/* --- ECOSCAN THEME VARIABLES --- */
        :root {
            /* Light Gradient Background */
            --bg-gradient: linear-gradient(180deg, #ffffff 0%, #e0f2fe 0%, #dcfce7 100%);
            
            /* Card & Layout */
            --card-bg: #ffffff;
            --shadow: 0 20px 40px rgba(0, 166, 118, 0.15); /* Soft green shadow */
            
            /* Brand Colors */
            --primary-color: #00a676; /* EcoScan Green */
            --primary-hover: #008f65;
            --secondary-bg: #f0fdf4; /* Very light green */
            
            /* Typography */
            --text-main: #0f172a; /* Dark Navy/Black */
            --text-muted: #64748b; /* Slate Grey */
            
            /* Inputs */
            --input-bg: #f8fafc;
            --input-border: #e2e8f0;
            --input-focus: #00a676;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Inter', sans-serif;
        }

        body {
            background: var(--bg-gradient);
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            color: var(--text-main);
        }

        /* Main Container */
        .container {
            display: flex;
            background-color: var(--card-bg);
            width: 1000px;
            max-width: 95%;
            height: 650px;
            border-radius: 24px;
            box-shadow: var(--shadow);
            overflow: hidden;
            border: 1px solid rgba(255,255,255,0.8);
        }

        /* Left Section (Branding) */
        .login-bg{
            background: linear-gradient(rgba(0, 166, 118, 0.8), rgba(13, 59, 46, 0.8)), url('../img/login-bg.webp');
        }
        .signup-bg{
            background: linear-gradient(rgba(0, 166, 118, 0.8), rgba(13, 59, 46, 0.8)), url('../img/signup-bg.webp');
        }
        .left-section {
            flex: 1;
            position: relative;
            /* Updated to a nature/leaf abstract image to match the Eco vibe */
            /*background: linear-gradient(rgba(0, 166, 118, 0.8), rgba(13, 59, 46, 0.8)), 
                        url('https://images.unsplash.com/photo-1542601906990-b4d3fb778b09?q=80&w=1913&auto=format&fit=crop');*/
            background-size: cover;
            background-position: center;
            padding: 40px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            color: white;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 26px;
            font-weight: 800;
            letter-spacing: -0.5px;
        }
        
        .logo i {
            background: white;
            color: var(--primary-color);
            padding: 8px;
            border-radius: 8px;
            font-size: 20px;
        }

        .back-btn {
            position: absolute;
            top: 40px;
            right: 40px;
            text-decoration: none;
            color: white;
            background: rgba(255, 255, 255, 0.2);
            padding: 8px 16px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 500;
            backdrop-filter: blur(5px);
            transition: 0.3s;
        }

        .back-btn:hover {
            background: white;
            color: var(--primary-color);
        }

        .caption-area {
            text-align: left;
        }

        .caption-area h2 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 20px;
        }
        
        /* New "Badge" style from EcoScan */
        .eco-badge {
            display: inline-block;
            background: rgba(255,255,255,0.2);
            padding: 6px 12px;
            border-radius: 20px;
            font-size: 12px;
            margin-bottom: 15px;
            backdrop-filter: blur(4px);
            border: 1px solid rgba(255,255,255,0.3);
        }

        /* Right Section (Form) */
        .right-section {
            flex: 1;
            padding: 60px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .form-header {
            margin-bottom: 30px;
        }

        .form-header h1 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 10px;
            letter-spacing: -1px;
        }

        .form-header p {
            color: var(--text-muted);
            font-size: 15px;
        }

        .form-header a {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 600;
        }

        /* Inputs */
        .input-row {
            display: flex;
            gap: 15px;
            margin-bottom: 15px;
        }

        .input-group {
            position: relative;
            margin-bottom: 20px;
            width: 100%;
        }

        input[type="text"],
        input[type="email"],
        input[type="password"] {
            width: 100%;
            background-color: var(--input-bg);
            border: 1px solid var(--input-border);
            padding: 16px;
            border-radius: 12px;
            color: var(--text-main);
            outline: none;
            font-size: 15px;
            transition: 0.3s;
            font-weight: 500;
        }

        input::placeholder {
            color: #94a3b8;
        }

        input:focus {
            background-color: white;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 4px rgba(0, 166, 118, 0.1);
        }

        .eye-icon {
            position: absolute;
            right: 15px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            cursor: pointer;
        }

        /* Checkbox */
        .checkbox-group {
            display: flex;
            align-items: center;
            margin-bottom: 30px;
            font-size: 14px;
            color: var(--text-muted);
        }

        .checkbox-group input {
            margin-right: 12px;
            accent-color: var(--primary-color);
            width: 18px;
            height: 18px;
            cursor: pointer;
        }

        .checkbox-group a {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 600;
        }
        
        /* Forgot Pass */
        
        .forgot-se {
            display: block;
            align-items: center;
            margin-bottom: 30px;
            font-size: 14px;
            text-align: right;
            color: var(--text-muted);
        }
        
        .forgot-se a {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 600;
            text-align: right;
        }
        
        .forgot-se a:hover{
            color: var(--primary-hover);
        }

        /* Buttons */
        .submit-btn {
            width: 100%;
            background-color: var(--primary-color);
            color: white;
            padding: 16px;
            border: none;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.3s;
            margin-bottom: 25px;
            box-shadow: 0 4px 12px rgba(0, 166, 118, 0.2);
        }

        .submit-btn:hover {
            background-color: var(--primary-hover);
            transform: translateY(-2px);
        }

        .divider {
            display: flex;
            align-items: center;
            text-align: center;
            margin-bottom: 25px;
            color: var(--text-muted);
            font-size: 13px;
            font-weight: 500;
        }

        .divider::before,
        .divider::after {
            content: '';
            flex: 1;
            border-bottom: 1px solid var(--input-border);
        }

        .divider span {
            padding: 0 15px;
            background: var(--card-bg);
        }

        .social-buttons {
            display: flex;
            gap: 15px;
        }

        .social-btn {
            flex: 1;
            background-color: white;
            border: 1px solid var(--input-border);
            color: var(--text-main);
            padding: 14px;
            border-radius: 12px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            transition: 0.3s;
            font-weight: 500;
        }

        .social-btn:hover {
            background-color: var(--input-bg);
            border-color: #cbd5e1;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .container {
                flex-direction: column;
                height: auto;
                width: 100%;
                border-radius: 0;
                box-shadow: none;
            }
            .left-section {
                height: 250px;
                padding: 30px;
            }
            .right-section {
                padding: 30px;
            }
        }

.error-message {
  margin-top: 0px;
  margin-bottom: 18px;
  font-size: 14px;
  font-weight: 500;
  color: #e53935; /* red */
  background: rgba(229, 57, 53, 0.08);
  padding: 10px 14px;
  border-radius: 8px;
  display: none;
}