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7 March 2026

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21 October 2025

Exemple de modèle HTML de base

15 January 2026

Knight's Defense : Code source du jeu HTML Canvas

HTML

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>NEXUS — Secure Access</title>
  <link href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap" rel="stylesheet">
 /head>
<body>

<div class="bg-canvas">
    <div class="blob blob-1"></div>
    <div class="blob blob-2"></div>
    <div class="blob blob-3"></div>
    <div class="blob blob-4"></div>
    <div class="blob blob-5"></div>
    <div class="mesh-grid"></div>
    <div class="light-streak streak-1"></div>
    <div class="light-streak streak-2"></div>
    <div class="light-streak streak-3"></div>
    <canvas id="particles-canvas"></canvas>
  </div>
  <div class="cursor-glow" id="cursor-glow"></div>
  <div class="noise-overlay"></div>

<main class="main-container">
    <section class="login-card" id="login-card" aria-label="Login Form">

<header class="card-header">
        <div class="brand-icon">
          <svg viewBox="0 0 48 48" fill="none">
            <path d="M24 4L6 14v20l18 10 18-10V14L24 4z" stroke="url(#iconGrad)" stroke-width="2" fill="none"/>
            <path d="M24 4v40M6 14l18 10 18-10M6 34l18-10 18 10" stroke="url(#iconGrad)" stroke-width="1.5" opacity="0.5"/>
            <circle cx="24" cy="24" r="5" fill="url(#iconGrad)" opacity="0.8"/>
            <defs>
              <linearGradient id="iconGrad" x1="6" y1="4" x2="42" y2="44">
                <stop offset="0%" stop-color="#00e5ff"/>
                <stop offset="100%" stop-color="#8b5cf6"/>
              </linearGradient>
            </defs>
          </svg>
        </div>
        <h1 class="card-title">Welcome Back</h1>
        <p class="card-subtitle">Sign in to your Nexus account to continue</p>
      </header>

<form class="form-body" id="login-form" novalidate autocomplete="off">

<div class="input-group" id="email-group">
          <div class="input-wrapper">
            <svg class="input-icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round">
              <rect x="2" y="4" width="20" height="16" rx="3"/>
              <path d="M2 7l10 6 10-6"/>
            </svg>
            <input
              type="email"
              class="input-field"
              id="email"
              name="email"
              placeholder="Email address"
              autocomplete="email"
              spellcheck="false"
            />
            <label class="floating-label" for="email">Email address</label>
          </div>
          <div class="error-message" id="email-error">
            <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round">
              <circle cx="12" cy="12" r="10"/>
              <line x1="12" y1="8" x2="12" y2="12"/>
              <line x1="12" y1="16" x2="12.01" y2="16"/>
            </svg>
            <span></span>
          </div>
        </div>

<div class="input-group" id="password-group">
          <div class="input-wrapper">
            <svg class="input-icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round">
              <rect x="3" y="11" width="18" height="11" rx="3"/>
              <path d="M7 11V7a5 5 0 0110 0v4"/>
            </svg>
            <input
              type="password"
              class="input-field"
              id="password"
              name="password"
              placeholder="Password"
              autocomplete="current-password"
            />
            <label class="floating-label" for="password">Password</label>
            <button type="button" class="password-toggle" id="toggle-password" aria-label="Toggle password visibility" tabindex="-1">
              <svg id="eye-open" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round">
                <path d="M1 12s4-8 11-8 11 8 11 8-4 8-11 8-11-8-11-8z"/>
                <circle cx="12" cy="12" r="3"/>
              </svg>
              <svg id="eye-closed" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round" style="display:none;">
                <path d="M17.94 17.94A10.07 10.07 0 0112 20c-7 0-11-8-11-8a18.45 18.45 0 015.06-5.94M9.9 4.24A9.12 9.12 0 0112 4c7 0 11 8 11 8a18.5 18.5 0 01-2.16 3.19m-6.72-1.07a3 3 0 11-4.24-4.24"/>
                <line x1="1" y1="1" x2="23" y2="23"/>
              </svg>
            </button>
          </div>
          <div class="error-message" id="password-error">
            <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round">
              <circle cx="12" cy="12" r="10"/>
              <line x1="12" y1="8" x2="12" y2="12"/>
              <line x1="12" y1="16" x2="12.01" y2="16"/>
            </svg>
            <span></span>
          </div>
          <div class="password-strength" id="password-strength">
            <div class="strength-bar" id="str-1"><div class="fill"></div></div>
            <div class="strength-bar" id="str-2"><div class="fill"></div></div>
            <div class="strength-bar" id="str-3"><div class="fill"></div></div>
            <div class="strength-bar" id="str-4"><div class="fill"></div></div>
          </div>
          <div class="strength-text" id="strength-text"></div>
        </div>

<div class="meta-row">
          <label class="checkbox-wrapper">
            <input type="checkbox" id="remember" name="remember" />
            <div class="custom-checkbox">
              <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="3" stroke-linecap="round" stroke-linejoin="round">
                <polyline points="20 6 9 17 4 12"/>
              </svg>
            </div>
            <span class="checkbox-label">Remember me</span>
          </label>
          <a href="#" class="forgot-link" onclick="event.preventDefault();">Forgot password?</a>
        </div>

<button type="submit" class="login-btn" id="login-btn">
          <span class="btn-content">
            <span>Sign In</span>
            <svg class="arrow" width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
              <line x1="5" y1="12" x2="19" y2="12"/>
              <polyline points="12 5 19 12 12 19"/>
            </svg>
          </span>
          <div class="btn-spinner">
            <div class="spinner"></div>
          </div>
          <div class="btn-success-icon">
            <svg class="success-check" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round">
              <path d="M5 13l4 4L19 7"/>
            </svg>
          </div>
        </button>
      </form>

<div class="divider">
        <div class="divider-line"></div>
        <span class="divider-text">or</span>
        <div class="divider-line"></div>
      </div>

<div class="social-row">
        <button type="button" class="social-btn" aria-label="Sign in with Google">
          <svg viewBox="0 0 24 24" fill="currentColor">
            <path d="M22.56 12.25c0-.78-.07-1.53-.2-2.25H12v4.26h5.92a5.06 5.06 0 01-2.2 3.32v2.77h3.57c2.08-1.92 3.28-4.74 3.28-8.1z" opacity="0.8"/>
            <path d="M12 23c2.97 0 5.46-.98 7.28-2.66l-3.57-2.77c-.98.66-2.23 1.06-3.71 1.06-2.86 0-5.29-1.93-6.16-4.53H2.18v2.84C3.99 20.53 7.7 23 12 23z" opacity="0.7"/>
            <path d="M5.84 14.09c-.22-.66-.35-1.36-.35-2.09s.13-1.43.35-2.09V7.07H2.18C1.43 8.55 1 10.22 1 12s.43 3.45 1.18 4.93l2.85-2.22.81-.62z" opacity="0.6"/>
            <path d="M12 5.38c1.62 0 3.06.56 4.21 1.64l3.15-3.15C17.45 2.09 14.97 1 12 1 7.7 1 3.99 3.47 2.18 7.07l3.66 2.84c.87-2.6 3.3-4.53 6.16-4.53z" opacity="0.8"/>
          </svg>
        </button>
        <button type="button" class="social-btn" aria-label="Sign in with Apple">
          <svg viewBox="0 0 24 24" fill="currentColor">
            <path d="M18.71 19.5c-.83 1.24-1.71 2.45-3.05 2.47-1.34.03-1.77-.79-3.29-.79-1.53 0-2 .77-3.27.82-1.31.05-2.3-1.32-3.14-2.53C4.25 17 2.94 12.45 4.7 9.39c.87-1.52 2.43-2.48 4.12-2.51 1.28-.02 2.5.87 3.29.87.78 0 2.26-1.07 3.8-.91.65.03 2.47.26 3.64 1.98-.09.06-2.17 1.28-2.15 3.81.03 3.02 2.65 4.03 2.68 4.04-.03.07-.42 1.44-1.38 2.83M13 3.5c.73-.83 1.94-1.46 2.94-1.5.13 1.17-.34 2.35-1.04 3.19-.69.85-1.83 1.51-2.95 1.42-.15-1.15.41-2.35 1.05-3.11z"/>
          </svg>
        </button>
        <button type="button" class="social-btn" aria-label="Sign in with GitHub">
          <svg viewBox="0 0 24 24" fill="currentColor">
            <path d="M12 0C5.37 0 0 5.37 0 12c0 5.31 3.435 9.795 8.205 11.385.6.105.825-.255.825-.57 0-.285-.015-1.23-.015-2.235-3.015.555-3.795-.735-4.035-1.41-.135-.345-.72-1.41-1.23-1.695-.42-.225-1.02-.78-.015-.795.945-.015 1.62.87 1.845 1.23 1.08 1.815 2.805 1.305 3.495.99.105-.78.42-1.305.765-1.605-2.67-.3-5.46-1.335-5.46-5.925 0-1.305.465-2.385 1.23-3.225-.12-.3-.54-1.53.12-3.18 0 0 1.005-.315 3.3 1.23.96-.27 1.98-.405 3-.405s2.04.135 3 .405c2.295-1.56 3.3-1.23 3.3-1.23.66 1.65.24 2.88.12 3.18.765.84 1.23 1.905 1.23 3.225 0 4.605-2.805 5.625-5.475 5.925.435.375.81 1.095.81 2.22 0 1.605-.015 2.895-.015 3.3 0 .315.225.69.825.57A12.02 12.02 0 0024 12c0-6.63-5.37-12-12-12z"/>
          </svg>
        </button>
      </div>

<footer class="card-footer">
        <p>Don't have an account? <a href="#" class="register-link" onclick="event.preventDefault();">Create one</a></p>
      </footer>

<div class="success-overlay" id="success-overlay">
        <div class="success-ring">
          <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
            <path d="M5 13l4 4L19 7"/>
          </svg>
        </div>
        <div class="success-title">Welcome back!</div>
        <div class="success-subtitle">Redirecting to your dashboard...</div>
      </div>

</section>
  </main>

</body>
</html>

CSS

:root {
      --cyan: #00e5ff;
      --cyan-dim: #00e5ff44;
      --violet: #8b5cf6;
      --violet-dim: #8b5cf644;
      --turquoise: #2dd4bf;
      --blue: #3b82f6;
      --blue-glow: #3b82f640;
      --white: #f0f4ff;
      --white-dim: #f0f4ff22;
      --error: #f43f5e;
      --error-dim: #f43f5e33;
      --success: #10b981;
      --success-dim: #10b98133;
      --glass-bg: rgba(8, 12, 28, 0.55);
      --glass-border: rgba(255, 255, 255, 0.07);
      --glass-highlight: rgba(255, 255, 255, 0.04);
      --input-bg: rgba(255, 255, 255, 0.04);
      --input-border: rgba(255, 255, 255, 0.08);
      --input-focus: rgba(0, 229, 255, 0.25);
      --radius: 24px;
      --radius-sm: 14px;
      --radius-xs: 10px;
      --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
      --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
      --transition-spring: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    }

html, body {
      width: 100%;
      height: 100%;
      overflow: hidden;
      font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
      background: #050510;
      color: var(--white);
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

/* ═══════════════════════════════════════════════
       ANIMATED BACKGROUND
       ═══════════════════════════════════════════════ */
    .bg-canvas {
      position: fixed;
      inset: 0;
      z-index: 0;
      overflow: hidden;
    }

/* Deep base gradient */
    .bg-canvas::before {
      content: '';
      position: absolute;
      inset: -20%;
      background:
        radial-gradient(ellipse 80% 60% at 20% 80%, rgba(59, 130, 246, 0.12) 0%, transparent 60%),
        radial-gradient(ellipse 60% 80% at 80% 20%, rgba(139, 92, 246, 0.10) 0%, transparent 60%),
        radial-gradient(ellipse 90% 50% at 50% 50%, rgba(0, 229, 255, 0.04) 0%, transparent 70%),
        linear-gradient(180deg, #030308 0%, #0a0a1a 40%, #080818 100%);
      animation: bgShift 25s ease-in-out infinite alternate;
    }

@keyframes bgShift {
      0% { transform: translate(0, 0) scale(1); }
      33% { transform: translate(-2%, 1%) scale(1.02); }
      66% { transform: translate(1%, -1%) scale(1.01); }
      100% { transform: translate(-1%, 2%) scale(1.03); }
    }

/* Floating blobs */
    .blob {
      position: absolute;
      border-radius: 50%;
      filter: blur(80px);
      opacity: 0;
      animation: blobFloat linear infinite;
      will-change: transform, opacity;
      pointer-events: none;
    }

.blob-1 {
      width: 500px; height: 500px;
      background: radial-gradient(circle, rgba(0, 229, 255, 0.18), transparent 70%);
      top: -10%; left: -5%;
      animation-duration: 22s;
      animation-delay: 0s;
    }
    .blob-2 {
      width: 600px; height: 600px;
      background: radial-gradient(circle, rgba(139, 92, 246, 0.15), transparent 70%);
      bottom: -15%; right: -10%;
      animation-duration: 28s;
      animation-delay: -5s;
    }
    .blob-3 {
      width: 400px; height: 400px;
      background: radial-gradient(circle, rgba(45, 212, 191, 0.12), transparent 70%);
      top: 40%; left: 60%;
      animation-duration: 20s;
      animation-delay: -10s;
    }
    .blob-4 {
      width: 350px; height: 350px;
      background: radial-gradient(circle, rgba(59, 130, 246, 0.14), transparent 70%);
      top: 60%; left: 10%;
      animation-duration: 26s;
      animation-delay: -3s;
    }
    .blob-5 {
      width: 450px; height: 450px;
      background: radial-gradient(circle, rgba(0, 229, 255, 0.08), transparent 70%);
      top: 10%; right: 20%;
      animation-duration: 30s;
      animation-delay: -8s;
    }

@keyframes blobFloat {
      0%   { transform: translate(0, 0) scale(1); opacity: 0.6; }
      25%  { transform: translate(60px, -80px) scale(1.1); opacity: 0.8; }
      50%  { transform: translate(-40px, -120px) scale(0.95); opacity: 0.65; }
      75%  { transform: translate(80px, -40px) scale(1.05); opacity: 0.75; }
      100% { transform: translate(0, 0) scale(1); opacity: 0.6; }
    }

/* Grid mesh overlay */
    .mesh-grid {
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
      background-size: 60px 60px;
      mask-image: radial-gradient(ellipse 60% 50% at 50% 50%, black 20%, transparent 70%);
      -webkit-mask-image: radial-gradient(ellipse 60% 50% at 50% 50%, black 20%, transparent 70%);
      animation: meshPulse 8s ease-in-out infinite alternate;
    }

@keyframes meshPulse {
      0% { opacity: 0.4; }
      100% { opacity: 0.8; }
    }

/* Light streaks */
    .light-streak {
      position: absolute;
      width: 200%;
      height: 1px;
      background: linear-gradient(90deg, transparent 0%, rgba(0, 229, 255, 0.15) 30%, rgba(139, 92, 246, 0.2) 50%, rgba(0, 229, 255, 0.15) 70%, transparent 100%);
      transform-origin: center;
      animation: streakMove linear infinite;
      pointer-events: none;
    }
    .streak-1 {
      top: 25%; left: -50%;
      transform: rotate(-15deg);
      animation-duration: 12s;
    }
    .streak-2 {
      top: 70%; left: -50%;
      transform: rotate(10deg);
      animation-duration: 16s;
      animation-delay: -4s;
      opacity: 0.5;
    }
    .streak-3 {
      top: 50%; left: -50%;
      transform: rotate(-5deg);
      animation-duration: 20s;
      animation-delay: -8s;
      opacity: 0.3;
    }

@keyframes streakMove {
      0%   { transform: translateX(-30%) rotate(-15deg); opacity: 0; }
      10%  { opacity: 1; }
      90%  { opacity: 1; }
      100% { transform: translateX(30%) rotate(-15deg); opacity: 0; }
    }

/* Particles canvas */
    #particles-canvas {
      position: absolute;
      inset: 0;
      pointer-events: none;
    }

/* Mouse spotlight */
    .cursor-glow {
      position: fixed;
      width: 600px;
      height: 600px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(0, 229, 255, 0.06) 0%, rgba(139, 92, 246, 0.03) 30%, transparent 70%);
      pointer-events: none;
      z-index: 1;
      transform: translate(-50%, -50%);
      transition: opacity 0.3s ease;
      will-change: left, top;
    }

/* Noise overlay for texture */
    .noise-overlay {
      position: fixed;
      inset: 0;
      z-index: 2;
      opacity: 0.025;
      pointer-events: none;
      background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='1'/%3E%3C/svg%3E");
      background-repeat: repeat;
      background-size: 256px 256px;
    }

/* ═══════════════════════════════════════════════
       MAIN CONTAINER
       ═══════════════════════════════════════════════ */
    .main-container {
      position: relative;
      z-index: 10;
      display: flex;
      align-items: center;
      justify-content: center;
      width: 100%;
      height: 100%;
      padding: 24px;
    }

/* ═══════════════════════════════════════════════
       GLASS LOGIN CARD
       ═══════════════════════════════════════════════ */
    .login-card {
      position: relative;
      width: 100%;
      max-width: 460px;
      padding: 48px 40px 40px;
      background: var(--glass-bg);
      backdrop-filter: blur(40px) saturate(1.4);
      -webkit-backdrop-filter: blur(40px) saturate(1.4);
      border-radius: var(--radius);
      border: 1px solid var(--glass-border);
      box-shadow:
        0 0 0 1px rgba(255, 255, 255, 0.03) inset,
        0 1px 0 0 rgba(255, 255, 255, 0.05) inset,
        0 25px 60px -12px rgba(0, 0, 0, 0.5),
        0 0 100px -20px rgba(0, 229, 255, 0.08),
        0 0 80px -30px rgba(139, 92, 246, 0.06);
      transform: translateY(0);
      transition: transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow var(--transition);
      animation: cardEntrance 0.9s cubic-bezier(0.16, 1, 0.3, 1) forwards;
      opacity: 0;
    }

@keyframes cardEntrance {
      0% {
        opacity: 0;
        transform: translateY(40px) scale(0.96);
        filter: blur(8px);
      }
      100% {
        opacity: 1;
        transform: translateY(0) scale(1);
        filter: blur(0);
      }
    }

.login-card:hover {
      box-shadow:
        0 0 0 1px rgba(255, 255, 255, 0.04) inset,
        0 1px 0 0 rgba(255, 255, 255, 0.06) inset,
        0 30px 70px -12px rgba(0, 0, 0, 0.55),
        0 0 120px -20px rgba(0, 229, 255, 0.1),
        0 0 100px -30px rgba(139, 92, 246, 0.08);
    }

/* Card top glow accent */
    .login-card::before {
      content: '';
      position: absolute;
      top: -1px;
      left: 40px;
      right: 40px;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(0, 229, 255, 0.5), rgba(139, 92, 246, 0.5), transparent);
      border-radius: 1px;
    }

/* Inner glow */
    .login-card::after {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 120px;
      background: linear-gradient(180deg, rgba(0, 229, 255, 0.03) 0%, transparent 100%);
      border-radius: var(--radius) var(--radius) 0 0;
      pointer-events: none;
    }

/* ═══════════════════════════════════════════════
       CARD HEADER
       ═══════════════════════════════════════════════ */
    .card-header {
      position: relative;
      z-index: 1;
      text-align: center;
      margin-bottom: 36px;
    }

.brand-icon {
      width: 52px;
      height: 52px;
      margin: 0 auto 20px;
      position: relative;
      display: flex;
      align-items: center;
      justify-content: center;
    }

.brand-icon svg {
      width: 100%;
      height: 100%;
      filter: drop-shadow(0 0 20px rgba(0, 229, 255, 0.3));
    }

.brand-icon::after {
      content: '';
      position: absolute;
      inset: -8px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(0, 229, 255, 0.1), transparent 70%);
      animation: iconPulse 3s ease-in-out infinite;
    }

@keyframes iconPulse {
      0%, 100% { transform: scale(1); opacity: 0.5; }
      50% { transform: scale(1.15); opacity: 0.8; }
    }

.card-title {
      font-size: 26px;
      font-weight: 700;
      letter-spacing: -0.5px;
      background: linear-gradient(135deg, #ffffff 0%, #b8c5e8 50%, #ffffff 100%);
      background-clip: text;
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 8px;
      line-height: 1.2;
    }

.card-subtitle {
      font-size: 13.5px;
      font-weight: 400;
      color: rgba(176, 190, 220, 0.6);
      letter-spacing: 0.2px;
      line-height: 1.5;
    }

/* ═══════════════════════════════════════════════
       FORM ELEMENTS
       ═══════════════════════════════════════════════ */
    .form-body {
      position: relative;
      z-index: 1;
    }

/* Input group */
    .input-group {
      position: relative;
      margin-bottom: 22px;
    }

.input-wrapper {
      position: relative;
      display: flex;
      align-items: center;
    }

.input-icon {
      position: absolute;
      left: 16px;
      width: 18px;
      height: 18px;
      color: rgba(176, 190, 220, 0.35);
      transition: color var(--transition), transform var(--transition);
      pointer-events: none;
      z-index: 2;
    }

.input-field {
      width: 100%;
      height: 54px;
      padding: 16px 48px 0 48px;
      background: var(--input-bg);
      border: 1px solid var(--input-border);
      border-radius: var(--radius-sm);
      color: var(--white);
      font-family: 'Inter', sans-serif;
      font-size: 14.5px;
      font-weight: 400;
      outline: none;
      transition: all var(--transition);
      caret-color: var(--cyan);
      letter-spacing: 0.1px;
    }

.input-field::placeholder {
      color: transparent;
    }

.floating-label {
      position: absolute;
      left: 48px;
      top: 50%;
      transform: translateY(-50%);
      font-size: 14px;
      font-weight: 400;
      color: rgba(176, 190, 220, 0.4);
      pointer-events: none;
      transition: all var(--transition);
      transform-origin: left center;
      letter-spacing: 0.2px;
    }

/* Floating label active states */
    .input-field:focus ~ .floating-label,
    .input-field.has-value ~ .floating-label {
      top: 14px;
      transform: translateY(0) scale(0.78);
      color: var(--cyan);
      font-weight: 500;
      letter-spacing: 0.5px;
    }

.input-field:focus {
      background: rgba(0, 229, 255, 0.04);
      border-color: rgba(0, 229, 255, 0.25);
      box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.08), 0 0 30px -10px rgba(0, 229, 255, 0.12);
    }

.input-field:focus ~ .input-icon {
      color: var(--cyan);
      transform: scale(1.1);
    }

/* Validation states */
    .input-group.error .input-field {
      border-color: rgba(244, 63, 94, 0.4);
      background: rgba(244, 63, 94, 0.04);
      animation: inputShake 0.5s cubic-bezier(0.36, 0.07, 0.19, 0.97);
    }

.input-group.error .input-field:focus {
      box-shadow: 0 0 0 3px var(--error-dim), 0 0 30px -10px rgba(244, 63, 94, 0.15);
    }

.input-group.error .floating-label,
    .input-group.error .input-icon {
      color: var(--error) !important;
    }

.input-group.valid .input-field {
      border-color: rgba(16, 185, 129, 0.3);
    }

.input-group.valid .input-field:focus {
      box-shadow: 0 0 0 3px var(--success-dim), 0 0 30px -10px rgba(16, 185, 129, 0.12);
      background: rgba(16, 185, 129, 0.03);
    }

.input-group.valid .floating-label,
    .input-group.valid .input-icon {
      color: var(--success) !important;
    }

@keyframes inputShake {
      0%, 100% { transform: translateX(0); }
      15% { transform: translateX(-6px); }
      30% { transform: translateX(5px); }
      45% { transform: translateX(-4px); }
      60% { transform: translateX(3px); }
      75% { transform: translateX(-2px); }
      90% { transform: translateX(1px); }
    }

/* Error message */
    .error-message {
      display: flex;
      align-items: center;
      gap: 6px;
      margin-top: 8px;
      font-size: 12px;
      font-weight: 450;
      color: var(--error);
      opacity: 0;
      transform: translateY(-4px);
      transition: all var(--transition-fast);
      overflow: hidden;
      max-height: 0;
    }

.error-message.visible {
      opacity: 1;
      transform: translateY(0);
      max-height: 30px;
    }

.error-message svg {
      width: 13px;
      height: 13px;
      flex-shrink: 0;
    }

/* Password toggle */
    .password-toggle {
      position: absolute;
      right: 14px;
      top: 50%;
      transform: translateY(-50%);
      width: 36px;
      height: 36px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: none;
      border: none;
      color: rgba(176, 190, 220, 0.35);
      cursor: pointer;
      border-radius: 10px;
      transition: all var(--transition-fast);
      z-index: 2;
    }

.password-toggle:hover {
      color: rgba(176, 190, 220, 0.7);
      background: rgba(255, 255, 255, 0.05);
    }

.password-toggle svg {
      width: 18px;
      height: 18px;
      transition: transform var(--transition-spring);
    }

.password-toggle:active svg {
      transform: scale(0.85);
    }

/* ═══════════════════════════════════════════════
       PASSWORD STRENGTH
       ═══════════════════════════════════════════════ */
    .password-strength {
      display: flex;
      gap: 4px;
      margin-top: 10px;
      opacity: 0;
      transform: translateY(-4px);
      transition: all var(--transition);
    }

.password-strength.visible {
      opacity: 1;
      transform: translateY(0);
    }

.strength-bar {
      flex: 1;
      height: 3px;
      border-radius: 2px;
      background: rgba(255, 255, 255, 0.06);
      overflow: hidden;
      transition: all var(--transition);
    }

.strength-bar .fill {
      width: 0%;
      height: 100%;
      border-radius: 2px;
      transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    }

.strength-bar.active .fill {
      width: 100%;
    }

.strength-weak .fill { background: var(--error); }
    .strength-fair .fill { background: #f59e0b; }
    .strength-good .fill { background: var(--cyan); }
    .strength-strong .fill { background: var(--success); }

.strength-text {
      font-size: 11px;
      font-weight: 500;
      margin-top: 6px;
      letter-spacing: 0.5px;
      transition: color var(--transition);
    }

/* ═══════════════════════════════════════════════
       META ROW (Remember / Forgot)
       ═══════════════════════════════════════════════ */
    .meta-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 28px;
      margin-top: 4px;
    }

/* Custom checkbox */
    .checkbox-wrapper {
      display: flex;
      align-items: center;
      gap: 10px;
      cursor: pointer;
      user-select: none;
    }

.checkbox-wrapper input {
      display: none;
    }

.custom-checkbox {
      width: 18px;
      height: 18px;
      border: 1.5px solid rgba(255, 255, 255, 0.12);
      border-radius: 6px;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: all var(--transition);
      background: rgba(255, 255, 255, 0.03);
      flex-shrink: 0;
    }

.custom-checkbox svg {
      width: 11px;
      height: 11px;
      opacity: 0;
      transform: scale(0.5);
      transition: all var(--transition-spring);
      color: white;
    }

.checkbox-wrapper input:checked ~ .custom-checkbox {
      background: linear-gradient(135deg, var(--cyan), var(--violet));
      border-color: transparent;
      box-shadow: 0 0 12px rgba(0, 229, 255, 0.25);
    }

.checkbox-wrapper input:checked ~ .custom-checkbox svg {
      opacity: 1;
      transform: scale(1);
    }

.checkbox-label {
      font-size: 13px;
      font-weight: 400;
      color: rgba(176, 190, 220, 0.55);
      transition: color var(--transition);
    }

.checkbox-wrapper:hover .checkbox-label {
      color: rgba(176, 190, 220, 0.8);
    }

/* Forgot link */
    .forgot-link {
      font-size: 13px;
      font-weight: 500;
      color: var(--cyan);
      text-decoration: none;
      opacity: 0.7;
      transition: all var(--transition);
      position: relative;
    }

.forgot-link::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 0%;
      height: 1px;
      background: var(--cyan);
      transition: width var(--transition);
    }

.forgot-link:hover {
      opacity: 1;
    }

.forgot-link:hover::after {
      width: 100%;
    }

/* ═══════════════════════════════════════════════
       LOGIN BUTTON
       ═══════════════════════════════════════════════ */
    .login-btn {
      position: relative;
      width: 100%;
      height: 54px;
      border: none;
      border-radius: var(--radius-sm);
      background: linear-gradient(135deg, var(--cyan), var(--blue), var(--violet));
      background-size: 200% 200%;
      color: white;
      font-family: 'Inter', sans-serif;
      font-size: 15px;
      font-weight: 600;
      letter-spacing: 0.5px;
      cursor: pointer;
      overflow: hidden;
      transition: all var(--transition);
      box-shadow: 0 4px 20px -4px rgba(0, 229, 255, 0.3), 0 0 40px -10px rgba(139, 92, 246, 0.2);
      animation: btnGradient 4s ease-in-out infinite;
    }

@keyframes btnGradient {
      0%, 100% { background-position: 0% 50%; }
      50% { background-position: 100% 50%; }
    }

.login-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 30px -4px rgba(0, 229, 255, 0.4), 0 0 60px -10px rgba(139, 92, 246, 0.3);
    }

.login-btn:active {
      transform: translateY(0) scale(0.985);
    }

/* Button shine effect */
    .login-btn::before {
      content: '';
      position: absolute;
      top: 0;
      left: -100%;
      width: 100%;
      height: 100%;
      background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
      transition: left 0.6s ease;
    }

.login-btn:hover::before {
      left: 100%;
    }

/* Button ripple */
    .ripple {
      position: absolute;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.3);
      transform: scale(0);
      animation: rippleEffect 0.6s ease-out forwards;
      pointer-events: none;
    }

@keyframes rippleEffect {
      to {
        transform: scale(4);
        opacity: 0;
      }
    }

.btn-content {
      position: relative;
      z-index: 1;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      transition: all var(--transition);
    }

.btn-content .arrow {
      transition: transform var(--transition);
    }

.login-btn:hover .btn-content .arrow {
      transform: translateX(3px);
    }

/* Loading state */
    .login-btn.loading .btn-content {
      opacity: 0;
      transform: translateY(10px);
    }

.btn-spinner {
      position: absolute;
      inset: 0;
      display: flex;
      align-items: center;
      justify-content: center;
      opacity: 0;
      transition: opacity var(--transition);
    }

.login-btn.loading .btn-spinner {
      opacity: 1;
    }

.spinner {
      width: 22px;
      height: 22px;
      border: 2.5px solid rgba(255, 255, 255, 0.25);
      border-top-color: white;
      border-radius: 50%;
      animation: spin 0.7s linear infinite;
    }

@keyframes spin {
      to { transform: rotate(360deg); }
    }

/* Success state */
    .login-btn.success {
      background: var(--success) !important;
      box-shadow: 0 4px 20px -4px rgba(16, 185, 129, 0.4) !important;
      animation: none;
    }

.btn-success-icon {
      position: absolute;
      inset: 0;
      display: flex;
      align-items: center;
      justify-content: center;
      opacity: 0;
      transition: opacity var(--transition);
    }

.login-btn.success .btn-success-icon {
      opacity: 1;
    }

.login-btn.success .btn-spinner,
    .login-btn.success .btn-content {
      opacity: 0;
    }

.success-check {
      width: 28px;
      height: 28px;
      color: white;
    }

.success-check path {
      stroke-dasharray: 30;
      stroke-dashoffset: 30;
      animation: drawCheck 0.5s 0.1s ease forwards;
    }

@keyframes drawCheck {
      to { stroke-dashoffset: 0; }
    }

/* ═══════════════════════════════════════════════
       DIVIDER
       ═══════════════════════════════════════════════ */
    .divider {
      display: flex;
      align-items: center;
      gap: 16px;
      margin: 24px 0;
    }

.divider-line {
      flex: 1;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.08), transparent);
    }

.divider-text {
      font-size: 12px;
      font-weight: 400;
      color: rgba(176, 190, 220, 0.3);
      letter-spacing: 1px;
      text-transform: uppercase;
    }

/* ═══════════════════════════════════════════════
       SOCIAL BUTTONS (optional visual)
       ═══════════════════════════════════════════════ */
    .social-row {
      display: flex;
      gap: 12px;
      margin-bottom: 24px;
    }

.social-btn {
      flex: 1;
      height: 46px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(255, 255, 255, 0.07);
      border-radius: var(--radius-xs);
      cursor: pointer;
      transition: all var(--transition);
      color: rgba(176, 190, 220, 0.5);
    }

.social-btn:hover {
      background: rgba(255, 255, 255, 0.06);
      border-color: rgba(255, 255, 255, 0.12);
      color: rgba(176, 190, 220, 0.9);
      transform: translateY(-1px);
    }

.social-btn:active {
      transform: translateY(0) scale(0.97);
    }

.social-btn svg {
      width: 20px;
      height: 20px;
    }

/* ═══════════════════════════════════════════════
       FOOTER
       ═══════════════════════════════════════════════ */
    .card-footer {
      text-align: center;
      margin-top: 0;
    }

.card-footer p {
      font-size: 13.5px;
      color: rgba(176, 190, 220, 0.4);
    }

.register-link {
      color: var(--cyan);
      text-decoration: none;
      font-weight: 600;
      transition: all var(--transition);
      position: relative;
    }

.register-link:hover {
      color: #5eead4;
      text-shadow: 0 0 20px rgba(0, 229, 255, 0.3);
    }

/* ═══════════════════════════════════════════════
       SUCCESS OVERLAY
       ═══════════════════════════════════════════════ */
    .success-overlay {
      position: absolute;
      inset: 0;
      background: rgba(8, 12, 28, 0.92);
      backdrop-filter: blur(20px);
      border-radius: var(--radius);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      z-index: 100;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.5s ease;
    }

.success-overlay.visible {
      opacity: 1;
      pointer-events: auto;
    }

.success-ring {
      width: 80px;
      height: 80px;
      border-radius: 50%;
      border: 2px solid var(--success);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      box-shadow: 0 0 40px rgba(16, 185, 129, 0.2);
      animation: ringPop 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
      transform: scale(0);
    }

@keyframes ringPop {
      to { transform: scale(1); }
    }

.success-ring svg {
      width: 36px;
      height: 36px;
      color: var(--success);
    }

.success-title {
      font-size: 20px;
      font-weight: 700;
      color: var(--white);
      margin-bottom: 8px;
      animation: fadeUp 0.5s 0.2s ease forwards;
      opacity: 0;
      transform: translateY(10px);
    }

.success-subtitle {
      font-size: 13.5px;
      color: rgba(176, 190, 220, 0.5);
      animation: fadeUp 0.5s 0.35s ease forwards;
      opacity: 0;
      transform: translateY(10px);
    }

@keyframes fadeUp {
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

/* ═══════════════════════════════════════════════
       RESPONSIVE
       ═══════════════════════════════════════════════ */
    @media (max-width: 520px) {
      .login-card {
        padding: 36px 24px 32px;
        border-radius: 20px;
        max-width: 100%;
      }

.card-title { font-size: 22px; }
      .card-subtitle { font-size: 13px; }
      .input-field { height: 50px; font-size: 14px; }
      .login-btn { height: 50px; font-size: 14px; }
      .social-btn { height: 42px; }

.blob {
        filter: blur(60px);
      }
      .blob-1 { width: 300px; height: 300px; }
      .blob-2 { width: 350px; height: 350px; }
      .blob-3, .blob-4, .blob-5 { display: none; }
    }

@media (max-height: 700px) {
      .login-card {
        padding: 30px 32px 28px;
      }
      .card-header { margin-bottom: 24px; }
      .input-group { margin-bottom: 16px; }
      .meta-row { margin-bottom: 20px; }
      .divider { margin: 18px 0; }
      .brand-icon { width: 40px; height: 40px; margin-bottom: 14px; }
    }

/* ═══════════════════════════════════════════════
       ACCESSIBILITY: FOCUS VISIBLE
       ═══════════════════════════════════════════════ */
    .input-field:focus-visible,
    .login-btn:focus-visible,
    .social-btn:focus-visible,
    .forgot-link:focus-visible,
    .register-link:focus-visible {
      outline: 2px solid var(--cyan);
      outline-offset: 2px;
    }

/* Selection color */
    ::selection {
      background: rgba(0, 229, 255, 0.2);
      color: white;
    }
  </style>

function resize() {
        width = canvas.width = window.innerWidth;
        height = canvas.height = window.innerHeight;
      }

class Particle {
        constructor() {
          this.reset();
        }

reset() {
          this.x = Math.random() * width;
          this.y = Math.random() * height;
          this.size = Math.random() * 1.8 + 0.3;
          this.speedX = (Math.random() - 0.5) * 0.3;
          this.speedY = (Math.random() - 0.5) * 0.3;
          this.opacity = Math.random() * 0.4 + 0.1;
          this.opacitySpeed = Math.random() * 0.003 + 0.001;
          this.opacityDir = 1;
          const colors = [
            [0, 229, 255],
            [139, 92, 246],
            [59, 130, 246],
            [45, 212, 191],
            [200, 210, 240]
          ];
          this.color = colors[Math.floor(Math.random() * colors.length)];
        }

update() {
          this.x += this.speedX;
          this.y += this.speedY;
          this.opacity += this.opacitySpeed * this.opacityDir;

if (this.opacity >= 0.5) this.opacityDir = -1;
          if (this.opacity <= 0.05) this.opacityDir = 1;

if (this.x < -10 || this.x > width + 10 || this.y < -10 || this.y > height + 10) {
            this.reset();
          }
        }

draw() {
          const [r, g, b] = this.color;
          ctx.beginPath();
          ctx.arc(this.x, this.y, this.size, 0, Math.PI * 2);
          ctx.fillStyle = `rgba(${r}, ${g}, ${b}, ${this.opacity})`;
          ctx.fill();

if (this.size > 1.2) {
            ctx.beginPath();
            ctx.arc(this.x, this.y, this.size * 3, 0, Math.PI * 2);
            ctx.fillStyle = `rgba(${r}, ${g}, ${b}, ${this.opacity * 0.1})`;
            ctx.fill();
          }
        }
      }

function init() {
        resize();
        const count = Math.min(Math.floor((width * height) / 12000), 120);
        particles = Array.from({ length: count }, () => new Particle());
      }

function animate() {
        ctx.clearRect(0, 0, width, height);
        particles.forEach(p => {
          p.update();
          p.draw();
        });
        animationId = requestAnimationFrame(animate);
      }

function start() {
        init();
        animate();
        window.addEventListener('resize', () => {
          resize();
          const count = Math.min(Math.floor((width * height) / 12000), 120);
          while (particles.length < count) particles.push(new Particle());
          while (particles.length > count) particles.pop();
        });
      }

return { start };
    })();

/* ═══════════════════════════════════════════════
       CURSOR SPOTLIGHT & PARALLAX
       ═══════════════════════════════════════════════ */
    const CursorEffects = (() => {
      const glow = document.getElementById('cursor-glow');
      const card = document.getElementById('login-card');
      let mouseX = window.innerWidth / 2;
      let mouseY = window.innerHeight / 2;
      let currentX = mouseX;
      let currentY = mouseY;

function lerp(a, b, t) {
        return a + (b - a) * t;
      }

function handleMove(e) {
        mouseX = e.clientX;
        mouseY = e.clientY;
      }

function animate() {
        currentX = lerp(currentX, mouseX, 0.08);
        currentY = lerp(currentY, mouseY, 0.08);

glow.style.left = currentX + 'px';
        glow.style.top = currentY + 'px';

// Card parallax
        const rect = card.getBoundingClientRect();
        const cardCenterX = rect.left + rect.width / 2;
        const cardCenterY = rect.top + rect.height / 2;
        const deltaX = (mouseX - cardCenterX) / window.innerWidth;
        const deltaY = (mouseY - cardCenterY) / window.innerHeight;

card.style.transform = `perspective(1200px) rotateY(${deltaX * 2}deg) rotateX(${-deltaY * 2}deg)`;

requestAnimationFrame(animate);
      }

function init() {
        document.addEventListener('mousemove', handleMove);
        document.addEventListener('touchmove', (e) => {
          const t = e.touches[0];
          mouseX = t.clientX;
          mouseY = t.clientY;
        });
        animate();
      }

return { init };
    })();

/* ═══════════════════════════════════════════════
       FORM VALIDATION & INTERACTIONS
       ═══════════════════════════════════════════════ */
    const LoginForm = (() => {
      const form = document.getElementById('login-form');
      const emailInput = document.getElementById('email');
      const passwordInput = document.getElementById('password');
      const emailGroup = document.getElementById('email-group');
      const passwordGroup = document.getElementById('password-group');
      const emailError = document.getElementById('email-error');
      const passwordError = document.getElementById('password-error');
      const loginBtn = document.getElementById('login-btn');
      const toggleBtn = document.getElementById('toggle-password');
      const eyeOpen = document.getElementById('eye-open');
      const eyeClosed = document.getElementById('eye-closed');
      const strengthBars = document.querySelectorAll('.strength-bar');
      const strengthContainer = document.getElementById('password-strength');
      const strengthText = document.getElementById('strength-text');
      const successOverlay = document.getElementById('success-overlay');

let passwordVisible = false;
      let isSubmitting = false;

// Email validation
      function validateEmail(value) {
        if (!value.trim()) return 'Please enter your email address';
        const regex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
        if (!regex.test(value)) return 'Please enter a valid email address';
        return '';
      }

// Password validation
      function validatePassword(value) {
        if (!value) return 'Please enter your password';
        if (value.length < 6) return 'Password must be at least 6 characters';
        return '';
      }

// Password strength
      function getStrength(value) {
        if (!value) return 0;
        let score = 0;
        if (value.length >= 6) score++;
        if (value.length >= 10) score++;
        if (/[A-Z]/.test(value) && /[a-z]/.test(value)) score++;
        if (/[0-9]/.test(value)) score++;
        if (/[^A-Za-z0-9]/.test(value)) score++;
        return Math.min(score, 4);
      }

function updateStrength(value) {
        const strength = getStrength(value);

if (value.length > 0) {
          strengthContainer.classList.add('visible');
        } else {
          strengthContainer.classList.remove('visible');
          strengthText.textContent = '';
          return;
        }

const labels = ['', 'Weak', 'Fair', 'Good', 'Strong'];
        const classes = ['', 'strength-weak', 'strength-fair', 'strength-good', 'strength-strong'];
        const colors = ['', 'var(--error)', '#f59e0b', 'var(--cyan)', 'var(--success)'];

strengthBars.forEach((bar, i) => {
          bar.className = 'strength-bar';
          if (i < strength) {
            bar.classList.add('active', classes[strength]);
          }
        });

strengthText.textContent = labels[strength] || '';
        strengthText.style.color = colors[strength] || '';
      }

// Show/hide error
      function showError(group, errorEl, message) {
        group.classList.remove('valid');
        group.classList.add('error');
        errorEl.querySelector('span').textContent = message;
        errorEl.classList.add('visible');
      }

function clearError(group, errorEl) {
        group.classList.remove('error');
        errorEl.classList.remove('visible');
      }

function showValid(group) {
        group.classList.remove('error');
        group.classList.add('valid');
      }

// Toggle password visibility
      function togglePassword() {
        passwordVisible = !passwordVisible;
        passwordInput.type = passwordVisible ? 'text' : 'password';
        eyeOpen.style.display = passwordVisible ? 'none' : 'block';
        eyeClosed.style.display = passwordVisible ? 'block' : 'none';
      }

// Ripple effect
      function createRipple(e, btn) {
        const rect = btn.getBoundingClientRect();
        const ripple = document.createElement('span');
        ripple.classList.add('ripple');
        const size = Math.max(rect.width, rect.height);
        ripple.style.width = ripple.style.height = size + 'px';
        ripple.style.left = (e.clientX - rect.left - size / 2) + 'px';
        ripple.style.top = (e.clientY - rect.top - size / 2) + 'px';
        btn.appendChild(ripple);
        ripple.addEventListener('animationend', () => ripple.remove());
      }

// Has-value class for floating label
      function updateHasValue(input) {
        if (input.value.trim()) {
          input.classList.add('has-value');
        } else {
          input.classList.remove('has-value');
        }
      }

// Real-time validation
      function handleEmailInput() {
        updateHasValue(emailInput);
        const error = validateEmail(emailInput.value);
        if (emailGroup.classList.contains('error')) {
          if (!error) {
            clearError(emailGroup, emailError);
            showValid(emailGroup);
          } else {
            showError(emailGroup, emailError, error);
          }
        } else if (emailInput.value.trim() && !error) {
          showValid(emailGroup);
        } else {
          emailGroup.classList.remove('valid');
        }
      }

// Email blur validation
      function handleEmailBlur() {
        if (!emailInput.value.trim()) return;
        const error = validateEmail(emailInput.value);
        if (error) {
          showError(emailGroup, emailError, error);
        } else {
          clearError(emailGroup, emailError);
          showValid(emailGroup);
        }
      }

// Submit
      async function handleSubmit(e) {
        e.preventDefault();
        if (isSubmitting) return;

const emailErr = validateEmail(emailInput.value);
        const passErr = validatePassword(passwordInput.value);

let hasError = false;

if (emailErr) {
          showError(emailGroup, emailError, emailErr);
          hasError = true;
        } else {
          clearError(emailGroup, emailError);
          showValid(emailGroup);
        }

if (passErr) {
          showError(passwordGroup, passwordError, passErr);
          hasError = true;
        } else {
          clearError(passwordGroup, passwordError);
          showValid(passwordGroup);
        }

if (hasError) return;

// Start loading
        isSubmitting = true;
        loginBtn.classList.add('loading');
        loginBtn.disabled = true;

// Simulate API call
        await new Promise(resolve => setTimeout(resolve, 2000));

// Success
        loginBtn.classList.remove('loading');
        loginBtn.classList.add('success');

await new Promise(resolve => setTimeout(resolve, 800));

// Show overlay
        successOverlay.classList.add('visible');

// Reset after delay
        setTimeout(() => {
          loginBtn.classList.remove('success');
          loginBtn.disabled = false;
          isSubmitting = false;
          successOverlay.classList.remove('visible');
          form.reset();
          emailInput.classList.remove('has-value');
          passwordInput.classList.remove('has-value');
          emailGroup.classList.remove('valid');
          passwordGroup.classList.remove('valid');
          strengthContainer.classList.remove('visible');
          strengthText.textContent = '';
          strengthBars.forEach(b => b.className = 'strength-bar');
        }, 3500);
      }

function init() {
        emailInput.addEventListener('input', handleEmailInput);
        passwordInput.addEventListener('input', handlePasswordInput);
        emailInput.addEventListener('blur', handleEmailBlur);
        toggleBtn.addEventListener('click', togglePassword);
        loginBtn.addEventListener('click', (e) => createRipple(e, loginBtn));
        form.addEventListener('submit', handleSubmit);

// Initial has-value check (for autofill)
        setTimeout(() => {
          updateHasValue(emailInput);
          updateHasValue(passwordInput);
        }, 100);
      }

return { init };
    })();

/* ═══════════════════════════════════════════════
       INITIALIZATION
       ═══════════════════════════════════════════════ */
    document.addEventListener('DOMContentLoaded', () => {
      ParticleSystem.start();
      CursorEffects.init();
      LoginForm.init();
    });
  </script>