/* =============================================
   MBTI 宇宙 - 設計系統
   Art Deco + Cosmic 風格
   ============================================= */

/* ===== CSS 變數定義 ===== */
:root {
    /* 主色調 - 宇宙深空 */
    --color-bg-primary: #0a0a0f;
    --color-bg-secondary: #12121a;
    --color-bg-tertiary: #1a1a25;
    --color-bg-card: rgba(20, 20, 30, 0.8);

    /* 強調色 - 霓虹光芒 */
    --color-accent-gold: #ffd700;
    --color-accent-gold-dim: rgba(255, 215, 0, 0.3);
    --color-accent-purple: #a855f7;
    --color-accent-purple-dim: rgba(168, 85, 247, 0.3);
    --color-accent-cyan: #22d3ee;
    --color-accent-cyan-dim: rgba(34, 211, 238, 0.3);
    --color-accent-pink: #ec4899;
    --color-accent-pink-dim: rgba(236, 72, 153, 0.3);
    --color-accent-green: #10b981;
    --color-accent-orange: #f97316;

    /* 文字顏色 */
    --color-text-primary: #ffffff;
    --color-text-secondary: rgba(255, 255, 255, 0.75);
    --color-text-tertiary: rgba(255, 255, 255, 0.5);
    --color-text-muted: rgba(255, 255, 255, 0.35);

    /* 漸層 */
    --gradient-cosmic: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-gold: linear-gradient(135deg, #f7971e 0%, #ffd200 100%);
    --gradient-aurora: linear-gradient(135deg, #00c6ff 0%, #0072ff 50%, #7c3aed 100%);
    --gradient-sunset: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    --gradient-card: linear-gradient(145deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);

    /* 字體 */
    --font-display: 'Playfair Display', 'Noto Serif TC', Georgia, serif;
    --font-body: 'Outfit', 'Noto Sans TC', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* 字體大小 */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;
    --text-7xl: 4.5rem;

    /* 間距 */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    --spacing-24: 6rem;

    /* 圓角 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;

    /* 陰影 */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.6);
    --shadow-glow-gold: 0 0 30px rgba(255, 215, 0, 0.4);
    --shadow-glow-purple: 0 0 30px rgba(168, 85, 247, 0.4);
    --shadow-glow-cyan: 0 0 30px rgba(34, 211, 238, 0.4);

    /* 過渡 */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
    --transition-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

    /* Z-index */
    --z-base: 1;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-modal: 300;
    --z-tooltip: 400;
    --z-top: 500;

    /* 類型顏色 */
    --color-analyst: #a855f7;
    --color-diplomat: #10b981;
    --color-sentinel: #3b82f6;
    --color-explorer: #f59e0b;
}

/* ===== 基礎重設 ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== 選取樣式 ===== */
::selection {
    background: var(--color-accent-purple);
    color: white;
}

/* ===== 捲軸樣式 ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--color-accent-purple-dim);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent-purple);
}

/* ===== 動畫關鍵幀 ===== */

/* 漂浮動畫 */
@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

/* 脈動光暈 */
@keyframes pulse-glow {

    0%,
    100% {
        box-shadow: 0 0 20px var(--color-accent-gold-dim),
            0 0 40px var(--color-accent-gold-dim);
    }

    50% {
        box-shadow: 0 0 30px var(--color-accent-gold),
            0 0 60px var(--color-accent-gold-dim);
    }
}

/* 星星閃爍 */
@keyframes twinkle {

    0%,
    100% {
        opacity: 0.3;
        transform: scale(1);
    }

    50% {
        opacity: 1;
        transform: scale(1.2);
    }
}

/* 旋轉 */
@keyframes spin {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

/* 慢速旋轉 */
@keyframes spin-slow {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

/* 淡入上移 */
@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 淡入縮放 */
@keyframes fade-in-scale {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* 滑入左 */
@keyframes slide-in-left {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 滑入右 */
@keyframes slide-in-right {
    from {
        opacity: 0;
        transform: translateX(50px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 進度條動畫 */
@keyframes progress-shine {
    from {
        left: -100%;
    }

    to {
        left: 200%;
    }
}

/* 環形脈動 */
@keyframes ring-pulse {
    0% {
        transform: scale(1);
        opacity: 0.5;
    }

    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }

    100% {
        transform: scale(1);
        opacity: 0.5;
    }
}

/* 漸層移動 */
@keyframes gradient-shift {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

/* 打字效果 */
@keyframes typing {
    from {
        width: 0;
    }

    to {
        width: 100%;
    }
}

/* 游標閃爍 */
@keyframes blink {

    0%,
    50% {
        border-color: transparent;
    }

    51%,
    100% {
        border-color: var(--color-accent-gold);
    }
}

/* 軌道運行 */
@keyframes orbit {
    from {
        transform: rotate(0deg) translateX(100px) rotate(0deg);
    }

    to {
        transform: rotate(360deg) translateX(100px) rotate(-360deg);
    }
}

/* 慶祝彈跳 */
@keyframes celebrate {

    0%,
    100% {
        transform: scale(1);
    }

    25% {
        transform: scale(1.1) rotate(-5deg);
    }

    50% {
        transform: scale(1.2);
    }

    75% {
        transform: scale(1.1) rotate(5deg);
    }
}

/* 搖晃 */
@keyframes shake {

    0%,
    100% {
        transform: translateX(0);
    }

    25% {
        transform: translateX(-5px);
    }

    75% {
        transform: translateX(5px);
    }
}

/* ===== 輔助類別 ===== */

/* 隱藏 */
.hidden {
    display: none !important;
}

/* 視覺隱藏但可被螢幕閱讀器讀取 */
.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;
}

/* 文字漸層 */
.text-gradient {
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 玻璃擬態 */
.glass {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* 漸層邊框 */
.gradient-border {
    position: relative;
}

.gradient-border::before {
    content: '';
    position: absolute;
    inset: 0;
    padding: 1px;
    background: var(--gradient-aurora);
    border-radius: inherit;
    -webkit-mask:
        linear-gradient(#fff 0 0) content-box,
        linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

/* ===== 響應式斷點 ===== */
/* 
    Mobile: < 768px
    Tablet: 768px - 1024px
    Desktop: > 1024px
*/