/* ============================================
   RuoYi Dark Cyberpunk Login - Single Card
   ============================================ */

/* ---- Base & Background ---- */
html { height: 100%; }

body.signin {
    height: 100vh;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #0a0a0f;
    overflow: hidden;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
    position: relative;
}

/* ---- Animated Space Background ---- */
body.signin::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 50% at 20% 30%, rgba(120, 50, 255, 0.12), transparent),
        radial-gradient(ellipse 60% 40% at 80% 70%, rgba(0, 200, 255, 0.08), transparent),
        radial-gradient(ellipse 50% 60% at 50% 50%, rgba(80, 20, 150, 0.06), transparent);
    z-index: 0;
}

/* ---- Floating Orbs ---- */
body.signin::after {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background:
        radial-gradient(circle at 30% 20%, rgba(0, 230, 250, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 70% 60%, rgba(160, 70, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 50% 80%, rgba(0, 180, 220, 0.04) 0%, transparent 50%),
        radial-gradient(circle at 85% 30%, rgba(130, 50, 220, 0.06) 0%, transparent 40%);
    animation: orbFloat 20s ease-in-out infinite alternate;
    z-index: 0;
}

@keyframes orbFloat {
    0% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(2%, -1%) scale(1.05); }
    50% { transform: translate(-1%, 2%) scale(0.95); }
    75% { transform: translate(1%, 1%) scale(1.02); }
    100% { transform: translate(-2%, -1%) scale(1); }
}

/* ---- Star Particles ---- */
.stars {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
}

.star-layer {
    position: absolute;
    inset: 0;
}

.star-layer::before,
.star-layer::after {
    content: '';
    position: absolute;
    width: 1px;
    height: 1px;
    border-radius: 50%;
    background: white;
    box-shadow:
        20vw 15vh 0 0 rgba(255,255,255,.6),
        45vw 25vh 0 0 rgba(255,255,255,.4),
        70vw 10vh 0 0 rgba(255,255,255,.7),
        85vw 40vh 0 0 rgba(255,255,255,.3),
        10vw 60vh 0 0 rgba(255,255,255,.5),
        30vw 75vh 0 0 rgba(255,255,255,.4),
        55vw 80vh 0 0 rgba(255,255,255,.6),
        75vw 55vh 0 0 rgba(255,255,255,.3),
        90vw 75vh 0 0 rgba(255,255,255,.5),
        15vw 90vh 0 0 rgba(255,255,255,.4),
        40vw 45vh 0 0 rgba(255,255,255,.3),
        65vw 35vh 0 0 rgba(255,255,255,.5),
        50vw 50vh 0 0 rgba(255,255,255,.8),
        25vw 5vh 0 0 rgba(255,255,255,.4),
        80vw 85vh 0 0 rgba(255,255,255,.3);
    animation: twinkle1 4s ease-in-out infinite alternate;
}

.star-layer::after {
    width: 2px;
    height: 2px;
    box-shadow:
        15vw 20vh 0 0 rgba(180,200,255,.8),
        35vw 40vh 0 0 rgba(200,180,255,.6),
        60vw 30vh 0 0 rgba(160,220,255,.7),
        78vw 65vh 0 0 rgba(220,200,255,.5),
        5vw 80vh 0 0 rgba(180,200,255,.6),
        95vw 50vh 0 0 rgba(200,180,255,.4),
        48vw 65vh 0 0 rgba(160,220,255,.7),
        68vw 15vh 0 0 rgba(220,200,255,.6),
        82vw 90vh 0 0 rgba(200,180,255,.5),
        22vw 12vh 0 0 rgba(180,220,255,.7);
    animation: twinkle2 5s ease-in-out infinite alternate;
}

@keyframes twinkle1 {
    0% { opacity: 0.4; }
    50% { opacity: 1; }
    100% { opacity: 0.5; }
}

@keyframes twinkle2 {
    0% { opacity: 0.6; }
    30% { opacity: 0.2; }
    70% { opacity: 1; }
    100% { opacity: 0.4; }
}

/* ---- Main Container (Single centered card) ---- */
.signinpanel {
    width: 420px;
    max-width: 92vw;
    position: relative;
    z-index: 10;
    animation: cardEnter 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes cardEnter {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* ---- Login Form Card ---- */
.signinpanel form {
    background: linear-gradient(135deg, rgba(20, 20, 35, 0.88), rgba(15, 15, 30, 0.92));
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 20px;
    padding: 48px 40px 36px;
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(0, 200, 255, 0.05) inset,
        0 0 80px rgba(100, 50, 255, 0.1);
    position: relative;
    overflow: hidden;
}

/* ---- Top Glow Line ---- */
.signinpanel form::before {
    content: '';
    position: absolute;
    top: 0;
    left: 15%;
    right: 15%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 230, 250, 0.5), rgba(160, 80, 255, 0.5), transparent);
}

/* ---- Form Header ---- */
.signinpanel form h4 {
    margin: 0 0 4px 0;
    font-size: 24px;
    font-weight: 600;
    color: #fff;
    letter-spacing: 2px;
    text-align: center;
}

.signinpanel form p {
    color: rgba(255,255,255,.35);
    font-size: 13px;
    margin: 0 0 28px 0;
    letter-spacing: 1px;
    text-align: center;
}

.signinpanel .no-margins {
    margin: 0 !important;
}

.signinpanel .m-t-md {
    margin-top: 8px !important;
    margin-bottom: 28px !important;
}

/* ---- Input Fields ---- */
.signinpanel .form-control {
    display: block;
    width: 100%;
    margin-top: 16px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px !important;
    height: 50px !important;
    padding: 14px 18px 14px 18px !important;
    color: #fff;
    font-size: 14px;
    transition: all 0.3s ease;
    box-sizing: border-box;
    outline: none;
}

.signinpanel .form-control::placeholder {
    color: rgba(255, 255, 255, 0.25);
}

.signinpanel .form-control:focus {
    background: rgba(0, 200, 255, 0.05);
    border-color: rgba(0, 200, 255, 0.5);
    box-shadow:
        0 0 0 3px rgba(0, 200, 255, 0.08),
        0 0 24px rgba(0, 200, 255, 0.12);
}

/* ---- Input Icons ---- */
.signinpanel .uname,
.signinpanel .pword,
.signinpanel .code {
    padding-right: 46px !important;
    background-position: right 14px center !important;
    background-repeat: no-repeat !important;
    background-size: 20px 20px !important;
}

.signinpanel .uname {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='rgba(255,255,255,0.3)' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 21v-2a4 4 0 0 0-4-4H8a4 4 0 0 0-4 4v2'%3E%3C/path%3E%3Ccircle cx='12' cy='7' r='4'%3E%3C/circle%3E%3C/svg%3E") !important;
}

.signinpanel .pword {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='rgba(255,255,255,0.3)' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='11' width='18' height='11' rx='2' ry='2'%3E%3C/rect%3E%3Cpath d='M7 11V7a5 5 0 0 1 10 0v4'%3E%3C/path%3E%3C/svg%3E") !important;
}

.signinpanel .code {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='rgba(255,255,255,0.3)' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='3' width='7' height='7'%3E%3C/rect%3E%3Crect x='14' y='3' width='7' height='7'%3E%3C/rect%3E%3Crect x='14' y='14' width='7' height='7'%3E%3C/rect%3E%3Crect x='3' y='14' width='7' height='7'%3E%3C/rect%3E%3C/svg%3E") !important;
}

/* ---- Captcha ---- */
.signinpanel .imgcode {
    width: 100%;
    height: 50px;
    border-radius: 12px;
    cursor: pointer;
    border: 1px solid rgba(255,255,255,.1);
    object-fit: cover;
    transition: all 0.3s ease;
}

.signinpanel .imgcode:hover {
    border-color: rgba(0, 200, 255, 0.4);
    box-shadow: 0 0 16px rgba(0, 200, 255, 0.12);
}

/* ---- Remember Me ---- */
.signinpanel .checkbox-custom {
    margin-top: 20px;
    margin-bottom: 4px;
}

.signinpanel .checkbox-custom label {
    color: rgba(255, 255, 255, 0.45);
    font-size: 13px;
    transition: color 0.2s;
}

.signinpanel .checkbox-custom input[type="checkbox"]:checked + label {
    color: rgba(0, 200, 255, 0.85);
}

/* ---- Login Button ---- */
.signinpanel .btn {
    margin-top: 24px;
    width: 100%;
    height: 50px;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 3px;
    cursor: pointer;
    color: #fff;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    box-shadow: 0 4px 24px rgba(102, 126, 234, 0.35);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.signinpanel .btn:hover {
    box-shadow: 0 6px 32px rgba(102, 126, 234, 0.55), 0 0 48px rgba(0, 200, 255, 0.15);
    transform: translateY(-2px);
}

.signinpanel .btn-success {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
}

/* ---- Error State ---- */
.signinpanel .has-error .form-control {
    border-color: rgba(255, 80, 80, 0.5);
    box-shadow: 0 0 0 3px rgba(255, 80, 80, 0.08);
}

.signinpanel label.error {
    color: rgba(255, 100, 100, 0.85);
    font-size: 12px;
    margin-top: 6px;
    padding-left: 4px;
}

/* ---- Row (for captcha) ---- */
.signinpanel .row {
    display: flex;
    align-items: center;
    gap: 12px;
}

.signinpanel .row .col-xs-6 {
    flex: 1;
    min-height: 1px;
    padding-right: 8px;
    padding-left: 8px;
    float: left;
    width: 50%;
}

.signinpanel .m-t { margin-top: 15px; }

/* ---- Responsive ---- */
@media screen and (max-width: 480px) {
    .signinpanel {
        width: 94vw;
    }

    .signinpanel form {
        padding: 36px 24px 28px;
        border-radius: 16px;
    }

    .signinpanel .form-control {
        height: 46px !important;
    }

    .signinpanel .btn {
        height: 46px;
        font-size: 15px;
    }
}