:root {
            --bg-color: #F2F2F7;
            --surface-color: #FFFFFF;
            --text-main: #1C1C1E;
            --text-secondary: #8E8E93;
            --error-color: #FF3B30;
            --success-color: #34C759;
            --primary-color: #007AFF;
            --primary-gradient: linear-gradient(135deg, #007AFF 0%, #00C6FF 100%);
            --telegram-color: #24A1DE;
            --border-radius: 16px;
            --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.05);
            --shadow-float: 0 10px 30px rgba(0, 122, 255, 0.25);
        }

        * { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }

        body {
            font-family: 'Inter', sans-serif;
            background-color: var(--bg-color);
            color: var(--text-main);
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }

        .register-container {
            width: 100%;
            max-width: 400px;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .register-header {
            text-align: center;
            padding: 10px 0;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
        }

        .register-logo {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: var(--primary-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            box-shadow: var(--shadow-float);
        }

        .register-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
        }

        .register-form {
            background: var(--surface-color);
            border-radius: var(--border-radius);
            padding: 20px;
            box-shadow: var(--shadow-soft);
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .form-group { display: flex; flex-direction: column; gap: 6px; }

        .form-label {
            font-size: 12px;
            font-weight: 600;
            color: var(--text-secondary);
            text-transform: uppercase;
            letter-spacing: 0.3px;
        }

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

        .form-input {
            width: 100%;
            padding: 12px 14px;
            padding-left: 40px;
            border: 2px solid #E5E5EA;
            border-radius: var(--border-radius);
            font-size: 15px;
            font-family: inherit;
            color: var(--text-main);
            background: var(--bg-color);
            transition: border-color 0.2s, box-shadow 0.2s;
            outline: none;
        }

        .form-input:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.15);
        }

        .form-input.error {
            border-color: var(--error-color);
        }

        .form-input.error:focus {
            box-shadow: 0 0 0 3px rgba(255, 59, 48, 0.15);
        }

        .form-icon {
            position: absolute;
            left: 12px;
            width: 18px;
            height: 18px;
            fill: var(--text-secondary);
            pointer-events: none;
        }

        .form-error {
            font-size: 11px;
            color: var(--error-color);
            font-weight: 500;
            display: none;
        }

        .form-error.visible { display: block; }

        .show-password {
            position: absolute;
            right: 12px;
            width: 18px;
            height: 18px;
            fill: var(--text-secondary);
            cursor: pointer;
            background: none;
            border: none;
            padding: 0;
        }

        .checkbox-group {
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .checkbox-input {
            width: 18px;
            height: 18px;
            accent-color: var(--primary-color);
            cursor: pointer;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .checkbox-label {
            font-size: 12px;
            color: var(--text-secondary);
            line-height: 1.4;
        }

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

        .checkbox-label a:hover { text-decoration: underline; }

        .register-btn {
            width: 100%;
            padding: 14px 20px;
            background: var(--primary-gradient);
            color: white;
            border: none;
            border-radius: var(--border-radius);
            font-size: 15px;
            font-weight: 700;
            font-family: inherit;
            cursor: pointer;
            transition: all 0.2s;
            box-shadow: var(--shadow-float);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

        .register-btn:hover {
            box-shadow: 0 12px 40px rgba(0, 122, 255, 0.35);
            transform: translateY(-1px);
        }

        .register-btn:active { transform: scale(0.98); }

        .divider {
            display: flex;
            align-items: center;
            gap: 10px;
            margin: 4px 0;
        }

        .divider::before, .divider::after {
            content: '';
            flex: 1;
            height: 1px;
            background: #E5E5EA;
        }

        .divider span {
            font-size: 12px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .telegram-btn {
            width: 100%;
            padding: 14px 20px;
            background: var(--telegram-color);
            color: white;
            border: none;
            border-radius: var(--border-radius);
            font-size: 15px;
            font-weight: 700;
            font-family: inherit;
            cursor: pointer;
            transition: all 0.2s;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }

        .telegram-btn:hover { background: #1f8ec4; transform: translateY(-1px); }
        .telegram-btn:active { transform: scale(0.98); }
        .telegram-btn svg { width: 20px; height: 20px; fill: white; }

        .register-footer {
            text-align: center;
            font-size: 12px;
            color: var(--text-secondary);
            padding: 8px 0;
        }

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

        .register-footer a:hover { text-decoration: underline; }

        .alert {
            padding: 10px 14px;
            border-radius: var(--border-radius);
            font-size: 12px;
            font-weight: 500;
            display: none;
            align-items: center;
            gap: 8px;
        }

        .alert.error {
            background: #FFEBEE;
            color: var(--error-color);
            border: 1px solid #FFCDD2;
        }

        .alert.success {
            background: #E8F5E9;
            color: var(--success-color);
            border: 1px solid #C8E6C9;
        }

        .alert.visible { display: flex; }

        .password-strength { display: flex; gap: 4px; margin-top: 6px; }

        .strength-bar {
            flex: 1;
            height: 4px;
            background: #E5E5EA;
            border-radius: 2px;
            transition: background 0.3s;
        }

        .strength-bar.weak { background: var(--error-color); }
        .strength-bar.medium { background: #FF9800; }
        .strength-bar.strong { background: var(--success-color); }

        .strength-text {
            font-size: 11px;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        @media (max-width: 480px) {
            .register-container { gap: 16px; }
            .register-form { padding: 16px; }
            .register-header { gap: 10px; }
            .register-logo { width: 36px; height: 36px; font-size: 18px; }
            .register-title { font-size: 16px; }
        }