/* ═══════════════════════════════════════
   NexaChain — auth.css
   Login · Register · Forgot Password
   Font: Inter · Mobile-First
═══════════════════════════════════════ */

:root {
  --c-bg:       #0b1120;
  --c-surface:  #111827;
  --c-card:     #1a2236;
  --c-input:    #111827;
  --c-border:   rgba(255,255,255,0.08);
  --c-border-a: rgba(56,189,248,0.4);

  --c-cyan:    #38bdf8;
  --c-purple:  #a78bfa;
  --c-emerald: #34d399;
  --c-orange:  #fb923c;
  --c-red:     #f87171;

  --c-text-1: #f1f5f9;
  --c-text-2: #cbd5e1;
  --c-text-3: #94a3b8;
  --c-text-4: #64748b;

  --radius:    12px;
  --radius-sm: 8px;
  --t:         0.2s ease;
}

[data-theme="light"] {
  --c-bg:       #f1f5f9;
  --c-surface:  #e2e8f0;
  --c-card:     #ffffff;
  --c-input:    #f8fafc;
  --c-border:   rgba(0,0,0,0.09);
  --c-border-a: rgba(56,189,248,0.5);
  --c-text-1:   #0f172a;
  --c-text-2:   #1e293b;
  --c-text-3:   #475569;
  --c-text-4:   #94a3b8;
}

/* ── RESET ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%;-webkit-text-size-adjust:100%}
body{
  font-family:'Inter',system-ui,sans-serif;
  font-size:14px;line-height:1.6;
  background:var(--c-bg);color:var(--c-text-1);
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
}
a{color:inherit;text-decoration:none}
button{font-family:'Inter',sans-serif;cursor:pointer;border:none;background:none}
img{display:block;max-width:100%}
::-webkit-scrollbar{width:4px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--c-border);border-radius:99px}

/* ── TWO-COLUMN LAYOUT ── */
.auth-page{
  display:flex;min-height:100vh;
}

/* Left Decorative Panel */
.auth-left{
  display:none;
  width:420px;flex-shrink:0;
  background:linear-gradient(160deg,#0d1a2e 0%,#0b1526 50%,#0d1a2e 100%);
  border-right:1px solid var(--c-border);
  position:relative;overflow:hidden;
}
.auth-left::before{
  content:'';position:absolute;inset:0;
  background:
    radial-gradient(ellipse at 30% 20%,rgba(56,189,248,0.08) 0%,transparent 55%),
    radial-gradient(ellipse at 70% 80%,rgba(167,139,250,0.08) 0%,transparent 55%);
}
/* Decorative grid dots */
.auth-left::after{
  content:'';position:absolute;inset:0;
  background-image:radial-gradient(circle,rgba(255,255,255,0.04) 1px,transparent 1px);
  background-size:32px 32px;
}
@media(min-width:900px){.auth-left{display:flex;align-items:center;justify-content:center}}
@media(min-width:1100px){.auth-left{width:480px}}

.auth-left-inner{
  position:relative;z-index:1;
  padding:40px 36px;display:flex;flex-direction:column;gap:32px;
  width:100%;
}

.brand-mark{display:flex;align-items:center;gap:12px}
.brand-mark span{font-size:1.3rem;font-weight:800;color:var(--c-text-1);letter-spacing:-.02em}

.brand-icon-lg{
  width:44px;height:44px;border-radius:12px;
  background:linear-gradient(135deg,var(--c-cyan),var(--c-purple));
  display:flex;align-items:center;justify-content:center;
  font-size:20px;color:#000;flex-shrink:0;
}
.brand-icon-lg.sm{width:36px;height:36px;font-size:16px;border-radius:10px}

.auth-hero-text h1{
  font-size:clamp(1.6rem,3vw,2rem);
  font-weight:800;color:var(--c-text-1);
  line-height:1.2;letter-spacing:-.03em;margin-bottom:12px;
}
.grad-text{
  background:linear-gradient(135deg,var(--c-cyan),var(--c-purple));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.auth-hero-text p{font-size:14px;color:var(--c-text-3);line-height:1.6}

/* Stats */
.auth-stats{display:flex;gap:24px}
.as-item span{display:block;font-size:1.4rem;font-weight:800;color:var(--c-cyan);letter-spacing:-.02em}
.as-item label{font-size:11px;color:var(--c-text-3);margin-top:2px}

/* Testimonial */
.auth-testimonial{
  background:rgba(255,255,255,0.03);border:1px solid var(--c-border);
  border-radius:var(--radius);padding:18px;display:flex;gap:14px;align-items:flex-start;
}
.at-avatar img{width:44px;height:44px;border-radius:50%;border:2px solid var(--c-border-a);flex-shrink:0}
.at-body p{font-size:13px;color:var(--c-text-2);font-style:italic;line-height:1.55;margin-bottom:8px}
.at-body strong{display:block;font-size:13px;font-weight:600;color:var(--c-text-1)}
.at-body span{font-size:11px;color:var(--c-cyan)}

/* How It Works */
.how-it-works{display:flex;flex-direction:column;gap:14px}
.hiw-item{display:flex;align-items:flex-start;gap:14px}
.hiw-num{
  width:28px;height:28px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,var(--c-cyan),var(--c-purple));
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;color:#000;margin-top:1px;
}
.hiw-item strong{display:block;font-size:13px;font-weight:600;color:var(--c-text-1)}
.hiw-item span{font-size:12px;color:var(--c-text-3)}

/* Security Features */
.security-features{display:flex;flex-direction:column;gap:16px}
.sf-item{display:flex;align-items:flex-start;gap:14px}
.sf-icon{
  width:36px;height:36px;border-radius:10px;flex-shrink:0;
  background:rgba(56,189,248,0.1);border:1px solid rgba(56,189,248,0.15);
  display:flex;align-items:center;justify-content:center;font-size:15px;color:var(--c-cyan);
}
.sf-item strong{display:block;font-size:13px;font-weight:600;color:var(--c-text-1)}
.sf-item span{font-size:12px;color:var(--c-text-3)}

/* ── RIGHT PANEL ── */
.auth-right{
  flex:1;display:flex;flex-direction:column;
  align-items:center;justify-content:space-between;
  padding:24px 16px;min-height:100vh;overflow-y:auto;
}
@media(min-width:640px){.auth-right{padding:32px 24px}}

.auth-form-wrap{
  width:100%;max-width:440px;
  margin:auto;padding:8px 0;
}

/* Mobile Brand */
.mobile-brand{
  display:flex;align-items:center;gap:10px;margin-bottom:28px;
}
.mobile-brand span{font-size:1.1rem;font-weight:800;color:var(--c-text-1)}
@media(min-width:900px){.mobile-brand{display:none}}

.auth-form-header{margin-bottom:24px}
.auth-form-header h2{font-size:clamp(1.3rem,4vw,1.6rem);font-weight:800;color:var(--c-text-1);letter-spacing:-.02em;margin-bottom:4px}
.auth-form-header p{font-size:14px;color:var(--c-text-3)}

/* Social Buttons */
.social-btns{display:flex;flex-direction:column;gap:10px;margin-bottom:20px}
.social-btn{
  width:100%;padding:12px;border:1px solid var(--c-border);
  background:var(--c-card);border-radius:var(--radius-sm);
  color:var(--c-text-2);font-size:14px;font-weight:500;
  display:flex;align-items:center;justify-content:center;gap:10px;
  transition:var(--t);
}
.social-btn:hover{background:var(--c-surface);border-color:var(--c-border-a);color:var(--c-text-1)}
.social-btn .fa-google{color:#ea4335}
.social-btn .fa-facebook{color:#1877f2}

/* Divider */
.auth-divider{
  text-align:center;position:relative;margin:20px 0;
  color:var(--c-text-4);font-size:12px;
}
.auth-divider::before,.auth-divider::after{
  content:'';position:absolute;top:50%;width:calc(50% - 70px);
  height:1px;background:var(--c-border);
}
.auth-divider::before{left:0}
.auth-divider::after{right:0}
.auth-divider span{background:var(--c-bg);padding:0 12px;display:inline-block;position:relative;z-index:1}
@media(min-width:900px){.auth-divider span{background:var(--c-bg)}}

/* ── FORM FIELDS ── */
.field-group{display:flex;flex-direction:column;gap:5px;margin-bottom:16px}
.field-label{font-size:12px;font-weight:600;color:var(--c-text-2)}
.field-label-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:5px}
.field-label-row .field-label{margin-bottom:0}
.req{color:var(--c-red)}
.field-optional{font-weight:400;color:var(--c-text-4);font-size:11px}
.field-hint{font-size:11px;color:var(--c-text-4);margin-top:3px}
.field-error{font-size:11px;color:var(--c-red);display:none;margin-top:3px}
.field-error.show{display:block}

.input-wrap{position:relative;display:flex;align-items:center}
.input-icon{position:absolute;left:12px;color:var(--c-text-4);font-size:13px;pointer-events:none;z-index:1}
.field-input{
  width:100%;background:var(--c-input);border:1px solid var(--c-border);
  border-radius:var(--radius-sm);color:var(--c-text-1);
  padding:12px 14px;font-size:14px;outline:none;
  transition:border-color var(--t),box-shadow var(--t);
  font-family:'Inter',sans-serif;appearance:none;
}
.field-input:focus{border-color:var(--c-border-a);box-shadow:0 0 0 3px rgba(56,189,248,0.1)}
.field-input::placeholder{color:var(--c-text-4)}
.field-input.error{border-color:var(--c-red)}
.field-input.success{border-color:var(--c-emerald)}
.input-wrap .field-input{padding-left:38px}

.eye-btn{position:absolute;right:12px;color:var(--c-text-4);padding:4px;font-size:14px;transition:var(--t)}
.eye-btn:hover{color:var(--c-text-2)}
.input-check{position:absolute;right:12px;color:var(--c-emerald);font-size:16px}

/* Select override */
.field-input[type="date"]{color-scheme:dark}
select.field-input{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='%2394a3b8' d='M7.247 11.14L2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 12px center;background-size:11px;
  padding-right:34px;cursor:pointer;
}

/* Phone Field */
.phone-wrap{display:flex;gap:8px}
.phone-code{width:100px;flex-shrink:0;font-size:13px}
.phone-num{flex:1}

/* Form Row */
.form-row-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:480px){.form-row-2{grid-template-columns:1fr}}

/* Remember Me / Checkboxes */
.remember-row{margin-bottom:20px}
.check-label{
  display:flex;align-items:flex-start;gap:10px;cursor:pointer;
  font-size:13px;color:var(--c-text-2);line-height:1.5;
}
.check-label input[type="checkbox"]{
  width:16px;height:16px;flex-shrink:0;margin-top:2px;
  accent-color:var(--c-cyan);cursor:pointer;border-radius:4px;
}
.check-label a{color:var(--c-cyan)}

/* Forgot Link */
.forgot-link{font-size:12px;color:var(--c-cyan);font-weight:500}
.forgot-link:hover{text-decoration:underline}

/* ── SUBMIT BUTTON ── */
.btn-submit{
  width:100%;padding:13px 20px;
  background:linear-gradient(135deg,var(--c-cyan),#0ea5e9);
  color:#000;border:none;border-radius:var(--radius-sm);
  font-size:15px;font-weight:700;letter-spacing:-.01em;
  display:flex;align-items:center;justify-content:center;gap:8px;
  transition:var(--t);position:relative;overflow:hidden;margin-bottom:16px;
}
.btn-submit::before{
  content:'';position:absolute;inset:0;
  background:rgba(255,255,255,0);transition:background var(--t);
}
.btn-submit:hover::before{background:rgba(255,255,255,0.1)}
.btn-submit:active{transform:scale(.98)}
.btn-submit:disabled{opacity:.6;cursor:not-allowed}
.btn-spinner{display:flex;align-items:center}

/* Back Button */
.btn-back{
  padding:12px 20px;background:var(--c-card);border:1px solid var(--c-border);
  border-radius:var(--radius-sm);color:var(--c-text-2);font-size:14px;font-weight:500;
  display:flex;align-items:center;gap:8px;transition:var(--t);
}
.btn-back:hover{border-color:var(--c-border-a);color:var(--c-text-1)}

/* Step Nav */
.step-nav{display:flex;gap:10px}
.step-nav .btn-submit{flex:1}

/* ── DEMO BOX ── */
.demo-box{
  display:flex;align-items:flex-start;gap:10px;
  background:rgba(56,189,248,0.06);border:1px solid rgba(56,189,248,0.18);
  border-radius:var(--radius-sm);padding:12px 14px;margin-bottom:20px;
  font-size:12px;color:var(--c-text-2);
}
.demo-box i{color:var(--c-cyan);margin-top:2px;flex-shrink:0}
.demo-box strong{display:block;font-size:12px;font-weight:600;color:var(--c-text-1);margin-bottom:2px}
.demo-box span{display:block}
.demo-box code{background:rgba(56,189,248,0.1);padding:1px 5px;border-radius:4px;color:var(--c-cyan);font-size:12px}
.demo-fill-btn{
  margin-left:auto;flex-shrink:0;padding:4px 10px;
  background:rgba(56,189,248,0.12);color:var(--c-cyan);
  border-radius:6px;font-size:12px;font-weight:600;transition:var(--t);
}
.demo-fill-btn:hover{background:rgba(56,189,248,0.2)}
.mt-small{margin-top:12px}

/* Auth Switch */
.auth-switch{text-align:center;font-size:13px;color:var(--c-text-3)}
.auth-switch a{color:var(--c-cyan);font-weight:600}
.auth-switch a:hover{text-decoration:underline}
.inline-link{color:var(--c-cyan)}

/* Auth Footer */
.auth-footer{
  width:100%;max-width:440px;
  display:flex;align-items:center;justify-content:center;gap:16px;
  font-size:12px;color:var(--c-text-4);padding:16px 0 8px;
}
.auth-footer a{color:var(--c-text-4);transition:var(--t)}
.auth-footer a:hover{color:var(--c-text-2)}

/* ── STEP INDICATOR (Register) ── */
.step-indicator{
  display:flex;align-items:center;margin-bottom:28px;
}
.step-item{display:flex;flex-direction:column;align-items:center;gap:5px;flex-shrink:0}
.step-circle{
  width:32px;height:32px;border-radius:50%;
  background:var(--c-surface);border:2px solid var(--c-border);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;color:var(--c-text-4);
  transition:var(--t);
}
.step-item span{font-size:11px;color:var(--c-text-4);font-weight:500}
.step-item.active .step-circle{border-color:var(--c-cyan);background:rgba(56,189,248,0.1);color:var(--c-cyan)}
.step-item.active span{color:var(--c-cyan)}
.step-item.done .step-circle{border-color:var(--c-emerald);background:var(--c-emerald);color:#000}
.step-item.done span{color:var(--c-emerald)}
.step-line{flex:1;height:2px;background:var(--c-border);margin:0 8px;margin-bottom:20px;transition:background var(--t)}
.step-line.done{background:var(--c-emerald)}

/* Reg Steps */
.reg-step{animation:fadeStep .3s ease}
.fp-step{animation:fadeStep .3s ease}
@keyframes fadeStep{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

/* Leg Selector */
.leg-selector{display:flex;gap:8px}
.leg-btn{
  flex:1;padding:11px 8px;border:1px solid var(--c-border);
  background:var(--c-card);border-radius:var(--radius-sm);
  color:var(--c-text-3);font-size:13px;font-weight:500;
  display:flex;align-items:center;justify-content:center;gap:7px;
  transition:var(--t);cursor:pointer;
}
.leg-btn:hover{border-color:var(--c-border-a);color:var(--c-text-1)}
.leg-btn.active{border-color:var(--c-cyan);background:rgba(56,189,248,0.08);color:var(--c-cyan)}

/* ── PASSWORD STRENGTH ── */
.pw-strength-bar{
  height:4px;border-radius:99px;background:var(--c-surface);
  margin-top:8px;overflow:hidden;
}
.pw-strength-fill{height:100%;border-radius:99px;width:0;transition:width .4s ease,background .3s ease}
.pw-strength-label{font-size:11px;font-weight:600;margin-top:4px}
.pw-requirements{display:flex;flex-direction:column;gap:4px;margin-top:10px}
.pw-req{font-size:12px;color:var(--c-text-4);display:flex;align-items:center;gap:7px;transition:color var(--t)}
.pw-req.ok{color:var(--c-emerald)}
.pw-req.ok i{color:var(--c-emerald)}
.pw-req i{color:var(--c-text-4);font-size:12px}

/* ── PIN INPUT ── */
.pin-inputs{display:flex;gap:10px;justify-content:flex-start}
.pin-box{
  width:52px;height:56px;
  background:var(--c-input);border:1px solid var(--c-border);
  border-radius:var(--radius-sm);color:var(--c-text-1);
  text-align:center;font-size:20px;font-weight:700;outline:none;
  transition:var(--t);
}
.pin-box:focus{border-color:var(--c-cyan);box-shadow:0 0 0 3px rgba(56,189,248,0.1)}
@media(max-width:380px){.pin-box{width:44px;height:50px;font-size:18px}}

/* ── OTP INPUT ── */
.otp-inputs{display:flex;gap:8px;justify-content:center;margin-bottom:8px}
.otp-box{
  width:48px;height:56px;
  background:var(--c-input);border:2px solid var(--c-border);
  border-radius:var(--radius-sm);color:var(--c-text-1);
  text-align:center;font-size:22px;font-weight:700;outline:none;
  transition:var(--t);
}
.otp-box:focus{border-color:var(--c-cyan);box-shadow:0 0 0 3px rgba(56,189,248,0.1)}
.otp-box.filled{border-color:rgba(56,189,248,0.4);background:rgba(56,189,248,0.05)}
.text-center{text-align:center}
@media(max-width:380px){.otp-box{width:42px;height:50px;font-size:20px}.otp-inputs{gap:6px}}

/* OTP Timer */
.otp-timer{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;font-size:13px;color:var(--c-text-3)}
.resend-btn{color:var(--c-cyan);font-size:13px;font-weight:600;transition:var(--t)}
.resend-btn:disabled{color:var(--c-text-4);cursor:not-allowed}
.resend-btn:not(:disabled):hover{text-decoration:underline}

/* ── FORGOT PASSWORD ── */
.back-nav{margin-bottom:20px}
.back-link{display:inline-flex;align-items:center;gap:8px;color:var(--c-text-3);font-size:13px;font-weight:500;transition:var(--t)}
.back-link:hover{color:var(--c-text-1)}

.fp-icon-wrap{text-align:center;margin-bottom:20px}
.fp-big-icon{
  width:72px;height:72px;border-radius:50%;margin:0 auto;
  background:rgba(56,189,248,0.1);border:2px solid rgba(56,189,248,0.25);
  display:flex;align-items:center;justify-content:center;
  font-size:28px;color:var(--c-cyan);
}
.fp-big-icon.purple{background:rgba(167,139,250,0.1);border-color:rgba(167,139,250,0.25);color:var(--c-purple)}
.fp-big-icon.emerald{background:rgba(52,211,153,0.1);border-color:rgba(52,211,153,0.25);color:var(--c-emerald)}

/* ── SUCCESS SCREEN ── */
.success-screen{text-align:center;padding:16px 0}
.success-icon{
  width:80px;height:80px;border-radius:50%;margin:0 auto 20px;
  background:rgba(52,211,153,0.12);border:2px solid rgba(52,211,153,0.3);
  display:flex;align-items:center;justify-content:center;
  font-size:36px;color:var(--c-emerald);
  animation:popIn .5s cubic-bezier(0.34,1.56,0.64,1);
}
@keyframes popIn{from{transform:scale(0);opacity:0}to{transform:scale(1);opacity:1}}
.success-screen h2{font-size:1.5rem;font-weight:800;color:var(--c-text-1);margin-bottom:10px}
.success-screen p{font-size:14px;color:var(--c-text-3);margin-bottom:24px;line-height:1.6}

.success-details{
  background:var(--c-card);border:1px solid var(--c-border);
  border-radius:var(--radius);padding:16px;margin-bottom:24px;text-align:left;
}
.sd-row{display:flex;justify-content:space-between;align-items:center;padding:8px 0;border-bottom:1px solid var(--c-border);font-size:13px}
.sd-row:last-child{border-bottom:none}
.sd-row span{color:var(--c-text-3)}
.sd-row strong{color:var(--c-text-1)}
.text-emerald{color:var(--c-emerald)}

.btn-resend{width:100%;margin-top:10px;padding:10px;color:var(--c-text-3);font-size:13px;transition:var(--t)}
.btn-resend:hover{color:var(--c-cyan)}

.success-tips{margin-bottom:24px;text-align:left}
.tip-item{display:flex;align-items:center;gap:10px;padding:10px;font-size:13px;color:var(--c-text-2);border-bottom:1px solid var(--c-border)}
.tip-item:last-child{border-bottom:none}
.tip-item i{color:var(--c-emerald);width:16px;text-align:center}

/* New Member Details */
#newMemberId{color:var(--c-cyan)}

/* ── UTILITY ── */
.d-none{display:none!important}
.mb-4{margin-bottom:16px}
.mt-4{margin-top:16px}

/* ── RESPONSIVE ── */
@media(max-width:400px){
  .auth-right{padding:20px 14px}
  .pin-inputs{gap:8px}
  .otp-inputs{gap:6px}
  /*.leg-selector{flex-wrap:wrap}*/
  .leg-btn{flex:1 1 40%}
}

/* ── LIGHT THEME ── */
[data-theme="light"] .auth-divider span{background:var(--c-bg)}
[data-theme="light"] .auth-left{background:linear-gradient(160deg,#1e293b,#0f172a)}
[data-theme="light"] select.field-input option{background:#fff;color:#0f172a}


.alert {
    position: relative;
    padding: 15px 20px;
    margin-bottom: 15px;
    border: 1px solid transparent;
    border-radius: 6px;
    display: flex;
    align-items: center;
    font-size: 14px;
}

.alert-dismissible {
    padding-right: 50px;
}

.alert .close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: transparent;
    border: 0;
    font-size: 22px;
    font-weight: bold;
    cursor: pointer;
    opacity: 0.7;
}

.alert .close:hover {
    opacity: 1;
}

.alert-icon {
    width: 40px;
    text-align: center;
    font-size: 20px;
    margin-right: 10px;
}

.alert-message {
    flex: 1;
}

/* Danger Alert */
.alert-danger {
    background: #fdeaea;
    border-color: #f5c6cb;
    color: #721c24;
}

.alert-danger .alert-icon,
.alert-danger .close {
    color: #dc3545;
}

/* Success Alert */
.alert-success {
    background: #eafaf1;
    border-color: #c3e6cb;
    color: #155724;
}

.alert-success .alert-icon,
.alert-success .close {
    color: #28a745;
}