/* =========================================
   auth/login.css — 멤버 로그인 페이지
   (auth/login.php 에서 사용)
========================================= */

:root {
    --bg:           #f2f0f8;
    --bg-card:      #ffffff;
    --border:       #e4dff4;
    --border-focus: #9575cd;
    --text-1:       #1a1728;
    --text-2:       #5a5270;
    --text-3:       #9e96b8;
    --accent:       #7e57c2;
    --accent-lt:    #ede7f6;
    --error-bg:     #fdf2f2;
    --error-border: #f5c2c2;
    --error-text:   #c0392b;
    --shadow:       0 2px 12px rgba(100,80,150,0.08);
    --shadow-lg:    0 24px 64px rgba(100,80,150,0.18);
}
[data-theme="dark"] {
    --bg:           #0d0d10;
    --bg-card:      #141420;
    --border:       rgba(200,205,214,0.12);
    --border-focus: #b39ddb;
    --text-1:       #ffffff;
    --text-2:       #c8cdd6;
    --text-3:       #7a8090;
    --accent:       #b39ddb;
    --accent-lt:    rgba(179,157,219,0.10);
    --error-bg:     rgba(220,38,38,0.08);
    --error-border: rgba(220,38,38,0.25);
    --error-text:   #f87171;
    --shadow:       0 2px 12px rgba(0,0,0,0.35);
    --shadow-lg:    0 24px 64px rgba(0,0,0,0.55);
}

*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }

body {
    font-family: 'DM Sans', -apple-system, sans-serif;
    background: var(--bg);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    transition: background .3s;
    position: relative;
    overflow: hidden;
}

/* 배경 글로우 */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse 70% 55% at 15% 10%,  rgba(179,157,219,0.14) 0%, transparent 55%),
        radial-gradient(ellipse 60% 45% at 85% 90%, rgba(126,87,194,0.10) 0%, transparent 55%);
    pointer-events: none;
}
[data-theme="dark"] body::before {
    background:
        radial-gradient(ellipse 70% 55% at 15% 10%,  rgba(179,157,219,0.07) 0%, transparent 55%),
        radial-gradient(ellipse 60% 45% at 85% 90%, rgba(126,87,194,0.06) 0%, transparent 55%);
}

/* 테마 토글 */
.theme-btn {
    position: fixed;
    top: 20px; right: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 100px;
    padding: 7px 14px;
    font-size: 0.78rem;
    color: var(--text-3);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all .2s;
    z-index: 10;
    font-family: 'DM Sans', sans-serif;
}
.theme-btn:hover { border-color: var(--border-focus); color: var(--accent); }

/* 카드 */
.card {
    position: relative;
    z-index: 1;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 48px 44px 40px;
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow-lg);
    animation: cardUp .45s cubic-bezier(.22,1,.36,1) both;
    transition: background .3s, border-color .3s;
}
@keyframes cardUp {
    from { opacity:0; transform:translateY(20px); }
    to   { opacity:1; transform:translateY(0); }
}

/* 로고 */
.logo {
    text-align: center;
    margin-bottom: 36px;
}
.logo-mark {
    font-family: 'Cormorant Garamond', serif;
    font-size: 2.6rem;
    font-weight: 300;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    background: linear-gradient(135deg, #c8cdd6 0%, #c9b8e8 50%, #c8cdd6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    line-height: 1.1;
    margin-bottom: 4px;
}
/* 라이트에서 로고 더 진하게 */
[data-theme="light"] .logo-mark {
    background: linear-gradient(135deg, #5e35b1 0%, #9575cd 50%, #7e57c2 100%);
    -webkit-background-clip: text;
    background-clip: text;
}
.logo-sub {
    font-size: 0.68rem;
    letter-spacing: 0.26em;
    text-transform: uppercase;
    color: var(--text-3);
}
.logo-divider {
    width: 40px; height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    margin: 16px auto 0;
}

/* 필드 */
.field { margin-bottom: 16px; }
.field label {
    display: block;
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--text-3);
    margin-bottom: 7px;
}
.field input {
    width: 100%;
    padding: 13px 16px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 0.95rem;
    font-family: 'DM Sans', sans-serif;
    color: var(--text-1);
    outline: none;
    transition: border-color .2s, box-shadow .2s, background .3s;
}
.field input::placeholder { color: var(--text-3); }
.field input:focus {
    border-color: var(--border-focus);
    background: var(--bg-card);
    box-shadow: 0 0 0 3px rgba(149,117,205,0.12);
}
.field input.err {
    border-color: var(--error-text);
    box-shadow: 0 0 0 3px rgba(220,38,38,0.08);
}

/* 에러 메시지 */
.error-box {
    display: none;
    background: var(--error-bg);
    border: 1px solid var(--error-border);
    color: var(--error-text);
    border-radius: 9px;
    padding: 10px 14px;
    font-size: 0.83rem;
    margin-bottom: 14px;
    text-align: center;
    letter-spacing: 0.02em;
}
.error-box.show { display: block; }

/* 로그인 버튼 */
.login-btn {
    width: 100%;
    margin-top: 6px;
    padding: 14px;
    background: var(--accent);
    border: none;
    border-radius: 10px;
    color: white;
    font-size: 0.9rem;
    font-weight: 600;
    font-family: 'DM Sans', sans-serif;
    letter-spacing: 0.06em;
    cursor: pointer;
    transition: opacity .2s, transform .2s, box-shadow .2s;
}
.login-btn:hover:not(:disabled) {
    opacity: .9;
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(126,87,194,0.3);
}
.login-btn:active:not(:disabled) { transform: translateY(0); }
.login-btn:disabled { opacity: .5; cursor: not-allowed; }

/* 힌트 */
.hint {
    text-align: center;
    margin-top: 20px;
    font-size: 0.76rem;
    color: var(--text-3);
    letter-spacing: 0.04em;
}

/* 관리자 링크 */
.admin-link {
    text-align: center;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}
.admin-link a {
    font-size: 0.75rem;
    color: var(--accent);
    text-decoration: none;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    font-weight: 600;
    transition: opacity .2s;
}
.admin-link a:hover { opacity: 0.7; }

/* 쉐이크 */
@keyframes shake {
    0%,100% { transform: translateX(0); }
    20%,60%  { transform: translateX(-5px); }
    40%,80%  { transform: translateX(5px); }
}
.shake { animation: shake .38s ease; }