/* ────────────────────────────────────────────────────
   RESET & BASE
──────────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --green-dark:#0e5c2c;--green-mid:#1a7c3e;--green-light:#2ba357;
  --green-glow:rgba(26,124,62,.35);--red:#c1272d;--gold:#e8b84b;
  --white:#fff;--off-white:#f7f8fc;--text-dark:#1a1f2e;
  --text-body:#4a5568;--text-muted:#8a97aa;--border:#e2e8f0;
  --shadow-card:0 20px 60px rgba(0,0,0,.08),0 4px 16px rgba(0,0,0,.05);
  --radius-lg:20px;--radius-md:12px;--radius-sm:8px;
  --transition:.28s cubic-bezier(.4,0,.2,1);
}
html{scroll-behavior:smooth}
body{font-family:'Tajawal',sans-serif;min-height:100vh;display:flex;background:var(--off-white);color:var(--text-dark);overflow-x:hidden}
.hidden{display:none!important}

/* SPLIT WRAPPER */
.login-wrapper{display:flex;width:100%;min-height:100vh}

/* LEFT PANEL */
.panel-brand{
  flex:0 0 48%;position:relative;display:flex;flex-direction:column;
  align-items:center;justify-content:center;overflow:hidden;padding:48px 40px;
  background:radial-gradient(ellipse at 20% 20%,rgba(43,163,87,.4) 0%,transparent 55%),
             radial-gradient(ellipse at 80% 80%,rgba(14,92,44,.6) 0%,transparent 55%),
             linear-gradient(155deg,#0e5c2c 0%,#1a7c3e 45%,#0a3d1f 100%);
}
.blob{position:absolute;border-radius:50%;filter:blur(60px);pointer-events:none}
.blob-1{width:380px;height:380px;background:rgba(43,163,87,.25);top:-120px;right:-100px;animation:floatBlob 8s ease-in-out infinite alternate}
.blob-2{width:280px;height:280px;background:rgba(193,39,45,.12);bottom:60px;left:-60px;animation:floatBlob 11s ease-in-out infinite alternate-reverse}
.blob-3{width:200px;height:200px;background:rgba(232,184,75,.08);bottom:180px;right:40px;animation:floatBlob 9s ease-in-out infinite alternate}
@keyframes floatBlob{from{transform:translate(0,0) scale(1)}to{transform:translate(20px,-20px) scale(1.08)}}
.panel-brand::before{content:'';position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:48px 48px;pointer-events:none}

/* Arch */
.arch-frame{position:relative;display:flex;align-items:center;justify-content:center;width:300px;height:390px;margin-bottom:36px;flex-shrink:0;animation:archEnter 1.2s cubic-bezier(.23,1,.32,1) both}
@keyframes archEnter{from{opacity:0;transform:scale(.9) translateY(30px)}to{opacity:1;transform:scale(1) translateY(0)}}
.arch-svg{position:absolute;inset:0;width:100%;height:100%;filter:drop-shadow(0 0 15px rgba(255,255,255,.1))}
.panel-brand-content{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;text-align:center;gap:6px;padding:0 20px}
.logo{width:110px;height:110px;object-fit:contain;border-radius:50%;border:3px solid rgba(255,255,255,.3);background:rgba(255,255,255,.95);padding:6px;box-shadow:0 8px 32px rgba(0,0,0,.25),0 0 0 6px rgba(255,255,255,.08);margin-bottom:8px;animation:logoFloat 4s ease-in-out infinite alternate,itemFadeIn .8s ease-out both .3s;transition:transform .6s cubic-bezier(.34,1.56,.64,1),box-shadow .4s ease}
@keyframes logoFloat{from{transform:translateY(0)}to{transform:translateY(-10px)}}
.logo:hover{transform:scale(1.1) rotate(5deg);box-shadow:0 15px 40px rgba(0,0,0,.35),0 0 0 8px rgba(255,255,255,.1)}
.university-name{font-size:1.7rem;font-weight:800;color:#fff;letter-spacing:.01em;line-height:1.2;animation:itemFadeIn .8s ease-out both .4s}
.university-sub{font-size:.82rem;font-weight:400;color:rgba(255,255,255,.6);letter-spacing:.12em;text-transform:uppercase;animation:itemFadeIn .8s ease-out both .5s}
.divider-line{width:48px;height:2px;background:linear-gradient(90deg,transparent,var(--gold),transparent);margin:10px auto;border-radius:1px}
.dept-name{font-size:1rem;font-weight:700;color:rgba(255,255,255,.92);animation:itemFadeIn .8s ease-out both .6s}
.dept-activities{font-size:.85rem;font-weight:500;color:var(--gold);margin-top:-2px;animation:itemFadeIn 1s ease-out both .8s,goldPulse 2s infinite alternate}
@keyframes goldPulse{from{opacity:.7;text-shadow:0 0 5px rgba(232,184,75,0);transform:scale(1)}to{opacity:1;text-shadow:0 0 15px rgba(232,184,75,.5);transform:scale(1.02)}}
@keyframes itemFadeIn{from{opacity:0;transform:translateY(15px)}to{opacity:1;transform:translateY(0)}}
.dept-sub{font-size:.72rem;color:rgba(255,255,255,.5);letter-spacing:.08em}

/* Stats */
.brand-stats{display:flex;align-items:center;gap:4px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);border-radius:99px;padding:14px 28px;backdrop-filter:blur(8px);margin-bottom:28px;animation:itemFadeIn .8s ease-out both 1s;transition:transform .3s,background .3s}
.brand-stats:hover{transform:scale(1.05);background:rgba(255,255,255,.12)}
.stat-item{display:flex;flex-direction:column;align-items:center;gap:2px;padding:0 18px}
.stat-num{font-size:1.3rem;font-weight:800;color:#fff;line-height:1}
.stat-lbl{font-size:.68rem;color:rgba(255,255,255,.55);white-space:nowrap}
.stat-sep{width:1px;height:32px;background:rgba(255,255,255,.18)}
.brand-tagline{font-size:.85rem;font-weight:300;color:rgba(255,255,255,.5);text-align:center;line-height:1.7;max-width:280px}

/* RIGHT PANEL */
.panel-form{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 32px;background:var(--off-white);position:relative;overflow-y:auto}

/* Form card */
.form-card{width:100%;max-width:420px;background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-card);padding:40px 36px 32px;border:1px solid var(--border);position:relative;transition:transform .5s cubic-bezier(.175,.885,.32,1.275),box-shadow .4s ease;animation:cardEntrance .8s cubic-bezier(.22,1,.36,1) both}
.form-card:hover{transform:translateY(-8px) scale(1.01);box-shadow:0 30px 80px rgba(0,0,0,.12)}
@keyframes cardEntrance{from{opacity:0;transform:translateY(40px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}
.form-card::before{content:'';position:absolute;top:0;right:20px;left:20px;height:3px;background:linear-gradient(90deg,var(--red),var(--green-mid),var(--gold));border-radius:0 0 4px 4px}

/* Mobile logo */
.mobile-logo{display:none;align-items:center;gap:10px;margin-bottom:24px;padding-bottom:20px;border-bottom:1px solid var(--border)}
.mobile-logo img{width:44px;height:44px;object-fit:contain;border-radius:50%}
.mobile-logo span{font-size:1rem;font-weight:700}

/* Form header */
.form-header{margin-bottom:28px}
.form-title{font-size:1.8rem;font-weight:800;color:var(--text-dark);line-height:1.2;margin-bottom:6px}
.form-sub{font-size:.85rem;color:var(--text-muted);line-height:1.6}

/* Staggered entrance */
.form-header,.field-group,.form-options,.btn-login,.copyright{animation:itemEntrance .6s cubic-bezier(.22,1,.36,1) both}
.form-header{animation-delay:.1s}
#fieldEmail{animation-delay:.2s}
#fieldPass{animation-delay:.3s}
.form-options{animation-delay:.4s}
.btn-login{animation-delay:.5s}
.copyright{animation-delay:.6s}
@keyframes itemEntrance{from{opacity:0;transform:translateX(-20px);filter:blur(4px)}to{opacity:1;transform:translateX(0);filter:blur(0)}}

/* Server error alert */
.alert-error{background:#fff0f0;border:1px solid #f5c6cb;color:var(--red);border-radius:var(--radius-sm);padding:10px 14px;font-size:.85rem;margin-bottom:18px;display:flex;align-items:center;gap:8px}
.alert-error svg{width:16px;height:16px;flex-shrink:0}

/* Field groups */
.field-group{margin-bottom:20px}
.field-group label{display:block;font-size:.85rem;font-weight:600;color:var(--text-dark);margin-bottom:7px}
.input-wrap{position:relative;display:flex;align-items:center}
.field-icon{position:absolute;right:14px;width:18px;height:18px;color:var(--text-muted);pointer-events:none;transition:color var(--transition),transform .4s cubic-bezier(.34,1.56,.64,1);flex-shrink:0}
.input-wrap input{width:100%;padding:13px 46px 13px 44px;font-family:'Tajawal',sans-serif;font-size:.95rem;color:var(--text-dark);background:var(--off-white);border:1.5px solid var(--border);border-radius:var(--radius-md);outline:none;transition:border-color var(--transition),box-shadow var(--transition),background var(--transition);direction:rtl}
.input-wrap input::placeholder{color:var(--text-muted);font-weight:300}
.input-wrap input:focus{border-color:var(--green-mid);background:#fff;box-shadow:0 0 0 4px rgba(26,124,62,.1)}
.input-wrap:focus-within .field-icon{color:var(--green-mid);transform:scale(1.15) rotate(-5deg)}
.field-group.has-error .input-wrap input{border-color:var(--red);box-shadow:0 0 0 4px rgba(193,39,45,.08)}
.field-error{display:none;font-size:.75rem;color:var(--red);margin-top:5px;padding-right:4px}
.field-group.has-error .field-error{display:block}

/* Toggle password */
.toggle-password{position:absolute;left:12px;background:none;border:none;cursor:pointer;color:var(--text-muted);display:flex;align-items:center;padding:4px;border-radius:6px;transition:color var(--transition)}
.toggle-password:hover{color:var(--green-mid)}
.toggle-password svg{width:17px;height:17px}

/* Options row */
.form-options{display:flex;align-items:center;margin-bottom:24px}
.checkbox-label{display:flex;align-items:center;gap:8px;cursor:pointer;font-size:.84rem;color:var(--text-body);user-select:none}
.checkbox-label input[type=checkbox]{display:none}
.checkmark{width:18px;height:18px;border:1.5px solid var(--border);border-radius:5px;display:flex;align-items:center;justify-content:center;transition:all var(--transition);flex-shrink:0;background:var(--off-white)}
.checkbox-label input:checked~.checkmark{background:var(--green-mid);border-color:var(--green-mid)}
.checkbox-label input:checked~.checkmark::after{content:'';display:block;width:5px;height:9px;border:2px solid #fff;border-top:none;border-right:none;transform:rotate(-45deg) translate(1px,-1px)}

/* Submit button */
.btn-login{width:100%;display:flex;align-items:center;justify-content:center;gap:10px;padding:14px;background:linear-gradient(135deg,var(--green-mid),var(--green-dark));color:#fff;border:none;border-radius:var(--radius-md);font-family:'Tajawal',sans-serif;font-size:1rem;font-weight:700;cursor:pointer;transition:opacity var(--transition),transform var(--transition),box-shadow var(--transition);box-shadow:0 6px 20px rgba(26,124,62,.35);position:relative;overflow:hidden;margin-bottom:20px}
.btn-login::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(255,255,255,.1),transparent)}
.btn-login:hover{opacity:.92;transform:translateY(-1px);box-shadow:0 10px 28px rgba(26,124,62,.4)}
.btn-login:active{transform:translateY(0)}
.btn-login .btn-arrow{width:18px;height:18px;transform:rotate(180deg)}
.btn-login .btn-spinner{width:18px;height:18px;border:2px solid rgba(255,255,255,.35);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* Success overlay */
.success-overlay{position:absolute;inset:0;background:#fff;border-radius:var(--radius-lg);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;opacity:0;pointer-events:none;transition:opacity .4s ease;z-index:10;text-align:center;padding:32px}
.success-overlay.show{opacity:1;pointer-events:all}
.success-icon{width:64px;height:64px;border-radius:50%;background:linear-gradient(135deg,var(--green-mid),var(--green-dark));display:flex;align-items:center;justify-content:center;box-shadow:0 8px 24px rgba(26,124,62,.3);animation:popIn .4s cubic-bezier(.34,1.56,.64,1) both}
.success-icon svg{width:30px;height:30px;color:#fff}
@keyframes popIn{from{transform:scale(0)}to{transform:scale(1)}}
.success-title{font-size:1.25rem;font-weight:800;color:var(--text-dark)}
.success-sub{font-size:.85rem;color:var(--text-muted)}

/* Copyright */
.copyright{margin-top:28px;font-size:.73rem;color:var(--text-muted);text-align:center}

/* RESPONSIVE */
@media(max-width:900px){
  .login-wrapper{flex-direction:column}
  .panel-brand{flex:0 0 auto;min-height:45vh;padding:44px 24px 32px}
  .arch-frame{width:240px;height:310px;margin-bottom:24px}
  .university-name{font-size:1.4rem}
  .brand-stats{padding:10px 16px}
  .stat-item{padding:0 12px}
  .brand-tagline{display:none}
  .panel-form{padding:24px 16px 40px}
  .form-card{padding:28px 20px 24px}
  .mobile-logo{display:flex}
}
@media(max-width:480px){
  .panel-brand{min-height:38vh}
  .arch-frame{width:200px;height:260px}
  .logo{width:80px;height:80px}
  .stat-sep{display:none}
  .stat-item{padding:0 8px}
  .form-card{border-radius:var(--radius-md);padding:24px 16px 20px}
  .form-title{font-size:1.5rem}
}