*{
  box-sizing:border-box;
}

html,
body{
  margin:0;
  min-height:100%;
  font-family:
    system-ui,
    -apple-system,
    "Segoe UI",
    "Noto Sans",
    Tahoma,
    Arial,
    sans-serif;
}

html{
  background:#e4b35f;
}

body{
  min-height:100dvh;
  color:#3e2a15;

  background-color:#e4b35f;

  background-image:
    radial-gradient(
      circle at 50% 28%,
      rgba(255,245,193,.10),
      rgba(255,245,193,0) 38%
    ),
    linear-gradient(
      180deg,
      rgba(255,241,198,.03),
      rgba(74,35,10,.05) 78%,
      rgba(45,21,8,.10)
    ),
    url("./assets/back.png");

  background-position:
    center,
    center,
    center;

  background-repeat:
    no-repeat,
    no-repeat,
    no-repeat;

  background-size:
    cover,
    cover,
    cover;

  overflow-x:hidden;
}

/* Toàn bộ khu vực đăng nhập */
.login-screen{
  min-height:100dvh;

  display:flex;
  flex-direction:column;

  align-items:center;
  justify-content:center;

  gap:0;

  padding:
    20px
    max(22px,env(safe-area-inset-right))
    28px
    max(22px,env(safe-area-inset-left));

  /* Dịch toàn bộ cụm lên trên */
  transform:translateY(-55px);
}

/* Khu vực logo */
.title-area{
  width:min(96vw,1300px);
  min-width:340px;

  display:flex;
  justify-content:center;
  align-items:center;

  position:relative;
  z-index:2;

  /* Đưa logo lên thêm */
  transform:translateY(-70px);

  filter:
    drop-shadow(0 10px 18px rgba(91,38,7,.18))
    drop-shadow(0 3px 4px rgba(255,220,145,.14));
}

.title-area img{
  display:block;

  width:100%;
  height:auto;

  max-height:52dvh;

  object-fit:contain;
  object-position:center;

  user-select:none;
  -webkit-user-drag:none;
}

/* Khung đăng nhập */
.login-card{
  width:min(100%,470px);

  padding:
    clamp(24px,3vw,34px);

  position:relative;
  z-index:3;

  /* Dịch form lên gần logo */
  transform:translateY(-155px);

  border:
    1px solid rgba(255,235,187,.62);

  border-radius:24px;

  background:
    linear-gradient(
      180deg,
      rgba(112,68,34,.68),
      rgba(61,35,18,.76)
    );

  box-shadow:
    0 18px 48px rgba(67,32,8,.17),
    inset 0 1px 0 rgba(255,245,217,.28);

  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
}

/* Form */
#playerForm{
  width:100%;
}

/* Nhãn */
label{
  display:block;

  margin:
    0
    0
    10px;

  color:#fff4dd;

  font-size:14px;
  font-weight:750;

  text-shadow:
    0 1px 2px rgba(43,21,8,.35);
}

/* Ô nhập */
input{
  display:block;

  width:100%;
  height:56px;

  margin:
    0
    0
    18px;

  padding:
    0
    16px;

  border:
    1px solid rgba(255,225,166,.55);

  border-radius:14px;

  outline:none;

  background:
    rgba(255,249,235,.17);

  color:#fffaf0;

  font:
    600
    16px
    inherit;

  caret-color:#ffe29a;

  transition:
    border-color .18s ease,
    box-shadow .18s ease,
    background .18s ease;
}

input::placeholder{
  color:rgba(255,244,220,.52);
}

input:hover{
  background:
    rgba(255,249,235,.21);
}

input:focus{
  border-color:#ffe39c;

  background:
    rgba(255,249,235,.24);

  box-shadow:
    0
    0
    0
    4px
    rgba(255,220,140,.18);
}

/* Nút vào phòng */
.primary{
  width:100%;
  min-height:56px;

  margin-top:6px;

  border:
    1px solid rgba(255,239,193,.98);

  border-radius:14px;

  background:
    linear-gradient(
      180deg,
      #f6dc91,
      #e7bf62
    );

  color:#3c2914;

  font:
    800
    17px
    inherit;

  cursor:pointer;

  box-shadow:
    0
    10px
    22px
    rgba(120,77,19,.18),
    inset
    0
    1px
    0
    rgba(255,255,255,.32);

  transition:
    transform .08s ease,
    filter .16s ease,
    box-shadow .16s ease;
}

.primary:hover{
  filter:brightness(1.05);

  box-shadow:
    0
    12px
    26px
    rgba(120,77,19,.22),
    inset
    0
    1px
    0
    rgba(255,255,255,.36);
}

.primary:active{
  transform:translateY(1px);
}

.primary:disabled{
  opacity:.62;
  cursor:wait;
}

/* Thông báo lỗi */
.message{
  min-height:22px;

  margin:
    14px
    0
    0;

  color:#ffe1d6;

  font-size:14px;
  font-weight:650;

  text-align:center;

  text-shadow:
    0
    1px
    2px
    rgba(43,21,8,.28);
}

.message:empty{
  min-height:0;
  margin-top:0;
}

.message.good{
  color:#dff9e5;
}

/* Màn hình điện thoại */
@media(max-width:820px){

  body{
    background-position:center;
    background-size:cover;
  }

  .login-screen{
    gap:0;

    padding:
      max(16px,env(safe-area-inset-top))
      max(16px,env(safe-area-inset-right))
      max(18px,env(safe-area-inset-bottom))
      max(16px,env(safe-area-inset-left));

    transform:translateY(-20px);
  }

  .title-area{
    width:min(118vw,850px);
    min-width:0;

    transform:translateY(-26px);
  }

  .title-area img{
    max-height:42dvh;
  }

  .login-card{
    width:min(94%,520px);

    padding:22px;

    border-radius:20px;

    transform:translateY(-78px);
  }

  input{
    height:54px;
    margin-bottom:14px;
  }

  .primary{
    min-height:54px;
  }
}

/* Điện thoại xoay ngang hoặc màn hình thấp */
@media(max-height:650px) and (orientation:landscape){

  .login-screen{
    gap:0;

    padding:
      10px
      24px
      14px;

    transform:translateY(-5px);
  }

  .title-area{
    width:min(70vw,760px);

    transform:translateY(-18px);
  }

  .title-area img{
    max-height:40dvh;
  }

  .login-card{
    width:min(100%,430px);

    padding:
      16px
      20px;

    transform:translateY(-72px);
  }

  label{
    margin-bottom:6px;
    font-size:13px;
  }

  input{
    height:44px;

    margin-bottom:9px;

    border-radius:11px;
  }

  .primary{
    min-height:46px;

    margin-top:3px;

    border-radius:11px;
  }
}

/* Màn hình rất nhỏ */
@media(max-width:420px){

  .login-screen{
    transform:translateY(-8px);
  }

  .title-area{
    width:122vw;

    transform:translateY(-12px);
  }

  .title-area img{
    max-height:34dvh;
  }

  .login-card{
    width:100%;

    padding:
      20px
      18px;

    transform:translateY(-52px);
  }
}