* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Segoe UI', sans-serif; }
body { background: linear-gradient(135deg, #e0f7fa 0%, #bbdefb 100%); min-height: 100vh; color: #333; overflow-x: hidden; }

/* Header */
.header { display: flex; justify-content: space-between; align-items: center; padding: 15px 20px; position: fixed; top: 0; left: 0; right: 0; z-index: 1000; background: rgba(255,255,255,0.95); backdrop-filter: blur(10px); box-shadow: 0 2px 10px rgba(0,0,0,0.05); }
.menu-icon, .language-selector { font-size: 24px; color: #1565c0; cursor: pointer; }
.language-selector { display: flex; align-items: center; gap: 5px; background: #e3f2fd; padding: 8px 15px; border-radius: 20px; font-weight: 600; font-size: 14px; }

/* Container */
.container { max-width: 100%; padding: 100px 20px 40px; text-align: center; }
.logo { width: 180px; height: auto; margin-bottom: 20px; }
.logo-section h1 { font-size: 28px; font-weight: 700; color: #1a237e; line-height: 1.4; }

/* Form */
.login-form { display: flex; flex-direction: column; gap: 20px; max-width: 400px; margin: 0 auto; }
.login-form input { width: 100%; padding: 16px; border: none; border-bottom: 1px solid #ccc; font-size: 16px; background: transparent; outline: none; transition: border-color 0.3s; }
.login-form input:focus { border-bottom-color: #1565c0; }
.password-field { position: relative; }
.toggle-password { position: absolute; right: 15px; top: 50%; transform: translateY(-50%); color: #1565c0; cursor: pointer; font-size: 18px; }
.forgot-password { text-align: right; color: #1565c0; text-decoration: underline; font-size: 14px; margin-top: -10px; }

/* Buttons */
.btn-login, .btn-register { width: 100%; padding: 16px; border: none; border-radius: 50px; font-size: 16px; font-weight: 600; cursor: pointer; transition: all 0.3s; }
.btn-login { background: #1565c0; color: white; box-shadow: 0 4px 15px rgba(21, 101, 192, 0.3); }
.btn-login:active { transform: scale(0.98); }
.btn-register { background: transparent; color: #1565c0; border: 2px solid #1565c0; margin-top: 10px; }

/* Chat Button */
.chat-button { position: fixed; bottom: 30px; right: 30px; width: 60px; height: 60px; background: #1565c0; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: white; font-size: 24px; box-shadow: 0 4px 20px rgba(21, 101, 192, 0.4); cursor: pointer; z-index: 999; }