/* 今晚三件 · 门厅
 * 一间没挂招牌的夜房间。底是墙，门是门，不是卡片。
 */

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

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
}

html { color-scheme: dark; }

body {
  min-height: 100%;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.skip {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--bg);
  color: var(--text);
  padding: var(--space-3) var(--space-4);
  z-index: 20;
}
.skip:focus {
  left: var(--pad-compact);
  top: var(--space-3);
}

/* —— 房间 —— */
.room {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  padding:
    var(--space-6)
    var(--pad-compact)
    var(--space-5);
}

.mast {
  flex: 0 0 auto;
  max-width: 36rem;
  margin: 0 0 var(--space-6);
}

.mast h1 {
  margin: 0;
  font-size: 20px;
  font-weight: 500;
  letter-spacing: 0.02em;
  line-height: 1.3;
  color: var(--text);
}

.mast p {
  margin: var(--space-3) 0 0;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.6;
  color: var(--text-dim-safe);
  max-width: 28em;
}

/* —— 三扇门 —— */
.doors {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  gap: 0;
  min-height: 0;
}

.door {
  position: relative;
  flex: 1 1 auto;
  min-height: 240px;
  min-height: 70vh;
  min-height: 70dvh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-5) var(--space-4) var(--space-5) var(--space-7);
  text-decoration: none;
  color: var(--text);
  /* 门框：直角，墙的缺口，不是卡片 */
  border: 0;
  background: transparent;
  isolation: isolate;
  outline: none;
}

.door + .door {
  /* 门与门之间是墙，不是间距 */
  border-top: 1px solid #1C1A17;
}

/* 光缝：默认在左侧竖开 */
.door .leak {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 8px;
  background: var(--leak);
  pointer-events: none;
  z-index: 1;
  transition: width var(--t-ui) var(--ease-out),
              box-shadow var(--t-ui) var(--ease-out),
              opacity var(--t-ui) var(--ease-out);
  box-shadow: 0 0 0 0 transparent;
}

.door-gold  { --leak: var(--leak-gold); }
.door-ice   { --leak: var(--leak-ice); }
.door-tungsten { --leak: var(--leak-tungsten); }

/* 门里几乎是黑的，只有缝在漏光 */
.door::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--leak) 14%, transparent) 0,
                           transparent 42%),
    #070605;
  z-index: 0;
  opacity: 1;
}

.door .name,
.door .line {
  position: relative;
  z-index: 2;
  opacity: 0.92;
  transform: none;
  transition: opacity var(--t-ui) var(--ease-out);
}

.door .name {
  display: block;
  font-size: 28px;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.04em;
  color: var(--text);
}

.door .line {
  display: block;
  margin-top: var(--space-2);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.55;
  color: var(--text-dim-safe);
  max-width: 18em;
}

.door .credit {
  display: block;
  margin-top: var(--space-2);
  font-size: 13px;
  line-height: 1.45;
  letter-spacing: 0.02em;
  color: var(--text-dim-safe);
  opacity: 0.8;
}

/* 悬停 / 焦点：光缝加宽，字更清楚 */
.door:hover .leak,
.door:focus-visible .leak {
  width: 32px;
  box-shadow: 8px 0 28px -8px color-mix(in srgb, var(--leak) 55%, transparent);
}

.door:hover .name,
.door:focus-visible .name,
.door:hover .line,
.door:focus-visible .line,
.door:hover .credit,
.door:focus-visible .credit {
  opacity: 1;
}

.door:focus-visible {
  /* 钨/金/冰细线，不要只靠填充 */
  box-shadow: inset 0 0 0 1px var(--leak);
}

/* 慢呼吸，亮度变化不超过 15% */
@media (prefers-reduced-motion: no-preference) {
  .door .leak {
    animation: leak-breathe 10s var(--ease-in-out) infinite;
  }
  @keyframes leak-breathe {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.86; }
  }
  .door:hover .leak,
  .door:focus-visible .leak {
    animation: none;
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .door .leak,
  .door .name,
  .door .line { transition: none; animation: none; }
}

.skill-note {
  flex: 0 0 auto;
  margin-top: var(--space-5);
  max-width: 36rem;
}
.skill-note p {
  margin: 0;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.6;
  color: var(--text-dim-safe);
}
.skill-note strong {
  font-weight: 500;
  color: var(--text);
}

.foot {
  flex: 0 0 auto;
  margin-top: var(--space-4);
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-dim-safe);
}
.foot p { margin: 0; }
.foot p + p { margin-top: 2px; }

/* —— 宽屏：三扇门并列 —— */
@media (min-width: 1200px) {
  .room {
    padding: var(--space-8) var(--pad-wide) var(--space-6);
  }

  .mast {
    margin-bottom: var(--space-7);
  }
  .mast h1 { font-size: 24px; }

  .doors {
    flex-direction: row;
    align-items: stretch;
    /* 门与门之间是墙 */
    gap: 0;
  }

  .door {
    flex: 1 1 0;
    min-height: 0;
    /* 竖向开口，约 3:5 的体量感，由高度撑满剩余视口 */
    justify-content: flex-end;
    padding: var(--space-8) var(--space-6) var(--space-8) var(--space-8);
  }

  .door + .door {
    border-top: 0;
    border-left: 1px solid #1C1A17;
  }

  .skill-note { margin-top: var(--space-6); }
  .door .name { font-size: 32px; }

  /* 默认：名字和短引几乎隐在门口，悬停才从门口淡入 */
  .door .name,
  .door .line,
  .door .credit {
    opacity: 0;
    transition: opacity var(--t-ui) var(--ease-out);
  }
  .door:hover .name,
  .door:focus-visible .name,
  .door:hover .line,
  .door:focus-visible .line,
  .door:hover .credit,
  .door:focus-visible .credit {
    opacity: 1;
  }
}

@media (min-width: 740px) and (max-width: 1199px) {
  .room {
    padding: var(--space-7) var(--pad-regular) var(--space-5);
  }
  .door .name { font-size: 28px; }
  .door { min-height: 240px; }
}