #d8dde5;
    --pixcap-border: #b8c1cc;
    --pixcap-border-hover: #8e99a8;
    --pixcap-border-focus: #3a6ea5;
    --pixcap-text: #2c3e50;
    --pixcap-text-secondary: #6c7a89;
    --pixcap-primary: #3a6ea5;
    --pixcap-primary-dim: rgba(58, 110, 165, 0.1);
    --pixcap-success: #27ae60;
    --pixcap-success-bg: rgba(39, 174, 96, 0.1);
    --pixcap-error: #c0392b;
    --pixcap-error-bg: rgba(192, 57, 43, 0.1);
    --pixcap-warning: #e67e22;
    --pixcap-logo-filter: brightness(0) saturate(100%) invert(35%) sepia(80%) saturate(600%) hue-rotate(185deg);
    --pixcap-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
}

/* ---- Caramel: 米色焦糖底 ---- */
.pixcap-theme-caramel {
    --pixcap-bg: #f5ead6;
    --pixcap-bg-secondary: #efe2ca;
    --pixcap-input-bg: #e8d8be;
    --pixcap-border: #c4a97d;
    --pixcap-border-hover: #a8895a;
    --pixcap-border-focus: #8b6914;
    --pixcap-text: #3e2c1c;
    --pixcap-text-secondary: #7a6352;
    --pixcap-primary: #8b6914;
    --pixcap-primary-dim: rgba(139, 105, 20, 0.1);
    --pixcap-success: #2e7d32;
    --pixcap-success-bg: rgba(46, 125, 50, 0.1);
    --pixcap-error: #bf360c;
    --pixcap-error-bg: rgba(191, 54, 12, 0.1);
    --pixcap-warning: #e65100;
    --pixcap-logo-filter: brightness(0) saturate(100%) invert(30%) sepia(90%) saturate(500%) hue-rotate(10deg);
    --pixcap-shadow: 0 2px 10px rgba(62, 44, 28, 0.1);
}

/* ---- Cupcake: 浅粉底柔和 ---- */
.pixcap-theme-cupcake {
    --pixcap-bg: #fce4ec;
    --pixcap-bg-secondary: #f8bbd0;
    --pixcap-input-bg: #f3a5c0;
    --pixcap-border: #e48aa7;
    --pixcap-border-hover: #d4698a;
    --pixcap-border-focus: #c2185b;
    --pixcap-text: #4a2030;
    --pixcap-text-secondary: #8c5068;
    --pixcap-primary: #c2185b;
    --pixcap-primary-dim: rgba(194, 24, 91, 0.1);
    --pixcap-success: #2e7d32;
    --pixcap-success-bg: rgba(46, 125, 50, 0.1);
    --pixcap-error: #c62828;
    --pixcap-error-bg: rgba(198, 40, 40, 0.1);
    --pixcap-warning: #e65100;
    --pixcap-logo-filter: brightness(0) saturate(100%) invert(20%) sepia(90%) saturate(1500%) hue-rotate(310deg);
    --pixcap-shadow: 0 2px 12px rgba(194, 24, 91, 0.08);
}

/* ---- Cyberpunk: 亮黄底高对比 ---- */
.pixcap-theme-cyberpunk {
    --pixcap-bg: #f5f530;
    --pixcap-bg-secondary: #e8e828;
    --pixcap-input-bg: #ded620;
    --pixcap-border: #1a1a1a;
    --pixcap-border-hover: #333333;
    --pixcap-border-focus: #ff0055;
    --pixcap-text: #0a0a0a;
    --pixcap-text-secondary: #3a3a3a;
    --pixcap-primary: #ff0055;
    --pixcap-primary-dim: rgba(255, 0, 85, 0.1);
    --pixcap-success: #00c853;
    --pixcap-success-bg: rgba(0, 200, 83, 0.15);
    --pixcap-error: #d50000;
    --pixcap-error-bg: rgba(213, 0, 0, 0.1);
    --pixcap-warning: #ff6d00;
    --pixcap-logo-filter: brightness(0) saturate(100%) invert(10%) sepia(90%) saturate(3000%) hue-rotate(320deg);
    --pixcap-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
}

/* ---- Lime: 浅黄绿底清新 ---- */
.pixcap-theme-lime {
    --pixcap-bg: #e8f5e9;
    --pixcap-bg-secondary: #dcedc8;
    --pixcap-input-bg: #c5e1a5;
    --pixcap-border: #8bc34a;
    --pixcap-border-hover: #689f38;
    --pixcap-border-focus: #33691e;
    --pixcap-text: #1b3a12;
    --pixcap-text-secondary: #4a6f3e;
    --pixcap-primary: #33691e;
    --pixcap-primary-dim: rgba(51, 105, 30, 0.1);
    --pixcap-success: #2e7d32;
    --pixcap-success-bg: rgba(46, 125, 50, 0.1);
    --pixcap-error: #c62828;
    --pixcap-error-bg: rgba(198, 40, 40, 0.1);
    --pixcap-warning: #e65100;
    --pixcap-logo-filter: brightness(0) saturate(100%) invert(15%) sepia(80%) saturate(800%) hue-rotate(80deg);
    --pixcap-shadow: 0 2px 10px rgba(46, 125, 50, 0.08);
}

/* ---- Wireframe: 纯白底极简线框 ---- */
.pixcap-theme-wireframe {
    --pixcap-bg: #ffffff;
    --pixcap-bg-secondary: #fafafa;
    --pixcap-input-bg: #f0f0f0;
    --pixcap-border: #dddddd;
    --pixcap-border-hover: #bbbbbb;
    --pixcap-border-focus: #888888;
    --pixcap-text: #555555;
    --pixcap-text-secondary: #999999;
    --pixcap-primary: #888888;
    --pixcap-primary-dim: rgba(136, 136, 136, 0.08);
    --pixcap-success: #13db68;
    --pixcap-success-bg: rgba(19, 219, 104, 0.08);
    --pixcap-error: #e53935;
    --pixcap-error-bg: rgba(229, 57, 53, 0.08);
    --pixcap-warning: #fb8c00;
    --pixcap-logo-filter: brightness(0) invert(1) brightness(0.45);
    --pixcap-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
}

/* =================== Widget 基础 =================== */
.pixcap-widget {
    font-family: var(--pixcap-font);
    box-sizing: border-box;
    user-select: none;
    -webkit-user-select: none;
}

.pixcap-widget *,
.pixcap-widget *::before,
.pixcap-widget *::after {
    box-sizing: border-box;
}

.pixcap-widget label,
form#login .pixcap-widget label,
form#register .pixcap-widget label {
    position: static;
    display: block;
    align-items: initial;
    height: auto;
    min-height: 0;
    margin: 0;
    padding: 0;
    border-radius: 0;
    box-shadow: none;
}

form#login .pixcap-widget label:focus-within,
form#register .pixcap-widget label:focus-within {
    box-shadow: none;
}

/* =================== 共用 Widget 结构（data-state 驱动） =================== */

/* Widget 容器 */
.pixcap-widget[data-state] {
    background: var(--pixcap-bg);
    border: 1px solid var(--pixcap-border);
    border-radius: var(--pixcap-radius);
    color: var(--pixcap-text);
    display: flex;
    flex-direction: column;
    position: relative;
    transition: border-color var(--pixcap-transition), box-shadow var(--pixcap-transition);
}

/* Focus */
.pixcap-widget[data-state]:focus-within {
    border-color: var(--pixcap-border-focus);
    box-shadow: 0 0 0 2px rgba(100, 255, 218, 0.08);
}

/* Hover */
.pixcap-widget[data-state="unverified"]:hover,
.pixcap-widget[data-state="error"]:hover {
    border-color: var(--pixcap-border-hover);
    cursor: pointer;
}

/* Verified: green border + pulse glow */
.pixcap-widget[data-state="verified"] {
    border-color: rgba(19, 219, 104, 0.45);
    cursor: default;
    animation: pc-pulse-border 2.5s ease-in-out infinite;
}

/* ---- Main Row ---- */
.pixcap-main {
    align-items: center;
    display: flex;
    gap: 0.45rem;
    padding: 10px 12px;
    min-height: 48px;
}

/* ---- Checkbox Area (22x22) ---- */
.pixcap-checkbox {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Native checkbox: styled as empty square */
.pixcap-checkbox input[type="checkbox"] {
    width: 22px;
    height: 22px;
    margin: 0;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    border: 2px solid var(--pixcap-border);
    border-radius: var(--pixcap-radius-sm);
    background: var(--pixcap-input-bg);
    transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1), border-color 0.2s ease;
}

.pixcap-checkbox input[type="checkbox"]:hover {
    transform: scale(1.08);
    border-color: var(--pixcap-border-hover);
}

/* ---- Spinner (verifying state) ---- */
.pixcap-spinner {
    position: absolute;
    top: 0;
    left: 0;
    width: 22px;
    height: 22px;
    display: none;
    animation: pc-spin 0.8s infinite linear;
}

.pixcap-spinner svg {
    color: var(--pixcap-primary);
}

/* ---- Checkmark (verified state) ---- */
.pc-checkmark {
    position: absolute;
    top: 0;
    left: 0;
    width: 22px;
    height: 22px;
    display: none;
}

.pc-checkmark .pc-check-bg {
    fill: var(--pixcap-success);
    transform-origin: center;
    animation: pc-bg-burst 0.35s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.pc-checkmark .pc-check-line {
    fill: none;
    stroke: #fff;
    stroke-width: 2.8;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-dasharray: 20;
    stroke-dashoffset: 20;
    animation: pc-check-draw 0.35s ease-out 0.15s forwards;
}

/* ---- 扩散光环（verified 时从 checkbox 向外扩散的涟漪） ---- */
.pc-ripple {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 22px;
    height: 22px;
    margin-left: -11px;
    margin-top: -11px;
    border-radius: var(--pixcap-radius-sm);
    pointer-events: none;
    animation: pc-ripple-out 0.5s ease-out forwards;
}

@keyframes pc-ripple-out {
    0%   { transform: scale(1); opacity: 0.5; background: rgba(19, 219, 104, 0.4); }
    100% { transform: scale(2.8); opacity: 0; background: rgba(19, 219, 104, 0); }
}

/* ========== 三态显隐（CSS 驱动，不用 JS 行内样式） ========== */

/* unverified: 显示 input，隐藏 spinner 和 checkmark */
.pixcap-widget[data-state="unverified"] .pixcap-checkbox input { display: block; }
.pixcap-widget[data-state="unverified"] .pixcap-spinner,
.pixcap-widget[data-state="unverified"] .pc-checkmark { display: none; }

/* verifying: 隐藏 input，显示 spinner，隐藏 checkmark */
.pixcap-widget[data-state="verifying"] .pixcap-checkbox input { display: none; }
.pixcap-widget[data-state="verifying"] .pixcap-spinner { display: block; }
.pixcap-widget[data-state="verifying"] .pc-checkmark { display: none; }

/* verified: 隐藏 input，隐藏 spinner，显示 checkmark */
.pixcap-widget[data-state="verified"] .pixcap-checkbox input { display: none; }
.pixcap-widget[data-state="verified"] .pixcap-spinner { display: none; }
.pixcap-widget[data-state="verified"] .pc-checkmark { display: block; }

/* error: 显示 input，隐藏 spinner 和 checkmark */
.pixcap-widget[data-state="error"] .pixcap-checkbox input { display: block; }
.pixcap-widget[data-state="error"] .pixcap-spinner,
.pixcap-widget[data-state="error"] .pc-checkmark { display: none; }

/* ---- Label ---- */
.pixcap-label {
    flex-grow: 1;
    font-size: 15px;
    line-height: 1.35;
    font-weight: 400;
    cursor: pointer;
    color: var(--pixcap-text);
    transition: color var(--pixcap-transition);
    letter-spacing: 0.2px;
}

.pixcap-widget[data-state="verified"] .pixcap-label {
    color: var(--pixcap-success);
}

.pixcap-widget[data-state="error"] .pixcap-label,
.pixcap-widget[data-state="expired"] .pixcap-label {
    color: var(--pixcap-error);
}

/* ---- Right Brand Area (logo + text) ---- */
.pixcap-brand-area {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    opacity: 0.25;
    transition: opacity var(--pixcap-transition);
    color: var(--pixcap-text-secondary);
    margin-left: auto;
}

.pixcap-brand-area:hover { opacity: 0.55; }

.pixcap-logo { display: block; filter: var(--pixcap-logo-filter, none); }

.pixcap-brand-text {
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    line-height: 1;
}

/* ---- Error Message ---- */
.pixcap-error-msg {
    display: none;
    color: var(--pixcap-error);
    font-size: 12px;
    padding: 4px 12px 10px;
    gap: 5px;
    align-items: center;
}

.pixcap-error-msg svg {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
}

.pixcap-widget[data-state="error"] .pixcap-error-msg,
.pixcap-widget[data-state="expired"] .pixcap-error-msg {
    display: flex;
}

/* =================== 悬浮浮层定位 =================== */
.pixcap-floating-container {
    position: absolute;
    bottom: calc(100% + 10px);
    right: 0;
    z-index: 10000;
    pointer-events: none;
}

.pixcap-floating-container .pixcap-widget {
    pointer-events: auto;
    opacity: 0;
    transform: translateY(-6px);
    transition: opacity 0.25s ease, transform 0.25s ease;
    min-width: 260px;
}

.pixcap-floating-container .pixcap-widget.pixcap-floating-show {
    opacity: 1;
    transform: translateY(0);
}

.pixcap-floating-container .pixcap-widget.pixcap-floating-hide {
    opacity: 0;
    transform: translateY(-6px);
}

/* =================== 动画 =================== */

/* Spinner 旋转 */
@keyframes pc-spin {
    to { transform: rotate(360deg); }
}

/* 绿底扩散弹入 */
@keyframes pc-bg-burst {
    0%   { transform: scale(0.3); opacity: 0; }
    50%  { transform: scale(1.15); opacity: 1; }
    75%  { transform: scale(0.95); }
    100% { transform: scale(1); opacity: 1; }
}

/* 对勾画线 */
@keyframes pc-check-draw {
    to { stroke-dashoffset: 0; }
}

/* 错误抖动 */
@keyframes pc-shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-3px); }
    20%, 40%, 60%, 80% { transform: translateX(3px); }
}

.pixcap-widget.pc-shake {
    animation: pc-shake 0.4s ease-out;
}

/* Verified 边框呼吸光效 */
@keyframes pc-pulse-border {
    0%, 100% { box-shadow: 0 0 0 0 rgba(19, 219, 104, 0); border-color: rgba(19, 219, 104, 0.45); }
    50% { box-shadow: 0 0 8px 2px rgba(19, 219, 104, 0.18); border-color: rgba(19, 219, 104, 0.7); }
}

.pixcap-widget[data-state="verified"] {
    animation: pc-pulse-border 2.5s ease-in-out infinite;
}

/* Checkbox hover 微交互 */
.pixcap-checkbox input[type="checkbox"]:hover {
    transform: scale(1.08);
    border-color: var(--pixcap-border-hover);
    transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1), border-color 0.2s ease;
}

.pixcap-checkbox input[type="checkbox"]:not(:hover) {
    transform: scale(1);
    transition: transform 0.2s ease, border-color 0.2s ease;
}

/* =================== Compact 尺寸变体 =================== */
.pixcap-widget.pixcap-compact .pixcap-main {
    padding: 6px 8px;
    min-height: 36px;
    gap: 0.3rem;
}

.pixcap-widget.pixcap-compact .pixcap-checkbox {
    width: 16px;
    height: 16px;
}

.pixcap-widget.pixcap-compact .pixcap-checkbox input[type="checkbox"] {
    width: 16px;
    height: 16px;
}

.pixcap-widget.pixcap-compact .pixcap-spinner {
    width: 16px;
    height: 16px;
}

.pixcap-widget.pixcap-compact .pc-checkmark {
    width: 16px;
    height: 16px;
}

.pixcap-widget.pixcap-compact .pixcap-label {
    font-size: 12px;
}

.pixcap-widget.pixcap-compact .pixcap-brand-area {
    gap: 1px;
}

.pixcap-widget.pixcap-compact .pixcap-logo {
    width: 16px;
    height: 16px;
}

.pixcap-widget.pixcap-compact .pixcap-brand-text {
    font-size: 7px;
    letter-spacing: 1px;
}

.pixcap-widget.pixcap-compact .pixcap-error-msg {
    font-size: 10px;
    padding: 2px 8px 6px;
}

.pixcap-widget.pixcap-compact .pixcap-error-msg svg {
    width: 12px;
    height: 12px;
}

.pixcap-widget.pixcap-compact .pc-ripple {
    width: 16px;
    height: 16px;
    margin-left: -8px;
    margin-top: -8px;
}

/* =================== 过期倒计时 =================== */
.pixcap-expire-info {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 2px 12px 8px;
    font-size: 11px;
    color: var(--pixcap-text-secondary);
    transition: color 0.3s ease;
}

.pixcap-expire-info:empty {
    display: none;
    padding: 0;
}

.pixcap-expire-info.expiring {
    color: var(--pixcap-warning);
}

.pixcap-expire-info svg {
    width: 12px;
    height: 12px;
    flex-shrink: 0;
}

/* =================== 防滥用冷却提示 =================== */
.pixcap-cooldown-msg {
    display: none;
    align-items: center;
    gap: 4px;
    padding: 4px 12px 8px;
    font-size: 11px;
    color: var(--pixcap-warning);
}

.pixcap-cooldown-msg.show {
    display: flex;
}

/* =================== prefers-reduced-motion =================== */
@media (prefers-reduced-motion: reduce) {
    .pixcap-widget,
    .pixcap-widget *,
    .pixcap-widget *::before,
    .pixcap-widget *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .pixcap-widget[data-state="verified"] {
        animation: none;
        box-shadow: none;
    }
}

/* =================== 响应式 =================== */
@media (max-width: 480px) {
    .pixcap-main {
        padding: 0.55rem;
    }

    .pixcap-floating-container .pixcap-widget {
        min-width: 220px;
    }
}

/* =================== 辅助类 =================== */
.pixcap-hidden {
    display: none !important;
}

.pixcap-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}