:root {
  --bg-color: #d1d1d1;
  --card-bg: #08a29b;
  --text-white: #ffffff;
  --input-bg: rgba(255, 255, 255, 0.5);
  --input-border: rgba(225, 232, 240, 0.6);
  --input-text: #6a7282;
  --toggle-bg: rgba(255, 255, 255, 0.5);
  --toggle-border: rgba(255, 254, 254, 0.4);
  --btn-bg: #f7f9fb;
  --btn-text: #0b837d;
  --knob-bg: #f7f9fb;
  --knob-text: #587a8a;
  --knob-text-inactive: rgba(68, 84, 107, 0.7);
  --font-main: "Pretendard", sans-serif;
  --w: 100%;
  /* --h: 65px; */
  --h: 54px;
  --pad: 4px;
  --knob-w: calc((var(--w) / 2) - (var(--pad) * 2));
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  padding: 0;
  font-family: var(--font-main);
  background-color: transparent;
  overflow: hidden;
}

.login-bg {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  /* 폴백 색(rgb 59,130,151)이 즉시 칠해지고, 경량화한 배경 이미지가 그 위에 로드됨.
     기존 15MB PNG → 35KB JPEG로 교체하여 배경이 늦게 뜨는 현상 제거 */
  background: rgb(59, 130, 151) url('../img/login-bg.jpg') no-repeat center center/cover;
  z-index: -1;
}

.wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  width: 100%;
}

.login-card {
  /* width: 804px;  */
  width: 100%;
  max-width: 600px;
  /* padding: 60px 100px; */
  padding: 50px 40px;
  background-color: var(--card-bg);
  border-radius: 60px;
  box-shadow: 0px 31px 63px -15px rgba(0, 0, 0, 0.25);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  text-align: center;
}

.logo-area { margin-bottom: 10px; }
.penfix-logo {
  width: 240px;
  height: auto;
  object-fit: contain;
  margin-bottom: 20px;
}
.welcome-text {
  font-size: 18px;
  color: var(--text-white);
  margin: 0;
  font-weight: 400;
}

#login-form {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.toggle-wrapper {
  margin-bottom: 20px;
  width: 100%;
  display: flex;
  justify-content: center;
}

.seg-toggle {
  position: relative;
  width: var(--w);
  height: var(--h);
  background-color: var(--toggle-bg);
  border-radius: 20px;
  border: 1px solid var(--toggle-border);
  cursor: pointer;
  align-items: center;
  outline: none;
  display: flex;
}

.seg-label {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 18px;
  font-weight: 500;
  pointer-events: none;
  z-index: 3;
  transition: color 0.2s ease;
  width: 50%;
  text-align: center;
}
.seg-label--left { left: 0; }
.seg-label--right { right: 0; }

.seg-knob {
  position: absolute;
  top: var(--pad);
  left: var(--pad);
  width: var(--knob-w);
  /* height: calc(var(--h) - (var(--pad) * 2)); */
  height: calc(100% - (var(--pad) * 2)); 
  background-color: var(--knob-bg);
  border-radius: 16px;
  transition: left 0.3s cubic-bezier(0.2, 0.9, 0.3, 1);
  z-index: 2;
}

.seg-toggle[aria-pressed="false"] .seg-label--left { color: var(--knob-text); font-weight: 700; }
.seg-toggle[aria-pressed="false"] .seg-label--right { color: var(--knob-text-inactive); }
.seg-toggle[aria-pressed="true"] .seg-knob { left: calc(var(--w) - var(--pad) - var(--knob-w)); }
.seg-toggle[aria-pressed="true"] .seg-label--left { color: var(--knob-text-inactive); }
.seg-toggle[aria-pressed="true"] .seg-label--right { color: var(--knob-text); font-weight: 700; }

.input-group {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 60px; 
}

.field {
  position: relative;
  width: 100%;
  height: var(--h);
  border-radius: 20px;
  background-color: var(--input-bg);
  border: 1.26px solid var(--input-border);
  display: flex;
  align-items: center;
  overflow: hidden;
}

.icon-wrapper {
  /* width: 65px; */
  width: 54px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--input-text); 
}

.field input {
  flex: 1;
  height: 100%;
  border: none;
  background: transparent;
  padding-right: 20px;
  font-size: 17px;
  color: #333;
  outline: none;
}

.field input::placeholder { color: var(--input-text); }
.field:focus-within { background-color: rgba(255, 255, 255, 0.9); }

.actions { width: 100%; }
.btn-primary {
  width: 100%;
  height: var(--h);
  background-color: var(--btn-bg);
  color: var(--btn-text);
  font-size: 18px;
  font-weight: 700;
  border-radius: 20px;
  border: none;
  cursor: pointer;
  box-shadow: 0px 5px 12px rgba(0, 0, 0, 0.15);
  transition: transform 0.1s ease;
}

.btn-primary:active { transform: translateY(2px); }

.error {
  min-height: 24px;
  color: #ffcccc;
  margin-top: 10px;
  font-size: 14px;
}

/* @media (max-width: 850px) {
  .login-card { width: 95%; padding: 40px 30px; }
  .penfix-logo { width: 200px; }
  :root { --h: 56px; }
} */
 @media (max-width: 650px) { 
  .login-card { width: 95%; padding: 40px 25px; border-radius: 40px; }
  .penfix-logo { width: 180px; } 
  :root { --h: 50px; } 
}