:root {
            --primary: #ff2d6f;
            --primary-dark: #c61d58;
            --accent: #4dd0e1;
            --neutral: #f3f5f7;
            --ink: #1f1f29;
            --muted: #5a5a6d;
            --border: #e2e4ec;
            --shadow: rgba(26, 24, 36, 0.08);
            --success: #22c55e;
            --error: #ef4444;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: "Inter", "Segoe UI", Roboto, sans-serif;
            background: linear-gradient(135deg, #f3f5f7 0%, #e8eef3 100%);
            color: var(--ink);
            line-height: 1.6;
            min-height: 100vh;
        }

        a {
            color: var(--primary);
            text-decoration: none;
        }

        a:hover {
            text-decoration: underline;
        }

        header {
            background: #ffffff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 8px var(--shadow);
        }

        .nav {
            max-width: 1440px;
            margin: 0 auto;
            padding: 1rem 2rem;
            display: flex;
            align-items: center;
            gap: 2rem;
            flex-wrap: wrap;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 0;
            font-weight: 700;
            font-size: 1.4rem;
            color: var(--primary);
            letter-spacing: -0.02em;
        }

        .brand i {
            font-size: 1.2rem;
            color: var(--ink);
            margin: 0 0.2rem;
        }

        .brand span {
            color: var(--ink);
        }

        .nav-links {
            display: flex;
            gap: 1.5rem;
            align-items: center;
        }

        .nav-links a {
            color: var(--ink);
            font-weight: 600;
            font-size: 0.95rem;
            transition: color 0.2s ease;
            text-decoration: none;
        }

        .nav-links a:hover {
            color: var(--primary);
        }

        .auth-container {
            max-width: 500px;
            margin: 3rem auto;
            padding: 0 1.5rem;
        }

        .auth-card {
            background: #ffffff;
            border-radius: 20px;
            padding: 3rem;
            box-shadow: 0 20px 60px rgba(31, 45, 61, 0.12);
        }

        .auth-header {
            text-align: center;
            margin-bottom: 2rem;
        }

        .auth-header h1 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

        .auth-header p {
            color: var(--muted);
        }

        .alert {
            padding: 1rem;
            border-radius: 10px;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: flex-start;
            gap: 0.75rem;
        }

        .alert i {
            margin-top: 0.15rem;
        }

        .alert-error {
            background: rgba(239, 68, 68, 0.1);
            color: var(--error);
            border: 1px solid rgba(239, 68, 68, 0.2);
        }

        .alert-success {
            background: rgba(34, 197, 94, 0.1);
            color: var(--success);
            border: 1px solid rgba(34, 197, 94, 0.2);
        }

        .alert ul {
            margin: 0;
            padding-left: 1.25rem;
        }

        .alert li {
            margin: 0.25rem 0;
        }

        .form-group {
            margin-bottom: 1.5rem;
        }

        label {
            display: block;
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--ink);
        }

        input[type="text"],
        input[type="email"],
        input[type="password"] {
            width: 100%;
            padding: 0.875rem 1rem;
            border: 2px solid var(--border);
            border-radius: 10px;
            font-size: 1rem;
            transition: all 0.2s ease;
            font-family: inherit;
        }

        input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255, 45, 111, 0.1);
        }

        .form-help {
            font-size: 0.85rem;
            color: var(--muted);
            margin-top: 0.5rem;
        }

        .password-strength {
            height: 4px;
            background: var(--border);
            border-radius: 999px;
            margin-top: 0.5rem;
            overflow: hidden;
        }

        .password-strength-bar {
            height: 100%;
            width: 0;
            transition: all 0.3s ease;
            border-radius: 999px;
        }

        .strength-weak {
            width: 33%;
            background: var(--error);
        }

        .strength-medium {
            width: 66%;
            background: var(--warning);
        }

        .strength-strong {
            width: 100%;
            background: var(--success);
        }

        .checkbox-wrapper {
            display: flex;
            align-items: flex-start;
            gap: 0.75rem;
            margin: 1.5rem 0;
        }

        .checkbox-wrapper input[type="checkbox"] {
            margin-top: 0.25rem;
            width: 18px;
            height: 18px;
            cursor: pointer;
        }

        .checkbox-wrapper label {
            margin: 0;
            font-weight: 400;
            cursor: pointer;
        }

        .btn {
            width: 100%;
            padding: 1rem;
            border: none;
            border-radius: 10px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            font-family: inherit;
        }

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

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(255, 45, 111, 0.3);
        }

        .divider {
            text-align: center;
            margin: 2rem 0;
            position: relative;
        }

        .divider::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            width: 100%;
            height: 1px;
            background: var(--border);
        }

        .divider span {
            background: #ffffff;
            padding: 0 1rem;
            position: relative;
            color: var(--muted);
            font-size: 0.9rem;
        }

        .social-login {
            display: grid;
            gap: 1rem;
        }

        .btn-social {
            padding: 0.875rem 1rem;
            border: 2px solid var(--border);
            border-radius: 10px;
            background: #ffffff;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.75rem;
            font-family: inherit;
        }

        .btn-social:hover {
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px var(--shadow);
        }

        .btn-social i {
            font-size: 1.2rem;
        }

        footer {
            background: #0f0f17;
            color: rgba(255,255,255,0.68);
            padding: 3rem 2rem;
            margin-top: 4rem;
        }

        .footer__inner {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            gap: 1.5rem;
        }

        .footer__top {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            justify-content: space-between;
            align-items: center;
            color: rgba(255,255,255,0.78);
        }

        .footer__meta {
            display: flex;
            gap: 1.2rem;
            flex-wrap: wrap;
            font-size: 0.9rem;
        }

        .footer__meta a {
            color: rgba(77,208,225,0.9);
            text-decoration: none;
        }

        .footer__meta a:hover {
            text-decoration: underline;
        }

        .legal {
            font-size: 0.75rem;
            color: rgba(255,255,255,0.45);
            line-height: 1.5;
        }

        .white {
            color: white!important;
        }

        @media (max-width: 768px) {
            .auth-card {
                padding: 2rem 1.5rem;
            }
            .nav {
                justify-content: center;
            }
        }.brand:hover {
            text-decoration:none;
        }