/* ===== หน้าเริ่มเกม / ล็อกอิน (css/start.css) — ธีมกำลังภายในจีนโบราณ =====
   รูปที่ใช้ (ถ้ายังไม่มีไฟล์ จะใช้ลายสำรองจาก CSS อัตโนมัติ):
     img/bg.jpg        พื้นหลังวังบนยอดเขา
     img/medallion.png เหรียญหยกมังกร (ฝั่งซ้าย)
     img/logo.png      โลโก้ชื่อเกมพู่กันทอง
*/
:root {
  --bg: #0c0908;
  --card: #150f0d;
  --card-edge: #8a6a2f;
  --gold: #e3bd62;
  --gold-soft: #f1d89a;
  --crimson: #b3261e;
  --jade: #3f6b5c;
  --paper: #efe3c8;
  --text: #f1e8d6;
  --muted: #a8998a;
  --err: #ff7b7b;
  --warn: #ffb257;
}

[hidden] { display: none !important; }

#login-screen {
  position: fixed; inset: 0; z-index: 9000;
  display: flex; align-items: center; justify-content: center;
  padding: max(12px, env(safe-area-inset-top)) max(12px, env(safe-area-inset-right))
           max(12px, env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-left));
  box-sizing: border-box;
  background:
    linear-gradient(180deg, rgba(12,9,8,.15) 0%, rgba(12,9,8,.5) 100%),
    url('../img/bg.jpg') center / cover no-repeat,
    radial-gradient(circle at 78% 22%, rgba(179,38,30,.55) 0 9%, rgba(179,38,30,0) 10%),
    radial-gradient(ellipse at 50% 120%, #3a1410 0%, rgba(58,20,16,0) 60%),
    linear-gradient(180deg, #1b1210 0%, #0c0908 100%);
  color: var(--text);
  font-family: 'Mitr', 'Noto Sans Thai', sans-serif;
  transition: opacity .45s ease;
  overflow: hidden;
}
#login-screen.out { opacity: 0; pointer-events: none; }
#login-screen *, #login-screen *::before, #login-screen *::after { box-sizing: border-box; }

/* กลีบดอกไม้ลอยแทนประกายไฟ (JS เดิมสร้าง <i> ให้) */
#embers { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
#embers i {
  position: absolute; top: -14px; bottom: auto;
  border-radius: 0 100% 0 100%;
  background: linear-gradient(135deg, #ffb3b3, #e0344a);
  box-shadow: 0 0 6px rgba(255,190,180,.35);
  opacity: 0; animation: petal linear infinite;
}
@keyframes petal {
  0%   { transform: translate(0, 0) rotate(0deg); opacity: 0; }
  10%  { opacity: .85; }
  50%  { transform: translate(calc(var(--dx, 0px) * .5 + 24px), 55vh) rotate(180deg); }
  100% { transform: translate(var(--dx, 0px), 108vh) rotate(380deg); opacity: 0; }
}

/* การ์ดหลัก: ซ้ายฮีโร่ ขวาฟอร์ม — ขอบทองสองชั้นแบบป้ายโบราณ */
.ls-card {
  position: relative; z-index: 1;
  display: flex; align-items: stretch;
  width: min(760px, 100%); max-height: 100%;
  background: linear-gradient(160deg, rgba(34,18,16,.55) 0%, rgba(12,8,8,.72) 75%);
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
  border: 2px solid var(--card-edge);
  border-radius: 6px;
  box-shadow:
    0 0 0 1px #000,
    0 0 0 5px rgba(12,9,8,.9),
    0 0 0 6px var(--card-edge),
    0 18px 50px rgba(0,0,0,.7),
    inset 0 0 40px rgba(179,38,30,.10);
  overflow: hidden;
}
/* มุมลายเมฆ */
.ls-card::before, .ls-card::after {
  content: ''; position: absolute; width: 22px; height: 22px; z-index: 2; pointer-events: none;
  border: 2px solid var(--gold);
}
.ls-card::before { top: 6px; left: 6px; border-right: 0; border-bottom: 0; }
.ls-card::after  { bottom: 6px; right: 6px; border-left: 0; border-top: 0; }

.ls-hero {
  position: relative; flex: 0 0 36%;
  display: flex; align-items: center; justify-content: center;
  background:
    url('../img/medallion.png') center 46% / auto 88% no-repeat,
    radial-gradient(circle at 50% 50%, rgba(179,38,30,.30) 0%, rgba(26,12,10,0) 65%),
    rgba(10,6,6,.30);
  border-right: 2px solid var(--card-edge);
}
.ls-glow {
  position: absolute; width: 170px; height: 170px; border-radius: 50%;
  background: radial-gradient(circle, rgba(227,189,98,.35) 0%, rgba(227,189,98,0) 70%);
  animation: pulse 3.6s ease-in-out infinite;
}
@keyframes pulse { 0%,100% { transform: scale(.92); opacity: .65; } 50% { transform: scale(1.08); opacity: 1; } }

/* ตราประทับ 武 (ซ่อนไว้ เพราะใช้เหรียญหยกแทน) */
.ls-sprite {
  position: relative; width: 68px; height: 68px;
  display: none; align-items: center; justify-content: center;
  background: var(--crimson);
  border-radius: 6px;
  transform: rotate(-4deg);
  box-shadow: 0 0 0 3px #1a0907, 0 0 0 5px var(--gold), 0 6px 22px rgba(179,38,30,.55);
}
.ls-sprite::after {
  content: '武'; position: static; inset: auto; background: none; border-radius: 0;
  font-family: 'Noto Serif CJK SC', 'Noto Serif SC', 'Source Han Serif SC', 'Songti SC', 'STSong', serif;
  font-size: 42px; font-weight: 900; line-height: 1; color: var(--paper);
  text-shadow: 0 1px 0 rgba(0,0,0,.4);
}

.ls-main {
  flex: 1; min-width: 0; padding: 22px 28px;
  overflow-y: auto; -webkit-overflow-scrolling: touch;
}
.ls-title {
  margin: 0 0 2px -6px; height: 88px; max-width: 100%;
  font-size: 0; line-height: 0; color: transparent; overflow: hidden; text-indent: -9999px;
  background: url('../img/logo.png') left center / contain no-repeat;
  filter: drop-shadow(0 2px 6px rgba(0,0,0,.6));
}
.ls-sub {
  margin: 6px 0 16px; padding-bottom: 10px; font-size: 14px; color: var(--muted);
  border-bottom: 1px solid transparent;
  border-image: linear-gradient(90deg, var(--card-edge), rgba(138,106,47,0)) 1;
}

.ls-view { display: flex; flex-direction: column; gap: 10px; }
.ls-center { text-align: center; color: var(--muted); font-size: 14px; }

/* ตัวโหลด */
.spin {
  width: 34px; height: 34px; margin: 10px auto 4px; border-radius: 50%;
  border: 4px solid rgba(227,189,98,.2); border-top-color: var(--gold);
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ปุ่ม */
.btn {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  width: 100%; min-height: 46px; padding: 10px 16px;
  font-family: inherit; font-size: 16px; font-weight: 500;
  border-radius: 6px; border: 2px solid transparent; cursor: pointer;
  -webkit-tap-highlight-color: transparent; transition: transform .08s ease, filter .15s ease;
}
.btn:active:not(:disabled) { transform: translateY(1px) scale(.99); }
.btn svg { width: 22px; height: 22px; flex: none; }
.btn-google { background: var(--paper); color: #2b2420; border-color: #c9b88f; }
.btn-google.off { opacity: .45; }
.btn-ghost { background: transparent; color: var(--gold-soft); border-color: #7a5f2c; }
.btn-ghost:active { background: rgba(227,189,98,.08); }
.btn-gold {
  background: linear-gradient(180deg, #d4392e 0%, #8f1a14 100%);
  color: var(--paper); border-color: var(--gold); font-weight: 600; font-size: 18px;
  text-shadow: 0 1px 0 rgba(0,0,0,.5);
  box-shadow: 0 3px 0 #4a0d09, 0 6px 16px rgba(179,38,30,.35), inset 0 0 0 1px rgba(255,255,255,.12);
}
.btn:disabled { opacity: .5; cursor: not-allowed; filter: grayscale(.5); }
.btn:focus-visible, #in-name:focus-visible, .ls-links a:focus-visible {
  outline: 3px solid #fff3b0; outline-offset: 2px;
}

/* เส้นคั่น "หรือ" */
.ls-or { display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: 13px; }
.ls-or::before, .ls-or::after { content: ''; flex: 1; height: 1px; background: #4a3a2a; }

/* ข้อความอธิบาย */
.ls-note { margin: 2px 0 0; font-size: 12px; line-height: 1.5; color: var(--muted); }
.ls-note.err { color: var(--err); }

/* การ์ดผู้ใช้ */
.ls-user {
  display: flex; align-items: center; gap: 12px; padding: 8px 10px;
  background: rgba(0,0,0,.35); border: 1px solid #5a4528; border-left: 3px solid var(--crimson);
  border-radius: 4px;
}
.ls-user img { width: 42px; height: 42px; border-radius: 50%; object-fit: cover; background: #2a1c18; flex: none; }
.ls-user > div { min-width: 0; display: flex; flex-direction: column; }
.ls-user b { font-weight: 500; font-size: 15px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ls-user small { font-size: 12px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ช่องกรอกชื่อ */
.ls-label { font-size: 13px; color: var(--gold-soft); }
#in-name {
  width: 100%; min-height: 44px; padding: 8px 12px;
  font-family: inherit; font-size: 16px; color: var(--text);
  background: #0e0a09; border: 2px solid #5a4528; border-radius: 4px;
}
#in-name::placeholder { color: #7d6d60; }
#in-name:focus { border-color: var(--gold); }

/* สถานะคลาวด์ */
.ls-cloud { margin: 0; font-size: 12px; color: #9ed8a6; min-height: 1.4em; }
.ls-cloud.warn { color: var(--warn); cursor: pointer; }

.ls-links { text-align: center; }
.ls-links a { font-size: 13px; color: var(--muted); text-decoration: underline; cursor: pointer; }

/* ข้อความเด้งด้านล่าง */
#cloud-toast {
  position: fixed; left: 50%; bottom: max(18px, env(safe-area-inset-bottom)); z-index: 9500;
  transform: translate(-50%, 20px); opacity: 0; pointer-events: none;
  padding: 8px 16px; border-radius: 4px;
  background: rgba(14,10,9,.95); border: 1px solid var(--card-edge); color: var(--gold-soft);
  font-family: 'Mitr', sans-serif; font-size: 13px;
  transition: opacity .25s ease, transform .25s ease;
}
#cloud-toast.show { opacity: 1; transform: translate(-50%, 0); }

/* กล่องถามตอนข้อมูลเซฟไม่ตรงกัน */
.ls-modal {
  position: absolute; inset: 0; z-index: 10; padding: 16px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(8,5,4,.88);
}
.ls-modal .box {
  width: min(420px, 100%); max-height: 100%; overflow-y: auto;
  display: flex; flex-direction: column; gap: 10px; padding: 18px;
  background: var(--card); border: 2px solid var(--gold); border-radius: 6px;
}
.ls-modal .box > div { white-space: pre-line; font-size: 14px; line-height: 1.6; text-align: left; }

/* หน้าจอเตี้ย (มือถือแนวนอน): บีบให้พอดี */
@media (max-height: 460px) {
  .ls-main { padding: 12px 18px; }
  .ls-title { height: 62px; margin-bottom: 0; }
  .ls-sub { display: none; }
  .btn { min-height: 40px; font-size: 15px; padding: 6px 12px; }
  .btn-gold { font-size: 16px; }
  #in-name { min-height: 38px; }
  .ls-view { gap: 6px; }
  .ls-glow { width: 120px; height: 120px; }
  .ls-sprite { width: 52px; height: 52px; }
  .ls-sprite::after { font-size: 32px; }
}
@media (max-width: 560px) {
  .ls-hero { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  #embers i, .ls-glow, .spin { animation: none; }
  #embers { display: none; }
}